:root{--brand:#6D28D9;--brand-soft:#A78BFA;--ink:#27242D;--muted:#716B78;--deep:#17151C;--bg:#F7F5FA;--panel:#ECE8F2;--accent:#F59E0B;--white:#fff;--line:#dcd6e5;--max:1180px;--narrow:860px;--radius:18px;--shadow:0 16px 38px rgba(23,21,28,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--deep);color:#fff;padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,250,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(109,40,217,.12)}.header-inner{max-width:var(--max);margin:auto;min-height:76px;padding:10px 24px;display:flex;align-items:center;gap:28px}.brand-mark{display:flex;align-items:center;gap:12px;min-width:max-content}.brand-logo-wrap{width:42px;height:42px;border-radius:14px;overflow:hidden;background:var(--deep)}.brand-logo-wrap img{width:100%;height:100%;object-fit:cover}.brand-copy{display:flex;flex-direction:column;line-height:1.1}.brand-copy strong{font-size:1.35rem}.brand-copy small{margin-top:5px;color:var(--muted)}.site-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.site-nav a{padding:9px 12px;border-radius:10px;font-size:.95rem}.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--panel);color:var(--brand)}.menu-toggle{display:none}.search-open{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px;color:var(--ink)}.search-open:hover{border-color:var(--brand);color:var(--brand)}
.site-main{max-width:var(--max);margin:0 auto;padding:40px 24px 88px}.site-main.narrow{max-width:940px}.site-main.narrow-wide{max-width:1060px}.eyebrow{margin:0 0 10px;color:var(--brand);font-weight:800;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase}.lead{font-size:1.12rem;color:#4c4753;line-height:1.9}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 17px;border-radius:12px;border:1px solid var(--line);background:#fff;font-weight:800}.button.primary{background:var(--brand);border-color:var(--brand);color:#fff}.button:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(23,21,28,.08)}.text-link{display:inline-block;color:var(--brand);font-weight:800;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.action-row,.lead-links{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}.breadcrumb{max-width:var(--max);margin:0 auto 20px}.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0;color:var(--muted);font-size:.9rem}.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#aaa1b2}.breadcrumb a:hover{color:var(--brand)}
.home-lead{display:grid;grid-template-columns:.95fr 1.05fr;gap:42px;align-items:center;padding:18px 0 52px}.home-lead-media{position:relative;min-height:480px;border-radius:26px;overflow:hidden;background:var(--deep);box-shadow:var(--shadow)}.home-lead-media:after{content:"";position:absolute;inset:auto 0 0 0;height:38%;background:linear-gradient(transparent,rgba(23,21,28,.58))}.home-lead-media img{width:100%;height:100%;min-height:480px;object-fit:cover}.home-lead-copy h1{font-size:clamp(2.2rem,4vw,4.4rem);line-height:1.08;margin:.15em 0 .35em;letter-spacing:-.04em}.lead-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:28px 0 0}.lead-facts div{padding:14px;border-left:3px solid var(--brand-soft);background:rgba(255,255,255,.6)}.lead-facts dt{font-size:.78rem;color:var(--muted)}.lead-facts dd{margin:4px 0 0;font-weight:800;font-size:.92rem}.editor-strip{padding:34px 0 44px;border-top:1px solid var(--line);display:grid;grid-template-columns:260px 1fr;gap:36px}.editor-strip h2,.section-heading h2{font-size:clamp(1.6rem,2.4vw,2.5rem);line-height:1.2;margin:.2em 0}.editor-links{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.editor-links a{display:flex;flex-direction:column;gap:8px;padding:20px 18px;border-bottom:1px solid var(--line)}.editor-links a:nth-child(odd){border-right:1px solid var(--line)}.editor-links strong{font-size:1.08rem}.editor-links span{color:var(--muted)}.editor-links em{font-style:normal;color:var(--brand);font-weight:800}.split-band{margin:30px -24px 0;padding:52px 24px;background:var(--deep);color:#f8f5ff;display:grid;grid-template-columns:.82fr 1.18fr;gap:44px}.split-band .section-copy{max-width:470px;margin-left:auto}.split-band h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.15}.split-band p{color:#cfc7d8}.check-list{padding-left:20px}.check-list li{margin:8px 0}.feature-stack{max-width:650px}.feature-stack>img{width:100%;max-height:320px;object-fit:cover;border-radius:22px;margin-bottom:18px}.compact-list .story-row{background:#221f27;border-color:#3a3442}.compact-list .story-row p{color:#c9c0d1}.compact-list .story-row h3 a{color:#fff}.compact-list .story-thumb{display:none}
