/* 果冻视频：为中文长阅读设计的深色影像编辑界面 */
:root{--canvas:#10151d;--surface:#19212d;--surface-soft:#1e2935;--surface-raised:#25313d;--line:#35414c;--line-soft:#2b3540;--text:#f4f1e9;--text-soft:#c5c7c8;--muted:#98a1a8;--accent:#edbd79;--accent-bright:#ffcf88;--accent-dim:#7c6347;--accent-secondary:#a7c6c0;--ink:#10151d;--radius:12px;--radius-lg:24px;--content:1232px;--gutter:clamp(22px,4vw,62px);--transition:220ms ease;--shadow:0 28px 75px rgba(0,0,0,.18)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;min-width:320px;background:var(--canvas);color:var(--text);font:16px/1.8 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}::selection{background:var(--accent);color:var(--ink)}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:hover{color:var(--accent-bright)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}p,h1,h2,h3,h4,figure{margin-top:0}p{color:var(--text-soft)}h1,h2,h3,h4{line-height:1.22;letter-spacing:-.035em;font-weight:650}h1{font-size:clamp(2.75rem,6.5vw,6rem)}h2{font-size:clamp(2rem,4vw,3.7rem)}h3{font-size:clamp(1.2rem,1.6vw,1.65rem)}small{font-size:.8125rem}.wrap{width:min(var(--content),calc(100% - var(--gutter)*2));margin-inline:auto}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:fixed;top:10px;left:10px;z-index:999;background:var(--accent);padding:10px 18px;color:var(--ink);transform:translateY(-150%)}.skip-link:focus{transform:none}.site-shell{overflow:hidden}.eyebrow{font-size:.7rem;letter-spacing:.22em;color:var(--accent);font-weight:750;text-transform:uppercase;line-height:1.5}.lead{font-size:clamp(1.08rem,2vw,1.33rem);line-height:1.85;color:var(--text-soft);max-width:780px}.pulse{display:inline-block;width:8px;height:8px;margin-right:10px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 5px rgba(237,189,121,.12)}.masthead{position:relative;z-index:10;border-bottom:1px solid var(--line-soft);background:rgba(16,21,29,.95)}.masthead__inner{min-height:94px;display:flex;justify-content:space-between;align-items:center;gap:30px}.identity{display:inline-flex;align-items:center;gap:11px;white-space:nowrap}.identity__mark{font-size:2.5rem;line-height:1;color:var(--accent);transform:rotate(15deg)}.identity__name{font-size:1.34rem;letter-spacing:.03em;font-weight:800}.identity__descriptor{color:var(--muted);font-size:.62rem;letter-spacing:.15em;border-left:1px solid var(--line);padding-left:12px;margin-left:2px}.primary-nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,34px)}.primary-nav a{display:inline-block;position:relative;font-size:.9rem;color:var(--text-soft);padding:32px 0;transition:color var(--transition);white-space:nowrap}.primary-nav a::after{content:"";height:2px;background:var(--accent);left:0;right:100%;bottom:22px;position:absolute;transition:right var(--transition)}.primary-nav a:hover,.primary-nav a[aria-current="page"]{color:var(--text)}.primary-nav a:hover::after,.primary-nav a[aria-current="page"]::after{right:0}.nav-toggle{display:none;border:1px solid var(--line);color:var(--text);background:var(--surface);width:46px;height:44px;align-items:center;justify-content:center;border-radius:7px;cursor:pointer}.nav-toggle__bars,.nav-toggle__bars::before,.nav-toggle__bars::after{display:block;width:20px;height:2px;background:currentColor;position:relative;transition:transform var(--transition)}.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0}.nav-toggle__bars::before{top:-6px}.nav-toggle__bars::after{top:6px}.nav-toggle[aria-expanded="true"] .nav-toggle__bars{background:transparent}.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg);background:var(--text)}.