/* Red Tao Video content-site layout */
:root{--primary:#B93A4A;--primary-soft:#D9828D;--dark:#2B2528;--bg:#FFF9F7;--bg-2:#F6ECEB;--text:#332D2F;--muted:#756B6E;--accent:#E45B4F;--line:#E7DAD8;--white:#fff;--shadow:0 18px 50px rgba(43,37,40,.08);--radius:24px;--radius-sm:14px;--shell:min(1180px,calc(100% - 40px));}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}body.modal-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:var(--primary);text-decoration-thickness:1px;text-underline-offset:4px}a:hover{color:var(--accent)}button,input{font:inherit}.shell{width:var(--shell);margin-inline:auto}.skip-link{position:fixed;left:12px;top:-80px;z-index:100;background:var(--dark);color:#fff;padding:10px 16px;border-radius:8px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:40;background:rgba(255,249,247,.94);border-bottom:1px solid rgba(231,218,216,.9);backdrop-filter:blur(14px)}.header-inner{min-height:78px;display:flex;align-items:center;gap:22px}.brand{display:flex;align-items:center;gap:11px;color:var(--dark);text-decoration:none;margin-right:auto}.brand img{width:48px;height:48px;object-fit:contain}.brand span{display:grid;line-height:1.2}.brand strong{font-size:1.08rem}.brand small{margin-top:5px;color:var(--muted);font-size:.75rem}.primary-nav{display:flex;align-items:center;gap:2px}.primary-nav a{padding:10px 11px;border-radius:10px;color:var(--text);text-decoration:none;font-size:.92rem;white-space:nowrap}.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--bg-2);color:var(--primary)}.search-trigger,.menu-toggle{border:1px solid var(--line);background:#fff;color:var(--dark);border-radius:999px;padding:9px 14px;cursor:pointer}.menu-toggle{display:none}.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:90;background:rgba(43,37,40,.55);display:grid;place-items:start center;padding:10vh 20px 20px}.search-panel{position:relative;width:min(660px,100%);background:var(--bg);padding:36px;border-radius:var(--radius);box-shadow:0 30px 100px rgba(0,0,0,.22)}.search-panel h2{font-size:1.7rem;margin:.2rem 0 .5rem}.search-panel p{color:var(--muted)}.search-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:2rem;cursor:pointer;color:var(--muted)}.search-form label,.inline-search label{display:block;font-weight:700;margin-bottom:8px}.search-row,.inline-search>div{display:flex;gap:10px}.search-row input,.inline-search input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 14px;outline:none}.search-row input:focus,.inline-search input:focus{border-color:var(--primary-soft);box-shadow:0 0 0 3px rgba(185,58,74,.1)}.search-row button,.inline-search button{border:0;background:var(--primary);color:#fff;border-radius:12px;padding:12px 18px;cursor:pointer}.hero{min-height:650px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:56px;padding-top:70px;padding-bottom:72px}.hero h1,.page-hero h1,.article-header h1,.not-found h1{font-size:clamp(2.4rem,5vw,4.7rem);line-height:1.05;letter-spacing:-.035em;margin:.25rem 0 1.2rem;color:var(--dark)}.hero h1{max-width:12ch}.eyebrow{color:var(--primary);text-transform:none;font-weight:800;font-size:.82rem;letter-spacing:.12em;margin:0 0 14px}.eyebrow.light{color:#ffd8d5}.hero-lead{font-size:1.13rem;color:#554c4f;max-width:650px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:999px;font-weight:750;text-decoration:none}.btn.primary{background:var(--primary);color:#fff}.btn.secondary{background:#fff;color:var(--dark);border:1px solid var(--line)}.hero-points{padding-left:1.2rem;color:var(--muted);margin:24px 0 0}.hero-points li{margin:.35rem 0}.hero-media{margin:0;position:relative}.hero-media:before{content:"";position:absolute;inset:-20px 14% 14% -20px;background:var(--bg-2);border-radius:40% 60% 52% 48%/55% 48% 52% 45%;z-index:-1}.hero-media