/* ============================================================
   首页专属设计系统 (home.css)
   本站 GEO 专题页设计语言的组件 craft + 动效，
   仅首页 case 'home' 使用以下类名；GEO/社媒/网站开发页不受影响。
   配色沿用全站品牌蓝 (var(--brand))，新增深色 hero 变量与橙色强调。
   main.js 已自动接管：旋转词 / 数字滚动 / 入场交错 / 滚动高亮 /
   3D 聚光 / 信任带跑马灯 / 回到顶部 / 进度条 / 悬浮 CTA / 彩纸。
   ============================================================ */
:root{
  --accent:#F59E0B;      /* 暖橙强调（替代参考站 var(--accent)，更克制） */
  --dark:#0b1f33;
  --dark-2:#102a43;
  --teal:#1E54E8;
}

/* ===== 顶部社会证明条 ===== */
.ticker{background:linear-gradient(135deg,#0b1f33,#102a43);color:var(--brand-100);
  font-size:var(--fs-13);border-bottom:1px solid rgba(255,255,255,.08)}
.ticker__inner{display:flex;align-items:center;gap:14px;height:42px;flex-wrap:wrap;justify-content:center;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.ticker__inner>span{display:inline-flex;align-items:center;gap:4px;font-weight:600}
.ticker__inner b{color:var(--warm);font-weight:900;font-size:var(--fs-14);display:inline-block;min-width:1.4em;text-align:center}
.ticker__dot{display:inline-block;width:3px;height:3px;border-radius:50%;background:var(--sky);opacity:.6}
.ticker__pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(34,197,94,.7);
  animation:tickerPulse 1.8s infinite;margin-right:2px}
@keyframes tickerPulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.7)}70%{box-shadow:0 0 0 10px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
.ticker__cta{margin-left:auto;color:#0b1f33;background:var(--warm);padding:5px 13px;border-radius:999px;
  font-weight:800;font-size:var(--fs-13);transition:.2s}
.ticker__cta:hover{background:#fff;transform:translateY(-1px)}

/* ===== 产业带 / 服务行业 信任条 ===== */
.trustbar{background:var(--dark);border-top:1px solid rgba(255,255,255,.08);padding:15px 0}
.trustbar__inner{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.trustbar__label{font-size:var(--fs-13);font-weight:800;color:var(--teal);letter-spacing:.5px;white-space:nowrap}
.trustbar__items{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:center}
.trustbar__items span{font-size:var(--fs-14);color:#cdddec;font-weight:600}
.trustbar__items i{color:#4a6a85;font-style:normal}
.trustbar__track{display:contents}
.trustbar__track [aria-hidden="true"]{display:none}
@keyframes trustMarquee{to{transform:translateX(-50%)}}

/* ===== Hero（深色）===== */
.hero{position:relative;overflow:hidden;background:
  radial-gradient(1200px 600px at 85% -10%,rgba(30,84,232,.18),transparent 60%),
  linear-gradient(180deg,var(--dark),var(--dark-2));color:#fff;padding:72px 0 86px}
.hero__bg{position:absolute;inset:0;z-index:0}
.blob{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55}
.blob--1{width:420px;height:420px;background:var(--brand);top:-120px;left:-80px}
.blob--2{width:380px;height:380px;background:var(--teal);bottom:-140px;right:6%}
.grid{position:absolute;inset:0;background-image:
  linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;mask:radial-gradient(circle at 50% 30%,#000,transparent 75%)}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;
  gap:48px;align-items:center;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.pill{display:inline-block;font-size:var(--fs-13);font-weight:700;letter-spacing:.5px;
  padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);color:#cfeffb;margin-bottom:20px}
.hero__title{font-size:clamp(34px,5vw,54px);line-height:1.18;font-weight:900;letter-spacing:-.5px;margin:0 0 20px}
.hero__title em{background:linear-gradient(120deg,var(--warm),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent;font-style:normal}
.hero__sub{margin:20px 0 30px;font-size:var(--fs-17);color:var(--brand-100);max-width:540px;line-height:1.7}
.hero__sub strong{color:#fff}
.hero__sub .hl{color:var(--accent);font-weight:800}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap}
/* 深色 Hero 上的描边按钮：默认 .btn--ghost 是深色字，需覆盖为白字+半透明描边 */
.hero__cta .btn--ghost{color:#fff;border-color:rgba(255,255,255,.36);background:rgba(255,255,255,.06)}
.hero__cta .btn--ghost:hover{color:#fff;border-color:rgba(255,255,255,.65);background:rgba(255,255,255,.14);transform:translateY(-2px)}
.hero__stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.hero__stats b{display:block;font-size:var(--fs-26);font-weight:900;color:#fff;line-height:1}
.hero__stats span{font-size:var(--fs-13);color:#a9bdd0;margin-top:4px;display:block}

