/*
 * ty-skin.css —— 兔兔云官网皮肤层（源自 main.css v2.0）
 *
 * 定位：只管「品牌视觉」——配色变量、渐变遮罩、hover 位移、装饰伪元素、
 *       容器宽度、标题字号阶、按钮形态、卡片质感、响应式降级。
 * 不改：结构/内容/文案（一律由 Bricks 元素承担）。
 *
 * ⚠️ 断点已对齐 Bricks：1024 = tablet_portrait / 767 = mobile_landscape。
 *    改这里会全站生效；想只改一处请用 Bricks 编辑器改该元素。
 * ⚠️ 图片 URL 已是媒体库绝对地址，不要手拼路径（媒体库路径带年月）。
 */
/* ============================================================
   兔兔云官网 V2.0 — 国内商务风格（参考宜选网设计语言）
   品牌色沿用兔兔云 V1.4：藏青 #142a43 / 商务蓝 #2458c7
   ============================================================ */

:root{
  --navy:#142a43;
  --navy-2:#1d3a5f;
  --blue:#2458c7;
  --blue-2:#1947ac;
  --cyan:#94c3df;
  --ink:#172d45;
  --muted:#536376;
  --line:#dfe5ec;
  --soft:#f4f6f8;
  --white:#ffffff;
  --radius:5px;
  --shadow:0 8px 24px rgba(20,42,67,.06);
  --shadow-hover:0 16px 40px rgba(20,42,67,.14);
  --header-h:80px;
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  font-size:15px;line-height:1.75;color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:var(--blue)}
ul{list-style:none}
button{font:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3{font-weight:700;line-height:1.35}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #5987e9;outline-offset:3px}
section[id]{scroll-margin-top:calc(var(--header-h) + 10px)}

.container{width:min(1200px,100% - 48px);margin-inline:auto}

/* ---------- 通用按钮（4-5px 小圆角 · 国内商务风） ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 32px;border-radius:var(--radius);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  background:var(--blue);color:#fff;border:1px solid var(--blue);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:hover{background:var(--blue-2);border-color:var(--blue-2);box-shadow:0 8px 20px rgba(36,88,199,.3)}
.btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;box-shadow:none}
.btn-outline-blue{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn-outline-blue:hover{background:var(--blue);color:#fff}
.btn-light{background:#fff;color:var(--blue);border-color:#fff}
.btn-light:hover{background:#eef3fc;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}

/* 文字链接 · 箭头 */
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--blue);font-size:14px;font-weight:600;
}
.link-more i{font-style:normal;transition:transform .2s ease}
.link-more:hover i{transform:translateX(4px)}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--navy);color:#b9cce0;font-size:12px;height:36px;display:flex;align-items:center}
.topbar .container{display:flex;justify-content:space-between;gap:16px}
.topbar a{color:#b9cce0}
.topbar a:hover{color:#fff}
.topbar-right{display:flex;gap:20px;align-items:center}

/* ---------- 主导航（80px 白色吸顶） ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;height:var(--header-h);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(20,42,67,.1)}
.header-inner{height:var(--header-h);display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:42px;height:44px;background:var(--navy);border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.brand-mark svg{width:30px;height:30px}
.brand-copy{display:flex;flex-direction:column;line-height:1.25}
.brand-copy strong{font-size:19px;letter-spacing:.05em;color:var(--navy)}
.brand-copy small{font-size:11px;letter-spacing:.14em;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;height:100%}
.main-nav>a,.nav-menu-trigger{
  font-size:15px;color:var(--ink);position:relative;padding:10px 12px;white-space:nowrap;
  transition:color .2s ease;background:transparent;
}
.main-nav>a:hover,.nav-menu-trigger:hover,.nav-menu.open .nav-menu-trigger{color:var(--blue)}
.main-nav>a::after,.nav-menu-trigger::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--blue);
  transition:width .25s ease;
}
.main-nav>a:hover::after,.nav-menu-trigger:hover::after,.nav-menu.open .nav-menu-trigger::after{width:100%}
.nav-menu{position:relative;height:100%;display:flex;align-items:center}
.nav-menu-trigger{display:flex;align-items:center;gap:7px;font-family:inherit;line-height:1.4}
.nav-chevron{font-size:9px;color:var(--muted);transition:transform .2s ease,color .2s ease}
.nav-menu:hover .nav-chevron,.nav-menu:focus-within .nav-chevron,.nav-menu.open .nav-chevron{color:var(--blue);transform:rotate(180deg)}
.nav-dropdown{
  position:absolute;top:calc(100% - 8px);left:50%;z-index:110;
  min-width:176px;padding:8px;background:#fff;border:1px solid var(--line);border-radius:8px;
  box-shadow:0 14px 38px rgba(20,42,67,.16);
  opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-dropdown::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.nav-dropdown a{
  display:block;padding:11px 14px;border-radius:5px;color:var(--ink);font-size:14px;line-height:1.45;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-dropdown a:hover,.nav-dropdown a:focus-visible{background:#eef3fc;color:var(--blue)}
.nav-menu:hover .nav-dropdown,.nav-menu:focus-within .nav-dropdown,.nav-menu.open .nav-dropdown{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-lang{font-size:14px;font-weight:600;color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:7px 12px}
.nav-lang:hover{color:var(--blue);background:var(--soft)}
.nav-burger{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-burger span{width:22px;height:2px;background:var(--navy);transition:transform .25s ease,opacity .2s ease}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉菜单 */
.mobile-tray{
  display:none;position:fixed;left:0;right:0;top:var(--header-h);bottom:0;z-index:99;
  background:#fff;padding:12px 24px 40px;overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-tray.open{display:block}
.mobile-tray a{
  display:block;padding:15px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--soft);
}
.mobile-tray a:hover{color:var(--blue)}
.mobile-nav-group{border-bottom:1px solid var(--soft)}
.mobile-nav-group summary{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 4px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--ink);
}
.mobile-nav-group summary::-webkit-details-marker{display:none}
.mobile-nav-group summary .nav-chevron{font-size:9px}
.mobile-nav-group[open] summary{color:var(--blue)}
.mobile-nav-group[open] summary .nav-chevron{color:var(--blue);transform:rotate(180deg)}
.mobile-nav-group a{padding:12px 4px 12px 22px;font-size:14px;font-weight:500;border-top:1px solid var(--soft);border-bottom:0}
.mobile-tray .btn{margin-top:24px;width:100%}

