/* roulang page: index */
:root{
      --blue:#2d6684;
      --blue-deep:#204b65;
      --blue-soft:#eaf4f8;
      --cyan:#76b6c8;
      --ink:#203544;
      --muted:#6c8190;
      --line:#d9e6ec;
      --paper:#fff;
      --bg:#f6fafb;
      --warm:#f5e4bd;
      --coral:#d98467;
      --shadow:0 16px 40px rgba(44,83,104,.09);
      --shadow-sm:0 7px 20px rgba(44,83,104,.08);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:800;color:var(--blue-deep);font-size:17px}
    .logo-mark{width:28px;height:28px;border:2px solid var(--blue);border-radius:9px;position:relative}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--blue)}
    .logo-mark:before{width:10px;height:2px;left:7px;top:8px;box-shadow:0 6px 0 var(--cyan)}
    .logo-mark:after{width:4px;height:4px;border-radius:50%;right:4px;bottom:4px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}
    .timeline-nav{display:flex;gap:7px;overflow:auto;white-space:nowrap}
    .stage{font-size:12px;padding:5px 10px;border-radius:99px;border:1px solid var(--line);color:var(--muted)}
    .stage.warm{background:#fff8e9;border-color:#edcf93;color:#986c28}
    .stage.live{background:var(--blue);border-color:var(--blue);color:#fff}
    .stage.replay{background:#edf2f6;color:#587080}
    .menu-btn{display:none;border:0;background:var(--blue-soft);color:var(--blue-deep);border-radius:8px;padding:8px 11px}
    .hero{padding:76px 0 82px;background:linear-gradient(110deg,#f8fcfd 0%,#edf7fa 62%,#f9f5ee 100%)}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.12em;color:var(--blue);font-weight:800}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.18;letter-spacing:-.04em;margin:16px 0 22px;max-width:680px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:625px}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 23px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 15px rgba(45,102,132,.2)}
    .btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--blue-deep)}
    .btn-secondary:hover{background:var(--blue-soft);border-color:var(--cyan)}
    .trust-line{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .trust-line span:before{content:"•";color:var(--coral);margin-right:7px}
    .index-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:27px;box-shadow:var(--shadow);position:relative}
    .panel-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:6px}
    .panel-head strong{font-size:16px}.panel-note{font-size:12px;color:var(--muted)}
    .index-item{display:grid;grid-template-columns:38px 1fr auto;gap:12px;padding:18px 0;border-bottom:1px solid #edf2f4;align-items:start}
    .index-item:last-child{border:0;padding-bottom:4px}
    .num{color:var(--blue);font-weight:800;font-size:13px;padding-top:3px}
    .index-item h3{font-size:15px;margin:0 0 4px}.index-item p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}
    .tag{display:inline-flex;align-items:center;white-space:nowrap;border-radius:99px;padding:3px 9px;font-size:11px;background:var(--blue-soft);color:var(--blue)}
    .tag.warm{background:#fff4dc;color:#9a702e}.tag.replay{background:#eef1f4;color:#657887}
    .section{padding:92px 0}.section.alt{background:#edf6f8}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:35px}
    .section-head h2{font-size:clamp(27px,3.4vw,40px);line-height:1.28;margin:9px 0 0;letter-spacing:-.025em}
    .section-head p{max-width:530px;color:var(--muted);margin:0;font-size:15px}
    .pain-wrap{display:grid;grid-template-columns:1fr 1.35fr;gap:60px;align-items:start}
    .pain-intro{font-size:20px;line-height:1.55;font-weight:700}
    .pain-list{border-left:2px solid var(--cyan)}
    .pain-item{padding:5px 0 23px 25px;position:relative}
    .pain-item:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--coral);left:-6px;top:12px}
    .pain-item h3{font-size:17px;margin:0 0 5px}.pain-item p{font-size:14px;color:var(--muted);margin:0}
    .flow{display:grid;grid-template-columns:repeat(4,1fr);position:relative;gap:16px}
    .flow:before{content:"";position:absolute;top:26px;left:8%;right:8%;height:1px;background:#b8d4de}
    .flow-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px 19px;box-shadow:var(--shadow-sm)}
    .flow-no{display:flex;width:29px;height:29px;border-radius:50%;align-items:center;justify-content:center;background:var(--blue);color:#fff;font-weight:800;font-size:12px;margin-bottom:17px;position:relative}
    .flow-card h3{font-size:16px;margin-bottom:6px}.flow-card p{font-size:13px;color:var(--muted);margin:0}.flow-card .tag{margin-bottom:11px}
