:root{--bg:#F6F7F5;--paper:#fff;--dark:#12263A;--head:#14263A;--text:#293847;--muted:#596B78;--blue:#176B83;--accent:#D59B58;--line:#DCE4E4;--radius:12px}*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.72;overflow-wrap:anywhere}img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:3px}h1,h2,h3,p,figure{margin-top:0}h1,h2,h3{color:var(--head);line-height:1.32;letter-spacing:0;font-weight:700}h1{font-size:clamp(26px,3.1vw,34px)}h2{font-size:clamp(21px,2.1vw,26px)}h3{font-size:19px}p{margin-bottom:1em}.container{width:calc(100% - 56px);max-width:1160px;margin-inline:auto}.skip{position:absolute;top:-100px;left:20px;z-index:100;background:#fff;padding:10px}.skip:focus{top:10px}.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:20}.header-inner{min-height:72px;display:flex;align-items:center;gap:32px}.brand{display:flex;gap:9px;align-items:center;font-weight:800;white-space:nowrap;color:var(--dark);font-size:23px;line-height:1}.brand-img{height:32px;width:auto;max-width:95px}.brand-light{font-weight:500;letter-spacing:.08em}.desktop-links{display:flex;align-self:stretch;align-items:center;gap:clamp(12px,2vw,28px);margin-inline:auto}.desktop-links a{height:100%;display:flex;align-items:center;position:relative;color:var(--head);font-size:15px;white-space:nowrap}.desktop-links a[aria-current=page],.desktop-links a:hover{color:var(--blue);text-decoration:none}.desktop-links a[aria-current=page]:after{content:"";position:absolute;height:3px;bottom:0;left:0;right:0;background:var(--blue)}.header-actions{display:flex;align-items:center;gap:14px;white-space:nowrap}.menu-toggle{border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--head);padding:8px 14px;min-height:44px}.menu-toggle[aria-expanded=true]{border-color:var(--blue);color:var(--blue)}.app-link{font-size:14px;color:#fff;background:var(--dark);padding:10px 15px;border-radius:9px;min-height:44px;display:inline-flex;align-items:center}.app-link:hover{background:var(--blue);text-decoration:none}.mobile-toggle,.mobile-panel{display:none}.desktop-panel{position:absolute;top:100%;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 12px 28px #12263a20;max-height:min(78vh,680px);overflow:auto}.desktop-panel[hidden],.mobile-panel[hidden]{display:none!important}.panel-inner{max-width:960px;padding:20px 0 30px}.panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.close-panel{background:transparent;color:var(--muted);border:0;min-width:44px;min-height:44px}.panel-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.panel-columns h2{font-size:16px;padding-bottom:8px;border-bottom:1px solid var(--line)}.panel-columns a{display:flex;flex-direction:column;padding:7px 3px;border-radius:5px}.panel-columns a strong{font-size:14px;color:var(--head)}.panel-columns a span{font-size:13px;color:var(--muted)}.panel-columns a:hover{background:var(--bg);text-decoration:none}.eyebrow{display:block;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.1em;margin-bottom:12px}.homepage .section{padding-block:56px;border-bottom:1px solid var(--line)}.homepage .section:first-child{padding-top:50px}.home-hero,.split-section,.mobile-feature{display:grid;grid-template-columns:minmax(0,1.22fr) minmax(0,1fr);align-items:center;gap:clamp(24px,4vw,52px)}.home-hero{grid-template-columns:minmax(0,1.2fr) minmax(0,.95fr)}.hero-lead{font-size:17px;max-width:43em}.hero-art,.visual,.article-visual,.phone-figure,.edit-pic{margin:0;background:#edf1f0;border-radius:var(--radius);display:flex;align-items:center;justify-content:center}.hero-art:empty,.visual:empty,.article-visual:empty,.edit-pic:empty,.phone-figure:empty{display:none}.hero-art img{max-height:320px;width:auto;max-width:100%}.button-row,.chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{background:var(--dark);color:#fff!important;border:1px solid var(--dark);padding:10px 20px;min-height:44px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-weight:600}.btn.secondary{color:var(--dark)!important;background:transparent}.btn:hover{text-decoration:none;filter:brightness(1.08)}.section-heading{max-width:760px;margin-bottom:25px}.section-heading p{margin-top:16px}.editor-line{padding:14px 18px;background:#e8eeed;border-left:3px solid var(--blue)}.index-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.index-item{padding:19px 18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--text);display:flex;flex-direction:column;gap:8px}.index-item