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg);background:var(--text)}.button{display:inline-flex;min-height:54px;align-items:center;justify-content:space-between;gap:24px;padding:12px 25px;border:1px solid transparent;border-radius:2px;font-size:.91rem;font-weight:700;letter-spacing:.025em;transition:color var(--transition),background var(--transition),transform var(--transition),border-color var(--transition)}.button:hover{transform:translateY(-2px)}.button--primary{background:var(--accent);color:var(--ink)}.button--primary:hover{background:var(--accent-bright);color:var(--ink)}.button--ghost{border-color:var(--line);background:transparent;color:var(--text)}.button--ghost:hover,.button--outline:hover{border-color:var(--accent);color:var(--accent)}.button--outline{border-color:var(--line);color:var(--text);background:var(--surface)}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:.91rem;font-weight:730;line-height:1.7;border-bottom:1px solid rgba(237,189,121,.55);padding-bottom:5px;transition:gap var(--transition),border-color var(--transition)}.text-link:hover{gap:16px;border-color:var(--accent-bright)}
/* 首页，画面和正文保持非对称比例，避免封面列表挤压主要阅读 */
.hero{display:grid;grid-template-columns:minmax(0,1.06fr) minmax(300px,.94fr);gap:clamp(24px,5vw,86px);align-items:center;padding-block:clamp(58px,7.7vw,118px) 105px}.hero__copy{position:relative;z-index:2}.hero .eyebrow{margin-bottom:32px}.hero h1{line-height:1.19;max-width:780px;margin-bottom:30px;font-weight:750;letter-spacing:-.065em}.hero h1 em{display:block;color:var(--accent);font-style:normal}.hero__lead{font-size:1.12rem;line-height:2.05;max-width:565px;margin-bottom:36px}.hero__actions{display:flex;flex-wrap:wrap;gap:12px}.hero__art{position:relative;min-width:0;padding:8px 35px 18px 4px}.hero__art::before{position:absolute;content:"";width:72%;height:66%;right:-15%;top:9%;background:#29333b;filter:blur(70px);opacity:.65}.hero__frame{position:relative;aspect-ratio:4/4.5;background:linear-gradient(145deg,#30373c,#19232b);overflow:hidden;box-shadow:var(--shadow)}.hero__frame::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(to top,rgba(8,12,18,.73),transparent 37%)}.hero__frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.8);transition:transform 800ms ease}.hero__frame:hover img{transform:scale(1.035)}.frame-index{position:absolute;bottom:23px;left:26px;z-index:2;font-size:.7rem;letter-spacing:.15em;color:white;font-weight:650}.hero__side{position:absolute;right:-13px;top:16%;writing-mode:vertical-rl;letter-spacing:.26em;font-size:.66rem;color:var(--accent)}.hero__side span{margin-top:14px}.chapter-strip{border-block:1px solid var(--line);background:var(--surface)}.chapter-strip__inner{min-height:108px;display:flex;justify-content:space-between;align-items:center;gap:25px}.chapter-strip__inner>span{font-size:.63rem;letter-spacing:.14em;color:var(--muted);white-space:nowrap}.chapter-strip__inner p{color:var(--text);margin:0;font-size:clamp(.98rem,1.7vw,1.23rem);font-weight:600;text-align:center;letter-spacing:.02em}.section-kicker{display:flex;gap:20px;align-items:center;color:var(--accent);font-size:.74rem;letter-spacing:.15em;font-weight:700;border-top:1px solid var(--line);padding-top:19px;margin-bottom:48px}.section-kicker span:first-child{width:40px;height:40px;border:1px solid var(--accent-dim);border-radius:50%;display:flex;align-items:center;justify-content:center}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:48px}.section-heading h2{margin-bottom:0}.section-heading>.eyebrow,.section-heading .eyebrow{margin-bottom:12px}.section-heading>p{max-width:420px;margin:0 0 6px;line-height:1.95;font-size:1rem}.feature-section{padding-block:125px 115px}.feature-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(24px,4vw,65px);align-items:start}.feature-visual{position:relative;min-height:530px;background:var(--surface-soft);overflow:hidden}.feature-visual img{width:100%;height:100%;min-height:530px;object-fit:cover;filter:saturate(.75)}.image-caption{position:absolute;left:0;bottom:0;background:var(--accent);padding:15px 22px;color:var(--ink);font-size:.8rem;font-weight:650}.feature-reading{padding-top:2px}.feature-reading .story-card{padding:0 0 25px;margin-bottom:25px;border-bottom:1px solid var(--line-soft);background:transparent}.feature-reading .story-card h3{font-size:clamp(1.2rem,2vw,1.63rem)}.feature-reading .story-card:last-of-type{margin-bottom:34px}.story-card{min-width:0;padding:31px 29px 28px;background:var(--surface);border:1px solid var(--line-soft);transition:border-color var(--transition),transform var(--transition),background var(--transition)}.story-card:hover{background:#212b37;border-color:#66727c;transform:translateY(-3px)}.story-card__meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.72rem;color:var(--muted);margin-bottom:18px;letter-spacing:.02em}.tag{color:var(--accent);font-weight:700;white-space:nowrap}.story-card h3{letter-spacing:-.018em;line-height:1.43;margin-bottom:12px}.story-card h3 a{color:var(--text)}.story-card h3 a:hover{color:var(--accent)}.story-card p{font-size:.91rem;line-height:1.85;margin-bottom:23px}.story-card .text-link{font-size:.82rem}.editorial-band{background:#283540;position:relative;margin-block:35px 118px}.editorial-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.035) 1px,transparent 1px);background-size:10px 10px;opacity:.3;pointer-events:none}.editorial-band__inner{display:grid;grid-template-columns:1fr 1fr;gap:10%;align-items:center;min-height:580px;position:relative}.editorial-band__inner>div:first-child{padding-block:80px}.editorial-band h2{margin-block:20px 25px}.editorial-band h2 i{font-weight:420;font-style:normal;color:var(--accent-secondary)}.editorial-band p:not(.eyebrow){max-width:485px;line-height:1.95;font-size:1.02rem;margin-bottom:30px}.editorial-band__photo{height:100%;min-height:580px;background:#3e4342;position:relative;overflow:hidden}.editorial-band__photo::after{content:"";position:absolute;inset:0;border:14px solid rgba(16,21,29,.12);pointer-events:none}.editorial-band__photo img{height:100%;width:100%;object-fit:cover}.field-notes{padding-bottom:116px}.story-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.story-grid .story-card{display:flex;flex-direction:column;min-height:340px}.story-grid .story-card .text-link{margin-top:auto;align-self:flex-start}.closing-section{border-block:1px solid var(--line);padding-block:73px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:38px;margin-bottom:115px}.closing-section__symbol{font-size:5.9rem;color:var(--accent);line-height:1}.closing-section h2{font-size:clamp(1.65rem,3vw,2.8rem);margin-bottom:10px}.closing-section p:last-child{margin-bottom:0}.closing-section .button{white-space:nowrap}
/* 分类频道提供独立页面视觉，避免把首页英雄区机械复用到栏目 */