/* ---------- Hero 全屏 ---------- */
.hero{
  position:relative;min-height:calc(100vh - 36px - var(--header-h));
  min-height:640px;
  display:flex;align-items:center;
  background:var(--navy) url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/hero-bg-v2-1.jpg") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(15,32,51,.88) 8%,rgba(15,32,51,.55) 45%,rgba(15,32,51,.18) 75%);
}
.hero-inner{position:relative;z-index:1;padding:90px 0 140px;color:#fff}
.hero-label{
  display:inline-flex;align-items:center;gap:10px;
  font-size:14px;letter-spacing:.1em;color:var(--cyan);margin-bottom:22px;
}
.hero-label::before{content:"";width:34px;height:2px;background:var(--cyan)}
.hero h1{
  font-size:clamp(32px,4.2vw,52px);line-height:1.28;font-weight:700;
  max-width:640px;text-shadow:0 2px 12px rgba(0,0,0,.25);
}
.hero-sub{
  margin-top:20px;max-width:560px;font-size:17px;line-height:1.9;color:#d5e2f2;
}
.hero-sub .keep-together{white-space:nowrap}
.hero-ctas{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap}
.hero-points{
  display:flex;gap:28px;margin-top:44px;flex-wrap:wrap;
  font-size:14px;color:#c2d4e8;
}
.hero-points span{display:inline-flex;align-items:center;gap:8px}
.hero-points svg{width:16px;height:16px;stroke:var(--cyan)}

/* Hero 底部数据统计条（上浮卡片） */
.hero-stats{
  position:relative;z-index:2;margin-top:-88px;
}
.hero-stats-inner{
  background:#fff;border-radius:8px;box-shadow:0 20px 50px rgba(15,32,51,.14);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-cell{
  padding:34px 24px;text-align:center;position:relative;
}
.stat-cell + .stat-cell::before{
  content:"";position:absolute;left:0;top:26%;height:48%;width:1px;background:var(--line);
}
.stat-num{
  font-size:38px;font-weight:700;color:var(--blue);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:18px;font-weight:600;margin-left:2px}
.stat-label{margin-top:6px;font-size:14px;color:var(--muted)}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0}
.section-soft{background:var(--soft)}
.section-navy{background:var(--navy);color:#fff}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--blue);
  margin-bottom:14px;text-transform:uppercase;
}
.sec-head.center .sec-eyebrow::after,
.sec-head.center .sec-eyebrow::before{content:"";width:26px;height:1px;background:var(--blue);opacity:.5}
.sec-head h2{font-size:clamp(26px,3vw,36px);color:var(--navy)}
.section-navy .sec-head h2{color:#fff}
.sec-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.9}
.section-navy .sec-head p{color:#b9cce0}

/* ---------- 三类人群卡片 ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.audience-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 30px;transition:transform .25s ease,box-shadow .25s ease;
}
.audience-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.audience-icon{
  width:56px;height:56px;border-radius:8px;background:#eef3fc;
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
}
.audience-icon svg{width:28px;height:28px;stroke:var(--blue)}
.audience-card .tag{font-size:13px;color:var(--blue);font-weight:600;margin-bottom:6px}
.audience-card h3{font-size:20px;color:var(--navy);margin-bottom:10px}
.audience-card p{font-size:14px;color:var(--muted);line-height:1.9;margin-bottom:20px}

/* ---------- 核心服务（双大卡） ---------- */
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.service-card{
  border-radius:8px;overflow:hidden;background:#fff;border:1px solid var(--line);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.service-cover{aspect-ratio:21/10;overflow:hidden}
.service-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.service-card:hover .service-cover img{transform:scale(1.05)}
.service-body{padding:32px 32px 36px;display:flex;flex-direction:column;flex:1}
.service-body .no{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--cyan);margin-bottom:8px}
.service-body h3{font-size:24px;color:var(--navy);margin-bottom:12px}
.service-body>p{font-size:14px;color:var(--muted);line-height:1.9;margin-bottom:18px}
.service-feats{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;margin-bottom:26px}
.service-feats li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink)}
.service-feats svg{width:15px;height:15px;stroke:var(--blue);flex-shrink:0}
.service-body .btn{align-self:flex-start;margin-top:auto}