/* Hero 右侧数据看板示意卡 */
.hero__card{position:relative}
.mock{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:18px;padding:16px;backdrop-filter:blur(8px);box-shadow:var(--shadow)}
.mock__bar{display:flex;gap:7px;margin-bottom:14px}
.mock__bar i{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.3)}
.mock__row{display:flex;align-items:center;justify-content:space-between;
  background:rgba(255,255,255,.06);border-radius:11px;padding:13px 15px;margin-bottom:10px;font-size:var(--fs-14)}
.mock__row span{color:#cdddec}
.mock__row b.up{color:var(--ok);font-weight:800}
.mock__row b.ok{color:var(--sky);font-weight:800}
.float-tag{position:absolute;font-size:var(--fs-12);font-weight:700;padding:8px 13px;border-radius:999px;
  background:#fff;color:var(--brand-d);box-shadow:var(--shadow);z-index:3}
.float-tag--1{top:-14px;right:-6px}
.float-tag--2{bottom:-16px;left:-10px;background:var(--accent);color:#fff}

/* ===== 通用区块 ===== */
.section{padding:82px 0}
.sec-head{text-align:center;max-width:720px;margin:0 auto 48px}
.sec-head--left{text-align:left;margin:0 0 22px}
.sec-head__kicker{display:inline-block;font-size:var(--fs-13);font-weight:800;letter-spacing:1px;
  color:var(--brand-d);background:var(--brand-l);padding:6px 14px;border-radius:999px;margin-bottom:14px}
.sec-head__title{font-size:clamp(26px,3.4vw,38px);font-weight:900;line-height:1.25;letter-spacing:-.4px;margin:0 0 12px}
.sec-head__desc{margin-top:14px;color:var(--ink-soft);font-size:var(--fs-16);line-height:1.7}

/* ===== 痛点 ===== */
.pain{background:#f7fafc}
.pain__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain__item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.25s;position:relative;overflow:hidden}
.pain__item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--warm-soft)}
.pain__no{font-size:var(--fs-40);font-weight:900;color:var(--warm-soft);line-height:1}
.pain__item h3{margin:10px 0 10px;font-size:var(--fs-21)}
.pain__item p{color:var(--ink-soft);font-size:var(--fs-15);line-height:1.7}

/* ===== 产品 / 服务 ===== */
.prod__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;display:flex;flex-direction:column;transition:.25s;position:relative}
.prod__card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.prod__card--hot{border-color:var(--brand);box-shadow:0 14px 40px -22px rgba(47,107,255,.6)}
.prod__badge{position:absolute;top:-13px;left:26px;background:var(--accent);color:#fff;
  font-size:var(--fs-12);font-weight:800;padding:5px 13px;border-radius:999px}
.prod__icon{font-size:var(--fs-34);margin-bottom:12px}
.prod__card h3{font-size:var(--fs-23);margin-bottom:4px}
.prod__tag{color:var(--brand-d);font-weight:700;font-size:var(--fs-14);margin-bottom:16px}
.prod__card ul{list-style:none;margin:0 0 18px;flex:1;padding:0}
.prod__card ul li{padding:7px 0 7px 24px;position:relative;color:var(--ink-soft);font-size:var(--fs-15);line-height:1.6}
.prod__card ul li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:900}
.prod__price{font-weight:900;font-size:var(--fs-18);color:var(--ink);margin-bottom:16px}