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.page-intro{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;padding:24px 0 44px}.page-intro h1,.watch-hero h1,.article-header h1,.search-page-head h1{font-size:clamp(2.1rem,4vw,3.7rem);line-height:1.14;letter-spacing:-.035em;margin:.2em 0 .35em}.page-intro figure{margin:0;border-radius:20px;overflow:hidden;max-height:340px}.page-intro figure img{width:100%;height:340px;object-fit:cover}.fact-table{margin:0;border-top:1px solid var(--line)}.fact-table div{display:grid;grid-template-columns:180px 1fr;gap:20px;padding:16px 0;border-bottom:1px solid var(--line)}.fact-table dt{font-weight:800}.fact-table dd{margin:0;color:var(--muted)}.reading-columns{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin:52px 0}.reading-columns>div{padding:26px;background:#fff;border-radius:18px;border:1px solid var(--line)}.link-list{padding-left:20px}.link-list li{margin:10px 0}.link-list a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}.notice-panel,.boundary-box,.return-core,.faq-next{margin:42px 0 0;padding:28px;border:1px solid var(--line);border-left:5px solid var(--accent);background:#fff;border-radius:16px}.brand-guides{margin-top:58px}.watch-hero{display:grid;grid-template-columns:1fr .72fr;gap:38px;align-items:center;padding:18px 0 48px}.watch-hero figure{margin:0;border-radius:24px;overflow:hidden}.watch-hero figure img{width:100%;height:430px;object-fit:cover}.pill-nav{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}.pill-nav a,.filter-bar a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:700}.pill-nav a:hover,.filter-bar a:hover,.filter-bar a[aria-current=page]{border-color:var(--brand);color:var(--brand);background:#f2edfb}.dense-section{padding:54px 0}.soft-bg{margin-left:-24px;margin-right:-24px;padding-left:24px;padding-right:24px;background:var(--panel)}.two-part{display:grid;grid-template-columns:.72fr 1.28fr;gap:30px}.two-part figure{margin:0;border-radius:20px;overflow:hidden;position:sticky;top:106px;align-self:start}.two-part figure img{min-height:520px;object-fit:cover}.dark-band{margin-left:-24px;margin-right:-24px;padding-left:24px;padding-right:24px;background:var(--deep);color:#fff}.section-heading.light>p,.dark-band .story-row p{color:#c8c0ce}.dark-band .story-row{border-color:#3b3540}.dark-band .story-row h3 a{color:#fff}.dark-band .tag-line span{background:#2b2730;color:#d6cedb}.watch-free{display:grid;grid-template-columns:1fr .8fr;gap:32px;align-items:center;margin-top:46px;padding:28px;border:1px solid var(--line);border-radius:20px}.watch-free figure{margin:0;border-radius:16px;overflow:hidden}.timeline-section{margin:32px 0 62px}.process-list{list-style:none;padding:0;margin:26px 0}.process-list li{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:22px 0;border-top:1px solid var(--line)}.process-list li:last-child{border-bottom:1px solid var(--line)}.process-list li>span{font-size:1.7rem;font-weight:900;color:var(--brand-soft)}.process-list h3{margin:0 0 6px}.process-list p{margin:0;color:var(--muted)}.topic-crosslinks,.return-core{margin-top:50px}.crosslink-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.crosslink-grid a{padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}.crosslink-grid a:hover{border-color:var(--brand)}.crosslink-grid strong,.crosslink-grid span{display:block}.crosslink-grid span{margin-top:7px;color:var(--muted)}.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.comparison-grid>div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}.library-list>h2{margin-bottom:10px}.pagination{display:flex;gap:7px;flex-wrap:wrap;justify-content:center;margin-top:34px}.pagination a{min-width:42px;height:42px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--line);background:#fff}.pagination a[aria-current=page]{background:var(--brand);color:#fff;border-color:var(--brand)}.guide-steps,.guide-mobile{margin:36px 0 56px}.guide-mobile{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}.guide-mobile figure{margin:0;border-radius:18px;overflow:hidden}.principle-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.principle-list article{padding:22px;border:1px solid