/* roulang page: index */
/* =========================================================
   1. 设计变量
   ========================================================= */
:root{
  --ink:#0F1113;
  --ink-2:#1B1F23;
  --paper:#F5F3EE;
  --lime:#C6F24E;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --text-2:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);
  --card:#FFFFFF;

  --radius-card:18px;
  --radius-sm:10px;
  --radius-img:14px;
  --radius-pill:999px;

  --shadow:0 18px 40px rgba(15,17,19,.07);
  --shadow-strong:0 24px 56px rgba(15,17,19,.14);

  --ease:cubic-bezier(.22,1,.36,1);
  --dur:260ms;

  --container:1200px;
  --gutter:32px;

  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* =========================================================
   2. Reset / 基础排版
   ========================================================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
table{border-collapse:collapse;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

/* =========================================================
   3. 容器与板块
   ========================================================= */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:120px 0;position:relative;}
.section--tight{padding:96px 0;}
.section--ink{background:var(--ink);color:var(--paper);}
.section--paper{background:var(--paper);}
.section--white{background:#FFFFFF;}

.sec-head{max-width:760px;margin-bottom:56px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--text-2);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);flex:0 0 auto;}
.section--ink .eyebrow{color:rgba(245,243,238,.6);}
.sec-title{
  margin-top:14px;
  font-size:clamp(1.7rem,3.2vw,2.6rem);
  font-weight:700;line-height:1.22;letter-spacing:-.01em;
}
.sec-sub{margin-top:16px;color:var(--text-2);font-size:16px;line-height:1.8;max-width:680px;}
.section--ink .sec-sub{color:rgba(245,243,238,.66);}

/* =========================================================
   4. 浮动 Dock 导航
   ========================================================= */
.site-head{
  position:fixed;top:16px;left:0;right:0;z-index:200;
  display:flex;justify-content:center;
  padding:0 20px;
  transition:top var(--dur) var(--ease);
}
.site-head.is-scrolled{top:10px;}

.dock-nav{
  position:relative;
  width:100%;max-width:1160px;
  display:flex;align-items:center;gap:20px;
  height:64px;padding:0 12px 0 24px;
  border-radius:var(--radius-pill);
  background:rgba(15,17,19,.5);
  border:1px solid rgba(255,255,255,.16);
  color:var(--paper);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease),
             border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             color var(--dur) var(--ease);
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  background:rgba(245,243,238,.92);
  border-color:rgba(15,17,19,.09);
  color:var(--ink);
  box-shadow:0 14px 38px rgba(15,17,19,.16);
}

.dock-logo{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;letter-spacing:-.01em;
  white-space:nowrap;
}
.dock-logo__mark{
  width:24px;height:24px;border-radius:8px;flex:0 0 auto;
  background:var(--lime);
  position:relative;
  transition:transform var(--dur) var(--ease);
}
.dock-logo__mark::after{
  content:"";position:absolute;inset:7px 6px auto 6px;height:10px;
  border-left:3px solid var(--ink);border-right:3px solid var(--ink);
}
.dock-logo:hover .dock-logo__mark{transform:rotate(-8deg) scale(1.06);}

.dock-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-menu a{
  position:relative;
  display:inline-flex;align-items:center;height:38px;
  padding:0 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:rgba(245,243,238,.78);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.dock-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--lime);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.dock-menu a:hover{color:#fff;}
.dock-menu a:hover::after{transform:scaleX(1);}
.dock-menu a.is-active{color:#fff;}
.dock-menu a.is-active::after{transform:scaleX(1);}

.site-head.is-scrolled .dock-menu a{color:rgba(42,45,49,.76);}
.site-head.is-scrolled .dock-menu a:hover,
.site-head.is-scrolled .dock-menu a.is-active{color:var(--ink);}

.dock-actions{display:flex;align-items:center;gap:10px;}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.22);
}
.dock-toggle span{
  display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative;
}
.dock-toggle span::before,
.dock-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;border-radius:2px;
}
.dock-toggle span::before{top:-5px;}
.dock-toggle span::after{top:5px;}
.site-head.is-scrolled .dock-toggle{border-color:rgba(15,17,19,.14);}

/* 移动端抽屉 */
.dock-drawer{
  position:fixed;inset:0;z-index:210;
  background:var(--ink);color:var(--paper);
  display:none;flex-direction:column;
  padding:110px 28px 40px;
}
.dock-drawer.is-open{display:flex;}
.dock-drawer__list{display:flex;flex-direction:column;gap:6px;}
.dock-drawer__list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:20px;font-weight:600;
  border-bottom:1px solid var(--line-dark);
}
.dock-drawer__list a span{font-family:var(--font-mono);font-size:12px;color:var(--lime);}
.dock-drawer__cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.dock-drawer__close{
  position:absolute;top:26px;right:26px;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:center;font-size:20px;
}

/* =========================================================
   5. 按钮系统
   ========================================================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.btn--primary{background:var(--ink);color:#fff;}
.btn--primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);box-shadow:0 12px 26px rgba(198,242,78,.28);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,255,255,.18);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
.btn--ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn--outline{background:transparent;color:var(--ink);border-color:var(--line);}
.btn--outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn--sm{height:42px;padding:0 20px;font-size:14px;}
.btn--block{width:100%;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
}
.link-arrow i{font-style:normal;transition:transform var(--dur) var(--ease);}
.link-arrow:hover{color:var(--orange);}
.link-arrow:hover i{transform:translateX(4px);}
.section--ink .link-arrow{color:var(--lime);}

/* =========================================================
   6. 徽章 / 标签
   ========================================================= */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);
  font-family:var(--font-mono);letter-spacing:.02em;
  background:#fff;
}
.tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange);}
.section--ink .tag{
  background:rgba(255,255,255,.06);
  border-color:var(--line-dark);
  color:rgba(245,243,238,.76);
}

/* =========================================================
   7. Hero 渠道主视觉
   ========================================================= */
.hero-channel{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  padding:180px 0 110px;
  background:var(--ink);
  color:var(--paper);
  overflow:hidden;
}
.hero-channel__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-channel__veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(15,17,19,.86) 0%,rgba(15,17,19,.62) 42%,rgba(15,17,19,.93) 100%),
    radial-gradient(1000px 520px at 82% 18%,rgba(198,242,78,.16),transparent 62%);
}
.hero-channel__inner{position:relative;z-index:2;}
.hero-channel__grid{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);gap:64px;align-items:center;}
.hero-channel .eyebrow{color:rgba(245,243,238,.7);}
.hero-channel h1{
  margin-top:22px;
  font-size:clamp(2.4rem,5.4vw,4.2rem);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  max-width:16em;
}
.hero-channel h1 em{
  font-style:normal;
  background:linear-gradient(180deg,transparent 62%,rgba(198,242,78,.42) 62%);
  padding:0 2px;
}
.hero-channel__sub{
  margin-top:24px;
  font-size:clamp(1.05rem,1.6vw,1.28rem);
  line-height:1.6;
  color:rgba(245,243,238,.8);
  max-width:24em;
}
.hero-channel__btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.hero-channel__trust{
  display:flex;flex-wrap:wrap;align-items:center;gap:0;
  margin-top:40px;
  font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:.06em;
  color:rgba(245,243,238,.62);
}
.hero-channel__trust li{display:flex;align-items:center;}
.hero-channel__trust li+li::before{
  content:"";width:4px;height:4px;border-radius:50%;
  background:var(--lime);margin:0 14px;flex:0 0 auto;
}
.hero-channel__panel{
  position:relative;
  border-radius:22px;
  border:1px solid var(--line-dark);
  background:rgba(27,31,35,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.hero-channel__panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.hero-channel__panel-head strong{font-size:15px;font-weight:700;}
.hero-channel__panel-head span{font-family:var(--font-mono);font-size:11.5px;color:var(--lime);letter-spacing:.1em;}
.score-list{margin-top:20px;display:flex;flex-direction:column;gap:1px;background:var(--line-dark);border-radius:12px;overflow:hidden;}
.score-list li{
  background:rgba(15,17,19,.6);
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;
  transition:background var(--dur) var(--ease);
}
.score-list li:hover{background:rgba(198,242,78,.08);}
.score-list b{
  font-family:var(--font-mono);font-size:12px;font-weight:600;
  color:var(--orange);min-width:46px;
}
.score-list em{font-style:normal;font-size:14.5px;color:rgba(245,243,238,.9);flex:1;}
.score-list i{
  font-style:normal;font-family:var(--font-mono);font-size:13px;
  color:var(--lime);letter-spacing:.04em;
}
.hero-channel__panel-foot{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(245,243,238,.6);
}

/* =========================================================
   8. 数据条
   ========================================================= */
.stat-strip{
  background:var(--ink-2);
  color:var(--paper);
  border-top:1px solid var(--line-dark);
  padding:40px 0;
}
.stat-strip__grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.stat-item{border-left:1px solid var(--line-dark);padding-left:20px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item b{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,2.8vw,2.2rem);
  font-weight:700;color:var(--lime);letter-spacing:-.02em;line-height:1.1;
}
.stat-item span{display:block;margin-top:8px;font-size:13.5px;color:rgba(245,243,238,.6);}

/* =========================================================
   9. 核心能力卡片
   ========================================================= */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card-feature{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px 28px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-feature:hover{
  transform:translateY(-6px);
  border-color:var(--lime);
  box-shadow:var(--shadow);
}
.card-feature__num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--orange);
}
.card-feature h3{font-size:1.24rem;font-weight:700;line-height:1.4;}
.card-feature p{font-size:15px;color:var(--text-2);line-height:1.8;}
.card-feature__list{margin-top:4px;display:flex;flex-direction:column;gap:8px;}
.card-feature__list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--text-2);
}
.card-feature__list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:2px;background:var(--lime);
}
.card-feature--media{padding:0;overflow:hidden;}
.card-feature--media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform 420ms var(--ease);
}
.card-feature--media:hover img{transform:scale(1.04);}
.card-feature__body{padding:26px 28px 32px;display:flex;flex-direction:column;gap:12px;}

/* =========================================================
   10. 三步上手流程
   ========================================================= */
.step-list{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
}
.step-item{
  position:relative;
  padding:38px 32px 38px 0;
  border-right:1px solid var(--line);
}
.step-item:last-child{border-right:0;padding-right:0;}
.step-item:not(:first-child){padding-left:32px;}
.step-item__head{display:flex;align-items:baseline;gap:14px;}
.step-item__num{
  font-family:var(--font-mono);
  font-size:clamp(2.2rem,4vw,3.2rem);
  font-weight:700;line-height:1;
  color:var(--ink);letter-spacing:-.03em;
}
.step-item h3{font-size:1.18rem;font-weight:700;}
.step-item p{margin-top:16px;font-size:15px;color:var(--text-2);line-height:1.85;}
.step-item__meta{
  margin-top:20px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.08em;color:var(--orange);
}

/* =========================================================
   11. 案例证明（左右交错）
   ========================================================= */
.case-list{display:flex;flex-direction:column;gap:64px;}
.case-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.case-row--reverse .case-row__media{order:2;}
.case-row__media{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.case-row__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform 480ms var(--ease);
}
.case-row:hover .case-row__media img{transform:scale(1.04);}
.case-row__body h3{
  margin-top:18px;
  font-size:clamp(1.35rem,2.4vw,1.85rem);
  font-weight:700;line-height:1.35;letter-spacing:-.01em;
}
.case-row__body p{margin-top:16px;font-size:15.5px;color:var(--text-2);line-height:1.85;}
.case-metrics{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-top:28px;padding-top:24px;border-top:1px solid var(--line);
}
.case-metrics div b{
  display:block;font-family:var(--font-mono);
  font-size:1.6rem;font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.1;
}
.case-metrics div span{display:block;margin-top:6px;font-size:13px;color:var(--text-2);}
.case-metrics div b em{font-style:normal;color:var(--orange);font-size:.7em;margin-left:2px;}

