/* ===== home2 新首页 v4（2026-09-01，gsv4- 作用域，确认后可整体摘除） ===== */
.gs-page .gsv4{--blue:#2563eb;--ink:#1746a2;--deep:#0f2a5c;--text:#1f2733;--body:#4b5563;--muted:#6b7688;--border:#e5eaf1;--line:#dbe4f0;--surface:#f7f9fc;--tint:#eef4ff;
  color:var(--body);font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;font-size:16px;line-height:1.78;-webkit-font-smoothing:antialiased}
.gs-page .gsv4 *{box-sizing:border-box}
.gs-page .gsv4 h1,.gs-page .gsv4 h2,.gs-page .gsv4 h3,.gs-page .gsv4 h4{margin:0;padding:0;border:0;color:var(--text);font-weight:600;letter-spacing:-.01em;line-height:1.4}
.gs-page .gsv4 p{margin:0}
.gs-page .gsv4 ul{margin:0;padding:0;list-style:none}
.gs-page .gsv4 a{text-decoration:none;color:inherit}
.gs-page .gsv4 img{max-width:100%;height:auto;display:block}
.gs-page .gsv4 b,.gs-page .gsv4 strong{font-weight:600;color:var(--text)}
.gs-page .gsv4-wrap{width:min(1140px,calc(100% - 40px));margin:0 auto}
.gs-page .gsv4-bleed{width:100vw;margin-left:calc(50% - 50vw)}
.gs-page .gsv4-sec{padding:clamp(48px,5.4vw,78px) 0}
.gs-page .gsv4-sec-alt{background:var(--surface)}
.gs-page .gsv4-hd{max-width:740px;margin:0 auto clamp(30px,3.6vw,46px);text-align:center}
.gs-page .gsv4-hd h2{font-size:clamp(23px,2.8vw,32px);text-wrap:balance}
.gs-page .gsv4-hd p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);text-wrap:pretty}
.gs-page .gsv4-note{margin-top:14px;font-size:12.5px;line-height:1.75;color:var(--muted)}
.gs-page .gsv4-more{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color .18s ease,border-color .18s ease}
.gs-page .gsv4-more:hover{color:var(--blue);border-color:var(--blue)}
.gs-page .gsv4-center{text-align:center}
.gs-page .gsv4-shell{padding:clamp(44px,5.5vw,80px) 0 clamp(56px,7vw,96px)}

/* ---------- 1. Hero ---------- */
.gs-page .gsv4-hero{position:relative;margin-top:calc(-1 * clamp(44px,5.5vw,80px));padding:clamp(54px,6.5vw,92px) 0 clamp(52px,6vw,84px);
  background:radial-gradient(760px 380px at 84% -12%,rgba(37,99,235,.10),transparent 66%),radial-gradient(560px 300px at 6% 108%,rgba(37,99,235,.06),transparent 62%),linear-gradient(180deg,#fff 0%,var(--surface) 100%)}
.gs-page .gsv4-hero-inner{max-width:900px;margin:0 auto;text-align:center}
.gs-page .gsv4-eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--ink);background:#fff;border:1px solid #c7d7f7;border-radius:999px;padding:6px 18px;letter-spacing:0}
.gs-page .gsv4-eyebrow span[lang="en"]{letter-spacing:.1em;margin-left:.35em}
.gs-page .gsv4-hero h1{margin-top:22px;font-size:clamp(29px,4.2vw,50px);line-height:1.3;text-wrap:balance}
.gs-page .gsv4-hero h1 em{font-style:normal;color:var(--blue)}
.gs-page .gsv4-hero-sub{margin:20px auto 0;max-width:700px;font-size:16.5px;line-height:1.95;color:#4b5563;text-wrap:pretty}
.gs-page .gsv4-hero-sub .l{display:block}
.gs-page .gsv4-hero-sub strong{color:var(--ink)}
.gs-page .gsv4-cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.gs-page .gsv4-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:16px;font-weight:600;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease}
.gs-page .gsv4-btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.26)}
.gs-page .gsv4-btn-primary:hover{background:var(--ink);transform:translateY(-2px)}
.gs-page .gsv4-btn-ghost{background:#fff;color:var(--ink);border:1px solid #c7d7f7}
.gs-page .gsv4-btn-ghost:hover{border-color:var(--blue);transform:translateY(-2px)}
.gs-page .gsv4-btn-sm{padding:11px 24px;font-size:15px}
.gs-page .gsv4-cta-note{margin-top:16px;font-size:13px;line-height:1.8;color:var(--muted)}
.gs-page .gsv4-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:16px;overflow:hidden;margin-top:clamp(34px,4.2vw,52px);box-shadow:0 12px 36px rgba(23,70,162,.06)}
.gs-page .gsv4-stat{background:#fff;padding:24px 12px;text-align:center}
.gs-page .gsv4-stat b{display:block;font-size:clamp(23px,2.5vw,32px);font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.gs-page .gsv4-stat span{display:block;margin-top:5px;font-size:13px;color:var(--muted)}