strong{color:var(--head);font-size:18px}.index-item span{font-size:14px;line-height:1.68}.index-item:hover,.matrix-card:hover{border-color:var(--blue);text-decoration:none}.matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.matrix-card{background:#fff;color:var(--text);padding:22px;border:1px solid var(--line);border-radius:var(--radius);min-height:186px}.matrix-card:nth-child(2),.matrix-card:nth-child(5){background:#eaf0ef}.num{font-size:13px;color:#9e7138;font-weight:800;letter-spacing:.08em}.matrix-card h3{margin:7px 0}.matrix-card p{font-size:15px;margin:0 0 10px}.more{font-size:14px;font-weight:600;color:var(--blue)}.split-section{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr)}.visual{min-height:170px}.section-image{width:auto;height:auto;max-width:100%;max-height:225px}.copy>p{max-width:680px}.chips a{min-height:44px;padding:9px 14px;border:1px solid var(--line);background:#fff;border-radius:8px;display:inline-flex;align-items:center;font-size:14px}.feature-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;align-items:flex-start}.feature-card img{margin:0 auto 18px;max-height:200px}.feature-card p{max-width:55ch}.feature-card>a{margin-top:auto;min-height:44px;display:inline-flex;align-items:center}.story-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.8fr);gap:24px}.story-main,.story-aside{padding:23px;border:1px solid var(--line);border-radius:var(--radius);background:#fff}.story-main img{max-height:220px;margin:15px 0}.story-aside img{max-height:185px;margin-bottom:18px}.edit-wrap{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.7fr);gap:24px;align-items:center}.edit-items{border-top:1px solid var(--line)}.edit-items>a{display:flex;align-items:flex-start;gap:17px;padding:19px 0;border-bottom:1px solid var(--line);color:var(--head);min-height:72px}.edit-items strong,.edit-items small{display:block}.edit-items small{font-size:14px;color:var(--muted);margin-top:5px}.edit-items .arrow{margin-left:auto;color:var(--blue)}.edit-pic img{max-height:210px}.essay-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.essay-pair article{padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.essay-pair img{max-height:180px;margin:0 auto 18px}.mobile-feature{grid-template-columns:minmax(0,.55fr) minmax(0,1.45fr)}.phone-figure{background:transparent}.phone-img{max-height:400px;width:auto;max-width:100%}.app-mini{display:flex;align-items:center;gap:12px;margin-bottom:12px}.badge-img{max-width:55px;max-height:55px;width:auto;height:auto}.trust-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.trust-grid>div{border-top:3px solid var(--accent);padding-top:16px}.trust-grid p{font-size:15px}.foot-links{padding-top:24px;margin-top:24px;border-top:1px solid var(--line)}.foot-links a{margin-right:12px}.page{padding-top:36px;padding-bottom:64px}.page-intro{padding-bottom:25px;border-bottom:1px solid var(--line);margin-bottom:33px}.page-intro .eyebrow{margin-bottom:8px}.page-intro h1{margin-bottom:12px}.lead{max-width:850px;margin-bottom:14px;color:var(--muted)}.crumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:14px}.reading-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(220px,270px);gap:40px;align-items:start}.reading-article{max-width:840px}.prose-section{margin-bottom:34px}.prose-section h2{font-size:23px;margin-bottom:14px}.prose-section p,.deep-note p{max-width:76ch}.article-visual{max-width:690px;margin:0 0 28px}.article-visual .section-image{max-height:225px}.sidebar{border-left:2px solid var(--line);padding:16px 0 14px 20px;background:#fff;border-radius:0 10px 10px 0}.sidebar h2{font-size:20px}.sidebar p{font-size:14px;margin-bottom:12px}.deep-note{max-width:840px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-top:22px}.deep-note h2{font-size:22px}.related{padding-top:34px;margin-top:40px;border-top:1px solid var(--line)}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related-links a{padding:16px;min-height:92px;background:#fff;border:1px solid var(--line);border-radius:10px}.related-links strong,.related-links span{display:block}.related-links strong{color:var(--head);margin-bottom:5px}.related-links span{font-size:14px}.topic-index{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.topic-entry{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}.topic-entry h2{font-size:21px}.notice{max-width:840px;padding:20px;background:#e9f0ef;border-left:3px