/* =========================================================
   12. 分类入口
   ========================================================= */
.cat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.card-cat{
  position:relative;
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px 26px;
  overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-cat::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--lime);
  transform:scaleY(0);transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.card-cat:hover{transform:translateY(-6px);border-color:var(--ink);box-shadow:var(--shadow);}
.card-cat:hover::before{transform:scaleY(1);}
.card-cat__idx{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--orange);
}
.card-cat h3{margin-top:14px;font-size:1.15rem;font-weight:700;}
.card-cat p{margin-top:12px;font-size:14.5px;color:var(--text-2);line-height:1.8;flex:1;}
.card-cat__go{
  margin-top:22px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.card-cat__go i{font-style:normal;transition:transform var(--dur) var(--ease);}
.card-cat:hover .card-cat__go i{transform:translateX(4px);}

/* =========================================================
   13. 最新信息（CMS 列表）
   ========================================================= */
.news-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:44px;
}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card-post{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-post:hover{transform:translateY(-6px);border-color:var(--ink);box-shadow:var(--shadow);}
.card-post__link{display:flex;flex-direction:column;height:100%;padding:26px 26px 28px;gap:14px;}
.card-post__meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.card-post__time{
  font-family:var(--font-mono);font-size:12px;color:var(--text-2);letter-spacing:.02em;
}
.card-post__title{
  font-size:1.08rem;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-post__excerpt{
  font-size:14.5px;color:var(--text-2);line-height:1.8;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-post__more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--orange);}
.card-post__more i{font-style:normal;transition:transform var(--dur) var(--ease);}
.card-post:hover .card-post__more i{transform:translateX(4px);}

.empty-state{
  grid-column:1/-1;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:#fff;
  padding:56px 32px;
  text-align:center;
}
.empty-state p{color:var(--text-2);font-size:15.5px;}
.empty-state .btn{margin-top:22px;}

/* =========================================================
   14. FAQ
   ========================================================= */
.faq-wrap{
  display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  gap:64px;align-items:start;
}
.faq-side h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:700;line-height:1.25;margin-top:14px;}
.faq-side p{margin-top:18px;color:var(--text-2);font-size:15.5px;line-height:1.85;}
.faq-side .btn{margin-top:28px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--orange);}
.faq-item.is-open .faq-q{transform:translateX(4px);}
.faq-sign{
  position:relative;flex:0 0 auto;width:22px;height:22px;
  transition:transform var(--dur) var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-sign::before{left:0;top:10px;width:22px;height:2px;}
.faq-sign::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-sign{transform:rotate(45deg);color:var(--orange);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 340ms var(--ease),opacity 240ms var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{
  padding:0 48px 26px 4px;
  font-size:15.5px;color:var(--text-2);line-height:1.9;
}

/* =========================================================
   15. 立即开通 CTA
   ========================================================= */
.cta-open{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  overflow:hidden;
}
.cta-open__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.22;
}
.cta-open__veil{
  position:absolute;inset:0;
  background:radial-gradient(760px 420px at 78% 12%,rgba(198,242,78,.2),transparent 60%),
             linear-gradient(180deg,rgba(15,17,19,.9),rgba(15,17,19,.98));
}
.cta-open__inner{position:relative;z-index:2;}
.cta-open__grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.86fr);
  gap:64px;align-items:center;
}
.cta-open h2{
  margin-top:14px;
  font-size:clamp(1.8rem,3.4vw,2.7rem);
  font-weight:700;line-height:1.24;letter-spacing:-.01em;
}
.cta-open p.lead{margin-top:18px;color:rgba(245,243,238,.72);font-size:16px;line-height:1.85;max-width:34em;}
.cta-points{margin-top:28px;display:flex;flex-direction:column;gap:12px;}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:rgba(245,243,238,.82);}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.58em;
  width:8px;height:8px;border-radius:2px;background:var(--lime);
}
.cta-form{
  background:rgba(27,31,35,.78);
  border:1px solid var(--line-dark);
  border-radius:22px;
  padding:32px 28px;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cta-form h3{font-size:1.15rem;font-weight:700;}
.cta-form .form-note{margin-top:8px;font-size:13.5px;color:rgba(245,243,238,.56);}
.field{margin-top:20px;}
.field label{
  display:block;font-size:13px;color:rgba(245,243,238,.66);
  margin-bottom:8px;font-family:var(--font-mono);letter-spacing:.06em;
}
.field input,.field select{
  width:100%;height:50px;padding:0 16px;
  border-radius:var(--radius-sm);
  background:rgba(15,17,19,.72);
  border:1px solid var(--line-dark);
  color:var(--paper);font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  appearance:none;
}
.field input::placeholder{color:rgba(245,243,238,.34);}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--lime);
  box-shadow:0 0 0 3px rgba(198,242,78,.2);
}
.cta-form .btn{margin-top:26px;}
.cta-form .form-tip{margin-top:14px;font-size:12.5px;color:rgba(245,243,238,.44);}

/* =========================================================
   16. 页脚
   ========================================================= */
.site-footer{
  background:var(--ink);
  color:rgba(245,243,238,.72);
  padding:88px 0 0;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;
  gap:48px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:var(--paper);
}
.footer-brand__mark{
  width:24px;height:24px;border-radius:8px;background:var(--lime);position:relative;flex:0 0 auto;
}
.footer-brand__mark::after{
  content:"";position:absolute;inset:7px 6px auto 6px;height:10px;
  border-left:3px solid var(--ink);border-right:3px solid var(--ink);
}
.site-footer p.brand-desc{
  margin-top:20px;font-size:14.5px;line-height:1.85;color:rgba(245,243,238,.56);max-width:32em;
}
.footer-col h4{
  font-size:13px;font-family:var(--font-mono);letter-spacing:.14em;
  color:rgba(245,243,238,.44);font-weight:600;text-transform:uppercase;
}
.footer-col ul{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14.5px;}
.footer-col a{color:rgba(245,243,238,.76);}
.footer-col a:hover{color:var(--lime);}
.footer-col .plain{color:rgba(245,243,238,.6);line-height:1.8;font-size:14px;}
.footer-bottom{
  margin-top:72px;
  border-top:1px solid var(--line-dark);
  padding:26px 0 34px;
  display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(245,243,238,.44);
}
.footer-bottom .mono{font-family:var(--font-mono);letter-spacing:.04em;}

/* =========================================================
   17. 进场动效
   ========================================================= */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 620ms var(--ease),transform 620ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
.reveal[data-delay="1"]{transition-delay:60ms;}
.reveal[data-delay="2"]{transition-delay:120ms;}
.reveal[data-delay="3"]{transition-delay:180ms;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* =========================================================
   18. 响应式
   ========================================================= */
@media (max-width:1023px){
  .section{padding:84px 0;}
  .section--tight{padding:72px 0;}
  .dock-menu,.dock-actions{display:none;}
  .dock-toggle{display:flex;margin-left:auto;}
  .dock-nav{padding:0 12px 0 20px;height:60px;}
  .hero-channel{min-height:auto;padding:150px 0 88px;}
  .hero-channel__grid{grid-template-columns:1fr;gap:48px;}
  .hero-channel h1{max-width:none;}
  .stat-strip__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-list{grid-template-columns:1fr;}
  .step-item{border-right:0;border-bottom:1px solid var(--line);padding:32px 0;}
  .step-item:not(:first-child){padding-left:0;}
  .step-item:last-child{border-bottom:0;}
  .case-row{grid-template-columns:1fr;gap:32px;}
  .case-row--reverse .case-row__media{order:0;}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:40px;}
  .cta-open__grid{grid-template-columns:1fr;gap:44px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:44px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:62px 0;}
  .section--tight{padding:54px 0;}
  .sec-head{margin-bottom:36px;}
  .hero-channel{padding:130px 0 68px;}
  .hero-channel h1{font-size:clamp(2rem,8.4vw,2.7rem);}
  .hero-channel__btns{flex-direction:column;align-items:stretch;}
  .hero-channel__btns .btn{width:100%;}
  .hero-channel__trust{flex-direction:column;align-items:flex-start;gap:8px;}
  .hero-channel__trust li+li::before{display:none;}
  .hero-channel__panel{padding:20px;}
  .score-list li{flex-wrap:wrap;gap:8px;}
  .stat-strip__grid{grid-template-columns:1fr;gap:22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line-dark);padding-top:18px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .feature-grid{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .case-metrics{gap:24px;}
  .faq-a p{padding-right:24px;}
  .footer-grid{grid-template-columns:1fr;gap:38px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-form{padding:26px 20px;}
}
@media (max-width:560px){
  .btn{height:46px;padding:0 22px;font-size:14.5px;}
  .sec-title{font-size:1.55rem;}
  .card-feature{padding:26px 22px;}
  .card-post__link{padding:22px;}
}

/* roulang page: article */
/* ============ 01. 设计变量 ============ */
:root{
  --ink:#0F1113;
  --ink-soft:#1B1F23;
  --paper:#F5F3EE;
  --white:#FFFFFF;
  --lime:#C6F24E;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --text-mute:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-btn:10px;
  --shadow-soft:0 18px 40px rgba(15,17,19,.07);
  --shadow-lift:0 26px 54px rgba(15,17,19,.14);
  --ease:cubic-bezier(.22,1,.36,1);
  --t:260ms;
  --w:1200px;
  --w-read:760px;
  --font-sans:'HarmonyOS Sans SC','Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono',ui-monospace,Menlo,Consolas,monospace;
  --fs-h1:clamp(1.9rem,4.4vw,3.2rem);
  --fs-h2:clamp(1.55rem,3vw,2.35rem);
}

/* ============ 02. reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t) var(--ease),background-color var(--t) var(--ease),border-color var(--t) var(--ease);}
button{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;color:var(--ink);letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.mono{font-family:var(--font-mono);}

/* ============ 03. 容器与通用 ============ */
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--paper);}
.section--white{background:var(--white);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:var(--fs-h2);margin-bottom:16px;}
.sec-head p{color:var(--text-mute);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--text-mute);margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}
.eyebrow--dark{color:rgba(255,255,255,.66);}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:12px 20px;border-radius:0 0 12px 0;z-index:300;}
.skip-link:focus{left:0;}