.page-heading{padding-block:95px 75px;max-width:var(--content)}.page-heading .eyebrow{margin-bottom:23px}.page-heading h1{font-size:clamp(2.8rem,5.3vw,5.3rem);max-width:1060px;margin-bottom:28px;letter-spacing:-.05em}.page-heading .lead{max-width:765px;margin-bottom:0}.category-showcase{display:grid;grid-template-columns:1.3fr .7fr;gap:clamp(30px,6vw,90px);align-items:center;margin-bottom:115px}.category-showcase__figure{background:var(--surface-raised);min-height:360px;position:relative}.category-showcase__figure img{width:100%;height:100%;max-height:510px;object-fit:cover}.category-showcase h2{font-size:clamp(2rem,3.4vw,3.4rem);margin:18px 0 25px}.category-showcase p:not(.eyebrow){font-size:1rem;line-height:2}.listing-section{padding-bottom:112px}.list-heading{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:34px}.list-heading h2{font-size:clamp(1.6rem,2.5vw,2.5rem);margin:0}.list-heading span{font-size:.76rem;color:var(--muted);letter-spacing:.04em}.story-grid--large{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.story-grid--large .story-card{min-height:285px;padding:32px 38px}.story-grid--large .story-card h3{font-size:1.6rem;max-width:510px}.story-grid--large .story-card p{max-width:525px}.crosslink{padding:47px 50px;border:1px solid var(--line);border-left:4px solid var(--accent);display:flex;justify-content:space-between;align-items:center;gap:35px;margin-bottom:115px;background:var(--surface)}.crosslink h2{font-size:clamp(1.5rem,2.5vw,2.3rem);margin-bottom:14px}.crosslink p{margin-bottom:0;max-width:660px;line-height:1.9}.crosslink>.text-link{white-space:nowrap}.viewing-layout{display:grid;grid-template-columns:minmax(260px,.78fr) minmax(0,1.22fr);gap:clamp(35px,7vw,100px);margin-bottom:120px;align-items:center}.viewing-layout__visual{background:var(--surface-raised);height:600px;position:relative;overflow:hidden}.viewing-layout__visual img{width:100%;height:100%;object-fit:cover}.visual-label{position:absolute;right:0;bottom:0;padding:14px 24px;background:var(--accent);color:var(--ink);font-size:.7rem;font-weight:750;letter-spacing:.15em}.viewing-layout__body h2{font-size:clamp(2rem,3vw,3.1rem);margin-bottom:27px}.viewing-layout__body>p{font-size:1.03rem;line-height:2;max-width:650px}.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:32px 0 36px}.quality-grid>div{border-top:2px solid var(--accent-dim);padding:20px 5px 12px 0}.quality-grid b{display:block;font-size:1.45rem;color:var(--accent);letter-spacing:-.02em;margin-bottom:9px}.quality-grid span{display:block;font-size:.84rem;color:var(--muted);line-height:1.7}.safety-note{background:#24332f;border:1px solid #3c514b;display:flex;align-items:center;justify-content:space-between;gap:38px;padding:48px 55px;margin-bottom:110px}.safety-note h2{font-size:clamp(1.5rem,2.5vw,2.4rem);max-width:720px}.safety-note p:last-child{margin-bottom:0;max-width:650px}.safety-note .button{white-space:nowrap}.creator-hero{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:clamp(35px,6vw,90px);margin-bottom:115px}.creator-hero>div:first-child{background:#2b3335;min-height:440px}.creator-hero img{width:100%;min-height:440px;object-fit:cover}.creator-hero h2{font-size:clamp(2rem,3.3vw,3.3rem);margin-block:18px 29px}.creator-hero p:not(.eyebrow){line-height:2;font-size:1.02rem;margin-bottom:35px}
/* 问题页使用阅读优先的窄行宽与原生 details，停用脚本仍然可操作 */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:70px;align-items:start;padding-bottom:140px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line);padding:0 0 0 2px}.faq-item summary{cursor:pointer;list-style:none;display:grid;grid-template-columns:50px 1fr 18px;gap:15px;align-items:center;padding:28px 0;font-size:clamp(1rem,1.5vw,1.2rem);font-weight:650;line-height:1.6}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";font-size:1.5rem;font-weight:350;line-height:1;color:var(--accent);transition:transform