img{border-radius:36px;box-shadow:var(--shadow);aspect-ratio:4/3;object-fit:cover}.section{padding-top:88px;padding-bottom:88px}.section-tinted{background:var(--bg-2)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:36px}.section-heading.narrow{display:block;max-width:830px}.section-heading h2,.split-feature h2,.band-grid h2,.about-strip h2,.narrow-content h2{font-size:clamp(1.8rem,3.6vw,3rem);line-height:1.18;margin:.3rem 0;color:var(--dark)}.section-heading>p:last-child{max-width:620px;color:var(--muted)}.intent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.intent-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;min-height:330px;display:flex;flex-direction:column}.intent-card>span{font-size:2.6rem;font-weight:900;color:rgba(185,58,74,.15);line-height:1}.intent-card h3{font-size:1.45rem;margin:18px 0 10px}.intent-card p{color:var(--muted)}.intent-card a{margin-top:auto;font-weight:750}.split-feature{display:grid;grid-template-columns:.95fr 1.05fr;gap:58px;align-items:center}.split-feature.reverse>div{order:1}.split-feature.reverse>figure{order:2}.split-feature figure,.band-grid figure,.about-strip figure{margin:0}.split-feature img,.band-grid img,.about-strip img{width:100%;border-radius:28px;aspect-ratio:4/3;object-fit:cover}.split-feature p{color:var(--muted)}.link-stack{display:grid;gap:8px;margin-top:22px}.link-stack a,.text-link{font-weight:750}.editorial-list{border-top:1px solid var(--line)}.editorial-list article{display:grid;grid-template-columns:1fr auto;gap:30px;padding:27px 0;border-bottom:1px solid var(--line);align-items:end}.editorial-list h3{font-size:1.45rem;margin:.25rem 0}.editorial-list h3 a{color:var(--dark);text-decoration:none}.editorial-list p{margin:.4rem 0;color:var(--muted)}.meta{font-size:.8rem!important;color:var(--primary)!important;font-weight:750;letter-spacing:.04em}.arrow-link{font-weight:750;white-space:nowrap}.deep-band{background:var(--dark);color:#f9eff0}.band-grid{display:grid;grid-template-columns:1fr .9fr;gap:70px;align-items:center}.band-grid h2{color:#fff}.band-grid p{color:#d8cbce}.text-link.light{color:#ffd8d5}.map-list{display:grid;grid-template-columns:repeat(2,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}.map-list>div{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.map-list>div:nth-child(2n){border-right:0}.map-list>div:nth-last-child(-n+2){border-bottom:0}.map-list strong{font-size:1.13rem}.map-list p{color:var(--muted)}.inline-search{margin-top:26px;max-width:600px}.faq-list{display:grid;gap:12px}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px}.faq-list summary{cursor:pointer;font-weight:750;padding:17px 34px 17px 0;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:4px;font-size:1.4rem;color:var(--primary)}.faq-list details[open] summary:after{content:"−"}.faq-list details p{padding:0 0 18px;margin:0;color:var(--muted)}.center-link{text-align:center;margin-top:30px}.about-strip{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px;align-items:center}.about-strip p{color:var(--muted)}.page-hero{padding-top:72px;padding-bottom:48px;display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}.page-hero.compact{padding-top:58px}.page-hero.minimal{display:block;max-width:980px}.page-hero.minimal>div{max-width:760px}.page-hero h1{font-size:clamp(2.4rem,4.4vw,4.3rem);max-width:14ch}.page-hero p:not(.eyebrow){color:var(--muted);font-size:1.06rem}.page-hero figure{margin:0}.page-hero img{border-radius:28px;aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow)}.breadcrumbs{font-size:.85rem;color:var(--muted);padding:16px 0 0}.