/* ============ 04. Dock 导航 ============ */
.site-head{position:fixed;top:16px;left:0;right:0;z-index:120;pointer-events:none;}
.dock-nav{
  pointer-events:auto;position:relative;z-index:2;
  width:min(1180px,calc(100% - 32px));margin:0 auto;
  display:flex;align-items:center;gap:16px;height:64px;padding:0 20px;
  border-radius:var(--r-pill);
  background:rgba(245,243,238,.78);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid rgba(15,17,19,.08);
  box-shadow:0 12px 30px rgba(15,17,19,.08);
  transition:height var(--t) var(--ease),box-shadow var(--t) var(--ease),background-color var(--t) var(--ease);
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  background:rgba(245,243,238,.92);
  box-shadow:0 18px 44px rgba(15,17,19,.16);
}
.dock-logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);white-space:nowrap;}
.dock-logo__mark{position:relative;width:14px;height:14px;border-radius:5px;background:var(--ink);flex:0 0 auto;}
.dock-logo__mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:8px;height:8px;border-radius:50%;background:var(--lime);border:2px solid rgba(245,243,238,.9);}
.dock-menu{display:flex;align-items:center;gap:2px;margin-left:auto;}
.dock-menu a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;
}
.dock-menu a:hover{background:rgba(15,17,19,.07);color:var(--ink);}
.dock-menu a.is-active{background:var(--ink);color:#fff;}
.dock-menu a.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);margin-left:8px;}
.dock-actions{display:flex;align-items:center;gap:10px;}
.dock-toggle{
  display:none;position:relative;width:44px;height:44px;margin-left:auto;
  border-radius:50%;border:1px solid rgba(15,17,19,.16);background:rgba(255,255,255,.55);cursor:pointer;
}
.dock-toggle span{position:absolute;left:50%;top:50%;width:18px;height:2px;border-radius:2px;background:var(--ink);transform:translate(-50%,-50%);transition:background var(--t) var(--ease);}
.dock-toggle span::before,
.dock-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t) var(--ease),top var(--t) var(--ease);}
.dock-toggle span::before{top:-6px;}
.dock-toggle span::after{top:6px;}
.dock-toggle[aria-expanded="true"] span{background:transparent;}
.dock-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.dock-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}
.dock-drawer{
  display:none;position:fixed;inset:0;z-index:1;pointer-events:auto;
  background:rgba(15,17,19,.97);
  flex-direction:column;justify-content:center;gap:26px;padding:100px 28px 44px;
}
.dock-drawer__list{display:flex;flex-direction:column;}
.dock-drawer__list a{display:block;padding:16px 4px;font-size:19px;font-weight:700;color:#fff;border-bottom:1px solid var(--line-dark);}
.dock-drawer__list a:hover,.dock-drawer__list a.is-active{color:var(--lime);}

/* ============ 05. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:700;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:background-color var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:var(--white);color:var(--ink);box-shadow:0 14px 30px rgba(198,242,78,.28);}
.btn--dark{background:var(--ink);color:#fff;}
.btn--dark:hover{background:var(--lime);color:var(--ink);}
.btn--outline{background:transparent;color:var(--ink);border-color:rgba(15,17,19,.22);border-radius:var(--r-btn);}
.btn--outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn--outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.3);border-radius:var(--r-btn);}
.btn--outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn--sm{height:40px;padding:0 20px;font-size:14.5px;}

/* ============ 06. 标签 / 徽章 ============ */
.chip{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.05em;color:var(--text-mute);
  background:rgba(255,255,255,.6);
}
.chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.chip--dark{border-color:var(--line-dark);color:rgba(255,255,255,.8);background:rgba(255,255,255,.07);}
.chip--dark::before{background:var(--lime);}

/* ============ 07. 文章首屏 ============ */
.article-hero{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  padding:158px 0 78px;
}
.article-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.34;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,17,19,.74) 0%,rgba(15,17,19,.92) 70%,rgba(15,17,19,.98) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.05em;color:rgba(255,255,255,.55);
}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:var(--lime);}
.crumb .sep{opacity:.5;}
.crumb .current{color:#fff;font-weight:600;}
.article-hero__tag{margin:26px 0 18px;}
.article-hero h1{
  font-size:var(--fs-h1);color:#fff;line-height:1.16;
  max-width:920px;margin-bottom:24px;letter-spacing:-.015em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-family:var(--font-mono);font-size:13px;color:rgba(255,255,255,.68);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--lime);flex:0 0 auto;}
.article-meta strong{color:#fff;font-weight:600;}

/* ============ 08. 正文阅读区 ============ */
.read-wrap{background:var(--paper);padding:80px 0 96px;}
.read-body{
  max-width:var(--w-read);margin:0 auto;
  font-size:17px;line-height:1.9;color:var(--text);
  overflow-wrap:break-word;
}
.read-body > *:first-child{margin-top:0;}
.read-body h2{
  font-size:clamp(1.35rem,2.4vw,1.72rem);margin:52px 0 18px;
  padding-left:16px;border-left:3px solid var(--lime);
}
.read-body h3{font-size:1.2rem;margin:36px 0 14px;}
.read-body h4{font-size:1.05rem;margin:28px 0 12px;}
.read-body p{margin:0 0 1.25em;}
.read-body ul{margin:0 0 1.4em;padding-left:1.4em;list-style:disc;}
.read-body ol{margin:0 0 1.4em;padding-left:1.5em;list-style:decimal;}
.read-body li{margin-bottom:.55em;}
.read-body blockquote{
  margin:28px 0;padding:20px 24px;background:rgba(255,255,255,.85);
  border-left:3px solid var(--orange);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--text-mute);font-size:16px;
}
.read-body img{border-radius:var(--r-img);margin:26px auto;box-shadow:var(--shadow-soft);}
.read-body a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:2px;text-underline-offset:3px;}
.read-body a:hover{color:var(--orange);text-decoration-color:var(--orange);}
.read-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.read-body th,.read-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;}
.read-body th{background:rgba(255,255,255,.85);font-weight:700;color:var(--ink);}
.read-body hr{border:0;border-top:1px solid var(--line);margin:40px 0;}
.read-body code{font-family:var(--font-mono);font-size:.92em;background:rgba(15,17,19,.06);padding:2px 6px;border-radius:6px;}

/* ============ 09. 空态 ============ */
.empty-note{
  max-width:var(--w-read);margin:0 auto;text-align:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:52px 36px;box-shadow:var(--shadow-soft);
}
.empty-note h2{font-size:1.5rem;margin:20px 0 14px;}
.empty-note p{color:var(--text-mute);font-size:15.5px;max-width:520px;margin:0 auto 26px;}

/* ============ 10. 卡片与网格 ============ */
.card-grid{margin-top:8px;}
.card-grid > .cell{display:flex;}
.card{
  display:flex;flex-direction:column;width:100%;height:100%;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--shadow-lift);}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-soft);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform 460ms var(--ease);}
.card:hover .card__media img{transform:scale(1.04);}
.card__body{display:flex;flex-direction:column;gap:12px;flex:1;padding:24px 24px 26px;}
.card__title{font-size:17.5px;font-weight:700;line-height:1.45;color:var(--ink);}
.card__text{font-size:14.5px;line-height:1.75;color:var(--text-mute);margin:0;}
.card__link{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:700;color:var(--ink);
}
.card__link i{transition:transform var(--t) var(--ease);font-size:12px;}
.card:hover .card__link{color:var(--ink);}
.card:hover .card__link i{transform:translateX(4px);}

/* ============ 11. FAQ ============ */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  padding:22px 46px 22px 0;font-size:17px;font-weight:700;color:var(--ink);
  transition:transform var(--t) var(--ease),color var(--t) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;right:12px;top:50%;width:2px;height:14px;
  background:var(--ink);transform:translateY(-50%);
  transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);
}
.faq-item summary::after{
  content:"";position:absolute;right:6px;top:50%;width:14px;height:2px;
  background:var(--ink);transform:translateY(-50%);
}
.faq-item summary:hover{color:var(--orange);}
.faq-item[open] summary{transform:translateX(4px);}
.faq-item[open] summary::before{transform:translateY(-50%) rotate(90deg);opacity:0;}
.faq-answer{padding:0 46px 24px 0;color:var(--text-mute);font-size:15.5px;line-height:1.85;}
.faq-answer p:last-child{margin-bottom:0;}

/* ============ 12. CTA ============ */
.cta-band{position:relative;background:var(--ink);color:#fff;padding:88px 0;overflow:hidden;}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:var(--fs-h2);margin-bottom:14px;max-width:620px;}
.cta-band p{color:rgba(255,255,255,.7);margin:0;max-width:560px;font-size:15.5px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
}

/* ============ 13. 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding:76px 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;}
.footer-brand__mark{position:relative;width:14px;height:14px;border-radius:5px;background:var(--lime);flex:0 0 auto;}
.footer-brand__mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:8px;height:8px;border-radius:50%;background:var(--orange);}
.brand-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.58);max-width:330px;margin:0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;font-size:14.5px;}
.footer-col ul li a:hover{color:var(--lime);}
.footer-col ul li.plain{color:rgba(255,255,255,.58);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 14. 进场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .65s var(--ease),transform .65s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;}
}

/* ============ 15. 响应式 ============ */
@media (max-width:1023px){
  .dock-menu,.dock-actions{display:none;}
  .dock-toggle{display:block;}
  .dock-drawer.is-open{display:flex;}
  .section{padding:76px 0;}
  .section--tight{padding:60px 0;}
  .article-hero{padding:132px 0 64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .dock-nav{height:56px;padding:0 14px;gap:10px;}
  .dock-logo{font-size:15.5px;}
  .section{padding:58px 0;}
  .sec-head{margin-bottom:30px;}
  .article-hero{padding:118px 0 52px;}
  .article-hero h1{margin-bottom:20px;}
  .read-wrap{padding:52px 0 64px;}
  .read-body{font-size:16px;line-height:1.85;}
  .read-body h2{margin:40px 0 16px;}
  .empty-note{padding:38px 22px;}
  .cta-band{padding:64px 0;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;gap:26px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:60px 0 26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:16px;padding-right:40px;}
  .faq-answer{padding-right:0;}
}
@media (max-width:560px){
  .article-meta{font-size:12px;gap:10px;}
  .crumb{font-size:11.5px;}
  .card__body{padding:20px 20px 22px;}
}

/* roulang page: category1 */
/* ===================================================================
   设计变量
   =================================================================== */
:root{
  --ink:#0F1113;
  --ink-2:#1B1F23;
  --paper:#F5F3EE;
  --lime:#C6F24E;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --muted:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);
  --white:#FFFFFF;

  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --fs-h1:clamp(2rem,4.4vw,3.4rem);
  --fs-h2:clamp(1.55rem,3vw,2.35rem);
  --fs-h3:clamp(1.1rem,1.6vw,1.35rem);
  --fs-body:16.5px;
  --fs-sm:14px;
  --fs-xs:12.5px;

  --sp-1:8px;  --sp-2:16px;  --sp-3:24px;
  --sp-4:40px; --sp-5:64px;  --sp-6:96px;

  --r-card:18px;
  --r-pill:999px;
  --r-sm:10px;
  --r-img:14px;

  --shadow-soft:0 18px 40px rgba(15,17,19,.07);
  --shadow-dock:0 14px 34px rgba(15,17,19,.12);

  --ease:cubic-bezier(.22,1,.36,1);
  --dur:260ms;