    .result-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
    .feature-card,.metric-stack>div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
    .feature-card{padding:29px}.feature-card h3{font-size:24px;margin:18px 0 10px}.feature-card p{color:var(--muted);font-size:14px;max-width:650px}
    .meta{font-size:12px;color:var(--muted);display:flex;gap:15px;flex-wrap:wrap}.metric-stack{display:grid;gap:22px}.metric-stack>div{padding:24px}.metric{font-size:34px;color:var(--blue-deep);font-weight:800;line-height:1.2}.metric-label{font-size:13px;color:var(--muted);margin-top:5px}
    .feedback{background:#fff;border:1px solid var(--line);border-radius:18px;padding:35px 40px;box-shadow:var(--shadow-sm);max-width:800px}
    .quote{font-size:24px;line-height:1.55;margin:0 0 18px;color:var(--blue-deep)}.quote:before{content:"“";font-size:54px;color:var(--cyan);vertical-align:-18px;margin-right:7px}
    .feedback small{color:var(--muted)}
    .cta{padding:45px 50px;background:var(--blue-soft);border:1px solid #c8e0e8;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:28px;margin:8px 0 7px}.cta p{margin:0;color:var(--muted);font-size:14px}.cta-link{color:var(--blue-deep);font-size:14px;font-weight:700;border-bottom:1px solid var(--cyan);padding-bottom:3px}
    .faq-list{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line);background:#fff}
    .faq-q{width:100%;border:0;background:transparent;text-align:left;padding:21px 20px;display:flex;justify-content:space-between;color:var(--ink);font-weight:700}
    .faq-q span:last-child{font-size:22px;color:var(--blue);line-height:1;transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;padding:0 20px;transition:max-height .25s,padding .25s}.faq-item.open .faq-a{max-height:150px;padding:0 20px 20px}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .site-footer{background:#eaf2f5;padding:42px 0 25px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:30px}.footer-brand{font-size:18px;font-weight:800;color:var(--blue-deep);margin-bottom:10px}.footer-grid p,.footer-grid a{font-size:13px;color:var(--muted)}.footer-grid h3{font-size:14px;margin:0 0 12px;color:var(--ink)}.footer-links{display:flex;flex-direction:column;gap:5px}.footer-grid a:hover{color:var(--blue)}.copyright{border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:15px}
    :focus-visible{outline:3px solid rgba(118,182,200,.55);outline-offset:3px}
    @media(max-width:992px){.hero-grid{gap:35px}.flow{grid-template-columns:repeat(2,1fr)}.flow:before{display:none}.pain-wrap{gap:30px}}
    @media(max-width:768px){.container{width:min(calc(100% - 32px),var(--container))}.nav-wrap{height:68px;gap:12px}.menu-btn{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:16px;right:16px;top:74px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:12px;padding:10px;flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.timeline-nav{order:3;width:100%}.nav-wrap{flex-wrap:wrap;height:auto;padding:12px 0}.hero{padding:55px 0 60px}.hero-grid,.pain-wrap,.result-grid{grid-template-columns:1fr}.hero-copy{font-size:15px}h1{font-size:39px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:15px}.cta{display:block;padding:30px 25px}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(max-width:576px){.logo{font-size:14px}.timeline-nav{padding-bottom:3px}.flow{grid-template-columns:1fr}.index-panel{padding:20px}.index-item{grid-template-columns:28px 1fr}.index-item .tag{grid-column:2}.feedback{padding:25px 22px}.quote{font-size:20px}.footer-grid{grid-template-columns:1fr}.actions .btn{width:100%}.metric-stack{grid-template-columns:1fr 1fr}.metric-stack>div{padding:18px}.metric{font-size:27px}}

/* roulang page: category2 */
:root{--blue:#2d6684;--blue-deep:#204b65;--blue-soft:#eaf4f8;--cyan:#76b6c8;--ink:#203544;--muted:#6c8190;--line:#d9e6ec;--paper:#fff;--bg:#f6fafb;--warm:#f5e4bd;--coral:#d98467;--shadow:0 16px 40px rgba(44,83,104,.09);--shadow-sm:0 7px 20px rgba(44,83,104,.08);--radius:16px;--container:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.container{width:min(calc(100% - 48px),var(--container));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.nav-wrap{height:78px;display:flex;align-items:center;gap:30px}.logo{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:800;color:var(--blue-deep);font-size:17px}.logo-mark{width:28px;height:28px;border:2px solid