/* roulang page: index */
:root{
  --ink:#20251f;--deep:#304334;--moss:#66825b;--sage:#dce5d7;--paper:#fcfbf7;
  --sand:#f4f0e7;--muted:#80796b;--line:#d9d4c9;--white:#fffefa;
  --shadow:0 12px 30px rgba(48,67,52,.09);--shadow-lg:0 20px 48px rgba(35,45,32,.15);
  --radius:16px;--radius-sm:12px;--max:1200px;--ease:all .24s ease;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.8;font-size:16px}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.26;background-image:radial-gradient(rgba(48,67,52,.08) .7px,transparent .7px);background-size:7px 7px;z-index:-1}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea{font:inherit}button{cursor:pointer}.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.topline{background:var(--deep);color:#eff2e9;font-size:13px;letter-spacing:.02em}.topline .container{min-height:34px;display:flex;align-items:center;justify-content:center;text-align:center}
.site-header{position:sticky;top:0;z-index:30;background:rgba(252,251,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:24px}.brand{line-height:1.15;flex:0 0 238px}.brand strong{display:block;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:17px;letter-spacing:.02em}.brand small{color:var(--muted);font-size:11px}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.main-nav a{position:relative;padding:10px 11px;color:#4c554a;font-size:14px;white-space:nowrap;border-radius:8px;transition:var(--ease)}
.main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--sage)}.main-nav a.active:after{content:"";position:absolute;bottom:-12px;left:50%;width:22px;height:2px;background:var(--moss);transform:translateX(-50%)}
.nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid var(--deep);border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
.nav-action,.btn-primary{background:var(--deep);color:var(--white)}.nav-action:hover,.btn-primary:hover{background:var(--moss);border-color:var(--moss);transform:translateY(-1px)}.btn-secondary{color:var(--deep);background:transparent}.btn-secondary:hover{background:var(--sage)}.menu-toggle{display:none;background:transparent;border:0;color:var(--deep);font-size:26px}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--moss);outline-offset:3px}
main{overflow:hidden}.section{padding:88px 0}.section-sand{background:var(--sand)}.section-sage{background:linear-gradient(135deg,#edf2e9 0%,#dce5d7 100%)}.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--moss);font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}.section-head h2{margin:6px 0 0;font-family:Georgia,"Songti SC",serif;font-size:32px;line-height:1.3;color:var(--deep)}.section-head p{max-width:470px;margin:0;color:var(--muted);font-size:15px}
.hero{padding:58px 0 42px;background:var(--sand)}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}.hero-copy{padding:34px 0}.hero h1{max-width:650px;margin:12px 0 20px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:50px;line-height:1.2;letter-spacing:-.03em}.hero p{max-width:610px;margin:0;color:#536053;font-size:17px}.hero-actions{display:flex;gap:12px;margin-top:29px}.hero-visual{position:relative;min-height:410px;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow-lg);background:#29372b}.hero-visual>img{width:100%;height:410px;object-fit:cover;opacity:.72}.player-panel{position:absolute;left:24px;right:24px;bottom:22px;padding:18px;background:rgba(27,38,28,.82);border:1px solid rgba(255,255,255,.21);border-radius:12px;color:#fff}.player-top{display:flex;justify-content:space-between;font-size:13px}.player-track{height:5px;margin-top:15px;background:rgba(255,255,255,.25);border-radius:9px;overflow:hidden}.player-track i{display:block;width:54%;height:100%;background:#c7d6be}.zone-stamp{position:absolute;right:24px;top:22px;padding:9px 12px;background:rgba(252,251,247,.9);color:var(--deep);border-radius:8px;font-size:13px;font-weight:800}
.signal-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:32px;border:1px solid var(--line);background:var(--line);border-radius:12px;overflow:hidden}.signal{display:flex;align-items:center;gap:10px;padding:14px 17px;background:var(--paper);font-size:14px;font-weight:700;color:var(--deep)}.signal b{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:var(--sage);font-size:12px}
.zone-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:20px;align-items:stretch}.zone-card{position:relative;min-height:275px;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow);transition:var(--ease)}.zone-card:hover{transform:translateY(-3px);border-color:var(--moss);box-shadow:var(--shadow-lg)}.zone-card:first-child{grid-row:span 2;min-height:570px}.zone-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.22;transition:var(--ease)}.zone-card:hover img{transform:scale(1.04)}.zone-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(32,37,31,.82),rgba(32,37,31,.05) 75%)}.zone-card>*{position:relative;z-index:1}.zone-num{font-family:Georgia,serif;font-size:46px;line-height:1;color:#d6e3d0}.zone-card h3{margin:10px 0 5px;color:#fff;font-size:22px}.zone-card p{margin:0 0 18px;color:#edf2e9;font-size:14px;line-height:1.65}.card-link{color:#e6f0e1;font-size:14px;font-weight:800}.card-link span{margin-left:7px;transition:var(--ease)}.card-link:hover span{margin-left:12px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}.steps:before{content:"";position:absolute;top:28px;left:12%;right:12%;height:1px;background:#b8c5b2}.step{position:relative;padding:0 18px 0 0}.step-index{position:relative;z-index:1;width:56px;height:56px;display:grid;place-items:center;border:1px solid #b8c5b2;border-radius:50%;background:var(--paper);color:var(--deep);font-family:Georgia,serif;font-size:20px}.step h3{margin:17px 0 6px;font-size:18px;color:var(--deep)}.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.topic-scroll{display:flex;gap:18px;overflow-x:auto;padding:4px 2px 15px;scroll-snap-type:x proximity}.topic-card{flex:0 0 278px;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--white);box-shadow:0 7px 18px rgba(48,67,52,.05);transition:var(--ease);scroll-snap-align:start}.topic-card:hover{transform:translateY(-3px);border-color:var(--moss)}.topic-card img{width:100%;height:135px;object-fit:cover}.topic-content{padding:16px}.topic-no{color:var(--moss);font-family:Georgia,serif;font-size:13px;font-weight:800}.topic-card h3{margin:5px 0 0;color:var(--deep);font-size:17px}
.update-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:22px}.featured-update{min-height:355px;padding:32px;display:flex;flex-direction:column;justify-content:flex-end;border-radius:var(--radius);overflow:hidden;position:relative;background:var(--deep);color:#fff}.featured-update img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.24}.featured-update>*{position:relative}.badge{display:inline-flex;width:max-content;padding:3px 9px;border-radius:6px;background:var(--sage);color:var(--deep);font-size:12px;font-weight:800}.featured-update .badge{background:#dae5d3}.featured-update h3{margin:12px 0 8px;font-family:Georgia,"Songti SC",serif;font-size:26px;line-height:1.4}.featured-update p{margin:0;color:#e3eadf;font-size:14px}.update-list{display:flex;flex-direction:column;justify-content:space-between;border-top:1px solid var(--line)}.update-item{display:grid;grid-template-columns:85px 1fr 24px;gap:14px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line);transition:var(--ease)}.update-item:hover{padding-left:8px}.update-date{color:var(--muted);font-size:13px}.update-item h3{margin:4px 0 0;font-size:16px;line-height:1.5;color:var(--deep)}.arrow{color:var(--moss);font-size:21px}
.cms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.cms-card{display:grid;grid-template-columns:120px 1fr;gap:17px;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--white);box-shadow:0 6px 17px rgba(48,67,52,.05);transition:var(--ease)}.cms-card:first-child{grid-column:span 2;grid-template-columns:250px 1fr;padding:18px}.cms-card:hover{transform:translateY(-3px);border-color:var(--moss);box-shadow:var(--shadow)}.cms-cover{height:112px;border-radius:10px;overflow:hidden;background:var(--sage)}.cms-card:first-child .cms-cover{height:180px}.cms-cover img{width:100%;height:100%;object-fit:cover}.cms-meta{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:12px;flex-wrap:wrap}.cms-card h3{margin:7px 0;color:var(--deep);font-size:18px;line-height:1.45}.cms-card p{display:-webkit-box;margin:0;color:#62695f;font-size:14px;line-height:1.65;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.empty-state{grid-column:span 2;padding:48px 25px;text-align:center;border:1px dashed #aab8a4;border-radius:var(--radius);background:#f5f8f1;color:var(--muted)}.empty-icon{width:52px;height:42px;margin:0 auto 13px;border:2px solid #93a38b;border-radius:8px;position:relative}.empty-icon:before{content:"";position:absolute;left:7px;top:-9px;width:22px;height:12px;border:2px solid #93a38b;border-bottom:0;border-radius:6px 6px 0 0}