  --container:1200px;
}

/* ===================================================================
   Reset / 基础
   =================================================================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:var(--fs-body);
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;}
input,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ===================================================================
   浮动 Dock 导航
   =================================================================== */
.site-head{
  position:fixed;
  top:18px;
  left:0;
  right:0;
  z-index:900;
  padding:0 16px;
  pointer-events:none;
}
.dock-nav{
  pointer-events:auto;
  max-width:1100px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 14px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(245,243,238,.74);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border:1px solid rgba(15,17,19,.08);
  box-shadow:var(--shadow-dock);
  transition:height var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  background:rgba(245,243,238,.9);
  box-shadow:0 18px 42px rgba(15,17,19,.18);
}
.dock-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:16.5px;
  color:var(--ink);
  white-space:nowrap;
  letter-spacing:-.01em;
}
.dock-logo__mark{
  width:12px;height:12px;
  border-radius:4px;
  background:var(--ink);
  box-shadow:inset 0 0 0 3px var(--lime);
  flex:none;
}
.dock-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.dock-menu a{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:14.5px;
  color:#3C4147;
  position:relative;
  white-space:nowrap;
}
.dock-menu a:hover{color:var(--ink);background:rgba(15,17,19,.06);}
.dock-menu a.is-active{
  color:var(--ink);
  font-weight:700;
  background:rgba(198,242,78,.42);
}
.dock-menu a.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:3px;
  width:6px;height:6px;
  margin-left:-3px;
  border-radius:50%;
  background:var(--ink);
  opacity:.55;
}
.dock-actions{display:flex;align-items:center;gap:10px;}
.dock-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid rgba(15,17,19,.14);
  background:transparent;
  border-radius:var(--r-pill);
  position:relative;
  flex:none;
}
.dock-toggle span,
.dock-toggle span::before,
.dock-toggle span::after{
  position:absolute;left:50%;
  width:16px;height:2px;
  margin-left:-8px;
  background:var(--ink);
  border-radius:2px;
  content:"";
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.dock-toggle span{top:50%;margin-top:-1px;}
.dock-toggle span::before{top:-5px;left:0;margin-left:0;}
.dock-toggle span::after{top:5px;left:0;margin-left:0;}
.dock-toggle[aria-expanded="true"] span{background:transparent;}
.dock-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg);}
.dock-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg);}

/* ===================================================================
   按钮系统
   =================================================================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
  white-space:nowrap;
}
.btn--sm{padding:10px 18px;font-size:14px;}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:var(--white);color:var(--ink);transform:translateY(-2px);}
.btn--dark{background:var(--ink);color:#F5F3EE;}
.btn--dark:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);}
.btn--ghost{background:transparent;border-color:rgba(15,17,19,.22);color:var(--ink);}
.btn--ghost:hover{background:var(--ink);border-color:var(--ink);color:#F5F3EE;}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.34);color:#F5F3EE;}
.btn--ghost-light:hover{background:#F5F3EE;border-color:#F5F3EE;color:var(--ink);}
.btn--text{
  padding:6px 0;background:none;border:none;color:var(--ink);
  border-bottom:2px solid var(--lime);
  border-radius:0;font-weight:700;
}
.btn--text .arrow{transition:transform var(--dur) var(--ease);display:inline-block;}
.btn--text:hover .arrow{transform:translateX(4px);}
.btn--text:hover{color:var(--orange);border-color:var(--orange);}
.btn:disabled{opacity:.45;pointer-events:none;}

/* ===================================================================
   通用元素：标签 / 徽章 / 面包屑 / 标题组
   =================================================================== */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--white);
  font-size:var(--fs-xs);
  color:var(--muted);
  font-family:var(--font-mono);
  letter-spacing:.04em;
}
.tag--lime{background:rgba(198,242,78,.5);border-color:rgba(15,17,19,.1);color:var(--ink);}
.tag--dark{background:rgba(255,255,255,.06);border-color:var(--line-dark);color:#D7DBDF;}
.dot{width:6px;height:6px;border-radius:50%;background:var(--orange);flex:none;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:var(--fs-xs);
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:var(--lime);
}
.eyebrow--light{color:rgba(245,243,238,.66);}

.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:var(--fs-sm);
  color:var(--muted);
  margin-bottom:26px;
  flex-wrap:wrap;
}
.crumb a:hover{color:var(--lime);}
.crumb .sep{opacity:.5;}
.crumb .current{color:var(--ink);font-weight:700;}
.crumb--light{color:rgba(245,243,238,.6);}
.crumb--light .current{color:#F5F3EE;}

.sec{padding:var(--sp-6) 0;}
.sec--tight{padding:72px 0;}
.sec--paper{background:var(--paper);}
.sec--white{background:var(--white);}
.sec--dark{background:var(--ink);color:#E8E9EA;}
.sec--dark h2,.sec--dark h3{color:#F5F3EE;}

.sec-head{max-width:720px;margin-bottom:48px;}
.sec-head h2{font-size:var(--fs-h2);font-weight:800;margin-bottom:16px;}
.sec-head p{color:var(--muted);font-size:16px;}
.sec--dark .sec-head p{color:rgba(232,233,234,.72);}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ===================================================================
   Hero 频道 Banner
   =================================================================== */
.hero-channel{
  position:relative;
  background:
    linear-gradient(180deg,rgba(15,17,19,.82) 0%,rgba(15,17,19,.7) 55%,rgba(15,17,19,.9) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#F5F3EE;
  padding:170px 0 84px;
  overflow:hidden;
}
.hero-channel::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--lime),transparent);
  opacity:.35;
}
.hero-channel h1{
  color:#F5F3EE;
  font-size:var(--fs-h1);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  max-width:16em;
  margin-bottom:20px;
}
.hero-channel .lead{
  font-size:clamp(1rem,1.4vw,1.2rem);
  color:rgba(245,243,238,.8);
  max-width:38em;
  margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.trust-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-family:var(--font-mono);
  font-size:var(--fs-xs);
  letter-spacing:.08em;
  color:rgba(245,243,238,.62);
}
.trust-line .pip{width:4px;height:4px;border-radius:50%;background:var(--lime);opacity:.8;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  margin-top:56px;
  background:var(--line-dark);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  overflow:hidden;
}
.hero-stats div{
  background:rgba(27,31,35,.72);
  padding:22px 24px;
}
.hero-stats .num{
  font-family:var(--font-mono);
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:700;
  color:var(--lime);
  display:block;
  line-height:1.2;
}
.hero-stats .cap{
  font-size:var(--fs-sm);
  color:rgba(245,243,238,.66);
}

/* ===================================================================
   关注点卡片
   =================================================================== */
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.point-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow-soft);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.point-card:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:0 24px 50px rgba(15,17,19,.1);}
.point-card__idx{
  font-family:var(--font-mono);
  font-size:var(--fs-xs);
  letter-spacing:.16em;
  color:var(--orange);
  display:block;
  margin-bottom:14px;
}
.point-card h3{font-size:var(--fs-h3);margin-bottom:12px;}
.point-card p{color:var(--muted);font-size:15px;}
.point-card__media{
  margin-top:22px;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
}
.point-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.point-card:hover .point-card__media img{transform:scale(1.04);}

/* ===================================================================
   适用场景 —— 左右交错图文
   =================================================================== */
.scene-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px solid var(--line);
}
.scene-row:last-child{border-bottom:none;}
.scene-row:nth-child(even) .scene-row__text{order:2;}
.scene-row__text h3{font-size:var(--fs-h3);margin-bottom:14px;}
.scene-row__text p{color:var(--muted);margin-bottom:18px;}
.scene-row__media{
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:4/3;
  border:1px solid var(--line);
}
.scene-row__media img{width:100%;height:100%;object-fit:cover;}
.scene-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--text);
  padding:6px 0;
}
.scene-list li::before{
  content:"";
  margin-top:9px;
  width:6px;height:6px;border-radius:50%;
  background:var(--lime);
  flex:none;
}

/* ===================================================================
   步骤流程
   =================================================================== */
.step-list{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line-dark);
}
.step-item{
  position:relative;
  padding:36px 24px 36px 0;
  border-right:1px solid var(--line-dark);
}
.step-item:last-child{border-right:none;padding-right:0;}
.step-item__num{
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,3vw,2.2rem);
  font-weight:700;
  color:var(--lime);
  display:block;
  line-height:1;
  margin-bottom:16px;
}
.step-item h3{font-size:1.1rem;margin-bottom:10px;color:#F5F3EE;}
.step-item p{font-size:14.5px;color:rgba(232,233,234,.7);}

/* ===================================================================
   列表条目区（分类页主体）
   =================================================================== */
.entry-list{border-top:1px solid var(--line);}
.entry-row{
  position:relative;
  display:grid;
  grid-template-columns:150px 1fr auto;
  gap:26px;
  align-items:center;
  padding:26px 20px 26px 22px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease),padding-left var(--dur) var(--ease);
}
.entry-row::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--lime);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform var(--dur) var(--ease);
}
.entry-row:hover{background:var(--white);padding-left:30px;}
.entry-row:hover::before{transform:scaleY(1);}
.entry-row__media{
  width:150px;
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  flex:none;
}
.entry-row__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.entry-row:hover .entry-row__media img{transform:scale(1.05);}
.entry-row__body h3{font-size:1.16rem;margin-bottom:8px;}
.entry-row__body p{color:var(--muted);font-size:14.5px;max-width:62ch;}
.entry-row__tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.entry-row__go{
  font-family:var(--font-mono);
  font-size:20px;
  color:var(--muted);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.entry-row:hover .entry-row__go{transform:translateX(5px);color:var(--orange);}

/* ===================================================================
   FAQ
   =================================================================== */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:56px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:22px 40px 22px 0;
  position:relative;
  font-weight:700;
  font-size:16.5px;
  color:var(--ink);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:4px;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:22px;
  color:var(--orange);
  transition:transform var(--dur) var(--ease);
}
.faq-item[open] summary{transform:translateX(4px);color:var(--ink);}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item p{
  padding:0 40px 24px 0;
  color:var(--muted);
  line-height:1.8;
  font-size:15px;
}

/* ===================================================================
   相关栏目入口
   =================================================================== */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:block;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rel-card:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--shadow-soft);}
.rel-card h3{font-size:1.15rem;margin-bottom:10px;}
.rel-card p{font-size:14.5px;color:var(--muted);margin-bottom:18px;}

/* ===================================================================
   CTA 整幅
   =================================================================== */
.cta-open{
  background:var(--ink);
  color:#F5F3EE;
  padding:var(--sp-6) 0;
  position:relative;
  overflow:hidden;
}
.cta-open::before{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:360px;height:360px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.18),transparent 68%);
}
.cta-open__grid{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.cta-open h2{color:#F5F3EE;font-size:var(--fs-h2);font-weight:800;margin-bottom:16px;}
.cta-open p{color:rgba(232,233,234,.74);}
.cta-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  background:var(--ink-2);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:26px;
}
.cta-form .field{display:flex;flex-direction:column;gap:8px;}
.cta-form label{font-size:var(--fs-xs);font-family:var(--font-mono);letter-spacing:.08em;color:rgba(232,233,234,.6);}
.cta-form input,
.cta-form select{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-dark);
  border-radius:var(--r-sm);
  padding:12px 14px;
  color:#F5F3EE;
  font-size:15px;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.cta-form input::placeholder{color:rgba(232,233,234,.36);}
.cta-form input:focus,
.cta-form select:focus{
  outline:none;
  border-color:var(--lime);
  background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(198,242,78,.18);
}
.cta-form .field--full{grid-column:1 / -1;}
.form-note{font-size:var(--fs-xs);color:rgba(232,233,234,.5);grid-column:1 / -1;}

/* ===================================================================
   页脚
   =================================================================== */
.site-footer{
  background:var(--ink);
  color:rgba(232,233,234,.72);
  padding:72px 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid var(--line-dark);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  color:#F5F3EE;
  margin-bottom:16px;
}
.footer-brand__mark{
  width:12px;height:12px;border-radius:4px;
  background:#F5F3EE;
  box-shadow:inset 0 0 0 3px var(--lime);
}
.brand-desc{font-size:14px;line-height:1.85;color:rgba(232,233,234,.6);max-width:34ch;}
.footer-col h4{
  color:#F5F3EE;
  font-size:14px;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col ul li a{color:rgba(232,233,234,.68);}
.footer-col ul li a:hover{color:var(--lime);}
.footer-col ul li.plain{color:rgba(232,233,234,.55);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding-top:24px;
  font-size:13px;
  color:rgba(232,233,234,.5);
  flex-wrap:wrap;
}

