:root{--blue:#1677EE;--bright:#3395FF;--deep:#075FC6;--dark:#0A315E;--footer:#071D37;--ink:#16243A;--body:#3C485A;--muted:#6B7787;--soft:#929BA8;--ice:#F7FAFF;--pale:#EDF5FF;--pale2:#E5F1FF;--border:rgba(22,119,238,.12);--shadow:0 12px 34px rgba(30,72,120,.08);--brandshadow:0 14px 40px rgba(22,119,238,.14)}
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.hero-home{padding:34px 0 24px;background:linear-gradient(180deg,#f6faff,#fff)}.hero-banner{aspect-ratio:16/7;max-height:520px;position:relative;overflow:hidden;border-radius:30px;background:linear-gradient(135deg,#dcecff,#f9fbff 48%,#b9dcff);border:1px solid var(--border);box-shadow:var(--brandshadow)}.hero-banner img{width:100%;height:100%;object-fit:contain}.hero-banner:after{content:"海角社区 · HAI JIAO";position:absolute;left:28px;bottom:24px;padding:12px 16px;border-radius:14px;background:rgba(10,49,94,.82);color:#fff;font-size:14px;letter-spacing:.06em}.hero-links{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.hero-link{min-height:88px;padding:18px 20px;display:flex;flex-direction:column;justify-content:center;border-radius:20px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow)}.hero-link strong{color:var(--ink);font-size:18px}.hero-link span{color:var(--muted);font-size:14px}.hero-link:hover,.hero-link:focus-visible{border-color:rgba(22,119,238,.3);transform:translateY(-2px)}
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.timeline-four{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.time-card{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.time-card small{color:var(--blue);font-weight:700}.time-card h3{margin:6px 0 10px;color:var(--ink);font-size:20px}
.route-line{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}.route-step{padding:20px 14px;border-radius:20px;background:var(--pale);border:1px solid var(--border)}.route-step strong{display:block;margin-bottom:8px;color:var(--ink)}
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.question-grid,.principle-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 30px}.culture-grid,.two-column-mag{display:grid;grid-template-columns:1.15fr .85fr;gap:38px}.culture-feature{padding:34px;border-radius:28px;background:var(--dark);color:#DCEEFF}.culture-feature h3{margin:8px 0 12px;color:#fff;font-size:28px}.mag-aside{padding-left:30px;border-left:1px solid var(--border)}.mag-aside h2{color:var(--ink);font-size:24px}
.story-main{max-width:820px}.story-main h2{color:var(--ink);font-size:32px;line-height:1.3}.story-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px}.story-rail article{padding:20px;border-radius:20px;background:var(--pale);border:1px solid var(--border)}.story-rail h3{margin:0 0 8px;color:var(--ink);font-size:18px}
.topic-list{display:grid;gap:12px}.topic-question{display:grid;grid-template-columns:56px 1fr 130px;gap:18px;align-items:center;padding:22px;border-radius:20px;background:#fff;border:1px solid var(--border)}.topic-question .num{color:var(--blue);font-size:28px;font-weight:800}.topic-question h3{margin:0;color:var(--ink);font-size:20px}.topic-question p{margin:4px 0 0}.topic-question a{color:var(--blue);font-weight:700}
.guide-index{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.guide-card h3{margin:0 0 10px;color:var(--ink);font-size:20px}
.album-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}.media-slot{min-height:190px;position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#e5f1ff,#fff);border:1px solid var(--border)}.media-slot:after{content:"";position:absolute;left:18px;right:18px;bottom:18px;height:1px;background:rgba(22,119,238,.14)}.media-wide{grid-column:span 12;aspect-ratio:16/6}.media-medium{grid-column:span 6;aspect-ratio:4/3}.media-small{grid-column:span 4;aspect-ratio:4/3}.media-label{position:absolute;left:18px;top:16px;padding:8px 11px;border-radius:12px;background:rgba(255,255,255,.86);color:var(--ink);font-size:14px}