.media-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:55px;align-items:center}.content-copy h2{margin:8px 0 16px;font-family:Georgia,"Songti SC",serif;font-size:33px;line-height:1.35;color:var(--deep)}.content-copy p{color:#566053}.check-list{display:grid;gap:12px;margin:23px 0 0;padding:0;list-style:none}.check-list li{position:relative;padding-left:28px;color:#4f594e;font-size:15px}.check-list li:before{content:"✓";position:absolute;left:0;top:1px;color:var(--moss);font-weight:900}.device-frame{padding:22px;border-radius:20px;background:#263629;box-shadow:var(--shadow-lg)}.device-screen{padding:20px;border:1px solid rgba(255,255,255,.23);border-radius:12px;background:#334a37}.screen-head{display:flex;justify-content:space-between;color:#dce8d6;font-size:12px}.screen-image{height:185px;margin:18px 0;background:url('/assets/images/coverpic/cover-7.webp') center/cover;border-radius:8px;opacity:.72}.quality-row{display:flex;justify-content:space-between;align-items:center;color:#fff;font-size:13px}.quality-tag{padding:3px 7px;border-radius:5px;background:#bfcfb7;color:#233326;font-weight:800}
.compat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.compat-card{padding:24px 20px;border:1px solid var(--line);border-radius:14px;background:var(--white);transition:var(--ease)}.compat-card:hover{border-color:var(--moss);transform:translateY(-3px);box-shadow:var(--shadow)}.device-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:12px;background:var(--sage);color:var(--deep);font-size:22px}.compat-card h3{margin:16px 0 6px;font-size:17px;color:var(--deep)}.compat-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.diagnosis{padding:42px;border-radius:var(--radius);background:var(--deep);color:#fff}.diagnosis .section-head h2{color:#fff}.diagnosis .section-head p{color:#d9e2d4}.diagnosis-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.diagnosis-card{padding:22px;border:1px solid rgba(255,255,255,.17);border-radius:12px;background:rgba(255,255,255,.055)}.status{display:flex;align-items:center;gap:7px;color:#d8e3d2;font-size:12px}.status i{width:8px;height:8px;border-radius:50%;background:#bdcf94}.diagnosis-card h3{margin:13px 0 8px;font-size:18px}.diagnosis-card p{margin:0;color:#d2dbce;font-size:14px;line-height:1.7}
.editorial{display:grid;grid-template-columns:250px 1fr;gap:34px}.topic-tabs{display:flex;flex-direction:column;gap:8px}.topic-tab{padding:13px 15px;border-left:3px solid transparent;color:var(--muted);font-weight:700}.topic-tab.active{border-color:var(--moss);background:var(--sage);color:var(--deep)}.waterfall{columns:2;gap:18px}.editor-card{display:inline-block;width:100%;margin:0 0 18px;overflow:hidden;border:1px solid var(--line);border-radius:13px;background:var(--white);break-inside:avoid;transition:var(--ease)}.editor-card:hover{border-color:var(--moss);transform:translateY(-3px);box-shadow:var(--shadow)}.editor-card img{width:100%;height:130px;object-fit:cover}.editor-card:nth-child(2) img{height:185px}.editor-card:nth-child(3) img{height:155px}.editor-card div{padding:15px}.editor-card h3{margin:7px 0 0;font-size:17px;color:var(--deep);line-height:1.5}
.record-card{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;padding:40px;border:1px solid #cbd7c5;border-radius:var(--radius);background:#eef3eb}.record-icons{display:flex;gap:14px}.record-icon{width:74px;height:74px;display:grid;place-items:center;border-radius:15px;background:var(--white);box-shadow:0 6px 15px rgba(48,67,52,.08);font-size:29px}.record-card h2{margin:0 0 11px;font-family:Georgia,"Songti SC",serif;font-size:30px;color:var(--deep)}.record-card p{margin:0;color:#566053}.record-points{display:grid;gap:12px}.record-points div{padding:13px 15px;border-left:3px solid var(--moss);background:rgba(255,255,255,.62);color:var(--deep);font-size:14px;font-weight:700}
.compliance{display:grid;grid-template-columns:250px 1fr;gap:45px;align-items:center}.adult-mark{height:215px;display:grid;place-items:center;border-radius:var(--radius);background:var(--deep);color:#e1eadc;font-family:Georgia,serif;font-size:76px;font-weight:bold;letter-spacing:-.08em}.compliance h2{margin:0 0 15px;font-family:Georgia,"Songti SC",serif;font-size:31px;color:var(--deep)}.compliance-list{padding:0;margin:0;list-style:none}.compliance-list li{padding:12px 0;border-bottom:1px solid var(--line);color:#50594d;font-size:15px}.compliance-list strong{color:var(--deep)}
.faq-wrap{max-width:850px;margin:auto}.faq{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;display:grid;grid-template-columns:42px 1fr 24px;align-items:center;gap:12px;padding:20px 0;border:0;background:transparent;text-align:left;color:var(--deep);font-weight:800;font-size:16px}.faq-num{color:var(--moss);font-family:Georgia,serif;font-size:17px}.faq-symbol{font-size:24px;font-weight:400;color:var(--moss);text-align:right}.faq-answer{display:none;padding:0 40px 20px 54px;color:#5a6258;font-size:15px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-symbol:after{content:"−"}.faq-item:not(.open) .faq-symbol:after{content:"+"}.faq-symbol{font-size:0}
.subscribe-card{display:grid;grid-template-columns:1fr 1.05fr;gap:42px;padding:38px;border:1px solid #b9c8b2;border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}.subscribe-card h2{margin:6px 0 9px;font-family:Georgia,"Songti SC",serif;font-size:31px;line-height:1.35;color:var(--deep)}.subscribe-card p{margin:0;color:var(--muted);font-size:15px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.field{display:grid;gap:5px}.field label{font-size:13px;font-weight:800;color:var(--deep)}.field input,.field textarea{width:100%;padding:11px 12px;border:1px solid #abb4a6;border-radius:9px;background:var(--paper);color:var(--ink)}.field input:focus,.field textarea:focus{border-color:var(--moss)}.consent{grid-column:span 2;display:flex;gap:8px;align-items:flex-start;color:var(--muted);font-size:12px;line-height:1.55}.consent input{margin-top:5px;accent-color:var(--deep)}.form-actions{grid-column:span 2;display:flex;gap:10px;flex-wrap:wrap}
.site-footer{padding:55px 0 20px;background:var(--deep);color:#e8eee4}.footer-grid{display:grid;grid-template-columns:1.25fr .8fr .8fr;gap:48px;padding-bottom:35px;border-bottom:1px solid rgba(255,255,255,.16)}.footer-brand strong{display:block;font-family:Georgia,"Songti SC",serif;font-size:21px}.footer-brand p{max-width:360px;margin:12px 0 0;color:#cbd6c5;font-size:14px;line-height:1.75}.footer-col h3{margin:0 0 11px;font-size:14px;color:#fff}.footer-col a,.footer-col p{display:block;margin:7px 0;color:#cbd6c5;font-size:13px;transition:var(--ease)}.footer-col a:hover{color:#fff;padding-left:3px}.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:17px;color:#b8c5b2;font-size:12px}
@media(max-width:1024px){.main-nav{gap:0}.main-nav a{padding:9px 7px;font-size:13px}.brand{flex-basis:205px}.hero h1{font-size:43px}.zone-grid{grid-template-columns:1fr 1fr}.zone-card:first-child{grid-row:span 1;grid-column:span 2;min-height:320px}.compat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(calc(100% - 32px),var(--max))}.nav-wrap{height:65px;justify-content:space-between}.brand{flex:1}.brand strong{font-size:15px}.main-nav{display:none;position:absolute;top:65px;left:0;right:0;padding:12px 16px 18px;flex-direction:column;align-items:stretch;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:11px 13px}.main-nav a.active:after{display:none}.nav-action{display:none}.menu-toggle{display:block}.section{padding:60px 0}.hero{padding:34px 0}.hero-grid,.media-grid,.update-grid,.record-card,.subscribe-card{grid-template-columns:1fr;gap:25px}.hero-copy{padding:8px 0}.hero h1{font-size:35px}.hero-visual,.hero-visual>img{min-height:300px;height:300px}.signal-row{grid-template-columns:1fr}.steps{grid-template-columns:1fr;gap:18px}.steps:before{top:10%;bottom:10%;left:28px;right:auto;width:1px;height:auto}.step{padding:0 0 0 76px}.step-index{position:absolute;left:0}.cms-grid{grid-template-columns:1fr}.cms-card:first-child{grid-column:span 1;grid-template-columns:120px 1fr;padding:14px}.cms-card:first-child .cms-cover{height:112px}.empty-state{grid-column:span 1}.diagnosis{padding:28px}.diagnosis-grid{grid-template-columns:1fr}.editorial{grid-template-columns:1fr}.topic-tabs{flex-direction:row;overflow:auto}.topic-tab{white-space:nowrap}.compliance{grid-template-columns:1fr;gap:22px}.adult-mark{height:145px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:span 2}}
@media(max-width:520px){body{font-size:15px}.section-head{display:block;margin-bottom:25px}.section-head h2,.content-copy h2{font-size:27px}.section-head p{margin-top:10px}.hero h1{font-size:31px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.zone-grid{grid-template-columns:1fr}.zone-card:first-child{grid-column:span 1;min-height:275px}.zone-card{min-height:245px}.waterfall{columns:1}.record-icons{margin-top:10px}.record-card,.subscribe-card{padding:25px}.form-grid{grid-template-columns:1fr}.consent,.form-actions{grid-column:span 1}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:span 1}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}.faq-answer{padding-left:0}.compat-grid{grid-template-columns:1fr}.signal{padding:12px}.hero-visual,.hero-visual>img{height:255px;min-height:255px}}