var(--transition)}.faq-item[open] summary::after{transform:rotate(45deg)}.faq-item summary>span{font-size:.78rem;font-weight:500;color:var(--accent);font-variant-numeric:tabular-nums}.faq-answer{padding:0 20px 28px 65px;max-width:820px}.faq-answer p{font-size:.96rem;line-height:2.05;margin:0}.faq-aside{position:sticky;top:40px}.faq-aside__inner{background:var(--surface);border:1px solid var(--line);padding:35px}.faq-aside h2{font-size:1.7rem}.faq-aside p:not(.eyebrow){font-size:.89rem}.faq-aside a{display:block;padding:10px 0;border-bottom:1px solid var(--line);color:var(--accent);font-size:.9rem}.faq-aside a:hover{color:var(--accent-bright)}.legal-content{max-width:850px;margin-bottom:145px}.legal-content h2{font-size:1.7rem;margin:45px 0 20px}.legal-content h2:first-child{margin-top:0}.legal-content p{line-height:2.2;font-size:1.05rem}.legal-return{display:flex;gap:35px;flex-wrap:wrap;margin-top:60px;padding-top:24px;border-top:1px solid var(--line)}
/* 长文章结构：正文目录独立，单栏文字不被边栏压缩 */
.article-page{padding-bottom:105px}.article-head{padding-block:65px 65px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:.78rem;color:var(--muted);margin-bottom:65px}.breadcrumbs a:hover{color:var(--accent)}.breadcrumbs span:nth-child(even){color:var(--accent-dim)}.article-head__copy{max-width:950px;margin-inline:auto}.article-head h1{font-size:clamp(2.5rem,5vw,5rem);letter-spacing:-.045em;line-height:1.26;margin-block:23px 32px}.article-head .lead{font-size:clamp(1.05rem,1.8vw,1.28rem);max-width:820px}.byline{border-top:1px solid var(--line);margin-top:37px;padding-top:20px;display:flex;gap:35px;color:var(--muted);font-size:.8rem}.article-layout{display:grid;grid-template-columns:minmax(0,750px) minmax(210px,280px);gap:clamp(40px,8vw,120px);justify-content:center;align-items:start}.article-body{min-width:0}.article-intro{font-size:1.27rem;line-height:2;letter-spacing:.018em;color:var(--text);font-weight:500;padding-bottom:44px;margin-bottom:58px;border-bottom:1px solid var(--line)}.article-body section{scroll-margin-top:70px;margin-bottom:65px}.article-section-number{font-size:.77rem;letter-spacing:.2em;color:var(--accent);font-weight:700;margin-bottom:14px}.article-body h2{font-size:clamp(1.55rem,2.5vw,2.3rem);line-height:1.4;margin-bottom:22px}.article-body section>p{font-size:1.08rem;line-height:2.28;letter-spacing:.012em;color:#cfd1d1}.article-conclusion{display:grid;grid-template-columns:42px 1fr;gap:15px;align-items:start;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px 0;margin-top:75px}.article-conclusion span{font-size:2rem;color:var(--accent);line-height:1.5}.article-conclusion p{font-size:1.02rem;line-height:2;margin:0}.article-return{margin-top:38px}.article-rail{position:sticky;top:35px}.rail-card{border-left:1px solid var(--line);padding-left:28px}.rail-card h2{font-size:1.3rem;margin:0 0 24px}.rail-card ol{padding-left:17px;margin:0}.rail-card li{font-size:.87rem;color:var(--muted);padding-left:5px;margin-bottom:15px;line-height:1.8}.rail-card li::marker{color:var(--accent-dim)}.rail-card a:hover{color:var(--accent)}.related-section{padding-bottom:140px}.related-section .story-grid{grid-template-columns:repeat(3,1fr)}.missing{min-height:63vh;padding-block:150px 160px}.missing h1{font-size:clamp(2.4rem,5.6vw,5.8rem);margin:25px 0}.missing p:not(.eyebrow){max-width:570px;font-size:1.13rem;line-height:2;margin-bottom:35px}
/* 页脚包含主题导航与网站运行说明入口 */