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#b3a5a8}.breadcrumbs a{color:var(--muted);text-decoration:none}.prose-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:60px;align-items:start}.prose{max-width:760px}.prose.wide{max-width:900px}.prose h2,.content-flow h2,.device-choice h2,.article-body h2,.search-results h2{font-size:1.7rem;line-height:1.28;color:var(--dark);margin:2.2rem 0 .85rem}.prose h2:first-child{margin-top:0}.prose h3,.content-flow h3{font-size:1.15rem;margin:1.6rem 0 .5rem}.prose p,.prose li,.content-flow p,.content-flow li{color:#52494c}.prose li{margin:.45rem 0}.side-note{position:sticky;top:105px;background:var(--bg-2);border-radius:var(--radius);padding:28px}.side-note h2{font-size:1.3rem;margin-top:0}.side-note p,.side-note li{color:var(--muted)}.side-note ul{padding-left:1.1rem}.side-note a{font-weight:750}.content-flow{display:grid;gap:42px}.lead-card{background:var(--dark);color:#fff;padding:34px;border-radius:var(--radius)}.lead-card h2{margin-top:0;color:#fff}.lead-card p{color:#e0d5d7}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px}.two-col article{padding-right:16px}.callout{background:#fff;border-left:6px solid var(--primary);box-shadow:var(--shadow);padding:28px 32px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.callout h2{margin-top:0}.callout li{margin:.5rem 0}.device-choice{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:55px}.device-choice article{padding:32px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.device-choice h2{margin-top:0}.device-choice p{color:var(--muted)}.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.check-grid>div{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff}.check-grid p{margin-bottom:0}.guide-index{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.guide-index article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;min-height:290px}.guide-index h2{font-size:1.4rem;line-height:1.3;margin:.3rem 0}.guide-index h2 a{color:var(--dark);text-decoration:none}.guide-index p{color:var(--muted)}.guide-index>a,.guide-index article>a{margin-top:auto;font-weight:750}.narrow-content{max-width:850px}.topic-groups>section{padding:40px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:320px 1fr;gap:60px}.topic-groups>section:last-child{border-bottom:0}.topic-head h2{font-size:1.7rem;margin-top:0}.topic-head p{color:var(--muted)}.topic-items{display:grid;gap:12px}.topic-items article{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.topic-items h3{margin:.1rem 0 .5rem}.topic-items h3 a{color:var(--dark);text-decoration:none}.topic-items p{color:var(--muted);margin-bottom:0}.faq-page{display:grid;grid-template-columns:1fr 300px;gap:50px;align-items:start}.article-page{padding-top:72px;padding-bottom:90px}.article-header{max-width:880px}.article-header h1{font-size:clamp(2.4rem,4.5vw,4.5rem);max-width:17ch}.article-lead{font-size:1.12rem;color:var(--muted);max-width:760px}.article-cover{margin:38px 0 56px}.article-cover img{width:100%;max-height:600px;object-fit:cover;border-radius:32px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:72px;align-items:start}.article-body{max-width:760px}.article-body section{padding-bottom:18px}.article-body p{color:#51484b;font-size:1.02rem}.article-aside{position:sticky;top:110px;border-left:1px solid var(--line);padding-left:24px;display:grid;gap:12px}.article-aside h2{font-size:1.2rem;margin-top:0}.article-aside a{text-decoration:none}.search-page{max-width:900px}.search-form.static{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}.result-count{color:var(--muted);margin:28px 0}.search-results{display:grid;gap:12px}.search-results article{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px}.search-results h2{font-size:1.35rem;margin:.2rem 0}.search-results h2 a{color:var(--dark);text-decoration:none}.search-results p{color:var(--muted);margin:.4rem 0}.empty-state{padding:55px 0}.empty-state h2{font-size:1.7rem}.not-found{padding-top:120px;padding-bottom:140px;max-width:900px;text-align:center}.not-found h1{font-size:clamp(3rem,7vw,6.5rem);max-width:none}.not-found>p:not(.eyebrow){color:var(--muted);font-size:1.12rem;max-width:700px;margin-inline:auto}.not-found .hero-actions{justify-content:center}.quick-links{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:25px}.safety-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.safety-steps article{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}.safety-steps span{font-size:2.5rem;font-weight:900;color:rgba(185,58,74,.14)}.safety-steps h2{font-size:1.25rem}.safety-steps p{color:var(--muted)}code{background:var(--bg-2);padding:.15rem .4rem;border-radius:6px}.site-footer{background:var(--dark);color:#eee3e5;padding-top:70px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:60px}.site-footer h2{color:#fff;font-size:1.05rem}.site-footer p,.site-footer li{color:#cbbdc0}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:.45rem 0}.site-footer a{color:#f0c8cc;text-decoration:none}.footer-bottom{margin-top:46px;border-top:1px solid #4b4144;padding:20px 0;display:flex;justify-content:space-between;gap:20px;font-size:.86rem}.footer-bottom p{margin:0}
@media(max-width:1080px){:root{--shell:min(100% - 32px,1000px)}.primary-nav a{padding:9px 7px;font-size:.85rem}.hero{gap:35px}.intent-card{padding:24px}.prose-grid{grid-template-columns:minmax(0,1fr) 270px;gap:38px}.article-layout{gap:42px}.safety-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.header-inner{min-height:68px}.brand small{display:none}.menu-toggle{display:inline-flex}.primary-nav{position:absolute;left:16px;right:16px;top:66px;background:var(--bg);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:10px;display:none;flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{padding:11px 12px}.search-trigger{padding:9px 12px}.hero,.page-hero,.split-feature,.band-grid,.about-strip{grid-template-columns:1fr}.hero{min-height:auto;padding-top:50px}.hero h1{max-width:15ch}.hero-media{max-width:720px}.split-feature.reverse>div,.split-feature.reverse>figure{order:initial}.intent-grid{grid-template-columns:1fr}.intent-card{min-height:0}.editorial-list article{grid-template-columns:1fr}.map-list{grid-template-columns:1fr}.map-list>div{border-right:0!important;border-bottom:1px solid var(--line)!important}.map-list>div:last-child{border-bottom:0!important}.prose-grid,.faq-page,.article-layout{grid-template-columns:1fr}.side-note,.article-aside{position:static}.article-aside{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.topic-groups>section{grid-template-columns:1fr;gap:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>section:first-child{grid-column:1/-1}.page-hero figure{max-width:720px}.guide-index{grid-template-columns:1fr}}
@media(max-width:700px){:root{--shell:calc(100% - 28px)}.section{padding-top:64px;padding-bottom:64px}.hero{padding-bottom:55px}.hero h1,.page-hero h1,.article-header h1{font-size:clamp(2.25rem,11vw,3.5rem)}.section-heading{display:block}.section-heading>p:last-child{margin-top:12px}.two-col,.device-choice,.check-grid{grid-template-columns:1fr}.search-panel{padding:28px 20px}.search-row,.inline-search>div{flex-direction:column}.search-row button,.inline-search button{width:100%}.page-hero{padding-top:48px;gap:28px}.page-hero figure{max-height:360px;overflow:hidden;border-radius:28px}.page-hero img{width:100%}.editorial-list article{padding:22px 0}.safety-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-grid>section:first-child{grid-column:auto}.footer-bottom{flex-direction:column}.article-page{padding-top:50px}.article-cover{margin:28px 0 36px}.quick-links{flex-direction:column}.not-found{padding-top:80px}.brand img{width:42px;height:42px}.brand strong{font-size:1rem}}
@media(max-width:420px){.header-inner{gap:8px}.brand{gap:7px}.brand img{width:38px;height:38px}.search-trigger,.menu-toggle{padding:7px 9px;font-size:.83rem}.hero-actions{align-items:stretch}.hero-actions .btn{width:100%}.page-hero img,.hero-media img{border-radius:22px}.intent-card,.device-choice article,.guide-index article{padding:22px}.section-heading h2,.split-feature h2,.band-grid h2,.about-strip h2{font-size:1.8rem}}