/* roulang page: article */
:root{
  --ink:#20251f;--deep:#304334;--moss:#66825b;--sage:#dce5d7;--paper:#fcfbf7;
  --sand:#f4f0e7;--muted:#80796b;--line:#d9d4c9;--white:#fffefa;
  --shadow:0 12px 30px rgba(48,67,52,.09);--shadow-lg:0 20px 48px rgba(35,45,32,.15);
  --radius:16px;--radius-sm:12px;--max:1200px;--reading:760px;--ease:all .24s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.82}
body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.25;background-image:radial-gradient(rgba(48,67,52,.075) .7px,transparent .7px);background-size:7px 7px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.topline{background:var(--deep);color:#e8eee3;font-size:12px;letter-spacing:.03em}
.topline .container{min-height:34px;display:flex;align-items:center;justify-content:center;text-align:center}
.site-header{position:sticky;top:0;z-index:30;background:rgba(252,251,247,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:24px}
.brand{line-height:1.15;flex:0 0 238px}
.brand strong{display:block;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:17px;letter-spacing:.02em}
.brand small{color:var(--muted);font-size:11px}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:10px 11px;color:#4c554a;font-size:14px;white-space:nowrap;border-radius:8px;transition:var(--ease)}
.main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--sage)}
.main-nav a.active:after{content:"";position:absolute;bottom:-12px;left:50%;width:22px;height:2px;background:var(--moss);transform:translateX(-50%)}
.nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid var(--deep);border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
.nav-action,.btn-primary{background:var(--deep);color:var(--white)}
.nav-action:hover,.btn-primary:hover{background:var(--moss);border-color:var(--moss);transform:translateY(-1px)}
.btn-secondary{background:transparent;color:var(--deep)}
.btn-secondary:hover{background:var(--sage)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--moss);outline-offset:3px}
.menu-toggle{display:none;padding:7px;border:0;background:transparent;color:var(--deep);font-size:25px}
main{overflow:hidden}
.article-banner{position:relative;padding:58px 0 52px;background:var(--sand);border-bottom:1px solid var(--line);overflow:hidden}
.article-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(244,240,231,.96) 0%,rgba(244,240,231,.82) 53%,rgba(244,240,231,.22) 100%)}
.article-banner:before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat;opacity:.34}
.article-banner .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:21px;color:var(--muted);font-size:13px}
.breadcrumb a{text-decoration:underline;text-decoration-color:transparent;transition:var(--ease)}
.breadcrumb a:hover{color:var(--deep);text-decoration-color:var(--moss)}
.breadcrumb i{font-style:normal;color:#aaa397}
.article-kicker{display:flex;align-items:center;gap:9px;margin-bottom:13px;color:var(--moss);font-size:13px;font-weight:800;letter-spacing:.08em}
.article-kicker:before{content:"";width:24px;height:1px;background:currentColor}
.article-banner h1{max-width:880px;margin:0;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:48px;line-height:1.25;letter-spacing:-.025em}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;margin-top:22px;color:var(--muted);font-size:13px}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.dot{width:5px;height:5px;border-radius:50%;background:var(--moss)}
.badge{display:inline-flex;align-items:center;width:max-content;padding:4px 9px;border-radius:6px;background:var(--sage);color:var(--deep);font-size:12px;font-weight:800}
.section{padding:76px 0}
.reading-wrap{width:min(calc(100% - 48px),var(--reading));margin:auto}
.intro-box{padding:25px 28px;border:1px solid #c9d6c2;border-radius:var(--radius);background:var(--sage);box-shadow:0 8px 20px rgba(48,67,52,.05)}
.intro-box h2{margin:0 0 8px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:23px}
.intro-box p{margin:0;color:#455143;font-size:16px}
.article-content{font-size:17px;line-height:1.9}
.article-content>*:first-child{margin-top:0}
.article-content h2{margin:54px 0 18px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:31px;line-height:1.35}
.article-content h3{margin:36px 0 12px;color:var(--deep);font-size:21px;line-height:1.45}
.article-content p{margin:0 0 20px}
.article-content a{color:var(--deep);font-weight:700;text-decoration:underline;text-decoration-color:var(--moss);text-decoration-thickness:1px;text-underline-offset:3px}
.article-content a:hover{text-decoration-thickness:2px}
.article-content ul,.article-content ol{margin:0 0 22px;padding-left:1.45em}
.article-content li{margin:8px 0;padding-left:4px}
.article-content blockquote{margin:30px 0;padding:18px 23px;border-left:4px solid var(--moss);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:var(--sand);color:#4c554a}
.article-content img{width:100%;height:auto;margin:28px 0 8px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.article-content figure{margin:28px 0}
.article-content figcaption{margin-top:9px;color:var(--muted);font-size:13px;text-align:center}
.article-content table{width:100%;margin:25px 0;border-collapse:collapse;font-size:15px}
.article-content th,.article-content td{padding:12px;border:1px solid var(--line);text-align:left}
.article-content th{background:var(--sand);color:var(--deep)}
.notice-band{background:var(--sand)}
.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.notice-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);box-shadow:0 6px 16px rgba(48,67,52,.04);transition:var(--ease)}
.notice-card:hover{transform:translateY(-3px);border-color:var(--moss);box-shadow:var(--shadow)}
.notice-icon{display:flex;width:38px;height:38px;align-items:center;justify-content:center;margin-bottom:15px;border-radius:10px;background:var(--sage);color:var(--deep);font-weight:800}
.notice-card h3{margin:0 0 7px;color:var(--deep);font-size:18px}
.notice-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:25px;margin-bottom:30px}
.section-head h2{margin:5px 0 0;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:31px;line-height:1.35}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--moss);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 7px 18px rgba(48,67,52,.05);transition:var(--ease)}
.related-card:hover{transform:translateY(-3px);border-color:var(--moss);box-shadow:var(--shadow)}
.related-card img{width:100%;height:175px;object-fit:cover}
.related-copy{padding:19px}
.related-copy h3{display:-webkit-box;overflow:hidden;margin:10px 0 8px;color:var(--deep);font-size:18px;line-height:1.45;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.related-copy p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.7;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.card-meta{display:flex;justify-content:space-between;gap:8px;margin-top:17px;color:var(--muted);font-size:12px}
.card-arrow{color:var(--deep);font-weight:800}
.return-band{padding:54px 0;background:var(--deep);color:var(--white)}
.return-grid{display:flex;align-items:center;justify-content:space-between;gap:25px}
.return-grid h2{margin:0 0 6px;font-family:Georgia,"Songti SC",serif;font-size:29px}
.return-grid p{margin:0;color:#dbe4d6;font-size:15px}
.return-actions{display:flex;flex-wrap:wrap;gap:12px}
.return-band .btn-secondary{border-color:#dbe4d6;color:#fff}
.return-band .btn-secondary:hover{background:rgba(220,229,215,.16)}
.faq-section{background:var(--sand)}
.faq-wrap{width:min(100%,850px);margin:auto}
.faq-item{margin-bottom:12px;border:1px solid var(--line);border-radius:12px;background:var(--white);overflow:hidden}
.faq-question{display:flex;width:100%;align-items:center;gap:14px;padding:18px 20px;border:0;background:transparent;color:var(--deep);font-weight:800;text-align:left}
.faq-number{display:flex;flex:0 0 29px;width:29px;height:29px;align-items:center;justify-content:center;border-radius:7px;background:var(--sage);font-size:12px}
.faq-sign{margin-left:auto;font-size:23px;font-weight:400;line-height:1}
.faq-answer{display:none;padding:0 20px 19px 63px;color:#596056;font-size:15px}
.faq-item.open{border-color:#b9c9b2}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-sign{transform:rotate(45deg)}
.empty-state{padding:48px 28px;border:1px dashed var(--line);border-radius:var(--radius);background:var(--white);text-align:center}
.empty-state h2{margin:0 0 10px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:30px}
.empty-state p{margin:0 0 20px;color:var(--muted)}
.site-footer{padding:60px 0 22px;background:var(--deep);color:#eef2ea}
.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .9fr;gap:50px;padding-bottom:38px}
.footer-brand strong{font-family:Georgia,"Songti SC",serif;font-size:20px}
.footer-brand p{max-width:390px;margin:13px 0 0;color:#cbd5c6;font-size:14px;line-height:1.75}