.site-footer{border-top:1px solid var(--line);background:#0c1118}.footer-grid{display:grid;grid-template-columns:1.7fr .65fr .65fr;gap:clamp(35px,7vw,120px);padding-top:87px;padding-bottom:75px}.footer-brand{font-size:1.45rem;font-weight:750;letter-spacing:.025em}.footer-brand span{color:var(--accent);margin-left:6px}.footer-grid p{font-size:.88rem;max-width:420px;line-height:2;margin:23px 0 0}.footer-grid h2{font-size:.85rem;font-weight:750;letter-spacing:.08em;margin:4px 0 22px;color:var(--text)}.footer-grid>div:not(:first-child) a{display:block;font-size:.85rem;padding:5px 0;color:var(--muted)}.footer-grid>div:not(:first-child) a:hover{color:var(--accent)}.footer-bottom{padding-block:23px;border-top:1px solid var(--line-soft);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.73rem;letter-spacing:.04em}
/* 交互辅助样式，与 JS 仅用于增强，不承担 SEO 正文加载 */
[data-reveal]{opacity:1}.js-enhanced [data-reveal]{opacity:0;transform:translateY(22px);transition:opacity 600ms ease,transform 600ms ease}.js-enhanced [data-reveal].is-visible{opacity:1;transform:none}.share-action{display:inline-flex;align-items:center;gap:8px}.share-action .action-feedback{font-size:.75rem;color:var(--accent)}.scroll-progress{position:fixed;inset:0 auto auto 0;width:0;height:3px;background:var(--accent);z-index:50;pointer-events:none}.back-to-top{position:fixed;right:25px;bottom:24px;width:48px;height:48px;background:var(--surface-raised);border:1px solid var(--line);border-radius:50%;color:var(--text);cursor:pointer;z-index:40;opacity:0;pointer-events:none;transform:translateY(12px);transition:opacity var(--transition),transform var(--transition),background var(--transition)}.back-to-top.is-visible{opacity:1;pointer-events:auto;transform:none}.back-to-top:hover{background:var(--accent);color:var(--ink)}
/* 大屏阅读：控制行长，保留横向留白 */
@media(min-width:1480px){:root{--content:1290px}.hero{grid-template-columns:1.04fr .96fr}.hero h1{font-size:6.25rem}.hero__art{max-width:580px;justify-self:end}.article-body section>p{font-size:1.115rem}.feature-visual{max-height:640px}}@media(min-width:1700px){:root{--gutter:70px}.hero{padding-block:135px 125px}.feature-section{padding-block:140px}.field-notes{padding-bottom:135px}}
/* 笔记本：合理降低首屏高度与卡片密度 */
@media(max-width:1199px){.masthead__inner{min-height:82px}.primary-nav{gap:18px}.primary-nav a{font-size:.83rem}.identity__descriptor{display:none}.hero{gap:30px;padding-block:75px}.hero h1{font-size:clamp(3.3rem,5.8vw,5rem)}.hero__lead{font-size:1rem}.hero__art{padding-right:18px}.hero__side{right:-18px}.story-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.story-grid .story-card{min-height:280px}.feature-layout{gap:34px}.feature-visual,.feature-visual img{min-height:490px}.feature-section{padding-block:90px}.editorial-band__inner{gap:6%}.viewing-layout__visual{height:540px}.faq-layout{gap:38px;grid-template-columns:minmax(0,1fr) 280px}.article-layout{gap:55px;grid-template-columns:minmax(0,730px) minmax(200px,240px)}}
/* 平板：导航切换为可展开区域，确保无 JS 时链接仍可访问 */
@media(max-width:900px){:root{--gutter:30px}.masthead__inner{position:relative;min-height:75px;flex-wrap:wrap}.nav-toggle{display:flex}.primary-nav{width:100%;order:3;display:flex;flex-wrap:wrap;gap:3px 25px;padding:0 0 17px}.primary-nav a{padding:10px 0;font-size:.9rem}.primary-nav a::after{bottom:5px}.js-enhanced .primary-nav{display:none}.js-enhanced .primary-nav.is-open{display:flex}.hero{grid-template-columns:1fr 1fr;padding-block:65px 85px}.hero h1{font-size:clamp(2.9rem,6.5vw,4.3rem)}.hero__art{padding:4px 20px 10px 0}.hero__side{display:none}.hero__actions .button{min-height:46px;padding:10px 16px;font-size:.84rem}.chapter-strip__inner