:root{--bg:#f7f3ee;--paper:#fffdf9;--ink:#26343b;--muted:#68767b;--teal:#0f9187;--teal-soft:#e5f5f2;--navy:#173b5b;--coral:#d95f62;--line:#e6ded4;--shadow:0 14px 38px rgba(32,56,64,.08);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:99}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.ticker{height:34px;background:linear-gradient(90deg,var(--teal),var(--navy));color:#fff;display:flex;align-items:center;justify-content:space-around;gap:20px;font-size:13px;white-space:nowrap;overflow:hidden}.topnav{height:70px;background:rgba(255,253,249,.96);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:22px;padding:0 clamp(18px,3vw,48px);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}.brand{font-weight:900;font-size:21px;color:var(--navy);display:flex;align-items:center;gap:9px;white-space:nowrap}.brand-mark{width:34px;height:34px;border-radius:12px;background:var(--teal);color:#fff;display:grid;place-items:center}.nav-links{display:flex;align-items:center;gap:5px;flex:1}.nav-links a{padding:9px 11px;border-radius:10px;font-size:14px}.nav-links a:hover{background:var(--teal-soft);color:var(--teal)}.search{display:flex;border:1px solid #b9d4d0;border-radius:999px;overflow:hidden;background:#fff}.search input{border:0;background:transparent;padding:9px 14px;width:170px;outline:0}.search button{border:0;background:var(--teal);color:#fff;padding:0 15px}.nav-toggle{display:none}.home-shell,.page-shell{max-width:1460px;margin:auto;padding:24px clamp(16px,3vw,44px) 72px}.home-hero,.page-hero{position:relative;min-height:520px;border:1px solid var(--line);border-radius:28px;overflow:hidden;background:var(--paper);box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1.05fr}.home-hero img,.page-hero img{width:100%;height:100%;object-fit:cover}.hero-copy,.page-hero>div{padding:clamp(34px,5vw,76px);align-self:center}.eyebrow{display:inline-block;color:var(--teal);font-weight:800;letter-spacing:.08em;font-size:13px;text-transform:uppercase}.home-hero h1,.page-hero h1{font-size:clamp(34px,4vw,60px);line-height:1.18;margin:14px 0 22px;color:var(--navy);letter-spacing:-.03em}.home-hero p,.page-hero p{font-size:17px;color:#53656b}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:999px;background:var(--teal);color:#fff;font-weight:800}.btn.ghost{background:transparent;border:2px solid var(--teal);color:var(--teal)}.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}.hero-tags span,.tag{background:var(--teal-soft);color:var(--teal);padding:4px 10px;border-radius:999px;font-size:12px;font-weight:800}.layout-grid{display:grid;grid-template-columns:190px minmax(0,1fr) 220px;gap:24px;margin-top:28px}.side-nav,.right-rail{align-self:start;position:sticky;top:95px}.side-nav{display:flex;flex-direction:column;gap:6px;padding:16px 0}.side-nav strong{padding:8px 14px;color:var(--muted);font-size:13px}.side-nav a{padding:10px 14px;border-left:3px solid transparent;border-radius:0 12px 12px 0}.side-nav a:hover{background:var(--teal-soft);border-left-color:var(--teal);color:var(--teal)}.main-flow{min-width:0}.right-rail{display:flex;flex-direction:column;gap:14px}.rail-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.rail-card strong{color:var(--navy)}.rail-card p,.rail-card a{font-size:13px;color:var(--muted);margin:8px 0;display:block}.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(22px,4vw,42px);box-shadow:var(--shadow)}.intro-panel{display:grid;grid-template-columns:1.25fr 1fr;gap:32px}.intro-panel h2,.section h2{color:var(--navy);line-height:1.3}.trend-list{margin:0;padding:0;list-style:none}.trend-list li{display:flex;justify-content:space-between;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}.trend-list span{color:var(--coral);font-weight:800}.section{margin-top:48px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:22px}.section-head h2{margin:7px 0 0;font-size:clamp(25px,3vw,38px)}.section-head>a,.text-link{color:var(--teal);font-weight:800}.chip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.chip-grid a{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:18px;font-weight:800;color:var(--navy)}.chip-grid small{display:block;font-weight:400;color:var(--muted);margin-top:3px}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.story-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.cover{position:relative;display:block;aspect-ratio:12/7;overflow:hidden}.cover img{width:100%;height:100%;object-fit:cover;transition:.35s}.cover:hover img{transform:scale(1.035)}.play{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:rgba(15,145,135,.92);color:#fff;border:3px solid rgba(255,255,255,.75);padding-left:3px}.play.large{width:72px;height:72px}.card-body{padding:18px}.card-body h3{font-size:18px;line-height:1.35;margin:12px 0 8px;color:var(--navy)}.card-body p{font-size:14px;color:var(--muted);margin:0}.meta{font-size:12px;color:#879399;margin-top:14px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stats div{text-align:center;background:var(--bg);border-radius:16px;padding:20px}.stats strong{display:block;font-size:34px;color:var(--teal)}.stats