.footer-col h3{margin:0 0 13px;color:#fff;font-size:15px}
.footer-col a,.footer-col p{display:block;margin:7px 0;color:#d6dfd1;font-size:14px;transition:var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.copyright{display:flex;justify-content:space-between;gap:18px;padding-top:20px;border-top:1px solid rgba(220,229,215,.2);color:#bfcbb9;font-size:12px}
@media (max-width:1024px){
  .brand{flex-basis:205px}.main-nav a{padding:9px 7px;font-size:13px}.nav-wrap{gap:13px}
  .article-banner h1{font-size:42px}.notice-grid{gap:14px}.related-grid{gap:14px}
}
@media (max-width:768px){
  .container{width:min(calc(100% - 32px),var(--max))}
  .nav-wrap{height:68px;justify-content:space-between}.brand{flex:1}.nav-action{display:none}
  .menu-toggle{display:block}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 16px 17px;border-bottom:1px solid var(--line);background:var(--paper);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
  .main-nav.is-open{display:flex}.main-nav a{padding:11px 12px}.main-nav a.active:after{display:none}
  .article-banner{padding:43px 0}.article-banner h1{font-size:34px}.article-meta{gap:8px 15px}
  .section{padding:58px 0}.reading-wrap{width:min(calc(100% - 32px),var(--reading))}
  .article-content{font-size:16px}.article-content h2{margin-top:42px;font-size:27px}.article-content h3{font-size:19px}
  .notice-grid,.related-grid{grid-template-columns:1fr}.related-card{display:grid;grid-template-columns:135px 1fr}.related-card img{height:100%}
  .return-grid{display:block}.return-actions{margin-top:22px}.footer-grid{grid-template-columns:1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin:5px 0}
}
@media (max-width:520px){
  body{font-size:15px}.topline .container{min-height:38px;padding:4px 0;line-height:1.45}.brand strong{font-size:15px}
  .article-banner h1{font-size:30px}.article-kicker{font-size:12px}.section-head h2{font-size:27px}
  .intro-box{padding:21px}.faq-question{padding:16px 14px;gap:10px;font-size:14px}.faq-answer{padding:0 14px 16px 53px;font-size:14px}
  .related-card{grid-template-columns:112px 1fr}.related-copy{padding:14px}.related-copy h3{font-size:16px}.related-copy p{display:none}
  .return-grid h2{font-size:25px}.return-actions{flex-direction:column}.return-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --ink:#20251f;--deep:#304334;--moss:#66825b;--sage:#dce5d7;--paper:#fcfbf7;
  --sand:#f4f0e7;--muted:#80796b;--line:#d9d4c9;--white:#fffefa;
  --shadow:0 12px 30px rgba(48,67,52,.09);--shadow-lg:0 20px 48px rgba(35,45,32,.15);
  --radius:16px;--radius-sm:12px;--max:1200px;--ease:all .24s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;background-image:radial-gradient(rgba(48,67,52,.08) .7px,transparent .7px);background-size:7px 7px;z-index:-1}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font:inherit}
button{cursor:pointer}
.container{width:min(calc(100% - 48px),var(--max));margin:auto}
.topline{background:var(--deep);color:#edf2e9;font-size:12px;letter-spacing:.03em}
.topline .container{min-height:34px;display:flex;align-items:center;justify-content:center;text-align:center}
.site-header{position:sticky;top:0;z-index:30;background:rgba(252,251,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{min-height:76px;display:flex;align-items:center;gap:24px}
.brand{line-height:1.15;flex:0 0 238px}
.brand strong{display:block;color:var(--deep);font-family:Georgia,"Songti SC","SimSun",serif;font-size:17px;letter-spacing:.02em}
.brand small{color:var(--muted);font-size:11px}
.main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
.main-nav a{position:relative;padding:10px 11px;color:#4c554a;font-size:14px;white-space:nowrap;border-radius:8px;transition:var(--ease)}
.main-nav a:hover,.main-nav a.active{color:var(--deep);background:var(--sage)}
.main-nav a.active:after{content:"";position:absolute;bottom:-12px;left:50%;width:22px;height:2px;background:var(--moss);transform:translateX(-50%)}
.nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid var(--deep);border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
.nav-action,.btn-primary{background:var(--deep);color:var(--white)}
.nav-action:hover,.btn-primary:hover{background:var(--moss);border-color:var(--moss);transform:translateY(-2px)}
.btn-secondary{color:var(--deep);background:transparent}
.btn-secondary:hover{background:var(--sage);transform:translateY(-2px)}
.menu-toggle{display:none;padding:5px;background:transparent;border:0;color:var(--deep);font-size:27px;line-height:1}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--moss);outline-offset:3px}
main{overflow:hidden}
.section{padding:84px 0}
.section-sand{background:var(--sand)}
.section-sage{background:#eaf0e6}
.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--moss);font-size:13px;font-weight:800;letter-spacing:.08em}
.eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:32px}
.section-head h2{margin:6px 0 0;color:var(--deep);font-family:Georgia,"Songti SC","SimSun",serif;font-size:32px;line-height:1.3}
.section-head p{max-width:475px;margin:0;color:var(--muted);font-size:15px}
.badge{display:inline-flex;align-items:center;width:max-content;padding:3px 9px;border-radius:6px;background:var(--sage);color:var(--deep);font-size:12px;font-weight:800;line-height:1.5}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:15px;color:var(--muted);font-size:13px}
.breadcrumb a:hover{color:var(--deep);text-decoration:underline}
.breadcrumb i{font-style:normal;color:#aaa395}
.directory-banner{position:relative;overflow:hidden;padding:52px 0 50px;background:var(--deep);color:var(--white)}
.directory-banner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,37,31,.94) 0%,rgba(48,67,52,.75) 58%,rgba(48,67,52,.4) 100%),url("/assets/images/backpic/back-2.webp") center/cover}
.directory-banner .container{position:relative}
.banner-grid{display:grid;grid-template-columns:1fr 240px;gap:36px;align-items:end}
.directory-banner .breadcrumb{color:#d7dfd3}
.directory-banner .breadcrumb a:hover{color:#fff}
.directory-banner h1{max-width:730px;margin:8px 0 14px;font-family:Georgia,"Songti SC","SimSun",serif;font-size:46px;line-height:1.2;letter-spacing:-.02em}
.directory-banner p{max-width:670px;margin:0;color:#e1e9dc;font-size:16px}
.banner-number{justify-self:end;display:flex;align-items:center;justify-content:center;width:190px;height:190px;border:1px solid rgba(255,255,255,.28);border-radius:50%;font:700 87px/1 Georgia,serif;color:rgba(255,255,255,.82);background:rgba(220,229,215,.1)}
.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.overview-card{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 7px 20px rgba(48,67,52,.05);transition:var(--ease)}
.overview-card:hover{border-color:var(--moss);transform:translateY(-3px);box-shadow:var(--shadow)}
.overview-card .num{display:block;margin-bottom:13px;color:var(--moss);font:700 25px/1 Georgia,serif}
.overview-card h3{margin:0 0 8px;color:var(--deep);font-size:19px}
.overview-card p{margin:0;color:#5c6559;font-size:14px;line-height:1.75}
.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;align-items:start}
.content-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 7px 18px rgba(48,67,52,.05);transition:var(--ease)}
.content-card:nth-child(2){margin-top:32px}
.content-card:nth-child(3){margin-top:-3px}
.content-card:nth-child(4){margin-top:28px}
.content-card:hover{border-color:var(--moss);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.content-card:hover .cover img{transform:scale(1.04)}
.cover{height:205px;overflow:hidden;background:var(--sage)}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card-body{padding:22px}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;color:var(--muted);font-size:12px}
.card-body h3{margin:0 0 10px;color:var(--deep);font-size:21px;line-height:1.45}
.card-body p{display:-webkit-box;overflow:hidden;margin:0 0 15px;color:#5e675c;font-size:14px;line-height:1.75;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.article-link{display:inline-flex;align-items:center;gap:8px;color:var(--deep);font-size:14px;font-weight:800}
.article-link span{transition:var(--ease)}
.article-link:hover{color:var(--moss)}
.article-link:hover span{transform:translateX(4px)}
.list-more{text-align:center;margin-top:34px}
.topic-strip{display:grid;grid-template-columns:240px 1fr;gap:28px;align-items:start}
.topic-intro{padding:25px;border-radius:var(--radius);background:var(--deep);color:#eef3ea}
.topic-intro h2{margin:7px 0 10px;font-family:Georgia,"Songti SC","SimSun",serif;font-size:28px;line-height:1.35}
.topic-intro p{margin:0;color:#d8e3d3;font-size:14px}
.topic-links{display:grid;gap:0;border-top:1px solid var(--line)}
.topic-link{display:grid;grid-template-columns:54px 1fr 24px;gap:15px;align-items:center;padding:18px 4px;border-bottom:1px solid var(--line);transition:var(--ease)}
.topic-link:hover{padding-left:11px;background:rgba(220,229,215,.4)}
.topic-link b{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--sage);color:var(--deep);font:700 16px Georgia,serif}