/* ===================================================================
   进场动画
   =================================================================== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 600ms var(--ease),transform 600ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ===================================================================
   响应式
   =================================================================== */
@media (max-width:1024px){
  .dock-menu{gap:0;}
  .dock-menu a{padding:8px 11px;font-size:13.5px;}
  .dock-logo{font-size:15px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-item{padding:30px 20px 30px 0;}
  .step-item:nth-child(2n){border-right:none;padding-right:0;}
  .cta-open__grid{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:860px){
  .dock-menu,
  .dock-actions{display:none;}
  .dock-toggle{display:block;margin-left:auto;}
  .dock-nav{height:56px;padding:0 10px 0 16px;}
  .site-head{top:12px;}
  .dock-nav.is-open + .dock-menu{display:flex;}
  .point-grid{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .scene-row{grid-template-columns:1fr;gap:24px;}
  .scene-row:nth-child(even) .scene-row__text{order:0;}
  .hero-stats{grid-template-columns:1fr;}
  .entry-row{grid-template-columns:110px 1fr;gap:18px;}
  .entry-row__media{width:110px;}
  .entry-row__go{display:none;}
  .cta-form{grid-template-columns:1fr;}
}
@media (max-width:560px){
  :root{--sp-6:64px;--sp-5:44px;}
  .container{padding:0 18px;}
  .hero-channel{padding:132px 0 60px;}
  .hero-channel h1{font-size:clamp(1.7rem,7vw,2.2rem);}
  .dock-logo{font-size:14px;}
  .step-list{grid-template-columns:1fr;}
  .step-item{border-right:none;padding-right:0;border-bottom:1px solid var(--line-dark);}
  .step-item:last-child{border-bottom:none;}
  .entry-row{grid-template-columns:1fr;gap:14px;padding:22px 16px 22px 18px;}
  .entry-row__media{width:100%;aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sec-head{margin-bottom:32px;}
}

/* 移动抽屉 */
.dock-drawer{
  position:fixed;
  inset:0;
  background:rgba(15,17,19,.97);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  z-index:950;
  display:flex;
  flex-direction:column;
  padding:96px 24px 32px;
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.dock-drawer.is-open{opacity:1;transform:none;visibility:visible;}
.dock-drawer a{
  display:block;
  padding:18px 4px;
  border-bottom:1px solid var(--line-dark);
  color:#F5F3EE;
  font-size:18px;
  font-weight:600;
}
.dock-drawer a.is-active{color:var(--lime);}
.dock-drawer .btn{margin-top:28px;width:100%;}
.drawer-close{
  position:absolute;
  top:22px;right:22px;
  width:42px;height:42px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-dark);
  background:transparent;
  color:#F5F3EE;
  font-size:20px;
  line-height:1;
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --ink:#0F1113;
  --ink-2:#1B1F23;
  --paper:#F5F3EE;
  --lime:#C6F24E;
  --lime-2:#D8FF75;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --muted:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);
  --white:#FFFFFF;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --shadow:0 18px 40px rgba(15,17,19,.07);
  --shadow-lg:0 24px 56px rgba(15,17,19,.13);
  --ease:cubic-bezier(.22,1,.36,1);
  --dur:260ms;
  --container:1200px;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}

/* 覆盖 Foundation 默认链接与按钮风格 */
a, .site-head a, .site-footer a{color:inherit;}
a:hover, a:focus{color:inherit;}

/* ============ 通用容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.mono{font-family:var(--font-mono);letter-spacing:.04em;}

/* ============ Dock 导航 ============ */
.site-head{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 16px;
  transition:top var(--dur) var(--ease);
}
.dock-nav{
  display:flex;
  align-items:center;
  gap:22px;
  width:100%;
  max-width:1140px;
  height:64px;
  padding:0 14px 0 24px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:rgba(245,243,238,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
  transition:height var(--dur) var(--ease), background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  background:rgba(245,243,238,.94);
  box-shadow:var(--shadow-lg);
  border-color:#DCD7CB;
}
.site-head.is-dark .dock-nav{
  background:rgba(27,31,35,.72);
  border-color:var(--line-dark);
  box-shadow:0 18px 40px rgba(0,0,0,.28);
}
.site-head.is-dark .dock-menu a,
.site-head.is-dark .dock-logo{color:#F5F3EE;}
.site-head.is-dark .dock-menu a:hover{color:var(--lime);}
.site-head.is-dark .dock-toggle span,
.site-head.is-dark .dock-toggle span::before,
.site-head.is-dark .dock-toggle span::after{background:#F5F3EE;}

.dock-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
  color:var(--ink);
  transition:color var(--dur) var(--ease);
}
.dock-logo__mark{
  width:14px;
  height:14px;
  border-radius:4px;
  background:var(--lime);
  box-shadow:0 0 0 4px rgba(198,242,78,.22);
  flex:0 0 auto;
}
.dock-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.dock-menu li{position:relative;}
.dock-menu a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:var(--radius-btn);
  transition:color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.dock-menu a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  background:var(--lime);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width var(--dur) var(--ease);
}
.dock-menu a:hover{color:var(--ink);background:rgba(15,17,19,.05);}
.dock-menu a:hover::after{width:16px;}
.dock-menu a.is-active{color:var(--ink);font-weight:700;}
.dock-menu a.is-active::after{width:20px;}
.dock-actions{display:flex;align-items:center;gap:12px;}
.dock-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:50%;
  border:1px solid transparent;
  position:relative;
  flex:0 0 auto;
}
.dock-toggle span,
.dock-toggle span::before,
.dock-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform var(--dur) var(--ease), opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}
.dock-toggle span{top:21px;}
.dock-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.dock-toggle span::after{content:"";top:6px;left:0;transform:none;}
.dock-toggle[aria-expanded="true"] span{background:transparent;}
.dock-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;}
.dock-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:700;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn--sm{padding:10px 20px;font-size:14px;}
.btn--dark{background:var(--ink);color:#F5F3EE;}
.btn--dark:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:var(--lime-2);transform:translateY(-2px);box-shadow:0 12px 28px rgba(198,242,78,.28);}
.btn--ghost{border-color:#CFC9BB;color:var(--ink);background:transparent;}
.btn--ghost:hover{background:var(--ink);color:#F5F3EE;border-color:var(--ink);transform:translateY(-2px);}
.btn--ghost-light{border-color:var(--line-dark);color:#F5F3EE;background:transparent;}
.btn--ghost-light:hover{background:rgba(245,243,238,.12);border-color:var(--lime);color:var(--lime);}
.btn--link{padding:6px 0;color:var(--ink);font-weight:600;}
.btn--link i{transition:transform var(--dur) var(--ease);}
.btn--link:hover i{transform:translateX(4px);}
.btn--link:hover{color:var(--orange);}

/* ============ 首屏 Banner ============ */
.hero-page{
  position:relative;
  background:var(--ink);
  color:#F5F3EE;
  padding:150px 0 84px;
  overflow:hidden;
}
.hero-page__bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.34;
}
.hero-page::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(15,17,19,.92) 12%,rgba(15,17,19,.62) 58%,rgba(15,17,19,.86) 100%);
}
.hero-page .container{position:relative;z-index:2;}

.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(245,243,238,.62);
  margin-bottom:26px;
  font-family:var(--font-mono);
  letter-spacing:.03em;
}
.crumb a{color:rgba(245,243,238,.72);transition:color var(--dur) var(--ease);}
.crumb a:hover{color:var(--lime);}
.crumb span.sep{opacity:.5;}
.crumb strong{color:#F5F3EE;font-weight:600;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--lime);
  font-family:var(--font-mono);
  text-transform:uppercase;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--orange);
}
.hero-page h1{
  font-size:clamp(2.1rem,4.6vw,3.5rem);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  max-width:900px;
  color:#F5F3EE;
}
.hero-page__lead{
  margin-top:20px;
  max-width:660px;
  font-size:17px;
  line-height:1.8;
  color:rgba(245,243,238,.76);
}
.hero-page__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px 36px;
  margin-top:46px;
  padding-top:26px;
  border-top:1px solid var(--line-dark);
}
.hero-stats li{
  display:flex;
  align-items:baseline;
  gap:8px;
  font-size:13px;
  color:rgba(245,243,238,.6);
}
.hero-stats b{
  font-family:var(--font-mono);
  font-size:19px;
  font-weight:700;
  color:var(--lime);
  letter-spacing:.02em;
}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink);color:#F5F3EE;}
.section--dark h2{color:#F5F3EE;}
.section--dark .section-head p{color:rgba(245,243,238,.7);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{
  font-size:clamp(1.6rem,2.7vw,2.2rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.015em;
  color:var(--ink);
}
.section-head p{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--muted);
}
.section-label{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--orange);
  margin-bottom:14px;
  font-weight:600;
}

/* ============ 概览卡 ============ */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.overview-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 28px;
  box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  position:relative;
  overflow:hidden;
}
.overview-card::before{
  content:"";
  position:absolute;
  left:0;
  top:26px;
  bottom:26px;
  width:3px;
  background:var(--lime);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.overview-card:hover{transform:translateY(-6px);border-color:#CFC9BB;box-shadow:var(--shadow-lg);}
.overview-card:hover::before{transform:scaleY(1);}
.overview-card i{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--ink);
  color:var(--lime);
  font-size:17px;
  margin-bottom:20px;
}
.overview-card h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:10px;
}
.overview-card p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ 双列错落卡片 ============ */
.stagger{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
  align-items:start;
}
.stagger__col{display:flex;flex-direction:column;gap:28px;}
.stagger__col--shift{padding-top:64px;}

.play-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.play-card:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--shadow-lg);}
.play-card__media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--ink-2);
}
.play-card__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 380ms var(--ease);
}
.play-card:hover .play-card__media img{transform:scale(1.04);}
.play-card__media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,17,19,0) 40%,rgba(15,17,19,.5) 100%);
}
.play-card__tag{
  position:absolute;
  left:16px;
  top:16px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border-radius:var(--radius-btn);
  background:rgba(15,17,19,.66);
  border:1px solid var(--line-dark);
  color:#F5F3EE;
  font-size:12px;
  font-weight:600;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.play-card__tag::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--orange);
}
.play-card__body{padding:26px 26px 24px;}
.play-card__body h3{
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  color:var(--ink);
  margin-bottom:12px;
}
.play-card__body p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.play-card__meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.03em;
  color:#8A8F97;
}
.play-card__meta span b{color:var(--ink);font-weight:600;}

/* ============ 步骤流程 ============ */
.step-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line-dark);
}
.step-item{
  position:relative;
  padding:34px 26px 8px 0;
}
.step-item + .step-item{padding-left:26px;}
.step-item + .step-item::before{
  content:"";
  position:absolute;
  left:0;
  top:34px;
  bottom:8px;
  width:1px;
  background:var(--line-dark);
}
.step-item__num{
  font-family:var(--font-mono);
  font-size:34px;
  font-weight:700;
  color:var(--lime);
  letter-spacing:.02em;
  line-height:1;
  display:block;
  margin-bottom:18px;
}
.step-item h3{
  font-size:17px;
  font-weight:700;
  color:#F5F3EE;
  margin-bottom:10px;
}
.step-item p{
  font-size:14.5px;
  line-height:1.8;
  color:rgba(245,243,238,.66);
}