.pulse-list{display:grid;gap:10px}.info-strip{display:grid;grid-template-columns:150px 1fr;gap:24px}.info-strip strong{color:var(--ink)}
.app-preview-image{min-height:420px;max-height:520px;display:grid;place-items:center;overflow:hidden;border-radius:30px;background:linear-gradient(150deg,var(--dark),var(--blue));border:1px solid var(--border)}.app-preview-image img{width:100%;height:100%;max-height:520px;object-fit:contain}.app-icon-row{display:flex;align-items:center;gap:14px;margin-bottom:18px}.app-icon-slot{width:64px;height:64px;border-radius:18px}
.safe-grid,.privacy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.safe-item{padding:22px;border-radius:20px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}.safe-item h3{margin:0 0 8px;color:#fff}.privacy-item{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--border)}.privacy-item h3{margin:0 0 8px;color:var(--ink)}
.route-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.route-note{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--border)}.interest-index{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.interest-item{padding:24px;border-radius:22px;background:#fff;border:1px solid var(--border)}.interest-item h2{margin:0 0 8px;color:var(--ink);font-size:21px}.interest-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:15px}.interest-meta div{padding:12px;border-radius:14px;background:var(--ice)}
.faq-list details{padding:18px 0;border-top:1px solid var(--border)}.faq-list details:last-child{border-bottom:1px solid var(--border)}.faq-list summary{cursor:pointer;color:var(--ink);font-size:18px;font-weight:700}.faq-list p{margin:10px 0 0}.about-visual{aspect-ratio:16/8;overflow:hidden;margin-top:28px;border-radius:28px;background:linear-gradient(145deg,#dcecff,#fff);border:1px solid var(--border)}.about-visual img{width:100%;height:100%;object-fit:cover}.contact-note{padding:26px;border-radius:22px;background:var(--pale);border:1px solid var(--border)}
.site-footer{padding:56px 0 24px;background:var(--footer);color:#DCEEFF;border-top:1px solid rgba(180,220,255,.28)}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:34px}.footer-brand-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}.footer-logo-slot{width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}.footer-brand-row strong{display:block;color:#fff}.footer-brand-row small{color:#DCEEFF}.footer-brand p{margin:0;max-width:430px;color:#DCEEFF}.site-footer nav h2{margin:0 0 12px;color:#fff;font-size:15px}.site-footer nav a{display:block;min-height:36px;color:#DCEEFF;font-size:14px}.site-footer nav a:hover,.site-footer nav a:focus-visible{color:#fff;text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}.footer-bottom div{display:flex;gap:18px}
.channel-drawer,.search-panel{position:fixed;z-index:120;visibility:hidden;pointer-events:none;opacity:0;transition:opacity .2s ease,transform .2s ease}.channel-drawer{top:86px;left:50%;width:min(1240px,calc(100% - 48px));padding:28px;transform:translate(-50%,-10px);background:#fff;border:1px solid var(--border);border-radius:28px;box-shadow:0 30px 80px rgba(7,29,55,.22)}.channel-drawer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translate(-50%,0)}.drawer-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--ink)}.drawer-brand div{display:flex;flex-direction:column}.drawer-logo-slot{width:44px;height:44px;border-radius:14px}.close-button{width:44px;height:44px;border-radius:14px;border:1px solid var(--border);background:#fff;color:var(--ink);font-size:24px}.mega-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}.mega-grid h2{margin:0 0 10px;color:var(--ink);font-size:15px}.mega-grid a{display:flex;align-items:center;min-height:40px;color:#4A586B;font-size:14px}.mega-grid a:hover,.mega-grid a:focus-visible{color:var(--blue)}.search-panel{inset:0;display:grid;place-items:start center;padding:120px 24px 