/* ---------- 为什么选择兔兔云（图文分栏） ---------- */
.why-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center}
.why-media{border-radius:8px;overflow:hidden;box-shadow:0 24px 60px rgba(15,32,51,.16)}
.why-list{display:flex;flex-direction:column}
.why-item{display:flex;gap:20px;padding:24px 0;border-bottom:1px solid var(--line)}
.why-item:first-child{padding-top:0}
.why-item:last-child{border-bottom:0;padding-bottom:0}
.why-item .no{
  flex-shrink:0;width:46px;height:46px;border-radius:50%;background:#eef3fc;
  color:var(--blue);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.why-item h3{font-size:17px;color:var(--navy);margin-bottom:6px}
.why-item p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- 报价卡片 ---------- */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:38px 32px;display:flex;flex-direction:column;position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.price-card.featured{border-top:4px solid var(--blue);box-shadow:0 16px 44px rgba(36,88,199,.14)}
.price-badge{
  position:absolute;top:-14px;left:32px;background:var(--blue);color:#fff;
  font-size:12px;font-weight:600;padding:5px 14px;border-radius:3px;letter-spacing:.06em;
}
.price-name{font-size:18px;font-weight:700;color:var(--navy)}
.price-value{margin:14px 0 4px;font-size:42px;font-weight:700;color:var(--blue);line-height:1.1;font-variant-numeric:tabular-nums}
.price-value small{font-size:20px;margin-right:2px}
.price-value em{font-style:normal;font-size:14px;font-weight:400;color:var(--muted);margin-left:4px}
.price-intro{font-size:13px;color:var(--muted);line-height:1.85;min-height:72px;margin:10px 0 20px;padding-bottom:20px;border-bottom:1px dashed var(--line)}
.price-list{flex:1;display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink)}
.price-list svg{width:16px;height:16px;stroke:var(--blue);flex-shrink:0;margin-top:3px}

/* ---------- SEO 深蓝带 ---------- */
.seo-band-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center}
.seo-overview .sec-eyebrow{color:var(--cyan)}
.seo-overview h2{font-size:clamp(26px,3vw,36px);color:#fff;margin-bottom:16px}
.seo-overview>p{color:#b9cce0;line-height:1.9;margin-bottom:32px;max-width:440px}
.seo-plans{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.seo-plan{
  background:rgba(255,255,255,.06);border:1px solid rgba(148,195,223,.25);
  border-top:3px solid var(--cyan);border-radius:var(--radius);
  padding:28px 26px;transition:background .2s ease,transform .2s ease;
}
.seo-plan:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.seo-plan .label{font-size:13px;color:var(--cyan);font-weight:600}
.seo-plan .amount{font-size:34px;font-weight:700;color:#fff;margin:10px 0 2px;font-variant-numeric:tabular-nums}
.seo-plan .amount small{font-size:14px;font-weight:400;color:#b9cce0}
.seo-plan .per{font-size:13px;color:#b9cce0}
.seo-plan a{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--cyan)}
.seo-plan a:hover{color:#fff}
.seo-note{margin-top:20px;font-size:13px;color:#8fa8c4}

/* ---------- 合作流程 ---------- */
.process-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-left:1px solid var(--line);
}
.process-cell{
  display:flex;align-items:center;gap:18px;padding:28px 26px;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:#fff;transition:background .2s ease;
}
.process-cell:hover{background:var(--soft)}
.process-cell .no{font-size:24px;font-weight:700;color:#c6d3e8;line-height:1;transition:color .2s ease}
.process-cell:hover .no{color:var(--blue)}
.process-cell b{display:block;font-size:15px;color:var(--navy)}
.process-cell small{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- 建站知识 ---------- */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.article-card .cover{aspect-ratio:16/10;overflow:hidden}
.article-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.article-card:hover .cover img{transform:scale(1.05)}
.article-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.article-body .tag{font-size:12px;font-weight:600;color:var(--blue);background:#eef3fc;border-radius:3px;padding:4px 10px;align-self:flex-start}
.article-body h3{font-size:17px;color:var(--navy);line-height:1.55;margin:14px 0 8px}
.article-body p{font-size:14px;color:var(--muted);line-height:1.85;flex:1}
.article-body .link-more{margin-top:16px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.85fr 1.3fr;gap:64px;align-items:start}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  display:flex;align-items:center;gap:16px;cursor:pointer;list-style:none;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--navy);
  transition:color .2s ease;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:hover{color:var(--blue)}
.faq-list summary .no{font-size:13px;color:#c6d3e8;font-weight:700}
.faq-list summary .plus{
  margin-left:auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted);
  transition:transform .25s ease,background .2s ease,color .2s ease;flex-shrink:0;
}
.faq-list details[open] .plus{transform:rotate(45deg);background:var(--blue);border-color:var(--blue);color:#fff}
.faq-list details p{padding:0 0 24px 30px;font-size:14px;color:var(--muted);line-height:1.95}