.topic-link strong{display:block;color:var(--deep);font-size:16px}
.topic-link small{color:var(--muted);font-size:12px}
.topic-link em{font-style:normal;color:var(--moss);font-size:20px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;position:relative}
.step{position:relative;padding:26px 24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 6px 15px rgba(48,67,52,.04)}
.step:not(:last-child):after{content:"";position:absolute;top:43px;right:-22px;width:22px;height:1px;background:var(--moss)}
.step-no{display:flex;align-items:center;justify-content:center;width:36px;height:36px;margin-bottom:15px;border-radius:50%;background:var(--deep);color:#fff;font-size:13px;font-weight:800}
.step h3{margin:0 0 7px;color:var(--deep);font-size:19px}
.step p{margin:0;color:#5b6458;font-size:14px}
.playback-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:center}
.device-figure{position:relative;min-height:292px;padding:22px;border-radius:var(--radius);background:#263728;box-shadow:var(--shadow-lg)}
.device-screen{display:flex;flex-direction:column;justify-content:space-between;min-height:248px;padding:23px;border:8px solid #121b13;border-radius:12px;background:url("/assets/images/coverpic/cover-7.webp") center/cover}
.device-top{display:flex;justify-content:space-between;color:#fff;font-size:12px}
.quality{padding:3px 8px;border-radius:5px;background:rgba(220,229,215,.9);color:var(--deep);font-weight:800}
.player-bottom{padding:13px;border-radius:8px;background:rgba(20,28,21,.75)}
.progress{height:4px;margin-bottom:12px;border-radius:10px;background:rgba(255,255,255,.25)}
.progress span{display:block;width:62%;height:100%;border-radius:inherit;background:#dce5d7}
.player-controls{display:flex;justify-content:space-between;color:#fff;font-size:13px}
.playback-copy h2{margin:7px 0 13px;color:var(--deep);font-family:Georgia,"Songti SC","SimSun",serif;font-size:32px;line-height:1.35}
.playback-copy>p{margin:0 0 18px;color:#596257}
.check-list{display:grid;gap:11px;padding:0;margin:0;list-style:none}
.check-list li{position:relative;padding-left:27px;color:#4f584d;font-size:15px}
.check-list li:before{content:"✓";position:absolute;left:0;top:1px;color:var(--moss);font-weight:900}
.faq-wrap{max-width:880px;margin:auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-question{display:flex;align-items:center;width:100%;padding:19px 0;border:0;background:transparent;color:var(--deep);text-align:left;font-weight:800;font-size:16px}
.faq-index{flex:0 0 43px;color:var(--moss);font:700 17px Georgia,serif}
.faq-icon{margin-left:auto;color:var(--moss);font-size:22px;font-weight:400;transition:var(--ease)}
.faq-answer{display:none;padding:0 42px 21px;color:#5b6458;font-size:14px}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.bottom-links{display:flex;justify-content:center;margin-top:30px}
.site-footer{padding:62px 0 22px;background:var(--deep);color:#edf2e9}
.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .9fr;gap:50px;padding-bottom:42px}
.footer-brand strong{display:block;margin-bottom:12px;font-family:Georgia,"Songti SC","SimSun",serif;font-size:21px}
.footer-brand p,.footer-col p{margin:0;color:#cbd5c6;font-size:14px;line-height:1.8}
.footer-col h3{margin:0 0 12px;color:#fff;font-size:15px}
.footer-col a{display:block;width:max-content;margin:6px 0;color:#d9e4d4;font-size:14px;transition:var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.copyright{display:flex;justify-content:space-between;gap:20px;padding-top:19px;border-top:1px solid rgba(255,255,255,.18);color:#bdc8b8;font-size:12px}
@media(max-width:1100px){
  .nav-wrap{gap:12px}.brand{flex-basis:205px}.main-nav a{padding:9px 7px;font-size:13px}
}
@media(max-width:900px){
  .nav-wrap{min-height:68px;justify-content:space-between}.brand{flex:1}
  .menu-toggle{display:block}.nav-action{display:none}
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;padding:14px 24px 20px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .main-nav.show{display:flex}.main-nav a{padding:11px}.main-nav a.active:after{display:none}
  .banner-grid,.playback-grid{grid-template-columns:1fr}.banner-number{display:none}
  .overview-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}
}
@media(max-width:768px){
  .container{width:min(calc(100% - 32px),var(--max))}.section{padding:58px 0}
  .directory-banner{padding:42px 0}.directory-banner h1{font-size:35px}.directory-banner p{font-size:15px}
  .section-head{display:block;margin-bottom:25px}.section-head p{margin-top:10px}
  .section-head h2{font-size:28px}.content-grid,.topic-strip{grid-template-columns:1fr}.content-card:nth-child(n){margin-top:0}
  .topic-intro{padding:22px}.steps{grid-template-columns:1fr}.step:not(:last-child):after{top:auto;bottom:-22px;left:42px;width:1px;height:22px}
  .playback-grid{gap:26px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{flex-direction:column;gap:4px}
}
@media(max-width:520px){
  body{font-size:15px}.topline .container{min-height:38px;padding:4px 0;line-height:1.45}.brand strong{font-size:15px}.brand small{font-size:10px}
  .directory-banner h1{font-size:31px}.directory-banner p{font-size:14px}.section-head h2{font-size:26px}
  .content-card .cover{height:180px}.card-body{padding:19px}.card-body h3{font-size:19px}
  .topic-link{grid-template-columns:47px 1fr 18px;gap:9px}.topic-link strong{font-size:15px}.faq-answer{padding-left:0}.faq-index{flex-basis:36px}
  .btn{width:100%;min-height:46px}.bottom-links .btn{width:auto}.device-figure{min-height:252px;padding:15px}.device-screen{min-height:220px;padding:16px}
}

/* roulang page: category3 */
:root{
      --ink:#20251f;--deep:#304334;--moss:#66825b;--sage:#dce5d7;--paper:#fcfbf7;
      --sand:#f4f0e7;--muted:#80796b;--line:#d9d4c9;--white:#fffefa;
      --shadow:0 12px 30px rgba(48,67,52,.09);--shadow-lg:0 20px 48px rgba(35,45,32,.15);
      --radius:16px;--radius-sm:12px;--max:1200px;--ease:all .24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8}
    body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.24;background-image:radial-gradient(rgba(48,67,52,.075) .7px,transparent .7px);background-size:7px 7px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
    .topline{background:var(--deep);color:#eef3ea;font-size:12px;letter-spacing:.02em}
    .topline .container{min-height:34px;display:flex;align-items:center;justify-content:center;text-align:center}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(252,251,247,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
    .nav-wrap{height:76px;display:flex;align-items:center;gap:24px}
    .brand{line-height:1.15;flex:0 0 238px}
    .brand strong{display:block;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:17px;letter-spacing:.02em}
    .brand small{color:var(--muted);font-size:11px}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}
    .main-nav a{position:relative;padding:10px 11px;border-radius:8px;color:#4c554a;font-size:14px;white-space:nowrap;transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{background:var(--sage);color:var(--deep)}
    .main-nav a.active:after{content:"";position:absolute;bottom:-12px;left:50%;width:22px;height:2px;background:var(--moss);transform:translateX(-50%)}
    .nav-action,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 19px;border:1px solid var(--deep);border-radius:10px;font-weight:700;font-size:14px;transition:var(--ease)}
    .nav-action,.btn-primary{background:var(--deep);color:var(--white)}
    .nav-action:hover,.btn-primary:hover{background:var(--moss);border-color:var(--moss);color:var(--white);transform:translateY(-1px)}
    .btn-secondary{background:transparent;color:var(--deep)}
    .btn-secondary:hover{background:var(--sage);color:var(--deep)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--deep);font-size:26px}
    a:focus-visible,button:focus-visible{outline:2px solid var(--moss);outline-offset:3px}
    main{overflow:hidden}
    .section{padding:88px 0}
    .section-sand{background:var(--sand)}
    .section-sage{background:#eaf0e6}
    .eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--moss);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:20px;height:1px;background:currentColor}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:32px}
    .section-head h2{margin:6px 0 0;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:32px;line-height:1.3}
    .section-head p{max-width:480px;margin:0;color:var(--muted);font-size:15px}
    .badge{display:inline-flex;align-items:center;width:max-content;padding:3px 9px;border-radius:6px;background:var(--sage);color:var(--deep);font-size:12px;font-weight:800;line-height:1.5}
    .page-banner{position:relative;overflow:hidden;padding:52px 0 48px;background:var(--deep);color:var(--white)}
    .page-banner:before{content:"03";position:absolute;right:5%;top:-47px;color:rgba(220,229,215,.13);font-family:Georgia,"Songti SC",serif;font-size:230px;line-height:1}
    .page-banner:after{content:"";position:absolute;inset:0;opacity:.16;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat}