span{font-size:13px;color:var(--muted)}.fineprint{font-size:12px;color:var(--muted);margin-bottom:0}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.feature-grid article{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:22px}.feature-grid b{color:var(--coral);font-size:22px}.feature-grid h2,.feature-grid h3{font-size:18px;margin:9px 0}.feature-grid p{font-size:14px;color:var(--muted);margin:0}.split-show{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;background:var(--paper);padding:28px;border-radius:var(--radius);border:1px solid var(--line)}.split-show img{border-radius:16px}.table-wrap{overflow:auto}.comparison table{width:100%;border-collapse:collapse;background:var(--paper);border-radius:18px;overflow:hidden}.comparison th,.comparison td{text-align:left;padding:15px;border-bottom:1px solid var(--line)}.comparison th{background:var(--teal-soft);color:var(--navy)}.timeline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.timeline-grid article{border-top:4px solid var(--teal);background:var(--paper);padding:20px;border-radius:5px 5px 16px 16px}.timeline-grid time{color:var(--coral);font-weight:800}.faq details{background:var(--paper);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin-bottom:10px}.faq summary{font-weight:800;color:var(--navy);cursor:pointer}.breadcrumb{display:flex;gap:9px;color:var(--muted);font-size:13px;margin:0 0 18px}.page-hero{min-height:390px}.page-hero h1{font-size:clamp(32px,4vw,52px)}.page-hero img{max-height:520px}.prose-columns{columns:3;column-gap:34px}.prose-columns p{break-inside:avoid;margin-top:0}.prose{max-width:900px}.prose h2{margin-top:35px}.steps,.rules-list{padding-left:22px}.steps li,.rules-list li{margin:12px 0}.notice{margin:28px 0;background:#fff6e9;border:1px solid #f0d6aa;border-left:5px solid #e49a3a;padding:20px;border-radius:14px}.notice p{margin:6px 0 0}.article-shell{max-width:1160px;margin:auto;padding:24px 28px 72px;display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:30px}.article-shell>.breadcrumb{grid-column:1/-1}.article{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:clamp(24px,5vw,58px);box-shadow:var(--shadow)}.article h1{font-size:clamp(30px,4vw,48px);line-height:1.25;color:var(--navy);margin:15px 0}.lead{font-size:18px;color:#53656b}.byline{font-size:13px;color:var(--muted)}.article-cover{position:relative;margin:30px 0}.article-cover img{width:100%;border-radius:18px}.article-cover figcaption{font-size:12px;color:var(--muted);margin-top:8px}.article-toc{display:flex;flex-wrap:wrap;gap:10px 18px;background:var(--teal-soft);padding:16px;border-radius:12px}.article-toc a{color:var(--teal)}.article section{scroll-margin-top:100px}.article section h2{color:var(--navy);margin-top:34px}.article blockquote{border-left:4px solid var(--teal);margin:25px 0;padding:12px 18px;background:var(--bg);color:var(--navy);font-weight:700}.article-side{padding-top:80px}.sticky-card{position:sticky;top:100px;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px}.sticky-card h2{font-size:17px}.sticky-card a{display:block;color:var(--teal);margin:10px 0}.footer{background:#173746;color:#dce8e8;padding:48px clamp(20px,5vw,72px) 20px}.footer-grid{max-width:1320px;margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}.footer h2{color:#fff;font-size:16px}.footer a{display:block;color:#c8dad8;font-size:14px;margin:8px 0}.footer p{font-size:13px}.disclaimer,.copyright{max-width:1320px;margin:30px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);font-size:12px;color:#afc4c3}.copyright{margin-top:10px;padding-top:10px}.ticker span:after{content:' ✦';opacity:.65}
@media(max-width:1100px){.search{display:none}.layout-grid{grid-template-columns:160px minmax(0,1fr)}.right-rail{display:none}.card-grid{grid-template-columns:repeat(2,1fr)}.feature-grid,.timeline-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.ticker{justify-content:flex-start;padding:0 16px}.topnav{height:62px}.nav-toggle{display:block;margin-left:auto;border:0;background:var(--teal-soft);color:var(--teal);padding:8px 12px;border-radius:9px}.nav-links{display:none;position:absolute;left:12px;right:12px;top:66px;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.home-shell,.page-shell{padding:14px 14px 48px}.home-hero,.page-hero{grid-template-columns:1fr;min-height:0}.hero-copy,.page-hero>div{padding:28px 23px}.home-hero img,.page-hero img{height:280px;order:-1}.layout-grid{display:block}.side-nav{position:static;display:flex;overflow:auto;flex-direction:row;padding:10px 0}.side-nav strong{display:none}.side-nav a{white-space:nowrap;border:0;background:var(--paper)}.intro-panel,.split-show{grid-template-columns:1fr}.chip-grid,.card-grid,.stats,.feature-grid,.timeline-grid{grid-template-columns:1fr}.section{margin-top:34px}.prose-columns{columns:1}.article-shell{display:block;padding:14px}.article{padding:24px 20px}.article-side{padding-top:20px}.article-toc{flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:460px){.footer-grid{grid-template-columns:1fr}.brand{font-size:18px}.home-hero h1,.page-hero h1{font-size:32px}}