/* ---------- CTA 横幅 ---------- */
.cta-band{position:relative;background:var(--navy);overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-180px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(148,195,223,.16),transparent 65%);
}
.cta-inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:40px;padding:72px 0;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(24px,2.6vw,32px);color:#fff;margin-bottom:12px}
.cta-inner p{color:#b9cce0;max-width:520px;line-height:1.9}
.cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cta-tel{color:#fff;font-size:15px;display:flex;flex-direction:column;gap:2px}
.cta-tel small{color:#8fa8c4;font-size:12px}
.cta-tel b{font-size:22px;font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 页脚 ---------- */
.site-footer{background:#0f2033;color:#8fa8c4;font-size:14px}
.footer-main{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;
  padding:64px 0 48px;
}
.footer-brand .brand-copy strong{color:#fff}
.footer-brand>p{margin:18px 0;line-height:1.9;font-size:13px;max-width:300px}
.footer-chips{display:flex;gap:8px;flex-wrap:wrap}
.footer-chips span{
  font-size:12px;color:#b9cce0;border:1px solid rgba(148,195,223,.3);
  border-radius:3px;padding:4px 10px;
}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.footer-col a{display:block;color:#8fa8c4;padding:5px 0;transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-col p{line-height:2}
.footer-col .tel{font-size:20px;color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.footer-bottom{
  border-top:1px solid rgba(148,195,223,.14);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#6d85a5;
}
.footer-bottom a{color:#8fa8c4;margin-left:20px}
.footer-bottom a:hover{color:#fff}

/* ---------- 右侧悬浮咨询栏 ---------- */
.float-bar{
  position:fixed;right:14px;bottom:120px;z-index:90;
  display:flex;flex-direction:column;gap:8px;
}
.float-bar a,.float-bar button{
  width:52px;height:52px;background:#fff;border:1px solid var(--line);border-radius:6px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  box-shadow:0 6px 18px rgba(20,42,67,.1);
  transition:background .2s ease,color .2s ease;color:var(--ink);
}
.float-bar svg{width:20px;height:20px;stroke:currentColor}
.float-bar span{font-size:10px;line-height:1;color:currentColor}
.float-bar a:hover,.float-bar button:hover{background:var(--blue);border-color:var(--blue);color:#fff}
#backTop{opacity:0;pointer-events:none;transition:opacity .25s ease,background .2s ease,color .2s ease}
#backTop.show{opacity:1;pointer-events:auto}

/* ---------- 移动端底部咨询条 ---------- */
.mobile-contact{display:none}

/* ---------- 滚动显现 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ============================================================
   内页组件
   ============================================================ */

/* ---------- 内页页头（深蓝横幅 + 面包屑） ---------- */
.page-hero{
  position:relative;background:var(--navy);color:#fff;overflow:hidden;
  padding:64px 0 72px;
}
.page-hero::after{
  content:"";position:absolute;right:-160px;top:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(148,195,223,.14),transparent 65%);
}
.page-hero.about-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/about-office-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.about-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.52) 0%,rgba(15,32,51,.34) 50%,rgba(15,32,51,.08) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.insights-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/insights-strategy-banner-v3-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.insights-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.5) 0%,rgba(15,32,51,.32) 51%,rgba(15,32,51,.07) 73%,rgba(15,32,51,.02) 100%);
}
.page-hero.cases-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/cases-client-review-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.cases-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.52) 0%,rgba(15,32,51,.34) 50%,rgba(15,32,51,.08) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.solution-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/website-solution-strategy-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.solution-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.5) 0%,rgba(15,32,51,.32) 50%,rgba(15,32,51,.07) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.process-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/service-process-workflow-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.process-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.52) 0%,rgba(15,32,51,.34) 50%,rgba(15,32,51,.08) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.website-design-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/website-design-production-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.website-design-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.5) 0%,rgba(15,32,51,.32) 50%,rgba(15,32,51,.07) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.seo-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/seo-growth-analysis-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.seo-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.51) 0%,rgba(15,32,51,.33) 50%,rgba(15,32,51,.08) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero.tiktok-hero{
  background-color:var(--navy);
  background-image:url("https://home.tutuchuhai.com/wp-content/uploads/2026/09/tiktok-content-operations-banner-v2-1.jpg");
  background-position:center center;background-size:cover;background-repeat:no-repeat;
}
.page-hero.tiktok-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,32,51,.52) 0%,rgba(15,32,51,.35) 50%,rgba(15,32,51,.09) 74%,rgba(15,32,51,.02) 100%);
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#8fa8c4;margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:#8fa8c4}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-style:normal;opacity:.5}
.page-hero .sec-eyebrow{color:var(--cyan)}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.3;max-width:720px}
.page-hero-sub{margin-top:16px;max-width:640px;font-size:16px;line-height:1.9;color:#c8d9ec}
.page-hero-ctas{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.page-hero-points{display:flex;gap:10px 26px;margin-top:34px;flex-wrap:wrap;font-size:14px;color:#c2d4e8}
.page-hero-points span{display:inline-flex;align-items:center;gap:8px}
.page-hero-points svg{width:15px;height:15px;stroke:var(--cyan);flex-shrink:0}

/* ---------- 编号阶段卡（4 列） ---------- */
.stage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stage-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;position:relative;transition:transform .25s ease,box-shadow .25s ease;
}
.stage-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.stage-card .no{font-size:30px;font-weight:700;color:#dbe4f2;line-height:1}
.stage-card h3{font-size:17px;color:var(--navy);margin:14px 0 8px}
.stage-card p{font-size:13px;color:var(--muted);line-height:1.85;margin-bottom:14px}
.stage-card b{
  display:inline-block;font-size:13px;color:var(--blue);background:#eef3fc;
  border-radius:3px;padding:4px 12px;font-weight:600;
}