    .page-banner .container{position:relative;z-index:1}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:19px;color:#d2dacd;font-size:13px}
    .breadcrumb a{text-decoration:underline;text-decoration-color:rgba(210,218,205,.45);text-underline-offset:3px}
    .breadcrumb span{opacity:.65}
    .page-banner h1{max-width:700px;margin:0;color:#fffefa;font-family:Georgia,"Songti SC",serif;font-size:48px;line-height:1.22;letter-spacing:-.025em}
    .page-banner p{max-width:690px;margin:15px 0 0;color:#e2e9de;font-size:16px}
    .banner-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .banner-meta .badge{background:rgba(220,229,215,.92)}
    .overview-grid{display:grid;grid-template-columns:1.1fr .95fr .95fr;gap:20px}
    .overview-card{min-height:190px;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 6px 18px rgba(48,67,52,.05)}
    .overview-card:first-child{background:var(--sage)}
    .overview-number{display:block;margin-bottom:17px;color:var(--moss);font-family:Georgia,serif;font-size:36px;line-height:1}
    .overview-card h3{margin:0 0 9px;color:var(--deep);font-size:19px}
    .overview-card p{margin:0;color:#5d6559;font-size:14px;line-height:1.75}
    .masonry{columns:3;column-gap:20px}
    .content-card{display:inline-block;width:100%;margin:0 0 20px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 7px 20px rgba(48,67,52,.055);transition:var(--ease)}
    .content-card:hover{border-color:var(--moss);box-shadow:var(--shadow);transform:translateY(-3px)}
    .content-card img{width:100%;height:160px;object-fit:cover}
    .content-card.tall img{height:215px}
    .content-card-body{padding:18px 18px 16px}
    .card-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;color:var(--muted);font-size:12px}
    .content-card h3{margin:0;color:var(--deep);font-size:18px;line-height:1.48}
    .content-card p{display:-webkit-box;overflow:hidden;margin:9px 0 14px;color:#60685d;font-size:14px;line-height:1.72;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .read-link{display:inline-flex;align-items:center;gap:8px;color:var(--deep);font-size:13px;font-weight:800}
    .read-link span{font-size:17px;transition:var(--ease)}
    .read-link:hover span{transform:translateX(4px)}
    .more-row{display:flex;justify-content:center;margin-top:16px}
    .topic-strip{display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:center;padding:32px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .topic-strip h2{margin:7px 0 0;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:29px;line-height:1.35}
    .topic-links{display:grid;gap:0;border-top:1px solid var(--line)}
    .topic-link{display:grid;grid-template-columns:1fr auto;gap:15px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);color:var(--deep);font-size:15px;font-weight:700;transition:var(--ease)}
    .topic-link:hover{padding-left:8px;color:var(--moss)}
    .topic-link small{color:var(--muted);font-size:12px;font-weight:400}
    .map-wrap{position:relative;padding:36px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--shadow)}
    .map-line{position:absolute;top:78px;left:12%;right:12%;height:2px;background:var(--sage)}
    .map-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .map-node{padding:0 8px;text-align:center}
    .map-dot{display:flex;align-items:center;justify-content:center;width:58px;height:58px;margin:0 auto 15px;border:7px solid var(--white);border-radius:50%;background:var(--moss);box-shadow:0 0 0 1px var(--line);color:var(--white);font-family:Georgia,serif;font-size:18px;font-weight:700}
    .map-node:nth-child(2) .map-dot{background:#7f9874}
    .map-node:nth-child(3) .map-dot{background:#496044}
    .map-node:nth-child(4) .map-dot{background:var(--deep)}
    .map-node h3{margin:0 0 6px;color:var(--deep);font-size:17px}
    .map-node p{margin:0;color:var(--muted);font-size:13px;line-height:1.65}
    .timeline{position:relative;max-width:880px;margin:0 auto}
    .timeline:before{content:"";position:absolute;top:7px;bottom:7px;left:112px;width:1px;background:var(--line)}
    .timeline-item{display:grid;grid-template-columns:88px 1fr;gap:25px;padding-bottom:28px}
    .timeline-item:last-child{padding-bottom:0}
    .timeline-date{position:relative;color:var(--moss);font-size:13px;font-weight:800;text-align:right}
    .timeline-date:after{content:"";position:absolute;right:-30px;top:7px;width:11px;height:11px;border:2px solid var(--moss);border-radius:50%;background:var(--paper)}
    .timeline-content{padding:17px 20px;border:1px solid var(--line);border-radius:12px;background:var(--white);transition:var(--ease)}
    .timeline-content:hover{border-color:var(--moss);box-shadow:var(--shadow)}
    .timeline-content h3{margin:0 0 4px;color:var(--deep);font-size:17px}
    .timeline-content p{margin:0;color:var(--muted);font-size:14px}
    .device-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .device-card{min-height:207px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--white);transition:var(--ease)}
    .device-card:hover{border-color:var(--moss);box-shadow:var(--shadow);transform:translateY(-3px)}
    .device-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;margin-bottom:18px;border-radius:12px;background:var(--sage);color:var(--deep);font-size:23px;font-weight:800}
    .device-card h3{margin:0 0 8px;color:var(--deep);font-size:18px}
    .device-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .record-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:center}
    .bookmark-art{position:relative;min-height:300px;overflow:hidden;border-radius:var(--radius);background:var(--deep) url('/assets/images/coverpic/cover-11.webp') center/cover no-repeat}
    .bookmark-art:after{content:"";position:absolute;inset:0;background:rgba(32,37,31,.68)}
    .bookmark-shape{position:absolute;z-index:1;top:43px;left:50%;width:116px;height:170px;border-radius:8px 8px 0 0;background:var(--sage);transform:translateX(-50%);box-shadow:0 14px 30px rgba(0,0,0,.2)}
    .bookmark-shape:after{content:"";position:absolute;bottom:-1px;left:0;border-style:solid;border-width:0 58px 42px;border-color:transparent transparent var(--deep)}
    .record-copy h2{margin:7px 0 15px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:32px;line-height:1.35}
    .record-copy>p{margin:0;color:#596154}
    .record-list{display:grid;gap:10px;margin:21px 0 0;padding:0;list-style:none}
    .record-list li{position:relative;padding:12px 14px 12px 38px;border-bottom:1px solid var(--line);color:#4f584d;font-size:14px}
    .record-list li:before{content:"✓";position:absolute;left:10px;color:var(--moss);font-weight:800}
    .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
    .faq-intro{padding:28px;border-radius:var(--radius);background:var(--deep);color:var(--white)}
    .faq-intro h2{margin:8px 0 12px;font-family:Georgia,"Songti SC",serif;font-size:31px;line-height:1.35}
    .faq-intro p{margin:0;color:#dfe8da;font-size:14px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{display:flex;align-items:center;gap:14px;width:100%;padding:19px 0;border:0;background:transparent;color:var(--deep);font-weight:800;text-align:left}
    .faq-num{flex:0 0 27px;color:var(--moss);font-family:Georgia,serif;font-size:15px}
    .faq-sign{margin-left:auto;font-size:23px;font-weight:400;line-height:1}
    .faq-answer{display:none;padding:0 35px 19px 41px;color:#5c6459;font-size:14px;line-height:1.8}
    .faq-item.open .faq-answer{display:block}
    .faq-item.open .faq-sign{font-size:0}
    .faq-item.open .faq-sign:after{content:"−";font-size:23px}
    .faq-bottom{margin-top:25px}
    .site-footer{padding:65px 0 22px;background:var(--deep);color:#edf2e9}
    .footer-grid{display:grid;grid-template-columns:1.2fr .85fr .85fr;gap:42px;padding-bottom:40px;border-bottom:1px solid rgba(220,229,215,.2)}
    .footer-brand strong{display:block;margin-bottom:10px;font-family:Georgia,"Songti SC",serif;font-size:20px}
    .footer-brand p,.footer-col p{margin:0;color:#ced8c9;font-size:14px;line-height:1.75}
    .footer-col h3{margin:0 0 13px;color:#fffefa;font-size:15px}
    .footer-col a{display:block;width:max-content;margin:7px 0;color:#d7e1d2;font-size:14px;text-decoration:underline;text-decoration-color:rgba(215,225,210,.35);text-underline-offset:3px}
    .footer-col a:hover{color:#fffefa}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:19px;color:#b9c6b4;font-size:12px}
    @media (max-width:1100px){
      .nav-wrap{gap:14px}.brand{flex-basis:205px}.main-nav a{padding:9px 7px;font-size:13px}
      .masonry{columns:2}.device-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:860px){
      .nav-action{display:none}.menu-toggle{display:block;margin-left:auto}.nav-wrap{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;padding:12px 24px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a{padding:12px}.main-nav a.active:after{display:none}