/* ===== 案例（数字滚动）===== */
.cases{background:linear-gradient(180deg,#f7fafc,#fff)}
/* 真实 AI 命中横幅（数据来自客户 GEO 后台分享） */
.hitbar{margin:0 0 26px;background:linear-gradient(135deg,var(--dark),var(--dark-2));
  border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:20px 24px;
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;color:#fff}
.hitbar__brand{font-size:var(--fs-17);font-weight:900;line-height:1.35}
.hitbar__brand small{display:block;font-size:var(--fs-13);color:#a9bdd0;font-weight:600;margin-top:2px}
.hitbar__links{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap}
.hitbar__links .btn--ghost{color:#cfe7f5;border-color:rgba(255,255,255,.35);background:transparent}
.hitbar__links .btn--ghost:hover{background:rgba(255,255,255,.1)}
.hitbar__platforms{display:flex;gap:8px;flex-wrap:wrap}
.hitbar__pf{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:var(--brand-100);
  font-size:var(--fs-12);font-weight:700;padding:5px 11px;border-radius:999px}
.hitbar__pf.on{background:rgba(34,197,94,.16);border-color:rgba(34,197,94,.5);color:var(--ok)}
.hitbar__count{margin-left:auto;text-align:right}
.hitbar__count b{display:block;font-size:var(--fs-26);font-weight:900;color:var(--warm);line-height:1}
.hitbar__count span{font-size:var(--fs-12);color:#a9bdd0}
@media (max-width:760px){.hitbar__count{margin-left:0;text-align:left}}
.cases__grid{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:22px}
.case__big{background:linear-gradient(135deg,var(--dark),var(--dark-2));color:#fff;
  border-radius:var(--radius);padding:34px 28px;display:flex;flex-direction:column;justify-content:center}
.case__num{font-size:var(--fs-54);font-weight:900;line-height:1;
  background:linear-gradient(120deg,var(--warm),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.case__num--x{background:linear-gradient(120deg,var(--sky),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.case__big p{margin-top:14px;color:var(--brand-100);font-size:var(--fs-16);line-height:1.6}
.case__big b{color:#fff}
.case__small{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px}
.case__small h4{font-size:var(--fs-19);margin-bottom:14px}
.case__small ul{list-style:none;padding:0;margin:0}
.case__small li{padding:9px 0 9px 22px;position:relative;color:var(--ink-soft);font-size:var(--fs-15);line-height:1.6}
.case__small li::before{content:"“";position:absolute;left:2px;color:var(--brand);font-weight:900;font-size:var(--fs-18);top:-2px}

/* ===== 为什么选我 ===== */
.why{background:var(--dark);color:#fff}
.why__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.why .sec-head__kicker{background:rgba(255,255,255,.12);color:var(--sky-l)}
.why .sec-head__title{color:#fff}
.why__list{list-style:none;display:flex;flex-direction:column;gap:16px;padding:0;margin:0}
.why__list li{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:14px;padding:16px 20px;font-size:var(--fs-16);color:var(--brand-100);line-height:1.7}
.why__list b{color:#fff;margin-right:6px}
.why__quote{background:linear-gradient(135deg,rgba(30,84,232,.18),rgba(47,107,255,.14));
  border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:34px 30px}
.why__quote p{font-size:var(--fs-21);font-weight:700;line-height:1.5;margin:0}
.why__quote em{color:var(--warm);font-style:normal}
.why__quote span{display:block;margin-top:16px;color:var(--sky-l);font-size:var(--fs-14)}

/* ===== 合作流程 ===== */
.process{background:#f7fafc}
.process__steps{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;padding:0;margin:0}
.sales-mind{background:linear-gradient(180deg,#eef6ff,#fff)}
.sales-mind .step{border-top:3px solid var(--brand);padding-top:22px}
.sales-mind .step__time{color:var(--brand-d);font-weight:700}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;position:relative;transition:.25s}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.step__no{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;font-weight:900;font-size:var(--fs-17);margin-bottom:14px}
.step h4{font-size:var(--fs-17);margin:0 0 8px}
.step p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.6;margin:0}

/* ===== 交付团队 ===== */
.team__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.team__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;text-align:center;transition:.25s}
.team__card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.team__icon{font-size:var(--fs-32);display:block;margin-bottom:12px}
.team__card h4{font-size:var(--fs-17);margin:0 0 8px}
.team__card p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.6;margin:0}