/* ---------- 深蓝区：方法维度行 ---------- */
.discipline-row{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.discipline-row>div{
  background:rgba(255,255,255,.06);border:1px solid rgba(148,195,223,.22);
  border-radius:var(--radius);padding:20px 14px;text-align:center;
  transition:background .2s ease,transform .2s ease;
}
.discipline-row>div:hover{background:rgba(255,255,255,.12);transform:translateY(-4px)}
.discipline-row span{display:block;font-size:12px;color:var(--cyan);font-weight:700;letter-spacing:.08em}
.discipline-row b{display:block;font-size:16px;color:#fff;margin-top:8px;font-weight:600}

/* ---------- 交付清单网格 ---------- */
.deliverable-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.deliverable-grid article{
  display:flex;align-items:center;gap:16px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.deliverable-grid article:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.deliverable-grid .check{
  flex-shrink:0;width:40px;height:40px;border-radius:50%;background:#eef3fc;
  display:flex;align-items:center;justify-content:center;
}
.deliverable-grid .check svg{width:18px;height:18px;stroke:var(--blue);fill:none;stroke-width:2;stroke-linecap:round}
.deliverable-grid small{display:block;font-size:12px;color:var(--muted);letter-spacing:.06em}
.deliverable-grid h3{font-size:15px;color:var(--navy);font-weight:600;margin-top:2px}

/* ---------- 通用特性卡（图标 + 标题 + 描述） ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-grid.cols-2{grid-template-columns:1fr 1fr}
.feature-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.feature-card .fi{
  width:48px;height:48px;border-radius:8px;background:#eef3fc;margin-bottom:18px;
  display:flex;align-items:center;justify-content:center;
}
.feature-card .fi svg{width:24px;height:24px;stroke:var(--blue);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:17px;color:var(--navy);margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- 图文分栏（通用） ---------- */
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-grid .media{border-radius:8px;overflow:hidden;box-shadow:0 24px 60px rgba(15,32,51,.14)}
.split-list{display:flex;flex-direction:column;gap:0}
.split-list .why-item:first-child{padding-top:0}

/* ---------- 建站方案：适用项目 ---------- */
.best-fit-section{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#f5f8fc 0%,#edf3fa 100%);
}
.best-fit-section::before{
  content:"";position:absolute;right:-180px;top:-220px;width:520px;height:520px;
  border:1px solid rgba(36,88,199,.08);border-radius:50%;
  box-shadow:0 0 0 72px rgba(36,88,199,.025),0 0 0 144px rgba(36,88,199,.018);
  pointer-events:none;
}
.best-fit-layout{
  position:relative;z-index:1;display:grid;
  grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:28px;align-items:stretch;
}
.best-fit-intro{
  position:relative;isolation:isolate;overflow:hidden;min-height:432px;
  padding:48px;border-radius:12px;background:linear-gradient(145deg,#172c49 0%,#203f68 100%);
  box-shadow:0 22px 52px rgba(15,32,51,.16);display:flex;flex-direction:column;align-items:flex-start;
}
.best-fit-intro::after{
  content:"";position:absolute;z-index:-1;right:-72px;bottom:-92px;width:260px;height:260px;
  border:52px solid rgba(100,190,229,.1);border-radius:50%;
}
.best-fit-intro .sec-eyebrow{color:var(--cyan);margin-bottom:18px}
.best-fit-intro h2{max-width:450px;font-size:clamp(27px,2.65vw,36px);line-height:1.35;color:#fff}
.best-fit-intro>p:not(.sec-eyebrow){max-width:460px;margin-top:18px;color:#c5d5e7;font-size:15px;line-height:1.9}
.best-fit-intro .btn{margin-top:auto}
.best-fit-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.best-fit-card{
  position:relative;min-height:133px;padding:24px 24px 22px;border:1px solid rgba(179,196,216,.72);
  border-radius:10px;background:rgba(255,255,255,.92);box-shadow:0 8px 24px rgba(15,32,51,.045);
  display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.best-fit-card:hover{transform:translateY(-4px);border-color:rgba(36,88,199,.32);box-shadow:0 16px 34px rgba(15,32,51,.1)}
.best-fit-icon{
  width:38px;height:38px;border-radius:9px;background:#edf3ff;color:var(--blue);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.best-fit-icon svg{width:17px;height:17px}
.best-fit-index{position:absolute;right:20px;top:19px;color:#9bacc0;font-size:12px;font-weight:700;letter-spacing:.12em}
.best-fit-card h3{font-size:17px;line-height:1.55;color:var(--navy)}

/* ---------- 对比表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.compare-table{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
.compare-table th,.compare-table td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--navy);color:#fff;font-weight:600;font-size:14px;white-space:nowrap}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover{background:var(--soft)}
.compare-table td:first-child{font-weight:600;color:var(--navy);white-space:nowrap}
.compare-table .yes{color:var(--blue);font-weight:700}
.compare-table .no{color:#b3bfce}