var(--blue);border-radius:9px;position:relative}.logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--blue)}.logo-mark:before{width:10px;height:2px;left:7px;top:8px;box-shadow:0 6px 0 var(--cyan)}.logo-mark:after{width:4px;height:4px;border-radius:50%;right:4px;bottom:4px}.main-nav{display:flex;align-items:center;gap:5px;flex:1}.main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}.main-nav a:hover,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}.timeline-nav{display:flex;gap:7px;overflow:auto;white-space:nowrap}.stage{font-size:12px;padding:5px 10px;border-radius:99px;border:1px solid var(--line);color:var(--muted)}.stage.warm{background:#fff8e9;border-color:#edcf93;color:#986c28}.stage.live{background:var(--blue);border-color:var(--blue);color:#fff}.stage.replay{background:#edf2f6;color:#587080}.menu-btn{display:none;border:0;background:var(--blue-soft);color:var(--blue-deep);border-radius:8px;padding:8px 11px}
.hero{padding:76px 0 82px;background:linear-gradient(110deg,#f8fcfd 0%,#edf7fa 62%,#f9f5ee 100%)}.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center}.eyebrow,.section-kicker{font-size:12px;letter-spacing:.12em;color:var(--blue);font-weight:800}.hero h1{font-size:clamp(34px,5vw,62px);line-height:1.18;letter-spacing:-.045em;margin:15px 0 20px;max-width:650px}.hero-copy{font-size:17px;color:var(--muted);max-width:625px}.crumb{font-size:13px;color:var(--muted);margin-bottom:24px}.crumb a{color:var(--blue)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 15px rgba(45,102,132,.2)}.btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px)}.btn-secondary{background:#fff;border-color:var(--line);color:var(--blue-deep)}.btn-secondary:hover{background:var(--blue-soft);border-color:var(--cyan)}
.replay-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:27px 29px;box-shadow:var(--shadow)}.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}.panel-title{font-size:18px;font-weight:800}.panel-note{font-size:12px;color:var(--muted)}.timeline{position:relative;padding:22px 0 2px}.timeline:before{content:"";position:absolute;left:14px;top:30px;bottom:18px;width:2px;background:#cfe2e9}.node{position:relative;display:grid;grid-template-columns:30px 1fr auto;gap:13px;padding:0 0 22px;align-items:start}.node:last-child{padding-bottom:0}.dot{width:30px;height:30px;border-radius:50%;background:var(--blue-soft);border:7px solid #fff;box-shadow:0 0 0 1px var(--cyan);z-index:1}.node.current .dot{background:var(--coral);box-shadow:0 0 0 1px var(--coral)}.node h3{font-size:15px;margin:2px 0 3px}.node p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}.date{font-size:11px;color:var(--muted);white-space:nowrap}.tag{display:inline-flex;align-items:center;white-space:nowrap;border-radius:99px;padding:3px 9px;font-size:11px;background:var(--blue-soft);color:var(--blue)}.tag.warm{background:#fff4dc;color:#9a702e}.tag.replay{background:#eef1f4;color:#657887}.section{padding:92px 0}.section.alt{background:#edf6f8}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:35px}.section-head h2{font-size:clamp(27px,3.4vw,40px);line-height:1.28;margin:9px 0 0;letter-spacing:-.025em}.section-head p{max-width:530px;color:var(--muted);margin:0;font-size:15px}
.replay-layout{display:grid;grid-template-columns:230px 1fr;gap:45px;align-items:start}.index-panel{position:sticky;top:110px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}.index-panel h3{margin:0 0 16px;font-size:16px}.index-links{display:flex;flex-direction:column;gap:7px}.index-links a{padding:10px 12px;border-radius:9px;color:var(--muted);font-size:13px}.index-links a:hover,.index-links a.active{background:var(--blue-soft);color:var(--blue-deep);font-weight:700}.reading-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);margin-top:18px;padding-top:16px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-sm);margin-bottom:20px}.feature-card h3{font-size:25px;line-height:1.4;margin:16px 0 9px}.feature-card p{color:var(--muted);font-size:14px;max-width:720px;margin:0 0 18px}.meta{font-size:12px;color:var(--muted);display:flex;gap:15px;flex-wrap:wrap}.compact-list{border-top:1px solid var(--line)}.compact-item{display:grid;grid-template-columns:42px 1fr auto;gap:15px;padding:20px 4px;border-bottom:1px solid var(--line);align-items:start}.compact-item .number{font-size:13px;color:var(--cyan);font-weight:800;padding-top:3px}.compact-item h3{font-size:16px;margin:0 0 4px}.compact-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.6}.compact-item a{font-size:13px;color:var(--blue);font-weight:700;white-space:nowrap;padding-top:3px}.compact-item a:hover{color:var(--blue-deep)}