/* ===== 保障承诺 ===== */
.guarantee{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;padding:46px 0}
.guarantee__inner{text-align:center;max-width:var(--maxw);margin:0 auto;padding:0 22px}
.guarantee__inner h2{font-size:clamp(22px,3vw,30px);font-weight:900;margin:0 0 22px}
.guarantee__items{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.guarantee__items span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:10px 18px;border-radius:999px;font-size:var(--fs-15);font-weight:600}
.guarantee__items b{font-weight:900}

/* ===== FAQ ===== */
.faq{background:#f7fafc}
.faq__list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}
.faq__item[open]{box-shadow:var(--shadow);border-color:var(--brand)}
.faq__item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:var(--fs-16);
  display:flex;align-items:center;justify-content:space-between;gap:12px;user-select:none}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";font-size:var(--fs-22);font-weight:400;color:var(--brand);transition:.25s;line-height:1}
.faq__item[open] summary::after{transform:rotate(45deg)}
.faq__item p{padding:0 22px 18px;color:var(--ink-soft);font-size:var(--fs-15);line-height:1.7;margin:0}

/* ===== CTA ===== */
.cta{background:radial-gradient(800px 400px at 20% 0%,rgba(30,84,232,.16),transparent 60%),
  linear-gradient(180deg,#fff,#f7fafc)}
.cta__inner{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:26px;padding:48px;box-shadow:var(--shadow);
  max-width:var(--maxw);margin:0 auto}
.cta__text h2{font-size:clamp(26px,3vw,34px);font-weight:900;margin:0}
.cta__text p{margin:14px 0 18px;color:var(--ink-soft);font-size:var(--fs-16);line-height:1.7}
.cta__text b{color:var(--accent)}
.cta__points{list-style:none;display:flex;flex-direction:column;gap:10px;margin:0 0 24px;padding:0}
.cta__points li{color:var(--ink);font-size:var(--fs-15);font-weight:600}
.cta__qr{text-align:center;margin-top:26px}
.qr{width:220px;height:220px;margin:0 auto;border-radius:18px;border:2px dashed var(--line);
  display:grid;place-items:center;background:#fbfdff;padding:8px}
.qr img{width:100%;height:100%;object-fit:contain;border-radius:10px;display:block}
.qr__placeholder{text-align:center;color:var(--ink-soft)}
.qr__placeholder span{display:block;font-size:var(--fs-18);font-weight:800;color:var(--brand-d)}
.qr__placeholder small{display:block;margin-top:8px;font-size:var(--fs-13);line-height:1.6}
.cta__qr-cap{margin-top:14px;font-size:var(--fs-14);color:var(--ink-soft);font-weight:600}
.cta__guarantee{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px}
.cta__guarantee span{background:#ecfdf5;color:var(--ok-d);border:1px solid var(--ok-soft);
  padding:6px 12px;border-radius:999px;font-size:var(--fs-13);font-weight:700}
.cta__form{background:#fbfdff;border:1px solid var(--line);border-radius:18px;padding:28px}
.cta__form h3{font-size:var(--fs-19);font-weight:900;margin:0 0 18px}
.lead-form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:var(--fs-14);font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{font-family:inherit;font-size:var(--fs-16);padding:12px 14px;
  border:1.5px solid var(--line);border-radius:11px;background:#fff;color:var(--ink);transition:.2s;outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.field textarea{resize:vertical;min-height:70px}
.field.error input,.field.error textarea,.field.error select{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,.12)}
.err-msg{font-size:var(--fs-13);color:#ef4444;font-weight:600}
.form-note{margin-top:4px;text-align:center;font-size:var(--fs-13);color:var(--ink-soft);margin:0}
.form-success{text-align:center;padding:26px 10px}
.form-success__icon{font-size:var(--fs-40);display:block;margin-bottom:10px}
.form-success h4{font-size:var(--fs-20);margin:0 0 8px}
.form-success p{color:var(--ink-soft);font-size:var(--fs-15);margin:0 0 18px}

/* ===== 行业方案 · 两条线 ===== */
.tracks{background:#f7fafc}
.tracks__grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.track{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;display:flex;flex-direction:column;transition:.25s}
.track:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.track--factory{border-color:var(--brand)}
.track__head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.track__icon{font-size:var(--fs-38)}
.track__head h3{font-size:var(--fs-22);font-weight:900;margin:0}
.track__head p{color:var(--ink-soft);font-size:var(--fs-14);margin:2px 0 0}
.track__list{list-style:none;margin:0 0 22px;padding:0;flex:1}
.track__list li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:var(--fs-15);color:var(--ink-soft);line-height:1.6}
.track__list li:last-child{border-bottom:0}
.track__list b{color:var(--ink)}