/* ============ 适用场景 ============ */
.scene-wrap{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:56px;
  align-items:start;
}
.scene-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 15px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:var(--white);
  font-size:13.5px;
  color:var(--text);
  transition:border-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.tag::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--orange);
}
.tag:hover{border-color:var(--ink);transform:translateY(-2px);}
.scene-list{
  display:flex;
  flex-direction:column;
  gap:0;
  border-top:1px solid var(--line);
}
.scene-row{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:20px;
  padding:24px 18px 24px 0;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:padding-left var(--dur) var(--ease), background var(--dur) var(--ease);
}
.scene-row::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:3px;
  background:var(--lime);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.scene-row:hover{padding-left:18px;background:rgba(255,255,255,.66);}
.scene-row:hover::before{transform:scaleY(1);}
.scene-row__num{
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:600;
  color:var(--orange);
  padding-top:3px;
}
.scene-row h3{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:8px;
}
.scene-row p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--muted);
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  gap:56px;
  align-items:start;
}
.faq-list{
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item__q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  padding:22px 0;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  transition:transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.faq-item__q:hover{color:var(--orange);}
.faq-item.is-open .faq-item__q{transform:translateX(4px);}
.faq-item__icon{
  position:relative;
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  transition:transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.faq-item__icon::before,
.faq-item__icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--ink);
  transform:translate(-50%,-50%);
  transition:background var(--dur) var(--ease);
}
.faq-item__icon::before{width:11px;height:1.6px;}
.faq-item__icon::after{width:1.6px;height:11px;}
.faq-item.is-open .faq-item__icon{transform:rotate(45deg);background:var(--lime);border-color:var(--lime);}
.faq-item.is-open .faq-item__icon::before,
.faq-item.is-open .faq-item__icon::after{background:var(--ink);}
.faq-item__a{
  max-height:0;
  overflow:hidden;
  transition:max-height 320ms var(--ease);
}
.faq-item__a p{
  padding:0 0 24px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  max-width:640px;
}

/* ============ CTA ============ */
.cta-open{
  background:var(--ink);
  color:#F5F3EE;
  padding:84px 0;
  position:relative;
  overflow:hidden;
}
.cta-open::before{
  content:"";
  position:absolute;
  right:-140px;
  top:-140px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16) 0%,rgba(198,242,78,0) 68%);
}
.cta-open__inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
  gap:48px;
  align-items:center;
}
.cta-open h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.015em;
  color:#F5F3EE;
}
.cta-open p{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:rgba(245,243,238,.72);
  max-width:620px;
}
.cta-open__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:flex-end;
}
.cta-note{
  margin-top:18px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(245,243,238,.5);
  text-align:right;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(245,243,238,.72);
  padding:72px 0 28px;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:800;
  color:#F5F3EE;
  margin-bottom:16px;
}
.footer-brand__mark{
  width:13px;
  height:13px;
  border-radius:4px;
  background:var(--lime);
  box-shadow:0 0 0 4px rgba(198,242,78,.2);
}
.brand-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(245,243,238,.62);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#F5F3EE;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul li a,
.footer-col ul li.plain{
  font-size:14px;
  color:rgba(245,243,238,.64);
  transition:color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.footer-col ul li a:hover{color:var(--lime);padding-left:4px;}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(245,243,238,.5);
}

/* ============ 进场动画 ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 560ms var(--ease), transform 560ms var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .dock-menu a{padding:8px 10px;font-size:14px;}
  .dock-nav{gap:14px;padding:0 12px 0 18px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .step-list{grid-template-columns:repeat(2,1fr);}
  .step-item{padding:30px 20px 6px 0;}
  .step-item + .step-item{padding-left:20px;}
  .step-item:nth-child(3){padding-left:0;}
  .step-item:nth-child(3)::before{display:none;}
  .scene-wrap,.faq-wrap{grid-template-columns:1fr;gap:36px;}
  .cta-open__inner{grid-template-columns:1fr;gap:32px;}
  .cta-open__actions{justify-content:flex-start;}
  .cta-note{text-align:left;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .stagger__col--shift{padding-top:0;}
}

@media (max-width:880px){
  .dock-menu{
    position:fixed;
    top:92px;
    left:16px;
    right:16px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px;
    border-radius:22px;
    background:rgba(15,17,19,.96);
    border:1px solid var(--line-dark);
    box-shadow:var(--shadow-lg);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
  }
  .dock-menu.is-open{display:flex;}
  .dock-menu a{color:#F5F3EE;padding:12px 14px;font-size:15.5px;}
  .dock-menu a::after{display:none;}
  .dock-menu a.is-active{background:rgba(198,242,78,.14);color:var(--lime);}
  .dock-menu a:hover{background:rgba(245,243,238,.08);color:var(--lime);}
  .dock-actions .btn{display:none;}
  .dock-toggle{display:block;}
  .dock-nav{justify-content:space-between;}
  .dock-menu{margin-left:0;}
}

@media (max-width:768px){
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .hero-page{padding:132px 0 64px;}
  .section-head{margin-bottom:34px;}
  .grid-3{grid-template-columns:1fr;}
  .stagger{grid-template-columns:1fr;gap:22px;}
  .stagger__col{gap:22px;}
  .step-list{grid-template-columns:1fr;}
  .step-item{padding:26px 0 10px;}
  .step-item + .step-item{padding-left:0;}
  .step-item + .step-item::before{left:0;right:0;top:0;bottom:auto;width:100%;height:1px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{gap:12px 24px;}
}