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.strip-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:var(--shadow-sm)}.strip-card h3{font-size:17px;margin:14px 0 7px}.strip-card p{font-size:13px;color:var(--muted);margin:0}.status-line{display:flex;justify-content:space-between;align-items:center}.empty{border:1px dashed #b9d2dc;background:rgba(255,255,255,.6);border-radius:var(--radius);padding:25px;color:var(--muted);font-size:13px;margin-top:20px}.faq-list{max-width:850px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line);background:#fff}.faq-q{width:100%;border:0;background:transparent;text-align:left;padding:21px 20px;display:flex;justify-content:space-between;color:var(--ink);font-weight:700}.faq-q span:last-child{font-size:22px;color:var(--blue);line-height:1;transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;padding:0 20px;transition:max-height .25s,padding .25s}.faq-item.open .faq-a{max-height:150px;padding:0 20px 20px}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.cta{padding:45px 50px;background:var(--blue-soft);border:1px solid #c8e0e8;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{font-size:28px;margin:8px 0 7px}.cta p{margin:0;color:var(--muted);font-size:14px}.cta-link{color:var(--blue-deep);font-size:14px;font-weight:700;border-bottom:1px solid var(--cyan);padding-bottom:3px}.site-footer{background:#eaf2f5;padding:42px 0 25px;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:30px}.footer-brand{font-size:18px;font-weight:800;color:var(--blue-deep);margin-bottom:10px}.footer-grid p,.footer-grid a{font-size:13px;color:var(--muted)}.footer-grid h3{font-size:14px;margin:0 0 12px;color:var(--ink)}.footer-links{display:flex;flex-direction:column;gap:5px}.footer-grid a:hover{color:var(--blue)}.copyright{border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
:focus-visible{outline:3px solid rgba(118,182,200,.5);outline-offset:3px}@media(max-width:992px){.nav-wrap{gap:16px}.hero-grid{gap:35px}.replay-layout{grid-template-columns:190px 1fr;gap:25px}.container{width:min(calc(100% - 36px),var(--container))}}@media(max-width:768px){.nav-wrap{height:68px}.menu-btn{display:block}.main-nav{display:none;position:absolute;top:68px;left:18px;right:18px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;box-shadow:var(--shadow)}.main-nav.open{display:flex;flex-direction:column;align-items:stretch}.main-nav a{padding:11px 13px}.timeline-nav{flex:1;min-width:0}.hero{padding:55px 0 60px}.hero-grid,.replay-layout{grid-template-columns:1fr}.index-panel{position:static}.section{padding:64px 0}.section-head{display:block}.section-head p{margin-top:16px}.strip{grid-template-columns:1fr 1fr}.cta{display:block;padding:32px 25px}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:576px){.container{width:min(calc(100% - 28px),var(--container))}.logo{font-size:15px}.timeline-nav{gap:4px}.stage{padding:4px 8px}.hero h1{font-size:36px}.hero-copy{font-size:15px}.actions .btn{width:100%}.replay-panel,.feature-card{padding:21px}.panel-top{display:block}.panel-note{display:block;margin-top:5px}.compact-item{grid-template-columns:30px 1fr}.compact-item a{grid-column:2}.strip{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: category1 */
:root{
      --blue:#2d6684;
      --blue-deep:#204b65;
      --blue-soft:#eaf4f8;
      --cyan:#76b6c8;
      --ink:#203544;
      --muted:#6c8190;
      --line:#d9e6ec;
      --paper:#fff;
      --bg:#f6fafb;
      --warm:#f5e4bd;
      --coral:#d98467;
      --shadow:0 16px 40px rgba(44,83,104,.09);
      --shadow-sm:0 7px 20px rgba(44,83,104,.08);
      --radius:16px;
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
    .nav-wrap{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:11px;min-width:max-content;font-weight:800;color:var(--blue-deep);font-size:17px}
    .logo-mark{width:28px;height:28px;border:2px solid var(--blue);border-radius:9px;position:relative}
    .logo-mark:before,.logo-mark:after{content:"";position:absolute;background:var(--blue)}
    .logo-mark:before{width:10px;height:2px;left:7px;top:8px;box-shadow:0 6px 0 var(--cyan)}
    .logo-mark:after{width:4px;height:4px;border-radius:50%;right:4px;bottom:4px}
    .main-nav{display:flex;align-items:center;gap:5px;flex:1}
    .main-nav a{padding:9px 13px;border-radius:9px;color:var(--muted);font-size:14px;transition:.2s}