span:last-child{display:none}.chapter-strip__inner{justify-content:space-between;min-height:90px}.section-heading{align-items:start;gap:25px}.section-heading>p{max-width:350px}.feature-layout{grid-template-columns:1fr 1fr}.feature-visual,.feature-visual img{min-height:450px}.story-card{padding:25px 23px}.feature-reading .story-card{margin-bottom:17px;padding-bottom:17px}.feature-reading .story-card h3{font-size:1.1rem}.feature-reading .story-card p{font-size:.84rem;margin-bottom:12px}.feature-reading .story-card__meta{margin-bottom:9px}.editorial-band__inner{min-height:450px}.editorial-band__photo{min-height:450px}.closing-section{grid-template-columns:auto 1fr;gap:25px}.closing-section .button{grid-column:2;justify-self:start}.page-heading{padding-block:70px 55px}.category-showcase,.creator-hero{gap:35px}.category-showcase h2,.creator-hero h2{font-size:2.2rem}.category-showcase__figure,.creator-hero>div:first-child,.creator-hero img{min-height:330px}.viewing-layout{gap:35px}.viewing-layout__visual{height:480px}.quality-grid{grid-template-columns:1fr;gap:0}.quality-grid>div{display:grid;grid-template-columns:100px 1fr;gap:15px;border-top:1px solid var(--line);padding:12px 0;align-items:start}.quality-grid b{font-size:1.3rem;margin:0}.safety-note{padding:35px}.faq-layout{grid-template-columns:1fr}.faq-aside{position:static}.faq-aside__inner{display:grid;grid-template-columns:1fr 1fr;gap:7px 25px}.faq-aside h2,.faq-aside p{grid-column:1/-1}.faq-aside a{display:inline-block}.article-layout{grid-template-columns:1fr}.article-rail{display:none}.article-head__copy,.article-body{max-width:750px;margin-inline:auto}.related-section .story-grid{grid-template-columns:repeat(3,1fr)}.related-section .story-card{padding:20px}.related-section .story-card h3{font-size:1.12rem}.footer-grid{gap:35px;grid-template-columns:1.5fr .7fr .7fr}}
/* 手机横屏与竖屏：正文顺序保持一致，按钮留有触摸面积 */
@media(max-width:680px){:root{--gutter:22px}.masthead__inner{min-height:70px}.identity__mark{font-size:2.05rem}.identity__name{font-size:1.18rem}.hero{grid-template-columns:1fr;padding-block:53px 67px;gap:45px}.hero .eyebrow{margin-bottom:20px}.hero h1{font-size:clamp(2.9rem,10vw,4.6rem);line-height:1.2;max-width:500px}.hero__lead{font-size:1rem;line-height:1.95}.hero__art{max-width:500px;justify-self:stretch;padding:0}.hero__frame{aspect-ratio:5/3.7}.chapter-strip__inner{min-height:100px;display:block;padding-block:22px}.chapter-strip__inner>span{display:block;margin-bottom:7px}.chapter-strip__inner p{text-align:left;font-size:.93rem}.feature-section{padding-block:76px 85px}.section-kicker{margin-bottom:31px}.section-heading{display:block;margin-bottom:34px}.section-heading h2{font-size:clamp(2rem,7vw,3rem)}.section-heading>p{max-width:100%;margin-top:22px}.feature-layout{grid-template-columns:1fr}.feature-visual,.feature-visual img{min-height:0;aspect-ratio:6/4}.feature-reading .story-card h3{font-size:1.22rem}.feature-reading .story-card{padding-block:13px 23px;margin-bottom:9px}.editorial-band{margin-block:10px 82px}.editorial-band__inner{display:flex;flex-direction:column;gap:0;align-items:stretch}.editorial-band__inner>div:first-child{padding-block:59px 46px}.editorial-band__photo{min-height:0;height:340px}.editorial-band__photo img{object-position:center 45%}.editorial-band h2{font-size:clamp(2.1rem,8vw,3.4rem)}.field-notes{padding-bottom:85px}.story-grid,.story-grid--large,.related-section .story-grid{grid-template-columns:1fr}.story-grid .story-card{min-height:0;padding:25px}.story-card h3{font-size:1.35rem}.story-grid--large .story-card