/* ---------- 9 阶段流程卡片 ---------- */
.timeline{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
  margin:0;counter-reset:process-step;
}
.timeline-item{
  --phase-color:var(--blue);
  position:relative;min-height:250px;padding:28px 26px 24px;
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:8px;
  box-shadow:0 8px 24px rgba(20,42,67,.055);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.timeline-item::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--phase-color);
}
.timeline-item::after{
  counter-increment:process-step;content:counter(process-step,decimal-leading-zero);
  position:absolute;right:18px;top:12px;
  font-size:54px;font-weight:700;line-height:1;color:rgba(36,88,199,.055);
  font-variant-numeric:tabular-nums;pointer-events:none;
}
.timeline-item:nth-child(n+4):nth-child(-n+5){--phase-color:#3f74c7}
.timeline-item:nth-child(n+6):nth-child(-n+7){--phase-color:#247f9a}
.timeline-item:nth-child(n+8){--phase-color:var(--navy)}
.timeline-item:hover{
  transform:translateY(-5px);border-color:#c7d5e8;
  box-shadow:0 18px 42px rgba(20,42,67,.12);
}
.timeline-item .t-head{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.timeline-item .t-no{
  display:inline-flex;align-items:center;min-height:28px;padding:5px 10px;
  border-radius:3px;background:color-mix(in srgb,var(--phase-color) 10%,white);
  font-size:12px;font-weight:700;color:var(--phase-color);letter-spacing:.055em;
}
.timeline-item h3{font-size:21px;color:var(--navy)}
.timeline-item>p{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.85;flex:1}
.t-meta{display:block;margin-top:22px;max-width:none}
.t-meta>div{
  min-height:74px;padding:14px 16px;background:var(--soft);
  border-left:3px solid var(--phase-color);border-radius:0 var(--radius) var(--radius) 0;
  font-size:13px;line-height:1.65;
}
.t-meta b{display:block;font-size:12px;color:var(--phase-color);letter-spacing:.08em;margin-bottom:4px}
.t-meta span{color:var(--ink);font-weight:600}

/* ---------- 案例卡片 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-cover{aspect-ratio:16/9;position:relative;display:flex;align-items:flex-end;padding:20px;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,#2c5a8f 100%)}
.case-cover.alt{background:linear-gradient(135deg,#16324e 0%,#2458c7 100%)}
.case-cover.plain{background:linear-gradient(135deg,#1d3a5f 0%,#142a43 100%)}
.case-cover .industry{
  font-size:12px;color:#cfe0f4;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.25);border-radius:3px;padding:4px 10px;
}
.case-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.case-body h3{font-size:17px;color:var(--navy);margin-bottom:10px}
.case-body>p{font-size:13px;color:var(--muted);line-height:1.85;flex:1}
.case-results{display:flex;gap:10px 24px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);flex-wrap:wrap}
.case-results b{display:block;font-size:20px;color:var(--blue);font-variant-numeric:tabular-nums;line-height:1.2}
.case-results span{font-size:12px;color:var(--muted)}

/* ---------- 文章列表（横向大卡） ---------- */
.article-list{display:flex;flex-direction:column;gap:20px}
.article-row{
  display:grid;grid-template-columns:300px 1fr;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.article-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.article-row .cover{min-height:190px}
.article-row .cover img{width:100%;height:100%;object-fit:cover}
.article-row .article-body{padding:26px 30px}
.article-row .meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted)}
.article-row h3{font-size:19px;margin:10px 0 8px}
.article-row h3 a{color:var(--navy)}
.article-row h3 a:hover{color:var(--blue)}

/* ---------- 散文排版（隐私政策 / 文章正文） ---------- */
.prose{max-width:820px}
.prose h2{font-size:22px;color:var(--navy);margin:40px 0 14px;padding-top:8px}
.prose h2:first-child{margin-top:0;padding-top:0}
.prose h3{font-size:17px;color:var(--navy);margin:28px 0 10px}
.prose p{font-size:15px;color:var(--ink);line-height:2;margin-bottom:14px}
.prose ul{list-style:disc;padding-left:22px;margin-bottom:16px}
.prose li{font-size:15px;color:var(--ink);line-height:2;margin-bottom:4px}
.prose strong{color:var(--navy)}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.3fr;gap:48px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:16px}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;display:flex;gap:18px;align-items:flex-start;
}
.info-card .fi{
  flex-shrink:0;width:46px;height:46px;border-radius:8px;background:#eef3fc;
  display:flex;align-items:center;justify-content:center;
}
.info-card .fi svg{width:22px;height:22px;stroke:var(--blue);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.info-card h3{font-size:15px;color:var(--navy);margin-bottom:4px}
.info-card p{font-size:14px;color:var(--muted);line-height:1.8}
.info-card .big{font-size:20px;color:var(--navy);font-weight:700;font-variant-numeric:tabular-nums}

.contact-form{
  background:#fff;border:1px solid var(--line);border-radius:8px;
  padding:40px 42px;box-shadow:var(--shadow);
}
.contact-form h2{font-size:22px;color:var(--navy);margin-bottom:6px}
.contact-form>p{font-size:14px;color:var(--muted);margin-bottom:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:var(--navy)}
.field label em{font-style:normal;color:#d33;margin-left:2px}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius);
  font:inherit;font-size:14px;color:var(--ink);background:#fff;width:100%;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:120px;padding:12px 14px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(36,88,199,.12);
}
.field select{
  appearance:none;-webkit-appearance:none;
  background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%23536376' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  padding-right:36px;
}
.form-foot{display:flex;align-items:center;gap:18px;margin-top:24px;flex-wrap:wrap}
.form-note{font-size:12px;color:var(--muted);line-height:1.7;flex:1;min-width:220px}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.milestone-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.milestone{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;text-align:center;
}
.milestone b{display:block;font-size:26px;color:var(--blue);font-variant-numeric:tabular-nums}
.milestone span{font-size:13px;color:var(--muted)}