    .main-nav a:hover,.main-nav a.active{color:var(--blue-deep);background:var(--blue-soft)}
    .main-nav a.active{font-weight:700}
    .timeline-nav{display:flex;gap:7px;overflow:auto;white-space:nowrap}
    .stage{font-size:12px;padding:5px 10px;border-radius:99px;border:1px solid var(--line);color:var(--muted);transition:.2s}
    .stage:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}
    .stage.warm{background:#fff8e9;border-color:#edcf93;color:#986c28}
    .stage.live{background:var(--blue);border-color:var(--blue);color:#fff}
    .stage.replay{background:#edf2f6;color:#587080}
    .menu-btn{display:none;border:0;background:var(--blue-soft);color:var(--blue-deep);border-radius:8px;padding:8px 11px}
    .hero{padding:78px 0 76px;background:linear-gradient(110deg,#f8fcfd 0%,#edf7fa 62%,#f9f5ee 100%)}
    .crumb{font-size:13px;color:var(--muted);margin-bottom:22px}
    .crumb a{color:var(--blue)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.12em;color:var(--blue);font-weight:800}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(35px,5vw,60px);line-height:1.18;letter-spacing:-.045em;margin:12px 0 21px;max-width:700px}
    .hero-copy{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:28px}
    .hero-actions{display:flex;gap:11px;flex-wrap:wrap}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
    .btn:focus,.faq-q:focus,.menu-btn:focus{outline:3px solid rgba(118,182,200,.38);outline-offset:2px}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 15px rgba(45,102,132,.2)}
    .btn-primary:hover{background:var(--blue-deep);transform:translateY(-1px)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--blue-deep)}
    .btn-secondary:hover{background:var(--blue-soft);border-color:var(--cyan)}
    .hero-note{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:22px}
    .hero-note span:before{content:"•";color:var(--coral);margin-right:7px;font-weight:800}
    .index-panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:27px 28px;box-shadow:var(--shadow)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}
    .panel-top strong{font-size:16px}
    .panel-top small{color:var(--muted);font-size:12px}
    .index-item{display:grid;grid-template-columns:38px 1fr auto;gap:12px;padding:18px 0;border-bottom:1px solid #edf2f4;align-items:start}
    .index-item:last-child{border:0;padding-bottom:4px}
    .index-num{color:var(--cyan);font-weight:800;font-size:14px}
    .index-item h3{font-size:15px;margin:0 0 4px}
    .index-item p{font-size:12px;color:var(--muted);margin:0;line-height:1.55}
    .tag{display:inline-flex;align-items:center;white-space:nowrap;border-radius:99px;padding:3px 9px;font-size:11px;background:var(--blue-soft);color:var(--blue)}
    .tag.warm{background:#fff4dc;color:#9a702e}
    .tag.replay{background:#eef1f4;color:#657887}
    .section{padding:92px 0}
    .section.alt{background:#edf6f8}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:35px}
    .section-head h2{font-size:clamp(27px,3.4vw,40px);line-height:1.28;margin:9px 0 0;letter-spacing:-.025em}
    .section-head p{max-width:530px;color:var(--muted);margin:0;font-size:15px}
    .category-layout{display:grid;grid-template-columns:245px 1fr;gap:46px;align-items:start}
    .side-index{position:sticky;top:105px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:var(--shadow-sm)}
    .side-index h3{font-size:15px;margin-bottom:17px}
    .side-index a{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid #edf2f4;color:var(--muted);font-size:13px}
    .side-index a:last-child{border-bottom:0}
    .side-index a:hover,.side-index a.active{color:var(--blue-deep);font-weight:700}
    .side-index a.active:after{content:"当前";font-size:11px;color:var(--blue)}
    .content-column{min-width:0}
    .feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:30px;margin-bottom:20px;transition:.22s}
    .feature-card:hover,.story-row:hover{box-shadow:var(--shadow);border-color:#bfd9e2;transform:translateY(-2px)}
    .feature-card h3{font-size:25px;line-height:1.4;margin:16px 0 10px}
    .feature-card p{color:var(--muted);font-size:14px;max-width:700px}
    .feature-top{display:flex;justify-content:space-between;gap:15px;align-items:center}
    .meta{font-size:12px;color:var(--muted);display:flex;gap:15px;flex-wrap:wrap}
    .story-list{border-top:1px solid var(--line)}
    .story-row{display:grid;grid-template-columns:55px 1fr auto;gap:17px;align-items:start;padding:22px 0;border-bottom:1px solid var(--line);transition:.22s}