var(--line);background:#fff;border-radius:16px}.principle-list article:last-child:nth-child(odd){grid-column:1/-1}.principle-list h3{margin-top:0}.contact-guidance ol,.boundary-box ol{padding-left:24px}.contact-guidance li,.boundary-box li{margin:12px 0}.safety-list{margin-top:30px}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:100}.search-backdrop{position:absolute;inset:0;background:rgba(23,21,28,.72)}.search-dialog{position:relative;max-width:620px;margin:12vh auto 0;background:#fff;border-radius:22px;padding:32px;box-shadow:var(--shadow)}.search-close{position:absolute;right:16px;top:12px;width:40px;height:40px;border:0;background:transparent;font-size:2rem}.search-dialog h2{font-size:2rem;margin:.2em 0}.search-form-row,.inline-search>div{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:8px}.search-form-row input,.inline-search input{min-width:0;border:1px solid var(--line);border-radius:11px;padding:12px 14px;background:var(--bg)}.search-form-row button,.inline-search button{border:0;border-radius:11px;background:var(--brand);color:#fff;padding:0 18px;font-weight:800}.search-page-head{max-width:760px;margin:18px auto 46px;text-align:center}.inline-search{text-align:left;margin-top:24px}.search-results{max-width:900px;margin:auto}.empty-state{padding:30px;background:#fff;border:1px solid var(--line);border-radius:18px}.article-shell{max-width:1060px}.article-header{display:grid;grid-template-columns:1.2fr .8fr;gap:34px;align-items:center;padding:10px 0 36px}.article-header figure{margin:0;border-radius:20px;overflow:hidden}.article-header figure img{height:360px;width:100%;object-fit:cover}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:38px}.article-body{font-size:1.04rem}.article-body section{padding:8px 0 20px}.article-body h2{font-size:1.7rem;line-height:1.35;margin:1em 0 .45em}.article-body p{color:#47424d}.sticky-box{position:sticky;top:106px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}.sticky-box h2{margin-top:0;font-size:1.2rem}.sticky-box p{color:var(--muted);font-size:.92rem}.sticky-box a{display:block;padding:10px 0;border-top:1px solid var(--line);color:var(--brand);font-weight:700}.article-related{margin-top:44px;padding-top:30px;border-top:3px solid var(--deep)}.related-list .story-row{grid-template-columns:1fr 130px}.not-found{max-width:700px;margin:8vh auto;padding:44px;background:#fff;border:1px solid var(--line);border-radius:24px;text-align:center}.not-found h1{font-size:2.5rem;margin:.3em 0}.not-found .action-row{justify-content:center}
.site-footer{background:var(--deep);color:#f4f0f7;padding:54px 24px 26px}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:34px}.footer-grid h2{font-size:1rem}.footer-grid p,.footer-grid a{color:#bdb5c4;font-size:.92rem}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin:8px 0}.footer-grid a:hover{color:var(--brand-soft)}.footer-bottom{max-width:var(--max);margin:34px auto 0;padding-top:20px;border-top:1px solid #37313c;display:flex;justify-content:space-between;gap:16px;align-items:center;color:#9f96a6;font-size:.86rem}.back-top{background:transparent;border:1px solid #4a4350;color:#d8d1dd;border-radius:999px;padding:8px 13px}
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@media(max-width:600px){.brand-copy small{display:none}.story-row{grid-template-columns:1fr}.story-thumb{height:200px}.story-thumb img{height:100%}.footer-grid{grid-template-columns:1fr}.page-intro figure,.watch-hero figure{order:2}.page-intro h1,.watch-hero h1,.article-header h1{font-size:2.1rem}.fact-table div{grid-template-columns:1fr;gap:4px}.footer-bottom{flex-direction:column}.search-form-row,.inline-search>div{grid-template-columns:1fr}.search-form-row button,.inline-search button{min-height:44px}.process-list li{grid-template-columns:52px 1fr}.article-header{gap:18px}.related-list .story-row{grid-template-columns:1fr}}
@media(max-width:375px){.header-inner{padding-inline:12px}.brand-logo-wrap{width:38px;height:38px}.brand-copy strong{font-size:1.15rem}.site-main{padding-inline:12px}.split-band,.soft-bg,.dark-band{margin-left:-12px;margin-right:-12px;padding-left:12px;padding-right:12px}.home-lead-copy h1{font-size:2rem}.page-intro h1,.watch-hero h1,.article-header h1{font-size:1.85rem}.button{width:100%}.lead-links .text-link{width:100%}.action-row{align-items:stretch}.story-thumb{height:170px}}