24px;transform:translateY(-10px)}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{width:min(760px,100%);padding:28px;background:#fff;border:1px solid var(--border);border-radius:28px;box-shadow:0 30px 80px rgba(7,29,55,.24)}.search-head h2{margin:3px 0 0;color:var(--ink)}.search-form label{display:block;margin-bottom:8px;color:var(--ink);font-weight:700}.search-row{display:grid;grid-template-columns:1fr auto;gap:10px}.search-row input{min-height:50px;padding:0 16px;border:1px solid rgba(22,119,238,.22);border-radius:15px;color:var(--ink);outline:none}.search-row input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,119,238,.1)}.search-row button{min-height:50px;padding:0 18px;border:0;border-radius:15px;background:linear-gradient(135deg,#3998FF 0%,#1677EE 55%,#075FC6 100%);color:#fff;font-weight:700}.search-links{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}.search-links a{padding:9px 12px;border-radius:999px;background:var(--pale);color:#31435A;font-size:14px}.panel-overlay{position:fixed;inset:0;z-index:110;visibility:hidden;pointer-events:none;opacity:0;background:rgba(7,29,55,.42);transition:opacity .2s ease}.panel-overlay.is-open{visibility:visible;pointer-events:auto;opacity:1}.panel-open{overflow:hidden}
@media(max-width:1279px){.shell{width:min(1180px,calc(100% - 40px))}.desktop-nav{gap:10px}.brand-island{min-width:165px}.primary-nav a,.nav-tools a,.tool-button{padding:0 9px}.footer-grid{grid-template-columns:1.4fr repeat(4,1fr);gap:24px}}
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@media(max-width:767px){.shell,.content-shell,.narrow{width:calc(100% - 32px)}.section{padding:56px 0}.page-intro{padding:48px 0 34px}.page-intro h1{font-size:clamp(28px,8vw,34px)}.page-intro p{font-size:16px}.section-heading{display:block}.section-heading h2{font-size:26px}.section-heading p{margin-top:10px}.hero-home{padding-top:18px}.hero-banner{aspect-ratio:16/10;border-radius:22px}.hero-banner:after{left:16px;right:16px;bottom:14px;text-align:center;font-size:12px}.hero-links{grid-template-columns:repeat(2,1fr)}.editorial-grid{grid-template-columns:1fr;grid-template-areas:"lead" "mid1" "mid2" "short"}.short-stack{grid-template-columns:1fr}.feature-lead{min-height:300px;padding:24px}.feature-lead h3{font-size:26px}.timeline-four,.text-grid,.question-grid,.principle-grid,.interest-index{grid-template-columns:1fr}.route-line{grid-template-columns:repeat(2,1fr)}.route-notes{grid-template-columns:1fr}.topic-question{grid-template-columns:48px 1fr}.topic-question a{grid-column:2}.guide-index,.safe-grid,.privacy-grid{grid-template-columns:1fr}.album-grid{grid-template-columns:1fr}.media-wide,.media-medium,.media-small{grid-column:auto;aspect-ratio:16/10}.info-strip{grid-template-columns:1fr;gap:5px}.app-preview-image{min-height:360px}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1;grid-row:auto}.footer-bottom{display:block;padding-bottom:70px}.footer-bottom div{margin-top:10px;flex-wrap:wrap}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:75;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(30,72,120,.08)}.mobile-bottom-nav a{display:grid;place-items:center;min-height:54px;color:#536174;font-size:13px}.mobile-bottom-nav a:hover,.mobile-bottom-nav a:focus-visible{color:var(--blue);background:var(--pale)}.search-panel{padding:80px 16px 20px}.search-card{padding:22px}.search-row{grid-template-columns:1fr}.mega-grid{grid-template-columns:1fr}.story-rail{grid-template-columns:1fr}.mag-aside{padding-left:0;padding-top:22px;border-left:0;border-top:1px solid var(--border)}}
@media(max-width:559px){.mobile-nav{padding:0 10px}.mobile-brand strong{font-size:15px}.hero-links,.route-line,.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.interest-meta{grid-template-columns:1fr}.app-preview-image{min-height:320px}.app-preview-image img{max-width:320px}.topic-question{padding:18px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}