/* 青绿潮汐 / 自适应只读论坛 */
:root{--primary:#087E78;--primary-deep:#075C58;--teal:#159E98;--mint:#66C7AC;--mint-soft:#E9F8F1;--sea:#3AA8B3;--coral:#DB796C;--amber:#B88128;--lavender:#987EC8;--background:#F7FBFA;--surface:#FFFFFF;--surface-soft:#F0F8F5;--title:#203238;--body:#34484C;--muted:#586B70;--border:#DDEAE6;--footer:#163B3A}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--background);color:var(--body);font:16px/1.75 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;overflow-wrap:break-word}a{color:inherit;text-decoration:none}a:hover{color:var(--primary)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--coral);outline-offset:3px}button,input,select{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto;display:block}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:var(--title);line-height:1.35}h1{font-size:clamp(28px,3.1vw,42px);letter-spacing:-.025em}h2{font-size:clamp(22px,2.2vw,27px)}h3{font-size:19px}p{margin-bottom:16px}.container{width:min(100% - 64px,1280px);margin-inline:auto}.narrow{max-width:780px}.skip{position:absolute;z-index:100;top:-80px;left:10px;background:#fff;padding:12px}.skip:focus{top:8px}.site-header{background:#fff;border-bottom:1px solid var(--border);position:relative;z-index:20}.header-inner{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:11px;min-width:204px}.brand-logo{width:49px;height:49px;display:grid;place-items:center;background:var(--mint-soft);border-radius:14px;font-size:30px;color:var(--primary-deep)}.logo-image{width:46px;height:42px;object-fit:contain}.brand strong{display:block;line-height:1.35;font-size:20px;color:var(--title)}.brand small{display:block;color:var(--muted);font-size:12px;letter-spacing:.09em}.desktop-nav{display:flex;align-items:center;gap:clamp(9px,1.6vw,26px);font-size:14px;font-weight:650}.desktop-nav a{padding:12px 5px;white-space:nowrap;border-bottom:3px solid transparent}.desktop-nav a[aria-current]{color:var(--primary-deep);border-bottom-color:var(--mint)}.header-actions{display:flex;align-items:center;gap:8px}.search-icon,.menu-button,.menu-close{display:grid;place-items:center;min-width:44px;min-height:44px;background:#eff7f4;border:0;border-radius:12px;color:var(--primary-deep);font-size:27px}.menu-button{display:none;font-size:23px}.category-track{border-top:1px solid var(--border);background:var(--surface-soft)}.track-inner{display:flex;gap:22px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap;padding-block:8px}.track-inner a{font-size:13px;font-weight:700;padding:5px 0}.menu-overlay{position:fixed;inset:0;background:#061c1c9c;z-index:28}.mobile-menu{position:fixed;z-index:29;right:0;top:0;bottom:0;width:min(340px,87vw);background:#fff;padding:25px;transform:translateX(110%);transition:transform .22s;box-shadow:-8px 0 36px #0002}.mobile-menu.open{transform:translateX(0)}.mobile-menu:not(.open){visibility:hidden}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.mobile-menu nav{display:grid;gap:4px}.mobile-menu nav a{padding:12px;border-bottom:1px solid var(--border);font-weight:700}.locked{overflow:hidden}.hero{background:linear-gradient(120deg,#075C58,#087E78 58%,#178d90);color:#fff}.hero-grid{min-height:370px;display:grid;grid-template-columns:1.06fr 0.94fr;align-items:center;gap:45px;padding-block:28px}.hero h1{color:#fff;max-width:630px}.hero p{color:#eaf9f6;max-width:580px}.hero-kicker{font-weight:700;letter-spacing:.11em}.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:11px 21px;border:1px solid var(--primary-deep);border-radius:10px;color:#fff;background:var(--primary-deep);font-weight:700;text-align:center}.btn:hover{background:#034d4a;color:#fff}.btn.light{background:#fff;color:var(--primary-deep);border-color:#fff}.btn.outline-light{background:transparent;color:#fff;border-color:#c1e8e5}.btn.ghost{background:#e9f8f1;color:var(--primary-deep);border-color:#9ed5cc}.hero-art{position:relative;min-height:260px;background:linear-gradient(140deg,#2ea89d,#b4e5d3);border:1px solid #ffffff55;border-radius:23px;overflow:hidden}.hero-art img,.hero-art .art-fallback{width:100%;height:280px;object-fit:contain}.hero-note{position:absolute;right:14px;bottom:14px;background:#fff;color:var(--title);padding:10px 17px;border-radius:12px;box-shadow:0 6px 20px #08393733}.hero-note span{display:block;font-size:11px;color:var(--muted)}.hero-note