h3{font-size:1.38rem}.closing-section{padding-block:49px;margin-bottom:73px;grid-template-columns:1fr;gap:14px}.closing-section__symbol{font-size:3.5rem}.closing-section .button{grid-column:1}.page-heading{padding-block:59px 48px}.page-heading h1{font-size:clamp(2.6rem,8.5vw,4rem)}.page-heading .lead{font-size:1rem}.category-showcase,.creator-hero,.viewing-layout{grid-template-columns:1fr;gap:28px;margin-bottom:80px}.category-showcase__figure,.creator-hero>div:first-child,.creator-hero img{min-height:0}.category-showcase__figure img,.creator-hero img{aspect-ratio:5/3.6}.category-showcase h2,.creator-hero h2{font-size:clamp(2rem,7vw,2.8rem)}.listing-section{padding-bottom:80px}.list-heading{align-items:flex-start;flex-direction:column;gap:7px;margin-bottom:23px}.list-heading h2{font-size:1.8rem}.crosslink,.safety-note{flex-direction:column;align-items:stretch;padding:29px 26px;margin-bottom:78px;gap:20px}.crosslink>.text-link{white-space:normal;align-self:flex-start}.viewing-layout__visual{height:380px}.viewing-layout__body h2{font-size:2rem}.quality-grid{margin:22px 0}.quality-grid>div{grid-template-columns:85px 1fr}.safety-note .button{white-space:normal;align-self:flex-start}.faq-layout{padding-bottom:80px}.faq-item summary{grid-template-columns:30px 1fr 18px;gap:8px;font-size:1rem;padding:22px 0}.faq-answer{padding-left:39px}.faq-aside__inner{padding:25px;display:block}.faq-aside a{display:block}.article-head{padding-block:37px 45px}.breadcrumbs{margin-bottom:45px;gap:8px}.article-head h1{font-size:clamp(2.4rem,8vw,3.7rem);margin-bottom:22px}.article-head .lead{font-size:1.02rem}.byline{gap:13px;flex-wrap:wrap}.article-intro{font-size:1.14rem;margin-bottom:38px;padding-bottom:35px}.article-body section{margin-bottom:47px}.article-body h2{font-size:1.65rem}.article-body section>p{font-size:1.015rem;line-height:2.15}.article-page{padding-bottom:80px}.article-conclusion{grid-template-columns:29px 1fr;gap:8px}.article-conclusion span{font-size:1.5rem}.related-section{padding-bottom:85px}.legal-content{margin-bottom:95px}.legal-content h2{font-size:1.45rem;margin-block:38px 14px}.legal-content p{font-size:1rem}.missing{padding-block:100px;min-height:55vh}.missing h1{font-size:2.8rem}.footer-grid{grid-template-columns:repeat(2,1fr);gap:40px 25px;padding-block:62px 55px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid p{max-width:100%}.footer-bottom{flex-direction:column;gap:6px;font-size:.71rem}}
/* 很窄的手机屏幕避免控件溢出 */
@media(max-width:380px){:root{--gutter:17px}.identity__name{font-size:1.06rem}.hero h1{font-size:2.75rem}.hero__actions{display:grid;grid-template-columns:1fr}.hero__actions .button{width:100%}.chapter-strip__inner>span{letter-spacing:.08em}.story-card{padding:21px}.footer-grid{gap:32px 15px}.footer-brand{font-size:1.27rem}.quality-grid>div{grid-template-columns:1fr;gap:4px}.faq-item summary{font-size:.96rem}.article-head h1{font-size:2.25rem}}
/* 用户偏好减少动画时禁用滚动、渐变与揭示效果 */
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.js-enhanced [data-reveal]{opacity:1!important;transform:none!important}.hero__frame:hover img{transform:none}}
@media print{*{color:#111!important;background:white!important;box-shadow:none!important}.masthead,.site-footer,.nav-toggle,.article-rail,.related-section,.back-to-top,.scroll-progress,.hero__art,.editorial-band__photo{display:none!important}.wrap{width:100%;max-width:none}.article-body{max-width:100%}.article-head{padding:18px 0}.article-body section{break-inside:avoid}a[href]::after{content:""}body{font-size:11pt}.article-head h1{font-size:26pt}.article-body h2{font-size:16pt}}