/* ---------- 提示框 ---------- */
.note-box{
  background:#eef3fc;border-left:4px solid var(--blue);border-radius:0 var(--radius) var(--radius) 0;
  padding:20px 24px;font-size:14px;color:var(--ink);line-height:1.9;
}
.note-box b{color:var(--navy)}

/* ---------- 感谢页 / 404 ---------- */
.state-panel{max-width:640px;margin:0 auto;text-align:center;padding:110px 0}
.state-panel .state-icon{
  width:84px;height:84px;border-radius:50%;background:#eef3fc;margin:0 auto 28px;
  display:flex;align-items:center;justify-content:center;
}
.state-panel .state-icon svg{width:40px;height:40px;stroke:var(--blue);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.state-panel h1{font-size:clamp(26px,3vw,34px);color:var(--navy);margin-bottom:14px}
.state-panel p{color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:32px}
.state-panel .btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 主导航当前页 ---------- */
.main-nav>a[aria-current="page"],.nav-dropdown a[aria-current="page"],.nav-menu.is-current .nav-menu-trigger{color:var(--blue)}
.main-nav>a[aria-current="page"]::after,.nav-menu.is-current .nav-menu-trigger::after{width:100%}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-burger{display:flex}
  .header-actions .btn{display:none}
  .why-grid{grid-template-columns:1fr;gap:40px}
  .seo-band-grid{grid-template-columns:1fr;gap:40px}
  .faq-grid{grid-template-columns:1fr;gap:36px}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px}
  /* 内页 */
  .stage-grid{grid-template-columns:1fr 1fr}
  .feature-grid,.feature-grid.cols-4{grid-template-columns:1fr 1fr}
  .discipline-row{grid-template-columns:repeat(4,1fr)}
  .split-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .best-fit-layout{grid-template-columns:1fr;gap:20px}
  .best-fit-intro{min-height:auto;padding:40px}
  .best-fit-intro .btn{margin-top:28px}
  .deliverable-grid,.case-grid{grid-template-columns:1fr 1fr}
  .milestone-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .audience-grid,.pricing-grid,.article-grid{grid-template-columns:1fr 1fr}
  .service-grid{grid-template-columns:1fr}
  .hero-stats-inner{grid-template-columns:1fr 1fr}
  .stat-cell:nth-child(3)::before{display:none}
  .stat-cell{padding:26px 16px}
  .process-grid{grid-template-columns:1fr 1fr}
  .topbar{display:none}
  .hero{min-height:calc(100vh - var(--header-h))}
  /* 内页 */
  .page-hero{padding:48px 0 56px}
  .page-hero.about-hero{background-position:66% center}
  .page-hero.insights-hero{background-position:67% center}
  .page-hero.cases-hero{background-position:67% center}
  .page-hero.solution-hero{background-position:67% center}
  .page-hero.process-hero{background-position:68% center}
  .page-hero.website-design-hero{background-position:67% center}
  .page-hero.seo-hero{background-position:68% center}
  .page-hero.tiktok-hero{background-position:70% center}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-row{grid-template-columns:1fr}
  .article-row .cover{aspect-ratio:16/8;min-height:0}
}
@media (max-width:767px){
  body{font-size:14px}
  .container{width:calc(100% - 36px)}
  .hero-inner{padding:64px 0 120px}
  .hero-ctas .btn{width:100%}
  .hero-points{gap:12px 20px}
  .audience-grid,.pricing-grid,.article-grid,.process-grid{grid-template-columns:1fr}
  .price-intro{min-height:0}
  .cta-inner{padding:52px 0}
  .footer-main{grid-template-columns:1fr;gap:32px;padding:48px 0 36px}
  .float-bar{display:none}
  .mobile-contact{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:95;
    background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(20,42,67,.08);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-contact a{
    flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
    min-height:56px;font-size:14px;font-weight:600;color:var(--blue);
  }
  .mobile-contact a svg{width:17px;height:17px;stroke:currentColor}
  .mobile-contact a + a{border-left:1px solid var(--line)}
  .site-footer{padding-bottom:64px}
  /* 内页 */
  .stage-grid,.feature-grid,.feature-grid.cols-2,.feature-grid.cols-4,
  .deliverable-grid,.case-grid,.form-grid{grid-template-columns:1fr}
  .discipline-row{grid-template-columns:1fr 1fr}
  .milestone-row{grid-template-columns:1fr 1fr}
  .contact-form{padding:28px 22px}
  .state-panel{padding:72px 0}
  .page-hero-ctas .btn{width:100%}
  .page-hero.about-hero{background-position:72% center}
  .page-hero.about-hero::before{background:rgba(15,32,51,.84)}
  .page-hero.insights-hero{background-position:74% center}
  .page-hero.insights-hero::before{background:rgba(15,32,51,.86)}
  .page-hero.cases-hero{background-position:74% center}
  .page-hero.cases-hero::before{background:rgba(15,32,51,.86)}
  .page-hero.solution-hero{background-position:75% center}
  .page-hero.solution-hero::before{background:rgba(15,32,51,.87)}
  .page-hero.process-hero{background-position:75% center}
  .page-hero.process-hero::before{background:rgba(15,32,51,.87)}
  .page-hero.website-design-hero{background-position:75% center}
  .page-hero.website-design-hero::before{background:rgba(15,32,51,.87)}
  .page-hero.seo-hero{background-position:76% center}
  .page-hero.seo-hero::before{background:rgba(15,32,51,.87)}
  .page-hero.tiktok-hero{background-position:78% center}
  .page-hero.tiktok-hero::before{background:rgba(15,32,51,.88)}
  .best-fit-intro{padding:32px 24px}
  .best-fit-options{grid-template-columns:1fr;gap:12px}
  .best-fit-card{min-height:116px;padding:20px}
  .best-fit-index{right:18px;top:17px}
  .best-fit-intro .btn{width:100%}
  .timeline{grid-template-columns:1fr;gap:16px}
  .timeline-item{min-height:0;padding:25px 22px 22px}
}