/* ---------- 2. 信任带 ---------- */
.gs-page .gsv4-trust{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:26px 0}
.gs-page .gsv4-trust-in{display:flex;align-items:center;justify-content:center;gap:12px 18px;flex-wrap:wrap;font-size:14.5px;color:var(--body);text-align:center}
.gs-page .gsv4-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:999px;background:linear-gradient(135deg,#eef4ff,#e3edff);border:1px solid #c7d7f7;color:var(--ink);font-weight:600;font-size:14px}

/* ---------- 3. 案例 ---------- */
.gs-page .gsv4-cases{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.gs-page .gsv4-case{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 2px 10px rgba(16,24,40,.04)}
.gs-page .gsv4-case-img{border-bottom:1px solid var(--border);background:var(--surface)}
.gs-page .gsv4-case-img img{width:100%;aspect-ratio:21/10;object-fit:cover;object-position:top;border-radius:0}
.gs-page .gsv4-case-body{padding:24px 26px 22px}
.gs-page .gsv4-tag{display:inline-block;font-size:12.5px;color:var(--ink);background:var(--tint);border:1px solid #dbe8ff;border-radius:999px;padding:3px 12px}
.gs-page .gsv4-case h3{margin-top:12px;font-size:19px}
.gs-page .gsv4-case-nums{display:flex;gap:26px;flex-wrap:wrap;margin-top:16px;padding:16px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.gs-page .gsv4-case-num b{display:block;font-size:clamp(21px,2.1vw,27px);font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.25}
.gs-page .gsv4-case-num span{display:block;margin-top:2px;font-size:12.5px;color:var(--muted)}
.gs-page .gsv4-case-meta{margin-top:14px;font-size:13.5px;line-height:1.8;color:var(--muted)}
.gs-page .gsv4-case-sum{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--body)}
.gs-page .gsv4-detail{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}
.gs-page .gsv4-detail>summary{cursor:pointer;list-style:none;font-size:14px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:6px}
.gs-page .gsv4-detail>summary::-webkit-details-marker{display:none}
.gs-page .gsv4-detail>summary::before{content:"▸";color:var(--blue);font-size:12px}
.gs-page .gsv4-detail[open]>summary::before{content:"▾"}
.gs-page .gsv4-detail ul{margin-top:10px;padding-left:1.35em;list-style:disc;font-size:14px;line-height:2;color:var(--body)}
.gs-page .gsv4-caselist{margin-top:22px;border-top:1px solid var(--border)}
.gs-page .gsv4-caselist a{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;padding:16px 4px;border-bottom:1px solid var(--border);transition:background .18s ease,padding-left .18s ease}
.gs-page .gsv4-caselist a:hover{background:var(--surface);padding-left:12px}
.gs-page .gsv4-caselist b{font-size:16px;min-width:150px}
.gs-page .gsv4-caselist em{font-style:normal;font-size:13px;color:var(--ink);background:var(--tint);border:1px solid #dbe8ff;border-radius:999px;padding:2px 10px}
.gs-page .gsv4-caselist span{font-size:14px;color:var(--muted)}
.gs-page .gsv4-caselist i{font-style:normal;margin-left:auto;font-size:13.5px;color:var(--blue);font-weight:600}