      .page-banner h1{font-size:39px}.overview-grid{grid-template-columns:1fr 1fr}.overview-card:first-child{grid-column:span 2}.topic-strip,.record-grid,.faq-layout{grid-template-columns:1fr}.map-grid{grid-template-columns:repeat(2,1fr);row-gap:28px}.map-line{display:none}.footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:640px){
      .container{width:min(calc(100% - 32px),var(--max))}.section{padding:55px 0}.page-banner{padding:40px 0}.page-banner h1{font-size:33px}.page-banner p{font-size:15px}.section-head{display:block;margin-bottom:24px}.section-head h2{font-size:28px}.section-head p{margin-top:10px}
      .brand{flex-basis:auto}.brand strong{font-size:14px}.brand small{font-size:10px}.overview-grid,.device-grid{grid-template-columns:1fr}.overview-card:first-child{grid-column:auto}.masonry{columns:1}.content-card img,.content-card.tall img{height:190px}.topic-strip{padding:24px}.timeline:before{left:80px}.timeline-item{grid-template-columns:58px 1fr;gap:19px}.timeline-date{font-size:11px}.timeline-date:after{right:-24px}.timeline-content{padding:14px}.timeline-content h3{font-size:16px}.map-wrap{padding:26px 16px}.map-node{padding:0 2px}.map-node h3{font-size:15px}.map-node p{font-size:12px}.record-copy h2{font-size:28px}.bookmark-art{min-height:230px}.faq-intro{padding:23px}.faq-answer{padding-left:40px}.footer-grid{grid-template-columns:1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin:4px 0}
    }
    @media (max-width:420px){
      .topline{font-size:11px}.page-banner h1{font-size:30px}.page-banner:before{font-size:160px;top:-25px}.banner-meta{gap:6px}.btn{width:100%}.map-grid{grid-template-columns:1fr 1fr}.device-card{min-height:auto}
    }

/* roulang page: category2 */
:root{
      --ink:#20251f;
      --deep:#304334;
      --moss:#66825b;
      --sage:#dce5d7;
      --paper:#fcfbf7;
      --sand:#f4f0e7;
      --muted:#80796b;
      --line:#d9d4c9;
      --white:#fffefa;
      --shadow:0 12px 30px rgba(48,67,52,.09);
      --shadow-lg:0 20px 48px rgba(35,45,32,.15);
      --radius:16px;
      --radius-sm:12px;
      --max:1200px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--paper);
      font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      font-size:16px;
      line-height:1.8;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      z-index:-1;
      pointer-events:none;
      opacity:.24;
      background-image:radial-gradient(rgba(48,67,52,.08) .7px,transparent .7px);
      background-size:7px 7px;
    }
    a{color:inherit;text-decoration:none}
    a:hover{text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
    .topline{
      min-height:34px;
      color:var(--muted);
      background:var(--sand);
      font-size:12px;
      border-bottom:1px solid rgba(217,212,201,.65);
    }
    .topline .container{
      min-height:34px;
      display:flex;
      align-items:center;
      justify-content:center;
      text-align:center;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(252,251,247,.96);
      backdrop-filter:blur(12px);
      border-bottom:1px solid var(--line);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .brand{flex:0 0 238px;line-height:1.15}
    .brand strong{
      display:block;
      color:var(--deep);
      font-family:Georgia,"Songti SC",serif;
      font-size:17px;
      letter-spacing:.02em;
    }
    .brand small{color:var(--muted);font-size:11px}
    .main-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:4px;
      flex:1;
    }
    .main-nav a{
      position:relative;
      padding:10px 11px;
      color:#4c554a;
      border-radius:8px;
      font-size:14px;
      white-space:nowrap;
      transition:var(--ease);
    }
    .main-nav a:hover,.main-nav a.active{
      color:var(--deep);
      background:var(--sage);
    }
    .main-nav a.active:after{
      content:"";
      position:absolute;
      bottom:-12px;
      left:50%;
      width:22px;
      height:2px;
      background:var(--moss);
      transform:translateX(-50%);
    }
    .nav-action,.btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 19px;
      border:1px solid var(--deep);
      border-radius:10px;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .nav-action,.btn-primary{color:var(--white);background:var(--deep)}
    .nav-action:hover,.btn-primary:hover{
      color:#fff;
      background:var(--moss);
      border-color:var(--moss);
      transform:translateY(-1px);
    }
    .btn-secondary{color:var(--deep);background:transparent}
    .btn-secondary:hover{background:var(--sage)}
    .menu-toggle{
      display:none;
      min-width:44px;
      min-height:44px;
      color:var(--deep);
      background:transparent;
      border:0;
      font-size:26px;
    }
    a:focus-visible,button:focus-visible{
      outline:2px solid var(--moss);
      outline-offset:3px;
    }
    main{overflow:hidden}
    .section{padding:88px 0}
    .section-sand{background:var(--sand)}
    .section-sage{background:linear-gradient(135deg,#edf2e9 0%,#dce5d7 100%)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--moss);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .eyebrow:before{
      content:"";
      width:20px;
      height:1px;
      background:currentColor;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:32px;
    }
    .section-head h2{
      margin:6px 0 0;
      color:var(--deep);
      font-family:Georgia,"Songti SC",serif;
      font-size:32px;
      line-height:1.3;
    }
    .section-head p{
      max-width:500px;
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .crumbs{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      align-items:center;
      margin-bottom:19px;
      color:var(--muted);
      font-size:13px;
    }
    .crumbs span:last-child{color:var(--deep);font-weight:700}
    .banner{
      position:relative;
      min-height:285px;
      display:flex;
      align-items:center;
      overflow:hidden;
      color:#fff;
      background:var(--deep);
    }
    .banner:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(48,67,52,.96),rgba(48,67,52,.73),rgba(48,67,52,.3));
      z-index:1;
    }
    .banner img{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      object-fit:cover;
      opacity:.63;
    }
    .banner .container{position:relative;z-index:2}
    .banner h1{
      max-width:760px;
      margin:8px 0 12px;
      color:#fff;
      font-family:Georgia,"Songti SC",serif;
      font-size:46px;
      line-height:1.25;
      letter-spacing:-.025em;
    }
    .banner p{max-width:690px;margin:0;color:#e8eee5;font-size:16px}
    .banner-mark{
      position:absolute;
      right:7%;
      bottom:-34px;
      z-index:2;
      color:rgba(220,229,215,.18);
      font-family:Georgia,serif;
      font-size:180px;
      font-weight:700;
      line-height:1;
    }
    .badge{
      display:inline-flex;
      width:max-content;
      padding:3px 9px;
      color:var(--deep);
      background:var(--sage);
      border-radius:6px;
      font-size:12px;
      font-weight:800;
    }
    .badge-dark{color:#edf2e9;background:rgba(220,229,215,.2)}
    .note-layout{
      display:grid;
      grid-template-columns:230px 1fr;
      gap:42px;
      align-items:start;
    }
    .editor-note{
      padding:22px;
      color:var(--deep);
      border-left:3px solid var(--moss);
      background:var(--sand);
    }
    .editor-note strong{display:block;margin-bottom:7px;font-size:18px}
    .editor-note span{color:var(--muted);font-size:13px}
    .reading-copy h2{margin:0 0 12px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:31px}
    .reading-copy p{max-width:760px;margin:0;color:#596256}
    .reading-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:24px;
    }
    .reading-points div{
      padding:16px 18px;
      border-top:1px solid var(--moss);
      background:rgba(255,254,250,.65);
    }
    .reading-points b{display:block;color:var(--deep);font-size:15px}
    .reading-points small{color:var(--muted)}
    .feature-card{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      min-height:255px;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:var(--white);
      box-shadow:var(--shadow);
      transition:var(--ease);
    }
    .feature-card:hover,.small-card:hover{
      border-color:var(--moss);
      box-shadow:var(--shadow-lg);
      transform:translateY(-3px);
    }
    .feature-card img{width:100%;height:100%;min-height:255px;object-fit:cover}
    .feature-content{padding:30px}
    .feature-content h3{margin:14px 0 9px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:25px;line-height:1.4}
    .feature-content p,.small-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
    .article-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:19px;
      color:var(--deep);
      font-size:14px;
      font-weight:800;
    }
    .article-link span{transition:var(--ease)}
    .article-link:hover{color:var(--moss)}
    .article-link:hover span{transform:translateX(5px)}
    .small-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:18px;
    }
    .small-card{