@media (max-width:560px){
  .container{padding:0 18px;}
  body{font-size:15.5px;}
  .dock-logo{font-size:15.5px;}
  .hero-page h1{font-size:1.85rem;}
  .hero-page__lead{font-size:15.5px;}
  .btn{padding:13px 22px;font-size:15px;width:100%;}
  .hero-page__actions{flex-direction:column;align-items:stretch;}
  .cta-open__actions{flex-direction:column;align-items:stretch;}
  .play-card__body{padding:22px 20px;}
  .footer-bottom{flex-direction:column;}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
/* ============ 01 设计变量 ============ */
:root{
  --ink:#0F1113;
  --ink-2:#1B1F23;
  --paper:#F5F3EE;
  --paper-2:#FFFFFF;
  --lime:#C6F24E;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --muted:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);
  --radius-card:18px;
  --radius-img:14px;
  --radius-sm:10px;
  --shadow-soft:0 18px 40px rgba(15,17,19,.07);
  --shadow-dock:0 14px 34px rgba(15,17,19,.12);
  --ease:cubic-bezier(.22,1,.36,1);
  --dur:260ms;
  --container:1200px;
  --gutter-d:32px;
  --gutter-t:24px;
  --gutter-m:16px;
  --font-sans:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
/* ============ 02 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--orange)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-sans);color:var(--ink);line-height:1.2}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em}
/* ============ 03 容器与通用排版 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter-d)}
.section{padding:110px 0}
.section--tight{padding:80px 0}
.section--dark{background:var(--ink);color:rgba(245,243,238,.78)}
.section--dark h2,.section--dark h3{color:var(--paper)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--muted);margin-bottom:14px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange)}
.section--dark .eyebrow{color:rgba(245,243,238,.6)}
.h2{font-size:clamp(1.7rem,3.2vw,2.6rem);font-weight:700;letter-spacing:-.01em}
.h3{font-size:1.3rem;font-weight:600}
.lead{color:var(--muted);max-width:680px;margin-top:16px}
.section-head{margin-bottom:52px}
.section-head--center{text-align:center;margin-left:auto;margin-right:auto}
.section-head--center .lead{margin-left:auto;margin-right:auto}
.section-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:32px}
/* ============ 04 按钮系统 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn i{transition:transform var(--dur) var(--ease)}
.btn--solid{background:var(--ink);color:var(--paper)}
.btn--solid:hover{background:var(--lime);color:var(--ink)}
.btn--lime{background:var(--lime);color:var(--ink)}
.btn--lime:hover{background:#DAF97F;color:var(--ink)}
.btn--ghost{border:1px solid rgba(245,243,238,.35);color:var(--paper)}
.btn--ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn--outline{border:1px solid var(--ink);color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:var(--paper)}
.btn--sm{height:42px;padding:0 20px;font-size:14px}
.btn--text{padding:0;height:auto;color:var(--ink);border-radius:0}
.btn--text:hover{color:var(--orange);gap:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
/* ============ 05 顶部 Dock 导航 ============ */
.site-head{
  position:fixed;top:18px;left:0;right:0;z-index:90;
  display:flex;justify-content:center;padding:0 20px;pointer-events:none;
}
.dock-nav{
  pointer-events:auto;position:relative;
  width:100%;max-width:var(--container);height:64px;
  display:flex;align-items:center;gap:26px;
  padding:0 22px;border-radius:999px;
  background:rgba(245,243,238,.8);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid rgba(15,17,19,.08);
  box-shadow:var(--shadow-dock);
  transition:height var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  background:rgba(245,243,238,.92);
  box-shadow:0 18px 42px rgba(15,17,19,.18);
}
.dock-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  flex-shrink:0;
}
.dock-logo:hover{color:var(--ink)}
.dock-logo__mark{
  width:14px;height:14px;border-radius:4px;
  background:var(--lime);border:1px solid var(--ink);flex-shrink:0;
}
.dock-menu{
  display:flex;align-items:center;gap:4px;margin-left:auto;
}
.dock-menu a{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--muted);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.dock-menu a:hover{color:var(--ink);background:rgba(15,17,19,.05)}
.dock-menu a.is-active{color:var(--ink);font-weight:700}
.dock-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 3px rgba(198,242,78,.3);
}
.dock-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:999px;
  border:1px solid rgba(15,17,19,.12);align-items:center;justify-content:center;
}
.dock-toggle span,.dock-toggle span::before,.dock-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform var(--dur) var(--ease);
}
.dock-toggle span{position:relative}
.dock-toggle span::before{content:"";position:absolute;top:-6px;left:0}
.dock-toggle span::after{content:"";position:absolute;top:6px;left:0}
.dock-drawer{
  position:fixed;inset:0;z-index:110;background:rgba(15,17,19,.97);
  display:flex;flex-direction:column;gap:6px;
  padding:104px 28px 40px;
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.dock-drawer.is-open{opacity:1;visibility:visible}
.dock-drawer a{
  color:rgba(245,243,238,.82);font-size:19px;font-weight:600;
  padding:16px 0;border-bottom:1px solid var(--line-dark);
}
.dock-drawer a.is-active{color:var(--lime)}
.dock-drawer .btn{margin-top:26px;justify-content:center}
/* ============ 06 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:rgba(245,243,238,.55);margin-bottom:22px;
}
.crumb a{color:rgba(245,243,238,.7)}
.crumb a:hover{color:var(--lime)}
.crumb span.sep{opacity:.5}
.crumb strong{color:var(--paper);font-weight:600}
/* ============ 07 Hero ============ */
.hero-channel{
  position:relative;overflow:hidden;
  background:var(--ink);
  padding:172px 0 96px;
}
.hero-channel__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-channel__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,17,19,.78) 0%,rgba(15,17,19,.9) 70%,rgba(15,17,19,.98) 100%);
}
.hero-channel .container{position:relative;z-index:2}
.hero-channel h1{
  color:var(--paper);
  font-size:clamp(2.2rem,5vw,3.7rem);
  font-weight:800;line-height:1.1;letter-spacing:-.02em;
  max-width:880px;
}
.hero-channel h1 em{font-style:normal;color:var(--lime)}
.hero-sub{
  color:rgba(245,243,238,.72);font-size:1.06rem;max-width:640px;margin-top:22px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-tags{
  display:flex;flex-wrap:wrap;gap:22px;margin-top:40px;
  padding-top:26px;border-top:1px solid var(--line-dark);
}
.hero-tags li{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:rgba(245,243,238,.62);
}
.hero-tags li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}
/* ============ 08 准备清单卡 ============ */
.grid-cards{display:grid;gap:24px}
.grid-cards--3{grid-template-columns:repeat(3,1fr)}
.grid-cards--4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 28px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--shadow-soft)}
.card__num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--orange);display:block;margin-bottom:18px;
}
.card__icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--lime);font-size:17px;margin-bottom:20px;
}
.card h3{font-size:1.16rem;font-weight:700;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
/* ============ 09 步骤流程 ============ */
.step-list{display:grid;grid-template-columns:repeat(4,1fr);position:relative}
.step-item{
  position:relative;padding:0 26px 0 0;
}
.step-item::after{
  content:"";position:absolute;left:0;top:34px;width:100%;height:1px;background:var(--line);
  z-index:0;
}
.step-item:last-child::after{display:none}
.step-item__num{
  position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;
  width:68px;height:68px;border-radius:50%;
  background:var(--ink);color:var(--lime);
  font-family:var(--font-mono);font-size:20px;font-weight:700;
  margin-bottom:24px;
}
.step-item h3{font-size:1.12rem;margin-bottom:10px}
.step-item p{color:var(--muted);font-size:14.5px;max-width:250px}
.step-item__meta{
  display:inline-block;margin-top:14px;padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.08em;color:var(--muted);
}
/* ============ 10 图文横排卡 ============ */
.media-list{display:flex;flex-direction:column;gap:20px}
.media-card{
  display:grid;grid-template-columns:280px 1fr auto;gap:30px;align-items:center;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;position:relative;overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.media-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--lime);transform:translateX(-4px);opacity:0;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.media-card:hover{transform:translateY(-4px);border-color:var(--lime);box-shadow:var(--shadow-soft)}
.media-card:hover::before{transform:translateX(0);opacity:1}
.media-card__pic{
  width:100%;aspect-ratio:16/10;border-radius:var(--radius-img);overflow:hidden;background:var(--ink-2);
}
.media-card__pic img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.media-card:hover .media-card__pic img{transform:scale(1.04)}
.media-card__body h3{font-size:1.18rem;font-weight:700;margin-bottom:9px}
.media-card__body p{color:var(--muted);font-size:14.5px;max-width:640px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--orange)}
.tag--solid{background:var(--ink);border-color:var(--ink);color:var(--lime)}
.tag--solid::before{background:var(--lime)}
.media-card__go{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;
}
.media-card__go i{transition:transform var(--dur) var(--ease)}
.media-card:hover .media-card__go i{transform:translateX(4px)}
/* ============ 11 数据条 ============ */
.proof-block{
  display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center;
}
.proof-figure{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;
  background:var(--line-dark);border:1px solid var(--line-dark);border-radius:var(--radius-card);overflow:hidden;
}
.proof-figure__item{background:var(--ink);padding:34px 28px}
.proof-figure__item strong{
  display:block;font-family:var(--font-mono);font-size:2.1rem;font-weight:700;
  color:var(--lime);letter-spacing:-.02em;line-height:1;
}
.proof-figure__item span{display:block;margin-top:12px;font-size:13.5px;color:rgba(245,243,238,.6)}
.proof-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line-dark);
  font-size:15px;color:rgba(245,243,238,.75);
}
.proof-list li:last-child{border-bottom:0}
.proof-list i{color:var(--lime);margin-top:5px}
/* ============ 12 FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:360px 1fr;gap:60px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 0;text-align:left;font-size:1.06rem;font-weight:600;color:var(--ink);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item.is-open .faq-q{transform:translateX(4px);color:var(--ink)}
.faq-plus{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform var(--dur) var(--ease);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.faq-plus::before{left:0;top:9px;width:20px;height:2px}
.faq-plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-item.is-open .faq-plus::before,.faq-item.is-open .faq-plus::after{background:var(--orange)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a p{color:var(--muted);font-size:14.8px;line-height:1.85;padding:0 40px 24px 0}
/* ============ 13 CTA ============ */
.cta-open{
  position:relative;background:var(--ink);overflow:hidden;
  border-radius:24px;padding:66px 64px;
  display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center;
}
.cta-open::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.22),transparent 68%);
}
.cta-open h2{color:var(--paper);font-size:clamp(1.6rem,2.6vw,2.2rem)}
.cta-open p{color:rgba(245,243,238,.68);margin-top:16px;font-size:15px;max-width:520px}
.cta-form{display:flex;gap:12px;position:relative;z-index:2;flex-wrap:wrap}
.cta-form input{
  flex:1 1 220px;height:50px;padding:0 20px;border-radius:999px;
  background:var(--ink-2);border:1px solid var(--line-dark);
  color:var(--paper);font-size:14.5px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cta-form input::placeholder{color:rgba(245,243,238,.4)}
.cta-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.18)}
.cta-note{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:rgba(245,243,238,.45);margin-top:16px}
/* ============ 14 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(245,243,238,.66);padding:88px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:44px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:800;color:var(--paper);margin-bottom:18px;
}
.footer-brand__mark{width:14px;height:14px;border-radius:4px;background:var(--lime);border:1px solid rgba(245,243,238,.5)}
.brand-desc{font-size:14px;line-height:1.8;color:rgba(245,243,238,.55);max-width:340px}
.footer-col h4{color:var(--paper);font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:20px}
.footer-col ul li{margin-bottom:12px;font-size:14px}
.footer-col ul li a{color:rgba(245,243,238,.66)}
.footer-col ul li a:hover{color:var(--lime)}
.footer-col ul li.plain{color:rgba(245,243,238,.55)}
.footer-bottom{
  margin-top:60px;padding-top:24px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(245,243,238,.45);
}
/* ============ 15 进场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
/* ============ 16 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 var(--gutter-t)}
  .section{padding:84px 0}
  .dock-menu{display:none}
  .dock-toggle{display:inline-flex}
  .dock-actions .btn{display:none}
  .grid-cards--4{grid-template-columns:repeat(2,1fr)}
  .grid-cards--3{grid-template-columns:repeat(2,1fr)}
  .step-list{grid-template-columns:repeat(2,1fr);row-gap:48px}
  .step-item:nth-child(2)::after{display:none}
  .media-card{grid-template-columns:220px 1fr;gap:22px}
  .media-card__go{grid-column:1/-1;justify-content:flex-start}
  .proof-block{grid-template-columns:1fr;gap:40px}
  .faq-wrap{grid-template-columns:1fr;gap:36px}
  .cta-open{grid-template-columns:1fr;padding:52px 40px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .container{padding:0 var(--gutter-m)}
  .section{padding:64px 0}
  .hero-channel{padding:136px 0 68px}
  .grid-cards--4,.grid-cards--3{grid-template-columns:1fr}
  .step-list{grid-template-columns:1fr}
  .step-item{padding:0}
  .step-item::after{left:34px;top:74px;width:1px;height:calc(100% - 74px)}
  .step-item:last-child::after{display:none}
  .media-card{grid-template-columns:1fr;padding:18px}
  .media-card__pic{aspect-ratio:16/9}
  .proof-figure{grid-template-columns:1fr}
  .cta-open{padding:40px 24px;border-radius:18px}
  .faq-q{font-size:1rem;padding:20px 0}
  .faq-a p{padding-right:0}
  .site-footer{padding:64px 0 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .dock-nav{height:56px;padding:0 16px;gap:14px}
  .dock-logo{font-size:15.5px}
  .hero-channel h1{font-size:1.95rem}
  .hero-actions .btn{width:100%}
  .cta-form input,.cta-form .btn{width:100%}
}
/* Foundation 覆盖 */
.grid-container{padding-left:0;padding-right:0}
.grid-x{margin-left:0;margin-right:0}
.grid-x>.cell{padding-left:0;padding-right:0}

/* roulang page: category4 */
/* ============================================================
   01. 设计变量
   ============================================================ */
:root{
  --ink:#0F1113;
  --ink-2:#1B1F23;
  --ink-3:#23282D;
  --paper:#F5F3EE;
  --paper-2:#FFFFFF;
  --lime:#C6F24E;
  --orange:#FF5A2B;
  --text:#2A2D31;
  --muted:#6B7078;
  --line:#E5E1D8;
  --line-dark:rgba(255,255,255,.12);

  --font-cn:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --fs-h1:clamp(2.1rem,5vw,3.9rem);
  --fs-h2:clamp(1.7rem,3.2vw,2.5rem);
  --fs-h3:clamp(1.12rem,1.6vw,1.4rem);
  --fs-body:16.5px;
  --fs-sm:13.5px;

  --sp-1:8px;  --sp-2:16px; --sp-3:24px; --sp-4:40px;
  --sp-5:64px; --sp-6:96px; --sp-7:124px;

  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-sq:10px;

  --sh-light:0 18px 40px rgba(15,17,19,.07);
  --sh-hover:0 26px 54px rgba(15,17,19,.13);
  --ease:cubic-bezier(.22,1,.36,1);
  --dur:260ms;

  --container:1200px;
}

/* ============================================================
   02. Reset 与基础排版
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:var(--fs-body);
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
a:hover{color:var(--orange);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;line-height:1.15;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.mono{font-family:var(--font-mono);letter-spacing:.06em;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);margin-bottom:16px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);flex:0 0 auto;}
.section{padding:var(--sp-6) 0;}
.section--tight{padding:var(--sp-5) 0;}
.section--dark{background:var(--ink);color:#E9E7E1;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:var(--fs-h2);}
.section-head p{margin-top:18px;color:var(--muted);font-size:1.02rem;}
.section--dark .section-head p{color:rgba(255,255,255,.66);}

/* ============================================================
   03. 按钮系统
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-weight:700;font-size:15px;line-height:1;
  border:1px solid transparent;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
  white-space:nowrap;
}
.btn--sm{padding:11px 20px;font-size:14px;}
.btn--primary{background:var(--ink);color:#F5F3EE;}
.btn--primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-2px);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{background:#D6FF63;color:var(--ink);transform:translateY(-2px);}
.btn--ghost{background:transparent;border-color:rgba(15,17,19,.28);color:var(--ink);border-radius:var(--r-sq);}
.btn--ghost:hover{background:var(--ink);color:#F5F3EE;border-color:var(--ink);}
.btn--ghost-light{background:transparent;border-color:rgba(255,255,255,.34);color:#FFFFFF;border-radius:var(--r-sq);}
.btn--ghost-light:hover{background:var(--lime);border-color:var(--lime);color:var(--ink);}
.btn--text{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--ink);padding:4px 0;}
.btn--text .arw{transition:transform var(--dur) var(--ease);}
.btn--text:hover{color:var(--orange);}
.btn--text:hover .arw{transform:translateX(4px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;}