/* ---------- 4. 技术体系 ---------- */
.gs-page .gsv4-chain{max-width:920px;margin:0 auto}
.gs-page .gsv4-layer{position:relative;padding:0 0 18px;border:0}
.gs-page .gsv4-layer:last-child{padding-bottom:0}
.gs-page .gsv4-layer::before{content:"";position:absolute;left:26px;top:60px;bottom:-10px;width:2px;background:linear-gradient(180deg,#c7d7f7,#dbe8ff)}
.gs-page .gsv4-layer:last-child::before{display:none}
.gs-page .gsv4-layer>summary{display:flex;align-items:center;gap:24px;flex-wrap:wrap;cursor:pointer;list-style:none}
.gs-page .gsv4-layer>summary::-webkit-details-marker{display:none}
.gs-page .gsv4-layer.is-locked>summary{cursor:default;pointer-events:none}
.gs-page .gsv4-no{flex:none;width:54px;height:54px;border-radius:16px;background:linear-gradient(135deg,#eef4ff,#dbe8ff);border:1px solid #c7d7f7;color:var(--ink);font-size:21px;font-weight:600;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}
.gs-page .gsv4-layer-hd{flex:1;min-width:0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.gs-page .gsv4-layer-hd h3{font-size:18px}
.gs-page .gsv4-layer-hd span{font-size:13.5px;color:var(--muted)}
.gs-page .gsv4-layer-thumb{margin-left:auto;width:84px;height:52px;object-fit:cover;border-radius:10px;border:1px solid var(--border);flex:none}
.gs-page .gsv4-layer>summary::after{content:"";display:none;width:9px;height:9px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg);transition:transform .2s ease}
.gs-page .gsv4-prods{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:10px;margin:14px 0 0 78px}
.gs-page .gsv4-prod{padding:13px 16px;border:1px solid var(--border);border-radius:12px;background:#fff;transition:border-color .18s ease,background .18s ease}
.gs-page .gsv4-prod:hover{border-color:#c7d7f7;background:var(--tint)}
.gs-page .gsv4-prod b{display:block;font-size:15px;color:var(--ink)}
.gs-page .gsv4-prod span{display:block;margin-top:3px;font-size:12.5px;line-height:1.65;color:var(--muted)}
.gs-page .gsv4-channels{margin:30px auto 0;max-width:920px;display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.gs-page .gsv4-channels a{padding:9px 18px;border-radius:999px;border:1px solid var(--border);background:#fff;font-size:14px;color:var(--body);transition:border-color .18s ease,color .18s ease}
.gs-page .gsv4-channels a:hover{border-color:var(--blue);color:var(--ink)}
.gs-page .gsv4-channels-label{width:100%;text-align:center;font-size:13px;color:var(--muted);margin-bottom:2px}

/* ---------- 5. 为什么选择光算（无卡片） ---------- */
.gs-page .gsv4-reasons{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;max-width:960px;margin:0 auto}
.gs-page .gsv4-reason{padding:22px 0;border-top:1px solid var(--border)}
.gs-page .gsv4-reason h3{font-size:17px;display:flex;align-items:center;gap:10px}
.gs-page .gsv4-reason h3::before{content:"";flex:none;width:8px;height:8px;border-radius:2px;background:linear-gradient(135deg,#2563eb,#60a5fa)}
.gs-page .gsv4-reason p{margin-top:8px;font-size:14.5px;line-height:1.9;color:var(--muted)}

/* ---------- 6. 流程 ---------- */
.gs-page .gsv4-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;max-width:1060px;margin:0 auto;position:relative}
.gs-page .gsv4-flow::before{content:"";position:absolute;left:10%;right:10%;top:23px;height:2px;background:linear-gradient(90deg,transparent,var(--line) 12%,var(--line) 88%,transparent);z-index:0}
.gs-page .gsv4-step{position:relative;text-align:center;padding:0 12px}
.gs-page .gsv4-step-no{position:relative;z-index:1;width:48px;height:48px;margin:0 auto 14px;border-radius:50%;background:#fff;border:2px solid #c7d7f7;color:var(--ink);font-size:18px;font-weight:600;display:flex;align-items:center;justify-content:center}
.gs-page .gsv4-step h3{font-size:15.5px;margin-bottom:8px}
.gs-page .gsv4-step ul{font-size:13px;line-height:1.9;color:var(--muted)}
.gs-page .gsv4-gua{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:clamp(34px,4vw,52px);padding-top:clamp(28px,3.4vw,42px);border-top:1px solid var(--border)}
.gs-page .gsv4-gua-item{display:flex;align-items:center;gap:14px;padding-right:14px}
.gs-page .gsv4-gua-item img{width:56px;height:56px;object-fit:cover;border-radius:12px;border:1px solid var(--border);flex:none}
.gs-page .gsv4-gua-item b{display:block;font-size:15px}
.gs-page .gsv4-gua-item span{display:block;font-size:13px;color:var(--muted);margin-top:2px}