solid var(--blue);margin-top:20px}.faq-list{max-width:850px}.faq-item{padding:24px 0;border-bottom:1px solid var(--line)}.faq-item h2{font-size:20px}.faq-item p{max-width:78ch;margin-bottom:0}.site-footer{background:#eaf0ee;border-top:1px solid var(--line);padding-top:45px;color:var(--text)}.footer-inner{display:grid;grid-template-columns:minmax(0,250px) minmax(0,1fr);gap:60px}.footer-brand p{font-size:14px;margin-top:17px}.footer-groups{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-groups h2{font-size:16px;margin-bottom:12px}.footer-groups a{display:block;font-size:14px;margin:7px 0;color:var(--text)}.footer-bottom{border-top:1px solid #cad7d5;margin-top:30px;padding-block:15px;display:flex;justify-content:space-between;gap:16px;font-size:13px;color:var(--muted)}.bottom-nav{display:none}
@media(max-width:980px){.container{width:calc(100% - 44px)}.desktop-links{gap:12px}.header-inner{gap:15px}.header-actions{gap:8px}.brand{font-size:20px}.desktop-links a{font-size:14px}.panel-columns{gap:16px}.footer-inner{gap:25px}.footer-groups{gap:14px}.reading-layout{grid-template-columns:minmax(0,1fr) 235px;gap:25px}.index-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.container{width:calc(100% - 32px)}body{padding-bottom:calc(60px + env(safe-area-inset-bottom))}.header-inner{min-height:62px;justify-content:space-between;gap:10px}.brand{font-size:20px}.brand-img{height:29px;max-width:72px}.desktop-links,.desktop-toggle,.desktop-panel{display:none!important}.mobile-toggle{display:inline-flex;align-items:center;gap:4px;padding:7px 9px}.mobile-panel{display:block;border-top:1px solid var(--line);background:#fff}.mobile-panel .container{padding:12px 0 18px}.mobile-menu-title{font-size:14px;font-weight:700;margin:0 0 8px}.mobile-panel details{border-top:1px solid var(--line)}.mobile-panel summary{font-weight:650;padding:10px 4px;min-height:44px;cursor:pointer}.mobile-submenu{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 8px;padding-bottom:12px}.mobile-submenu a{padding:8px;min-height:44px;border-radius:6px;color:var(--head);font-size:14px}.mobile-submenu a[aria-current=page]{background:#e9f0ef;color:var(--blue)}.app-link{font-size:13px;padding:8px 10px}.homepage .section{padding-block:36px}.homepage .section:first-child{padding-top:30px}.home-hero,.split-section,.mobile-feature,.story-layout,.edit-wrap,.essay-pair,.reading-layout,.footer-inner{grid-template-columns:1fr}.home-hero{gap:22px}.hero-lead{font-size:16px}.hero-art img{max-height:260px}.visual{min-height:0}.section-image{max-height:210px}.index-grid,.feature-pair,.topic-index{grid-template-columns:1fr}.index-item{padding:16px}.matrix{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.matrix-card{padding:16px;min-height:0}.matrix-card h3{font-size:18px}.matrix-card p{font-size:14px}.feature-card,.story-main,.story-aside,.essay-pair article{padding:18px}.edit-pic{max-width:340px}.phone-figure{justify-content:flex-start}.phone-img{max-height:320px}.mobile-feature{gap:20px}.trust-grid{grid-template-columns:1fr;gap:20px}.page{padding-top:24px;padding-bottom:40px}.page-intro{margin-bottom:25px}.reading-layout{gap:10px}.prose-section{margin-bottom:28px}.prose-section h2{font-size:21px}.deep-note{padding:18px}.sidebar{padding:17px;border-left:0;border-top:2px solid var(--line)}.related-links{grid-template-columns:1fr}.topic-entry{padding:18px}.footer-inner{gap:25px}.footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.footer-bottom{flex-direction:column;gap:4px}.bottom-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:fixed;left:0;right:0;bottom:0;z-index:25;background:#fff;border-top:1px solid var(--line);height:calc(58px + env(safe-area-inset-bottom));padding:0 4px env(safe-area-inset-bottom)}.bottom-nav a{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2px;color:var(--muted);font-size:12px;min-width:0;min-height:44px}.bottom-nav a[aria-current=page]{color:var(--blue);font-weight:700}.nav-dot{width:15px;height:15px;border:2px solid currentColor;border-radius:5px}.bottom-nav a[aria-current=page] .nav-dot{background:currentColor}.footer-bottom{padding-bottom:22px}}
@media(max-width:390px){.brand-img{max-width:48px}.brand{font-size:18px}.header-actions{gap:5px}.app-link{padding:8px 7px}.mobile-toggle{padding:7px}.matrix{grid-template-columns:1fr}.matrix-card{min-height:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}