/* ===== 为什么按月付费 ===== */
.why-month{background:#fff}
.wm__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.wm__card{background:#f7fafc;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.25s;position:relative;overflow:hidden}
.wm__card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand)}
.wm__no{position:absolute;top:12px;right:18px;font-size:var(--fs-34);font-weight:900;color:rgba(47,107,255,.14);line-height:1}
.wm__card h4{font-size:var(--fs-17);margin:0 0 8px}
.wm__card p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.65;margin:0}

/* ===== 滚动入场动画 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== 全站动态特效 ===== */
.rotator{display:inline-block;min-width:5em;text-align:center;color:var(--accent);font-weight:800;
  transition:opacity .25s ease,transform .25s ease;vertical-align:baseline}
.rotator.rotating{opacity:0;transform:translateY(-6px)}
.blob--1{animation:blobDrift 16s ease-in-out infinite}
.blob--2{animation:blobDrift 20s ease-in-out 2s infinite}
@keyframes blobDrift{0%,100%{transform:translate(0,0)}50%{transform:translate(26px,-22px)}}
.grid{animation:gridPan 18s linear infinite}
@keyframes gridPan{to{background-position:46px 46px}}
.float-tag--1{animation:floaty 5s ease-in-out infinite}
.float-tag--2{animation:floaty 6s ease-in-out 1.2s infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.btn--primary{position:relative;overflow:hidden}
.btn--primary::after{content:"";position:absolute;top:0;left:-80%;width:46%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-20deg);transition:left .55s ease}
.btn--primary:hover::after{left:135%}
.faq__item[open] p{animation:faqIn .32s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:none}}
.faq__item summary:hover{color:var(--brand-d)}
.reveal.in .pain__grid>*,
.reveal.in .prod__grid>*,
.reveal.in .tracks__grid>*,
.reveal.in .team__grid>*,
.reveal.in .wm__grid>*,
.reveal.in .cases__grid>*,
.reveal.in .process__steps>*,
.reveal.in .why__list>*{
  animation:staggerIn .65s cubic-bezier(.2,.7,.2,1) backwards;
  animation-delay:calc(var(--i,0)*70ms)}
@keyframes staggerIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.reveal.in .guarantee__items>*{animation:staggerIn .65s cubic-bezier(.2,.7,.2,1) backwards}
.reveal.in .guarantee__items>*:nth-child(2){animation-delay:80ms}
.reveal.in .guarantee__items>*:nth-child(3){animation-delay:160ms}
.reveal.in .guarantee__items>*:nth-child(4){animation-delay:240ms}
.nav__links a.active{color:var(--brand-d);position:relative}
.nav__links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2.5px;
  border-radius:2px;background:linear-gradient(90deg,var(--brand),var(--brand-d))}
.to-top{position:fixed;right:18px;bottom:18px;z-index:60;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;font-size:var(--fs-21);font-weight:900;box-shadow:0 14px 30px -12px rgba(47,107,255,.7);
  opacity:0;visibility:hidden;transform:translateY(14px);transition:.3s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.hero__title em{background-size:200% auto;animation:titleShimmer 5s linear infinite}
.case__num{background-size:200% auto;animation:titleShimmer 6s linear infinite}
@keyframes titleShimmer{to{background-position:200% center}}
.hero__card.in .mock__row{animation:staggerIn .55s cubic-bezier(.2,.7,.2,1) backwards}
.hero__card.in .mock__row:nth-child(2){animation-delay:.18s}
.hero__card.in .mock__row:nth-child(3){animation-delay:.36s}
.hero__card.in .mock__row:nth-child(4){animation-delay:.54s}
.hero__card.in .float-tag--1{animation:floaty 5s ease-in-out infinite,fadeIn .4s ease .5s backwards}
.hero__card.in .float-tag--2{animation:floaty 6s ease-in-out 1.2s infinite,fadeIn .4s ease .7s backwards}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.c-spot::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:0;
  background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(47,107,255,.16),transparent 65%);
  opacity:0;transition:opacity .3s}
.c-spot:hover::before{opacity:1}
.prod__card--hot .btn--primary:not(:hover){animation:ctaPulse 2.6s ease-in-out infinite}
@keyframes ctaPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.035)}}
.sec-head__title{position:relative;display:inline-block}
.sec-head__title::after{content:"";position:absolute;left:50%;bottom:-10px;width:0;height:3px;border-radius:3px;
  transform:translateX(-50%);background:linear-gradient(90deg,var(--brand),var(--brand-d),var(--accent));
  transition:width .7s cubic-bezier(.2,.7,.2,1) .12s}
.reveal.in .sec-head__title::after{width:64px}
.sec-head--left .sec-head__title::after{left:0;transform:none}
.prod__card:hover .prod__icon,.team__card:hover .team__icon,.track:hover .track__icon,
.step:hover .step__no{animation:iconBob .6s ease}
@keyframes iconBob{0%,100%{transform:translateY(0)}40%{transform:translateY(-7px)}}
.num-pop{display:inline-block;animation:numPop .4s ease}
@keyframes numPop{0%{transform:scale(1)}40%{transform:scale(1.16)}100%{transform:scale(1)}}
.progress{position:fixed;top:0;left:0;width:100%;height:3px;z-index:80;
  background:linear-gradient(90deg,var(--brand),var(--brand-d),var(--accent));
  transform-origin:0 50%;transform:scaleX(0);pointer-events:none}
.confetti{position:fixed;z-index:90;border-radius:2px;pointer-events:none;
  animation:confettiFly 1.4s cubic-bezier(.2,.7,.3,1) forwards}
@keyframes confettiFly{
  0%{transform:translate(0,0) rotate(0deg);opacity:1}
  70%{opacity:1}
  100%{transform:translate(var(--vx),var(--vy)) rotate(var(--rot));opacity:0}
}