/* ============================================================
   Bricks 桥接层 v2 —— 按 live DOM 对齐源站视觉（2026-09-28）
   依据：computed style 实测（导航蓝字/页脚深字压深底/Logo 10.9px）
   ============================================================ */

/* --- 0. 全局兜底 --- */
.brxe-heading{margin:0}
.bricks-button{text-decoration:none;border:none}

/* --- 1. 品牌区（源: .brand-mark 44px + .brand-copy strong/small）--- */
.site-header .brand img,
.site-footer .brand img{height:44px !important;width:auto !important;object-fit:contain;flex-shrink:0}
.brand-copy .brand-title{font-size:19px;font-weight:700;letter-spacing:.05em;color:var(--navy)}
.brand-copy .brand-sub{font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--muted)}
.site-footer .brand-copy .brand-title{color:#fff}

/* --- 2. 主导航（源: .main-nav>a 全套，含下划线/当前页）---
   注：带下拉的父项链接包在 .brx-submenu-toggle 里，不是 li 的直接子级，需单独罩住 */
.site-header .bricks-nav-menu > li > a,
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a{
  font-size:15px;font-weight:400;color:var(--ink);position:relative;
  padding:10px 12px;white-space:nowrap;background:transparent;
  transition:color .2s ease;
}
.site-header .bricks-nav-menu > li > a:hover,
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a:hover{color:var(--blue)}
.site-header .bricks-nav-menu > li > a::after,
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--blue);transition:width .25s ease;
}
.site-header .bricks-nav-menu > li > a:hover::after,
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a:hover::after{width:100%}
.site-header .bricks-nav-menu > li > a[aria-current="page"],
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a[aria-current="page"]{color:var(--blue)}
.site-header .bricks-nav-menu > li > a[aria-current="page"]::after,
.site-header .bricks-nav-menu > li > .brx-submenu-toggle > a[aria-current="page"]::after{width:100%}
.site-header .brx-submenu-toggle svg{color:var(--muted)}

/* --- 3. 下拉面板（源: .nav-dropdown 视觉；显示/隐藏机制交给 Bricks）--- */
.site-header .bricks-nav-menu .sub-menu{
  min-width:176px;padding:8px;background:#fff;
  border:1px solid var(--line);border-radius:8px;
  box-shadow:0 14px 38px rgba(20,42,67,.16);
}
.site-header .bricks-nav-menu .sub-menu a,
.site-header .bricks-nav-menu .sub-menu .brx-submenu-toggle a{
  display:block;padding:11px 14px;border-radius:5px;color:var(--ink);
  font-size:14px;font-weight:400;line-height:1.45;white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.site-header .bricks-nav-menu .sub-menu a:hover,
.site-header .bricks-nav-menu .sub-menu a:focus-visible{background:#eef3fc;color:var(--blue)}

/* --- 4. CTA 按钮（.btn 视觉已在皮肤层，这里压掉 bricks-button 干扰）--- */
.header-actions .bricks-button{
  background:var(--blue);color:#fff;font-size:14px;font-weight:500;
  border-radius:var(--radius);padding:0 20px;height:38px;
  display:inline-flex;align-items:center;line-height:1;
}
.header-actions .bricks-button:hover{background:#1d49ab;color:#fff}

/* --- 5. 移动端抽屉（源: .mobile-tray 白底深字）--- */
.bricks-mobile-menu-wrapper{background:#fff}
.bricks-mobile-menu a{
  display:block;padding:15px 4px;font-size:16px;font-weight:600;
  color:var(--ink);border-bottom:1px solid var(--soft);
}
.bricks-mobile-menu a:hover{color:var(--blue)}
.bricks-mobile-menu .sub-menu a{
  font-size:14px;font-weight:400;color:var(--muted);
  padding:12px 4px 12px 24px;
}

/* --- 6. 页脚（源: .footer-col a / p / chips；链接亮色可读）--- */
.site-footer .bricks-nav-menu a{
  display:block;color:#8fa8c4;padding:5px 0;font-size:14px;font-weight:400;
  transition:color .2s ease;
}
.site-footer .bricks-nav-menu a:hover{color:#fff}
.site-footer .footer-col .brxe-heading{font-size:15px;font-weight:600;color:#fff;margin:0 0 18px}
.footer-brand p{margin:18px 0;line-height:1.9;font-size:13px;max-width:300px}
.footer-chips .brxe-heading{
  font-size:12px;color:#b9cce0;border:1px solid rgba(148,195,223,.3);
  border-radius:3px;padding:4px 10px;
}