/* ============================================================
   04. 浮动 Dock 导航
   ============================================================ */
.site-head{
  position:fixed;top:16px;left:0;right:0;z-index:120;
  display:flex;justify-content:center;
  padding:0 16px;
  pointer-events:none;
}
.dock-nav{
  pointer-events:auto;
  width:100%;max-width:1160px;
  display:flex;align-items:center;gap:20px;
  height:64px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:rgba(245,243,238,.74);
  border:1px solid rgba(15,17,19,.10);
  box-shadow:0 12px 34px rgba(15,17,19,.08);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  transition:height var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  position:relative;
}
.site-head.is-scrolled .dock-nav{
  height:56px;
  box-shadow:0 18px 44px rgba(15,17,19,.16);
  -webkit-backdrop-filter:blur(24px);
  backdrop-filter:blur(24px);
}
.site-head.is-dark .dock-nav{
  background:rgba(15,17,19,.78);
  border-color:rgba(255,255,255,.14);
  box-shadow:0 14px 36px rgba(0,0,0,.34);
}
.site-head.is-dark .dock-logo{color:#FFFFFF;}
.site-head.is-dark .dock-menu a{color:rgba(255,255,255,.76);}
.site-head.is-dark .dock-menu a:hover{color:#FFFFFF;}
.site-head.is-dark .dock-menu a.is-active{color:var(--lime);}

.dock-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:16.5px;color:var(--ink);
  letter-spacing:-.01em;flex:0 0 auto;
}
.dock-logo__mark{
  width:22px;height:22px;border-radius:7px;
  background:linear-gradient(135deg,var(--lime) 0%,var(--orange) 100%);
  box-shadow:inset 0 0 0 1px rgba(15,17,19,.18);
}
.dock-menu{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
}
.dock-menu a{
  display:inline-block;
  padding:8px 13px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:#42474D;
  position:relative;
}
.dock-menu a:hover{color:var(--ink);background:rgba(15,17,19,.06);}
.dock-menu a.is-active{color:var(--ink);}
.dock-menu a.is-active::after{
  content:"";position:absolute;left:50%;bottom:1px;
  transform:translateX(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--lime);
  box-shadow:0 0 0 3px rgba(198,242,78,.28);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.dock-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(15,17,19,.16);
  align-items:center;justify-content:center;margin-left:auto;
}
.dock-toggle span,
.dock-toggle span::before,
.dock-toggle span::after{
  display:block;width:17px;height:2px;background:currentColor;border-radius:2px;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
  content:"";position:relative;
}
.dock-toggle span::before{position:absolute;top:-6px;}
.dock-toggle span::after{position:absolute;top:6px;}
.dock-nav.is-open .dock-toggle span{background:transparent;}
.dock-nav.is-open .dock-toggle span::before{transform:translateY(6px) rotate(45deg);}
.dock-nav.is-open .dock-toggle span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============================================================
   05. 内页 Banner
   ============================================================ */
.page-banner{
  position:relative;
  padding:170px 0 84px;
  background:var(--ink);
  color:#EDEBE5;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,17,19,.94) 0%,rgba(15,17,19,.68) 52%,rgba(15,17,19,.42) 100%);
}
.page-banner .container{position:relative;z-index:2;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--lime);margin-bottom:22px;
}
.page-banner h1{
  font-size:var(--fs-h1);
  font-weight:800;line-height:1.08;letter-spacing:-.02em;
  color:#FFFFFF;max-width:16em;margin-bottom:22px;
}
.page-banner .lead{
  max-width:660px;font-size:1.06rem;line-height:1.8;
  color:rgba(255,255,255,.72);margin-bottom:32px;
}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;}
.banner-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:28px;margin-top:52px;padding-top:34px;
  border-top:1px solid var(--line-dark);max-width:760px;
}
.banner-stats .num{
  display:block;font-family:var(--font-mono);font-size:1.7rem;
  font-weight:700;color:var(--lime);letter-spacing:.02em;
}
.banner-stats .lb{display:block;font-size:13.5px;color:rgba(255,255,255,.62);margin-top:6px;}

/* ============================================================
   06. 面包屑
   ============================================================ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:22px 0 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--ink);font-weight:700;}

/* ============================================================
   07. 卖点条
   ============================================================ */
.pillars{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.pillar{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-light);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.pillar:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--sh-hover);}
.pillar .idx{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--orange);display:block;margin-bottom:14px;
}
.pillar h3{font-size:1.06rem;margin-bottom:10px;font-weight:700;}
.pillar p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0;}

/* ============================================================
   08. 时间轴
   ============================================================ */
.timeline{position:relative;padding-left:38px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--lime) 0%,rgba(198,242,78,.25) 55%,rgba(15,17,19,.08) 100%);
}
.tl-item{position:relative;padding-bottom:38px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:5px;
  width:24px;height:24px;border-radius:50%;
  background:var(--paper);
  border:2px solid var(--lime);
  box-shadow:0 0 0 5px rgba(198,242,78,.16);
}
.tl-item .step-no{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--orange);display:block;margin-bottom:8px;
}
.tl-item h3{font-size:var(--fs-h3);margin-bottom:10px;}
.tl-item p{color:var(--muted);font-size:15px;margin:0 0 12px;max-width:64ch;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--paper-2);
  font-size:12.5px;color:#4B5057;font-weight:600;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);}
.tag--dark{border-color:var(--line-dark);background:rgba(255,255,255,.05);color:rgba(255,255,255,.76);}
.tag--dark::before{background:var(--lime);}

/* ============================================================
   09. 安全事项卡片
   ============================================================ */
.card-post{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.card-post:hover{transform:translateY(-6px);border-color:var(--lime);box-shadow:var(--sh-hover);}
.card-post__media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--ink-2);}
.card-post__media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.card-post:hover .card-post__media img{transform:scale(1.04);}
.card-post__body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-post__body h3{font-size:1.08rem;line-height:1.4;}
.card-post__body p{font-size:14.5px;color:var(--muted);line-height:1.72;margin:0;}
.card-post__foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-post__foot .when{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);}

/* ============================================================
   10. 场景列表（横向行式）
   ============================================================ */
.scene-list{border-top:1px solid var(--line);}
.scene-row{
  display:grid;grid-template-columns:64px 1fr 240px;
  gap:24px;align-items:center;
  padding:26px 22px 26px 18px;
  border-bottom:1px solid var(--line);
  position:relative;
  transition:background-color var(--dur) var(--ease);
}
.scene-row::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--lime);border-radius:3px;
  transform:scaleY(0);transform-origin:top;
  transition:transform var(--dur) var(--ease);
}
.scene-row:hover{background:rgba(255,255,255,.72);}
.scene-row:hover::before{transform:scaleY(1);}
.scene-row .no{font-family:var(--font-mono);font-size:1.35rem;font-weight:700;color:var(--orange);}
.scene-row h3{font-size:1.05rem;font-weight:700;margin-bottom:6px;}
.scene-row p{font-size:14.5px;color:var(--muted);margin:0;max-width:62ch;}
.scene-row .side{text-align:right;font-size:13.5px;color:var(--muted);}
.scene-row .side strong{display:block;font-family:var(--font-mono);color:var(--ink);font-size:15px;margin-bottom:4px;}

/* ============================================================
   11. FAQ
   ============================================================ */
.faq-wrap{display:grid;grid-template-columns:300px 1fr;gap:56px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;
  font-size:1.02rem;font-weight:700;color:var(--ink);
  transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--orange);}
.faq-item.is-open .faq-q{transform:translateX(4px);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:4px;
  transition:transform var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 320ms var(--ease),opacity var(--dur) var(--ease),padding var(--dur) var(--ease);
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;padding:0 4px 24px;}
.faq-a p{font-size:14.8px;line-height:1.85;color:var(--muted);margin:0;max-width:70ch;}

/* ============================================================
   12. CTA 区块
   ============================================================ */
.cta-open{
  background:var(--ink);
  color:#EDEBE5;
  padding:var(--sp-6) 0;
  position:relative;
  overflow:hidden;
}
.cta-open::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(198,242,78,.16),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.cta-open h2{color:#FFFFFF;font-size:var(--fs-h2);margin-bottom:18px;}
.cta-open p{color:rgba(255,255,255,.68);max-width:56ch;margin-bottom:26px;}
.cta-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.cta-form .field{display:flex;flex-direction:column;gap:8px;}
.cta-form .field--full{grid-column:1 / -1;}
.cta-form label{font-size:13px;color:rgba(255,255,255,.62);font-family:var(--font-mono);letter-spacing:.08em;}
.cta-form input{
  width:100%;padding:13px 16px;border-radius:var(--r-sq);
  background:var(--ink-2);border:1px solid var(--line-dark);
  color:#FFFFFF;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.34);}
.cta-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.22);}
.cta-form .form-note{grid-column:1 / -1;font-size:12.5px;color:rgba(255,255,255,.42);margin:2px 0 0;}

/* ============================================================
   13. 页脚
   ============================================================ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:var(--sp-6) 0 30px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding-bottom:46px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:17px;color:#FFFFFF;margin-bottom:16px;
}
.footer-brand__mark{
  width:20px;height:20px;border-radius:6px;
  background:linear-gradient(135deg,var(--lime) 0%,var(--orange) 100%);
}
.brand-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.56);max-width:42ch;}
.footer-col h4{
  color:#FFFFFF;font-size:14px;letter-spacing:.06em;
  margin-bottom:18px;font-weight:700;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;}
.footer-col li a{color:rgba(255,255,255,.68);}
.footer-col li a:hover{color:var(--lime);}
.footer-col li.plain{color:rgba(255,255,255,.56);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:26px;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(255,255,255,.48);
}
.footer-bottom .mono{color:rgba(255,255,255,.42);}

/* ============================================================
   14. 进场动画
   ============================================================ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============================================================
   15. 响应式
   ============================================================ */
@media (max-width:1023px){
  :root{--sp-6:76px;--sp-5:52px;}
  .container{padding:0 22px;}
  .dock-menu a{padding:8px 10px;font-size:14px;}
  .dock-actions .btn{display:none;}
  .pillars{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-banner{padding:150px 0 68px;}
  .scene-row{grid-template-columns:52px 1fr 180px;gap:18px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  :root{--sp-6:56px;--sp-5:44px;}
  .container{padding:0 18px;}
  .site-head{top:10px;padding:0 12px;}
  .dock-nav{height:56px;padding:0 14px;gap:12px;}
  .dock-toggle{display:flex;}
  .dock-menu,
  .dock-actions{display:none;}
  .dock-nav.is-open .dock-menu{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;top:64px;left:0;right:0;
    background:rgba(245,243,238,.98);
    border:1px solid rgba(15,17,19,.10);
    border-radius:22px;
    padding:14px;
    box-shadow:0 22px 50px rgba(15,17,19,.18);
    -webkit-backdrop-filter:blur(20px);
    backdrop-filter:blur(20px);
  }
  .dock-nav.is-open .dock-menu a{padding:13px 14px;font-size:15.5px;border-radius:14px;}
  .dock-nav.is-open .dock-menu a.is-active{background:rgba(198,242,78,.24);}
  .dock-nav.is-open .dock-menu a.is-active::after{display:none;}
  .dock-nav.is-open .dock-actions{
    display:flex;flex-direction:column;
    position:absolute;top:calc(64px + 6px);left:0;right:0;
    margin-top:210px;padding:0 14px 14px;
  }
  .dock-nav.is-open .dock-actions .btn{display:inline-flex;width:100%;}
  .page-banner{padding:120px 0 56px;}
  .banner-stats{grid-template-columns:1fr;gap:18px;padding-top:26px;margin-top:38px;}
  .pillars{grid-template-columns:1fr;}
  .timeline{padding-left:30px;}
  .timeline::before{left:8px;}
  .tl-item::before{left:-30px;width:20px;height:20px;}
  .scene-row{grid-template-columns:1fr;gap:10px;padding:22px 16px;}
  .scene-row .side{text-align:left;}
  .cta-form{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .page-banner h1{font-size:2rem;}
  .banner-actions .btn{width:100%;}
  .card-post__body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}