strong{font-size:14px}.art-fallback{display:flex;align-items:center;justify-content:center;min-height:170px;background:radial-gradient(circle at 20% 25%,#cdf4e3,transparent 42%),linear-gradient(130deg,#d5ece7,#a3d8cf);color:var(--primary-deep);padding:24px;font-size:24px;font-weight:800;text-align:center}.art-fallback span{max-width:75%}.section{padding-block:52px}.section-wash{background:#edf6f2}.section-header{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:24px}.section-header h2{margin-bottom:0}.kicker{font-size:12px;letter-spacing:.13em;font-weight:800;color:var(--primary-deep);margin-bottom:9px}.more,.arrow-link{color:var(--primary-deep);font-size:14px;font-weight:800}.more:hover,.arrow-link:hover{text-decoration:underline}.board-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.board-card{border:1px solid var(--border);background:#fff;border-radius:14px;padding:21px;min-height:195px;transition:transform .18s,box-shadow .18s}.board-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px 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a>span:last-child{margin-top:auto;align-self:end;color:var(--primary)}.eyebrow{font-size:12px;color:var(--primary-deep);font-weight:750}.topic-list{background:#fff;border-radius:14px;border:1px solid var(--border);overflow:hidden}.topic-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:21px 24px;border-bottom:1px solid var(--border)}.topic-row:last-child{border-bottom:0}.topic-row h3{font-size:18px;margin:6px 0}.topic-row p{font-size:14px;color:var(--muted);margin:0 0 10px}.topic-row-main{min-width:0}.arrow-link{white-space:nowrap}.tagline{display:flex;flex-wrap:wrap;gap:7px}.tag{display:inline-block;background:#ecf7f3;border:1px solid #d8ebe5;border-radius:99px;padding:2px 10px;font-size:12px;color:var(--primary-deep)}.horizontal-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.horizontal-card{background:#fff;border:1px solid var(--border);border-radius:13px;overflow:hidden;padding-bottom:16px}.horizontal-card .photo,.horizontal-card .art-fallback{aspect-ratio:3/2;object-fit:cover;width:100%}.horizontal-card strong,.horizontal-card p{display:block;margin:15px 17px 0}.horizontal-card strong{color:var(--title)}.horizontal-card p{font-size:13px;color:var(--muted)}.split-section{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.split-section p{max-width:570px}.split-visual{background:#fff;border-radius:15px;padding:12px;border:1px solid var(--border)}.split-visual img,.split-visual .art-fallback{width:100%;aspect-ratio:3/2;object-fit:contain;border-radius:9px}.split-visual a{display:block;padding:10px;color:var(--primary-deep);font-weight:700}.editorial-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.editorial-columns a{background:#fff;border-top:4px solid var(--mint);border-radius:9px;padding:23px;border-bottom:1px solid var(--border)}.editorial-columns strong{display:block;font-size:18px;color:var(--title);margin-bottom:10px}.editorial-columns p{font-size:14px;color:var(--muted);margin:0}.big-number{display:block;font-size:30px;color:var(--primary);font-weight:800;margin-bottom:12px}.compact-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.compact-flow a{padding:19px;border:1px solid var(--border);border-left:4px solid var(--sea);border-radius:11px;background:#fff}.compact-flow span,.compact-flow strong,.compact-flow small{display:block}.compact-flow span{font-size:12px;color:var(--primary-deep)}.compact-flow strong{margin:12px 0;color:var(--title)}.compact-flow small{color:var(--muted)}.timeline-section{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px}.timeline{list-style:none;margin:0;padding:0 0 0 22px;border-left:2px solid var(--mint)}.timeline li{position:relative;padding:0 0 25px 24px}.timeline li:before{content:'';position:absolute;left:-29px;top:8px;width:11px;height:11px;background:var(--primary);border:3px solid #d3f0e4;border-radius:50%}.timeline li strong{display:block;color:var(--title)}.timeline li span,.timeline li p{display:block;color:var(--muted);font-size:14px;margin:4px 0}.timeline.large{padding-top:15px}.timeline.large a{font-size:14px;color:var(--primary-deep);font-weight:700}.lifestyle-strip{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:14px}.lifestyle-strip a{border-radius:14px;min-height:190px;padding:25px;background:linear-gradient(130deg,#e4f4e8,#fefdf3);border:1px