/* ---------- 7. 团队（开放式） ---------- */
.gs-page .gsv4-team{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;max-width:940px;margin:0 auto}
.gs-page .gsv4-member{text-align:center}
.gs-page .gsv4-member img{width:132px;height:132px;object-fit:cover;border-radius:50%;margin:0 auto;border:1px solid var(--border);box-shadow:0 10px 28px rgba(23,70,162,.1)}
.gs-page .gsv4-member h3{margin-top:18px;font-size:17px}
.gs-page .gsv4-member .role{display:block;margin-top:4px;font-size:13.5px;color:var(--ink);font-weight:600}
.gs-page .gsv4-member .yrs{margin-top:10px;display:inline-block;font-size:12.5px;color:var(--muted);background:#fff;border:1px solid var(--border);border-radius:999px;padding:2px 12px}
.gs-page .gsv4-member p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--muted)}
.gs-page .gsv4-member .win{margin-top:10px;font-size:13.5px;color:var(--ink)}

/* ---------- 8. 证言 ---------- */
.gs-page .gsv4-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gs-page .gsv4-voice{background:#fff;border:1px solid var(--border);border-radius:18px;padding:24px 26px;box-shadow:0 2px 10px rgba(16,24,40,.04);display:flex;flex-direction:column}
.gs-page .gsv4-voice q{display:block;font-size:15px;line-height:1.9;color:var(--text);quotes:none}
.gs-page .gsv4-voice-head{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}
.gs-page .gsv4-voice-head img{width:46px;height:46px;object-fit:cover;border-radius:50%;flex:none}
.gs-page .gsv4-voice-head b{display:block;font-size:14.5px}
.gs-page .gsv4-voice-head span{display:block;font-size:12.5px;color:var(--muted)}

/* ---------- 9. 资讯 ---------- */
.gs-page .gsv4-news{max-width:940px;margin:0 auto}
.gs-page .gsv4-news-feat{display:block;padding:26px 28px;border:1px solid var(--border);border-radius:18px;background:#fff;box-shadow:0 2px 10px rgba(16,24,40,.04);transition:border-color .18s ease,box-shadow .18s ease}
.gs-page .gsv4-news-feat:hover{border-color:#c7d7f7;box-shadow:0 14px 36px rgba(23,70,162,.08)}
.gs-page .gsv4-news-tag{display:inline-block;font-size:12.5px;color:var(--ink);background:var(--tint);border:1px solid #dbe8ff;border-radius:999px;padding:3px 12px}
.gs-page .gsv4-news-feat h3{margin-top:12px;font-size:20px;line-height:1.5}
.gs-page .gsv4-news-feat p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--muted)}
.gs-page .gsv4-news-list{margin-top:14px}
.gs-page .gsv4-news-list a{display:flex;align-items:baseline;gap:12px;padding:14px 4px;border-bottom:1px solid var(--border);font-size:15px;transition:background .18s ease,padding-left .18s ease}
.gs-page .gsv4-news-list a:hover{background:var(--surface);padding-left:10px}
.gs-page .gsv4-news-list i{font-style:normal;flex:none;font-size:12.5px;color:var(--ink)}
.gs-page .gsv4-news-list em{font-style:normal;margin-left:auto;flex:none;font-size:12.5px;color:var(--muted)}

/* ---------- 10. FAQ ---------- */
.gs-page .gsv4-faq{max-width:840px;margin:0 auto;border-top:1px solid var(--border)}
.gs-page .gsv4-faq details{border-bottom:1px solid var(--border)}
.gs-page .gsv4-faq summary{cursor:pointer;list-style:none;padding:18px 34px 18px 4px;position:relative;font-size:16px;font-weight:600;color:var(--text);transition:color .18s ease}
.gs-page .gsv4-faq summary::-webkit-details-marker{display:none}
.gs-page .gsv4-faq summary::after{content:"";position:absolute;right:8px;top:26px;width:9px;height:9px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg);transition:transform .2s ease}
.gs-page .gsv4-faq details[open] summary{color:var(--ink)}
.gs-page .gsv4-faq details[open] summary::after{transform:rotate(225deg);top:28px}
.gs-page .gsv4-faq summary:hover{color:var(--blue)}
.gs-page .gsv4-faq-a{padding:0 40px 20px 4px;font-size:14.5px;line-height:1.95;color:var(--body)}
.gs-page .gsv4-faq-a ul{padding-left:1.2em;list-style:disc;margin-top:6px}
.gs-page .gsv4-faq-a li{margin:3px 0}