/* ===== 响应式 ===== */
@media (max-width:920px){
  .hero__inner{grid-template-columns:1fr;gap:34px}
  .hero__card{max-width:440px}
  .why__inner{grid-template-columns:1fr}
  .cta__inner{grid-template-columns:1fr;padding:36px 26px}
  .cases__grid{grid-template-columns:1fr 1fr}
  .case__small{grid-column:1 / -1}
  .process__steps{grid-template-columns:repeat(3,1fr)}
  .team__grid{grid-template-columns:repeat(2,1fr)}
  .tracks__grid{grid-template-columns:1fr}
  .wm__grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .nav__links{position:fixed;top:68px;left:0;right:0;background:#fff;flex-direction:column;
    gap:0;padding:10px 22px 18px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:.3s;box-shadow:var(--shadow)}
  .nav__links.open{transform:none}
  .nav__links a{padding:13px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav__links a:last-child{border-bottom:0;margin-top:8px}
  .pain__grid,.prod__grid,.process__steps,.team__grid,.wm__grid{grid-template-columns:1fr}
  .cases__grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .hero__stats{gap:24px}
  .hero__cta{flex-direction:column}
  .hero__cta .btn{width:100%;text-align:center}
  .cta__form{padding:22px 18px}
  .ticker__inner{height:auto;padding:8px 0;gap:8px;font-size:var(--fs-12)}
  .ticker__inner>span:nth-child(2),.ticker__inner>span:nth-child(4){display:none}
  .ticker__dot:nth-of-type(1){display:none}
  .ticker__cta{margin-left:0;margin-top:4px}
  .cta__guarantee{flex-direction:column;align-items:flex-start}
  .cta__guarantee span{font-size:var(--fs-13)}
}
@media (max-width:760px){
  .trustbar__inner{flex-direction:column;gap:8px;overflow:hidden}
  .trustbar__track{display:flex;width:max-content;animation:trustMarquee 30s linear infinite}
  .trustbar__track .trustbar__items{flex-wrap:nowrap;padding-right:40px;justify-content:flex-start}
  .trustbar__track [aria-hidden="true"]{display:flex}
  .to-top{bottom:calc(84px + env(safe-area-inset-bottom));right:14px;width:42px;height:42px;font-size:var(--fs-19)}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
}