    .story-row .row-num{font-size:18px;color:var(--cyan);font-weight:800}
    .story-row h3{font-size:17px;margin:0 0 5px;line-height:1.45}
    .story-row p{color:var(--muted);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .row-action{color:var(--blue);font-size:13px;font-weight:700;white-space:nowrap}
    .filter-bar{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:22px}
    .filter-label{font-size:13px;color:var(--muted)}
    .filter-select{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:8px;padding:8px 12px;outline:none}
    .filter-select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(118,182,200,.18)}
    .empty-state{margin-top:28px;background:#f8fbfc;border:1px dashed #bcd2db;border-radius:14px;padding:19px 22px;color:var(--muted);font-size:13px}
    .empty-state strong{display:block;color:var(--blue-deep);margin-bottom:3px}
    .section-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
    .annotation{border-left:2px solid var(--coral);padding:6px 0 6px 22px}
    .annotation h2{font-size:31px;line-height:1.35;margin:9px 0 14px}
    .annotation p{color:var(--muted);font-size:15px}
    .mini-points{display:grid;gap:12px}
    .mini-point{background:#fff;border:1px solid var(--line);border-radius:13px;padding:17px 20px;display:flex;gap:14px;align-items:flex-start}
    .mini-point b{color:var(--blue);font-size:13px;min-width:35px}
    .mini-point span{font-size:14px;color:var(--muted)}
    .faq-list{max-width:850px;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line);background:#fff}
    .faq-q{width:100%;border:0;background:transparent;text-align:left;padding:21px 20px;display:flex;justify-content:space-between;color:var(--ink);font-weight:700}
    .faq-q span:last-child{font-size:22px;color:var(--blue);line-height:1;transition:.2s}
    .faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;padding:0 20px;transition:max-height .25s,padding .25s}
    .faq-item.open .faq-a{max-height:150px;padding:0 20px 20px}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta{padding:45px 50px;background:var(--blue-soft);border:1px solid #c8e0e8;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta h2{font-size:28px;margin:8px 0 7px}
    .cta p{margin:0;color:var(--muted);font-size:14px}
    .cta-link{color:var(--blue-deep);font-size:14px;font-weight:700;border-bottom:1px solid var(--cyan);padding-bottom:3px}
    .site-footer{background:#eaf2f5;padding:42px 0 25px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:30px}
    .footer-brand{font-size:18px;font-weight:800;color:var(--blue-deep);margin-bottom:10px}
    .footer-grid p,.footer-grid a{font-size:13px;color:var(--muted)}
    .footer-grid h3{font-size:14px;margin:0 0 12px;color:var(--ink)}
    .footer-links{display:flex;flex-direction:column;gap:5px}
    .footer-grid a:hover{color:var(--blue)}
    .copyright{border-top:1px solid var(--line);padding-top:18px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    @media(max-width:992px){
      .nav-wrap{gap:15px}.main-nav{gap:0}.hero-grid{gap:35px}.category-layout{grid-template-columns:205px 1fr}.section-split{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:68px;position:relative}
      .menu-btn{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px;box-shadow:var(--shadow-sm);flex-direction:column;align-items:stretch}
      .main-nav.open{display:flex}
      .main-nav a{padding:12px}
      .timeline-nav{max-width:185px}
      .hero{padding:55px 0 58px}.hero-grid,.category-layout,.section-split{grid-template-columns:1fr}
      .side-index{position:static}
      .side-index a{display:inline-flex;margin-right:18px;border:0;gap:8px}
      .side-index{display:block}
      .side-index h3{margin-bottom:8px}
      .section{padding:62px 0}
      .section-head{display:block;margin-bottom:25px}.section-head p{margin-top:15px}
      .cta{padding:32px 25px;display:block}.cta .btn{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:576px){
      h1{font-size:36px}.hero-copy{font-size:15px}.index-panel{padding:20px}
      .index-item{grid-template-columns:27px 1fr}.index-item .tag{grid-column:2;justify-self:start}
      .feature-card{padding:22px}.feature-card h3{font-size:21px}
      .story-row{grid-template-columns:35px 1fr}.row-action{grid-column:2}
      .filter-bar{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}
      .copyright{display:block}.copyright span{display:block;margin-bottom:5px}
    }