solid var(--border)}.lifestyle-strip a:nth-child(2){background:linear-gradient(130deg,#d9f0ed,#e7f2fc)}.lifestyle-strip strong{display:block;font-size:19px;color:var(--title);margin:15px 0 8px}.lifestyle-strip p{font-size:13px;color:var(--muted)}.tag-index{display:flex;flex-wrap:wrap;gap:12px}.tag-index a{padding:12px 16px;background:#fff;border:1px solid var(--border);border-radius:99px;font-size:14px;color:var(--primary-deep);font-weight:700}.service-banner{background:linear-gradient(120deg,#ddf5e9,#eaf4f6);padding:34px;border:1px solid #c5e7dc;border-radius:18px;display:flex;gap:32px;align-items:center;justify-content:space-between}.service-banner h2{margin:0 0 12px}.service-banner p{margin:0;max-width:720px}.service-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}.site-footer{background:var(--footer);color:#d9ebe7;margin-top:35px;padding-top:45px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}.footer-brand{font-size:24px;color:#fff}.footer-grid p{color:#d9ebe7;font-size:14px;max-width:420px;margin-top:13px}.footer-grid h2{font-size:16px;color:#fff;margin-bottom:12px}.footer-grid a{display:block;color:#d9ebe7;margin:7px 0;font-size:14px}.foot-bottom{border-top:1px solid #ffffff33;padding:20px 0;font-size:12px;margin-top:35px}.main-layout{padding-top:43px;padding-bottom:35px;min-height:60vh}.page-intro{max-width:920px;margin-bottom:29px}.page-intro p:last-child{font-size:17px;color:var(--muted)}.page-intro h1{margin-bottom:13px}.board-filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px}.board-filters a{border:1px solid var(--border);background:#fff;padding:7px 13px;border-radius:99px;font-size:13px;font-weight:700}.board-filters a[aria-current]{color:#fff;background:var(--primary-deep)}.two-column{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:24px;align-items:start}.list-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:0 0 15px}.list-heading h2{margin:0}.list-heading span{color:var(--muted);font-size:13px}.sidebar{background:#fff;padding:22px;border:1px solid var(--border);border-radius:14px}.sidebar h2{font-size:17px}.sidebar p{font-size:14px}.sidebar-line{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--border);padding:9px 0;font-size:13px}.sidebar-line span{color:var(--muted)}.sidebar hr{border:0;border-top:1px solid var(--border);margin:20px 0}.pagination{display:flex;justify-content:center;gap:7px;flex-wrap:wrap;margin-top:24px}.pagination a,.pagination span{border-radius:8px;min-width:40px;min-height:44px;display:grid;place-items:center;padding:7px 11px;background:#fff;border:1px solid var(--border);font-size:14px}.pagination .current{background:var(--primary-deep);color:#fff;border-color:var(--primary-deep)}.thread-main{padding-block:24px 50px}.breadcrumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap}.thread-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(210px,1fr);gap:28px;align-items:start}.thread-paper{background:#fff;border:1px solid var(--border);border-radius:16px;padding:clamp(20px,3vw,42px)}.thread-label{font-size:13px;font-weight:800;color:var(--primary-deep);margin-bottom:12px}.thread-label span{padding:3px 9px;border-radius:6px;background:var(--mint-soft)}.thread-paper h1{font-size:clamp(27px,2.8vw,38px)}.thread-lead{font-size:18px;color:var(--muted)}.thread-cover{margin:26px 0;border-radius:12px;overflow:hidden;background:var(--mint-soft)}.thread-cover .photo,.thread-cover .art-fallback{aspect-ratio:16/9;object-fit:contain;width:100%}.thread-paper h2{font-size:23px;margin:30px 0 15px}.prose p{line-height:1.85;font-size:16px;margin:0 0 20px}.discussion{background:#f0f8f5;padding:18px 24px;border-radius:13px}.discussion h2{margin:0 0 12px}.discussion li{margin:8px 0}.discussion p,.source-note p{font-size:14px;color:var(--muted)}.source-note{border-left:4px solid var(--mint);padding-left:20px}.thread-nav{display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--border);padding-top:18px;margin-top:25px;font-size:14px;font-weight:700;color:var(--primary-deep)}.related-card{display:block;border-top:1px solid var(--border);padding:15px 0}.related-card strong,.related-card small{display:block}.related-card strong{font-size:14px}.related-card small{font-size:12px;color:var(--muted);margin-top:7px}.search-form{background:#fff;border:1px solid var(--border);border-radius:13px;padding:24px;margin-bottom:30px}.search-form label{display:block;font-weight:700;margin-bottom:10px}.search-controls{display:grid;grid-template-columns:minmax(0,1fr) 180px auto;gap:10px}.search-controls input,.search-controls select{min-height:48px;width:100%;min-width:0;padding:10px 12px;border-radius:8px;border:1px solid #b6cbc6;background:#fff;color:var(--title)}.search-empty{background:#fff;border:1px solid var(--border);border-radius:14px;padding:35px;margin:20px 0}.search-empty h2{font-size:22px}.pulse-feature{display:grid;grid-template-columns:1fr 1fr;gap:35px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:16px;align-items:center}.pulse-feature h2{font-size:25px}.pulse-feature img,.pulse-feature .art-fallback{aspect-ratio:16/9;width:100%;object-fit:contain}.guide-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(240px,.8fr);gap:20px}.guide-panel,.guide-aside{background:#fff;border:1px solid var(--border);border-radius:14px;padding:24px}.guide-step{display:flex;gap:18px;margin:22px 0}.guide-step>span{color:var(--primary);font-size:23px;font-weight:800}.guide-step h3{font-size:18px;margin-bottom:7px}.guide-step p{font-size:14px}.guide-aside h2{font-size:20px}.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.rule-grid article{background:#fff;border:1px solid var(--border);border-top:4px solid var(--mint);border-radius:12px;padding:21px}.reading-link{padding:25px;border-radius:12px;background:var(--mint-soft);margin-top:30px}.about-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:26px}.about-nav{display:flex;flex-direction:column;align-self:start;position:sticky;top:15px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px}.about-nav a{padding:8px;font-size:14px;color:var(--primary-deep)}.about-sections section{background:#fff;border:1px solid var(--border);border-radius:13px;margin-bottom:14px;padding:26px;scroll-margin-top:20px}.about-sections h2{margin-bottom:12px}.error-page{min-height:50vh;padding:75px 0}
@media(max-width:1050px){.desktop-nav{gap:8px;font-size:13px}.brand{min-width:170px}.brand strong{font-size:18px}.container{width:min(100% - 48px,1280px)}.board-grid{grid-template-columns:repeat(2,1fr)}.compact-flow{grid-template-columns:repeat(2,1fr)}.thread-layout{grid-template-columns:minmax(0,1fr) 230px}}
@media(max-width:800px){.desktop-nav{display:none}.menu-button{display:grid}.hero-grid{grid-template-columns:1fr;gap:18px;padding-block:36px}.hero-art{min-height:180px}.hero-art img,.hero-art .art-fallback{height:190px}.hero{min-height:unset}.feature-layout,.split-section,.timeline-section,.pulse-feature,.guide-layout,.thread-layout,.two-column,.about-layout{grid-template-columns:1fr}.thread-aside{order:2}.horizontal-cards,.editorial-columns,.rule-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lifestyle-strip{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.about-nav{position:static;flex-flow:row wrap}.about-nav a{padding:8px}.service-banner{align-items:flex-start;flex-direction:column}.header-inner{min-height:70px}}
@media(max-width:520px){.container{width:calc(100% - 34px)}.brand{min-width:0}.brand strong{font-size:17px}.brand small{font-size:11px}.brand-logo{width:42px;height:42px}.section{padding-block:36px}.section-header{align-items:flex-start}.section-header .more{max-width:105px;text-align:right}.board-grid{gap:9px}.board-card{padding:14px;min-height:190px}.board-card strong{font-size:15px}.board-card p{font-size:12px}.board-card small{font-size:11px}.horizontal-cards,.editorial-columns,.rule-grid,.lifestyle-strip{grid-template-columns:1fr}.compact-flow{grid-template-columns:1fr 1fr}.feature-main h3{font-size:21px}.topic-row{padding:18px;display:block}.arrow-link{display:inline-block;margin-top:13px}.thread-paper{padding:19px}.thread-lead{font-size:16px}.thread-paper h1{font-size:28px}.search-controls{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:12px}.hero-buttons{gap:8px}.btn{padding:10px 15px}.service-banner{padding:22px}.guide-panel,.guide-aside,.sidebar{padding:19px}.page-intro p:last-child{font-size:15px}}
@media(max-width:350px){.compact-flow{grid-template-columns:1fr}.brand small{display:none}.section-header{display:block}.section-header .more{display:inline-block;max-width:none;margin-top:12px}.hero-buttons .btn{width:100%}}