/* ---------- 11. 中部 / 结尾 CTA ---------- */
.gs-page .gsv4-inline{padding:clamp(40px,4.6vw,60px) 0}
.gs-page .gsv4-inline-in{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:28px 34px;border:1px solid #c7d7f7;border-radius:18px;background:linear-gradient(120deg,#f4f8ff,#e9f0ff)}
.gs-page .gsv4-inline-in h3{font-size:clamp(18px,2vw,22px)}
.gs-page .gsv4-inline-in p{margin-top:6px;font-size:14.5px;color:var(--muted)}
.gs-page .gsv4-final{padding:clamp(56px,6vw,88px) 0 clamp(60px,7vw,96px);margin-bottom:calc(-1 * clamp(56px,7vw,96px));background:linear-gradient(135deg,#0f2a5c 0%,#1746a2 55%,#2563eb 100%);color:#fff;text-align:center}
.gs-page .gsv4-final h2{color:#fff;font-size:clamp(24px,3vw,36px)}
.gs-page .gsv4-final p{margin-top:16px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.82)}
.gs-page .gsv4-final .gsv4-btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 30px rgba(8,20,48,.28);margin-top:30px}
.gs-page .gsv4-final .gsv4-btn-primary:hover{background:#eef4ff;transform:translateY(-2px)}
.gs-page .gsv4-final .gsv4-cta-note{color:rgba(255,255,255,.66)}
.gs-page .gsv4-final-contact{margin-top:26px;display:flex;justify-content:center;gap:10px 26px;flex-wrap:wrap;font-size:14.5px;color:rgba(255,255,255,.86)}
.gs-page .gsv4-final-contact a{border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:2px}
.gs-page .gsv4-final-contact a:hover{border-color:#fff}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .gs-page .gsv4-hero-sub{font-size:15.5px;line-height:1.85}
  .gs-page .gsv4-stats{grid-template-columns:repeat(2,1fr)}
  .gs-page .gsv4-cases{grid-template-columns:1fr;gap:20px}
  .gs-page .gsv4-layer{padding-bottom:14px}
  .gs-page .gsv4-layer::before{left:20px;top:52px;bottom:-6px}
  .gs-page .gsv4-layer>summary{gap:14px}
  .gs-page .gsv4-layer>summary::after{display:block}
  .gs-page .gsv4-no{width:42px;height:42px;font-size:17px;border-radius:13px}
  .gs-page .gsv4-layer-thumb{width:56px;height:36px}
  .gs-page .gsv4-prods{grid-template-columns:1fr;margin-left:0}
  .gs-page .gsv4-reasons{grid-template-columns:1fr;gap:0}
  .gs-page .gsv4-flow{grid-template-columns:1fr;gap:0}
  .gs-page .gsv4-flow::before{display:none}
  .gs-page .gsv4-step{text-align:left;padding:0 0 0 34px;position:relative;min-height:96px}
  .gs-page .gsv4-step::before{content:"";position:absolute;left:13px;top:44px;bottom:-8px;width:2px;background:var(--line)}
  .gs-page .gsv4-step:last-child::before{display:none}
  .gs-page .gsv4-step-no{position:absolute;left:0;top:0;margin:0;width:28px;height:28px;font-size:14px}
  .gs-page .gsv4-step h3{margin-top:2px}
  .gs-page .gsv4-team{grid-template-columns:1fr;gap:34px}
  .gs-page .gsv4-voices{grid-template-columns:1fr;gap:16px}
  .gs-page .gsv4-inline-in{padding:24px 22px}
  .gs-page .gsv4-caselist a{flex-direction:column;gap:6px}
  .gs-page .gsv4-caselist i{margin-left:0}
  .gs-page .gsv4-news-list a{flex-direction:column;gap:4px}
  .gs-page .gsv4-news-list em{margin-left:0}
}
@media(max-width:560px){
  .gs-page .gsv4-wrap{width:calc(100% - 32px)}
  .gs-page .gsv4-hero{padding-top:44px}
  .gs-page .gsv4-stats{grid-template-columns:repeat(2,1fr)}
  .gs-page .gsv4-stat{padding:18px 8px}
  .gs-page .gsv4-case-body{padding:20px 20px 18px}
  .gs-page .gsv4-case-nums{gap:18px}
  .gs-page .gsv4-gua{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){.gsv4 *,.gs-page .gsv4 *::before,.gs-page .gsv4 *::after{transition-duration:.01ms!important}}