      min-height:250px;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius-sm);
      background:var(--white);
      box-shadow:var(--shadow);
      transition:var(--ease);
    }
    .small-card img{width:100%;height:108px;object-fit:cover}
    .small-card-body{padding:17px 18px 19px}
    .small-card h3{margin:9px 0 6px;color:var(--deep);font-size:18px;line-height:1.45}
    .meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;color:var(--muted);font-size:12px}
    .more-row{display:flex;justify-content:center;margin-top:30px}
    .outline-link{
      display:inline-flex;
      align-items:center;
      min-height:44px;
      padding:0 20px;
      color:var(--deep);
      border:1px solid var(--deep);
      border-radius:10px;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .outline-link:hover{color:var(--deep);background:var(--sage);border-color:var(--moss)}
    .list-layout{
      display:grid;
      grid-template-columns:210px 1fr;
      gap:44px;
    }
    .vertical-labels{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .vertical-labels span{
      padding:13px 15px;
      color:var(--muted);
      border-bottom:1px solid var(--line);
      font-size:14px;
    }
    .vertical-labels span:first-child{
      color:var(--deep);
      background:var(--sage);
      border-radius:8px;
      font-weight:800;
    }
    .topic-list{border-top:1px solid var(--line)}
    .topic-row{
      display:grid;
      grid-template-columns:48px 1fr 100px;
      gap:18px;
      align-items:center;
      padding:17px 0;
      border-bottom:1px solid var(--line);
      transition:var(--ease);
    }
    .topic-row:hover{padding-left:8px;background:rgba(220,229,215,.3)}
    .topic-row b{color:var(--moss);font-family:Georgia,serif;font-size:22px}
    .topic-row h3{margin:0 0 3px;color:var(--deep);font-size:17px}
    .topic-row p{margin:0;color:var(--muted);font-size:13px}
    .topic-row time{color:var(--muted);font-size:12px;text-align:right}
    .mobile-layout{
      display:grid;
      grid-template-columns:300px 1fr;
      gap:50px;
      align-items:center;
    }
    .phone-frame{
      width:190px;
      height:310px;
      margin:auto;
      padding:12px;
      border:8px solid var(--deep);
      border-radius:28px;
      background:#b9c9b2;
      box-shadow:var(--shadow-lg);
    }
    .phone-screen{
      height:100%;
      padding:15px 11px;
      border-radius:15px;
      background:var(--paper);
    }
    .phone-screen i{display:block;width:52px;height:4px;margin:0 auto 25px;background:var(--line);border-radius:5px}
    .screen-bar{height:74px;margin-bottom:12px;border-radius:9px;background:var(--deep)}
    .screen-line{height:9px;margin:10px 0;border-radius:4px;background:var(--sage)}
    .screen-line.short{width:62%}
    .mobile-copy h2{margin:0 0 12px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:31px}
    .mobile-copy>p{margin:0 0 24px;color:var(--muted)}
    .check-list{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
    .check-list div{padding:19px;border:1px solid var(--line);border-radius:12px;background:var(--white)}
    .check-list strong{display:block;margin-bottom:5px;color:var(--deep);font-size:16px}
    .check-list span{color:var(--muted);font-size:13px;line-height:1.6}
    .diagnostic{
      color:#edf2e9;
      background:var(--deep);
    }
    .diagnostic .section-head h2{color:#fff}
    .diagnostic .section-head p{color:#cbd7c6}
    .diagnostic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .diagnostic-card{
      padding:24px;
      border:1px solid rgba(220,229,215,.24);
      border-radius:var(--radius-sm);
      background:rgba(255,255,255,.07);
      transition:var(--ease);
    }
    .diagnostic-card:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
    .status{display:flex;align-items:center;gap:8px;color:#cfdfc9;font-size:12px}
    .status i{width:8px;height:8px;border-radius:50%;background:#afc79f}
    .diagnostic-card h3{margin:17px 0 7px;color:#fff;font-size:19px}
    .diagnostic-card p{margin:0;color:#cad5c6;font-size:14px}
    .compliance-box{
      display:grid;
      grid-template-columns:190px 1fr;
      gap:42px;
      align-items:center;
      padding:35px;
      border:1px solid #c8d4c3;
      border-radius:var(--radius);
      background:var(--sage);
    }
    .adult-mark{
      display:flex;
      align-items:center;
      justify-content:center;
      width:142px;
      height:142px;
      color:var(--deep);
      border:2px solid var(--deep);
      border-radius:50%;
      font-family:Georgia,serif;
      font-size:48px;
      font-weight:700;
    }
    .compliance-box h2{margin:0 0 10px;color:var(--deep);font-family:Georgia,"Songti SC",serif;font-size:29px}
    .compliance-box p{margin:0;color:#536053}
    .compliance-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:18px;color:var(--deep);font-size:14px;font-weight:700}
    .faq-list{max-width:900px;margin:auto}
    details{
      border-bottom:1px solid var(--line);
      background:rgba(255,254,250,.55);
    }
    details:first-child{border-top:1px solid var(--line)}
    summary{
      display:flex;
      align-items:center;
      gap:18px;
      padding:20px 4px;
      color:var(--deep);
      cursor:pointer;
      list-style:none;
      font-weight:700;
    }
    summary::-webkit-details-marker{display:none}
    summary:before{
      content:"+";
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:28px;
      height:28px;
      flex:0 0 28px;
      color:var(--deep);
      border:1px solid var(--moss);
      border-radius:50%;
      font-size:20px;
      font-weight:400;
      line-height:1;
    }
    details[open] summary:before{content:"−";background:var(--sage)}
    details p{margin:-5px 45px 20px;color:var(--muted);font-size:14px}
    .compliance-return{margin-top:27px;text-align:center}
    .site-footer{
      padding:58px 0 25px;
      color:#dfe8da;
      background:var(--deep);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1.2fr;
      gap:45px;
      padding-bottom:39px;
      border-bottom:1px solid rgba(220,229,215,.2);
    }
    .footer-brand strong{display:block;color:#fff;font-family:Georgia,"Songti SC",serif;font-size:18px}
    .footer-brand p{max-width:360px;margin:13px 0 0;color:#c5d2c0;font-size:14px}
    .footer-col h3{margin:0 0 14px;color:#fff;font-size:15px}
    .footer-col a,.footer-col p{display:block;margin:6px 0;color:#c5d2c0;font-size:13px}
    .footer-col a:hover{color:#fff;text-decoration:underline}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:20px;
      color:#aebead;
      font-size:12px;
    }
    @media(max-width:1100px){
      .brand{flex-basis:205px}
      .main-nav a{padding-left:7px;padding-right:7px;font-size:13px}
      .nav-action{padding:0 13px}
    }
    @media(max-width:992px){
      .hero-grid,.feature-card,.mobile-layout{grid-template-columns:1fr}
      .feature-card img{height:230px}
      .small-grid{grid-template-columns:repeat(2,1fr)}
      .check-list{grid-template-columns:repeat(3,1fr)}
      .mobile-layout{gap:28px}
      .phone-frame{margin:0}
      .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:24px}
    }
    @media(max-width:768px){
      .container{width:min(calc(100% - 32px),var(--max))}
      .nav-wrap{min-height:68px}
      .brand{flex:1}
      .brand strong{font-size:15px}
      .nav-action{display:none}
      .menu-toggle{display:block}
      .main-nav{
        position:absolute;
        top:68px;
        left:16px;
        right:16px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        padding:10px;
        border:1px solid var(--line);
        border-radius:12px;
        background:var(--paper);
        box-shadow:var(--shadow-lg);
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:12px 14px}
      .main-nav a.active:after{display:none}
      .section{padding:60px 0}
      .banner{min-height:280px}
      .banner h1{font-size:35px}
      .banner-mark{right:2%;font-size:130px}
      .section-head{display:block;margin-bottom:24px}
      .section-head h2{font-size:28px;margin-bottom:9px}
      .note-layout,.list-layout,.compliance-box{grid-template-columns:1fr;gap:22px}
      .reading-points,.diagnostic-grid{grid-template-columns:1fr}
      .editor-note{border-left:0;border-top:3px solid var(--moss)}
      .small-grid{grid-template-columns:1fr}
      .topic-row{grid-template-columns:40px 1fr}
      .topic-row time{grid-column:2;text-align:left}
      .compliance-box{padding:27px}
      .adult-mark{width:105px;height:105px;font-size:36px}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
      .copyright{display:block}
      .copyright span{display:block;margin-top:6px}
    }
    @media(max-width:520px){
      .topline{font-size:11px}
      .banner h1{font-size:31px}
      .banner p{font-size:14px}
      .feature-content{padding:22px}
      .feature-content h3{font-size:22px}
      .check-list{grid-template-columns:1fr}
      .phone-frame{width:165px;height:275px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }