/* roulang page: index */
:root{--bg:#061018;--bg-2:#081a2b;--ink:#e8f4ff;--muted:#b7c9d8;--cyan:#3ee0ff;--cyan-2:#8af2ff;--copper:#f0a08c;--copper-deep:#d4785a;--line:rgba(62,224,255,.28);--glass:rgba(255,255,255,.06);--radius:16px;--shadow:0 0 0 1px rgba(62,224,255,.06),0 16px 40px rgba(0,0,0,.28);--pad:92px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(980px 460px at 8% -8%,rgba(62,224,255,.16),transparent 56%),radial-gradient(760px 380px at 100% 0%,rgba(212,120,90,.12),transparent 50%),var(--bg);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:17px;line-height:1.75}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(62,224,255,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:min(1120px,calc(100% - 40px));margin:0 auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.site-header{position:sticky;top:0;z-index:40;background:rgba(6,16,24,.8);border-bottom:1px solid rgba(62,224,255,.18);backdrop-filter:blur(18px);box-shadow:0 8px 28px rgba(0,0,0,.22)}
.nav-bar{display:flex;align-items:center;gap:16px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;width:max-content;color:#fff;font-weight:760;letter-spacing:-.04em;line-height:1.15;font-size:16px}
.logo-mark{width:34px;height:34px;border-radius:11px;border:1px solid var(--line);background:linear-gradient(160deg,rgba(62,224,255,.28),rgba(255,255,255,.04));box-shadow:0 0 16px rgba(62,224,255,.28);position:relative;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;left:7px;right:7px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.logo-mark:before{top:12px}.logo-mark:after{top:20px}
.nav-links{display:none;align-items:center;gap:6px;margin-left:8px}
.nav-links a{position:relative;padding:10px 12px;color:var(--muted);font-size:15px;border-radius:999px}
.nav-links a:hover{color:#fff;background:rgba(62,224,255,.08)}
.nav-links a.is-active{color:#fff;box-shadow:inset 0 -2px 0 var(--cyan)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid transparent;font-size:14px;font-weight:760;letter-spacing:.01em;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{color:#04202a;background:linear-gradient(180deg,#7cf3ff,#14b7df);box-shadow:0 0 0 1px rgba(212,120,90,.9),0 0 22px rgba(62,224,255,.48)}
.btn-primary:hover{box-shadow:0 0 0 1px #f0b19f,0 0 32px rgba(62,224,255,.72)}
.btn-ghost{color:#fff;background:rgba(8,24,38,.4);box-shadow:inset 0 0 0 1px rgba(62,224,255,.72),0 0 16px rgba(62,224,255,.16)}
.btn-ghost:hover{border-color:var(--cyan);box-shadow:inset 0 0 0 1px var(--cyan),0 0 22px rgba(62,224,255,.32)}
.menu-btn{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);display:inline-flex;align-items:center;justify-content:center}
.menu-btn span.bars,.menu-btn span.bars:before,.menu-btn span.bars:after{display:block;width:16px;height:1.5px;background:#e8f4ff;position:relative;box-shadow:0 0 8px rgba(62,224,255,.4)}
.menu-btn span.bars:before,.menu-btn span.bars:after{content:"";position:absolute;left:0}
.menu-btn span.bars:before{top:-6px}.menu-btn span.bars:after{top:6px}
.mobile-nav{display:none;padding:4px 0 16px}
.mobile-nav.is-open{display:grid;gap:6px}
.mobile-nav a{padding:12px 12px;border-radius:12px;color:var(--muted);border:1px solid transparent}
.mobile-nav a:hover,.mobile-nav a.is-active{color:#fff;border-color:var(--line);background:rgba(62,224,255,.06)}
.hero{position:relative;overflow:hidden;padding:78px 0 72px}
.hero-slash{position:absolute;inset:-12% auto auto -18%;width:78%;height:86%;background:linear-gradient(135deg,rgba(62,224,255,.2),rgba(212,120,90,.16) 46%,transparent 72%);clip-path:polygon(0 12%,100% 0,84% 100%,0 82%);pointer-events:none}
.lane-bg{position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,transparent 0,transparent 56px,rgba(62,224,255,.08) 56px,rgba(62,224,255,.08) 57px);mask-image:linear-gradient(90deg,#000,transparent 85%);pointer-events:none}
.time-deco{position:absolute;right:4%;top:28px;display:flex;gap:16px;color:rgba(232,244,255,.28);font-family:ui-monospace,monospace;font-size:12px;letter-spacing:.14em}
.dots{display:inline-flex;gap:5px}
.dots i{width:6px;height:6px;border-radius:50%;display:block}
.dots i:nth-child(1){background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.dots i:nth-child(2){background:var(--copper-deep)}
.dots i:nth-child(3){background:#e4c56a;box-shadow:0 0 8px #e4c56a}
.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--cyan-2);font-size:13px;margin-bottom:14px}
h1{font-size:clamp(36px,5vw,62px);line-height:1.12;letter-spacing:-.045em;font-weight:760;max-width:11em}
.sub{margin-top:14px;color:#dff7ff;font-size:20px;line-height:1.6;max-width:18em}
.hero-lead,.section-lead{color:var(--muted);max-width:40rem}
.hero-lead{margin-top:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.glass{background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.035));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.12);backdrop-filter:blur(16px)}
.info-board{padding:22px 22px 8px;position:relative}
.info-board h2{font-size:22px;letter-spacing:-.03em}
.info-row{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:14px 0;border-top:1px solid rgba(62,224,255,.14);color:var(--muted);font-size:15px}
.info-row strong{color:#fff;font-weight:700;text-align:right}
.section{padding:var(--pad) 0;border-top:1px solid rgba(62,224,255,.08);position:relative}
.band-a{background:linear-gradient(180deg,rgba(8,28,48,.78),rgba(8,28,48,.5))}
.section-title{font-size:clamp(26px,3vw,36px);line-height:1.25;letter-spacing:-.035em;font-weight:760;margin-bottom:12px}
.section-lead{margin-bottom:26px}
.pain-list{display:grid;gap:12px}
.pain-item{padding:16px 18px}
.pain-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
.pain-top h3{font-size:18px}
.tag{display:inline-flex;align-items:center;border-radius:999px;border:1px solid rgba(212,120,90,.55);color:#ffd5c8;background:rgba(212,120,90,.1);padding:2px 10px;font-size:12px;line-height:1.7}
.meter-caps{display:flex;justify-content:space-between;color:#8ea6ba;font-size:12px;margin-bottom:6px}
.meter{display:flex;height:8px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.05);margin-bottom:10px}
.bar-bad{background:linear-gradient(90deg,#d4785a,#f0a08c);height:100%}
.bar-ok{background:linear-gradient(90deg,#128eaf,#3ee0ff);height:100%}
.pain-item p,.side-note p,.step-card p,.runway-card p,.score-card p,.quote-card p,.people-item p,.scene-card p,.news-item p,.ladder-old,.ladder-new,.time-item p,.faq-item p{color:var(--muted);font-size:15px;line-height:1.75}
.solution-grid,.hero-grid,.runway,.quote-grid,.step-list,.score-grid,.foot-grid,.metric-strip{display:grid;gap:16px}
.solution-main,.side-note,.step-card,.runway-card,.score-card,.quote-card,.scene-card{padding:22px}
.solution-main h3,.side-note h3,.step-card h3,.runway-card h3,.scene-card h3{font-size:20px;margin:8px 0}
.step-no{font-family:ui-monospace,monospace;color:var(--cyan);font-size:13px;letter-spacing:.08em}
.lift{transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.lift:hover{transform:translateY(-4px);border-color:rgba(62,224,255,.62);box-shadow:0 0 26px rgba(62,224,255,.18),inset 0 1px 0 rgba(255,255,255,.14)}
.runway-card{position:relative;overflow:hidden;min-height:230px;display:flex;flex-direction:column}
.runway-card:before{content:"";position:absolute;left:18px;right:18px;top:16px;height:1px;background:linear-gradient(90deg,transparent,rgba(62,224,255,.85),transparent)}
.runway-card.narrow{border-color:rgba(212,120,90,.45)}
.more-link{margin-top:auto;color:var(--copper);font-weight:760}
.runway-card:hover .more-link{color:#ffd0c2}
.score-num{font-family:ui-monospace,monospace;font-size:clamp(32px,4vw,46px);line-height:1;letter-spacing:-.04em;color:#fff;margin:10px 0}
.score-card h3{font-size:16px;margin-bottom:8px}
.gold-dot,.cyan-dot{width:7px;height:7px;border-radius:50%;display:inline-block}
.gold-dot{background:#e4c56a;box-shadow:0 0 8px #e4c56a}
.cyan-dot{background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.quote-card footer{margin-top:14px;color:#d7e7f3;font-size:13px}
.people-list{display:grid;gap:10px}
.people-item{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:start;padding:16px 0;border-top:1px solid rgba(62,224,255,.16)}
.people-item strong{font-size:18px}
.scene-rail{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:thin;scrollbar-color:rgba(62,224,255,.45) transparent}
.scene-card{min-width:min(320px,84vw);scroll-snap-align:start;display:block}
.scene-art{height:74px;margin-bottom:8px;border-radius:12px;background:linear-gradient(90deg,rgba(62,224,255,.16),rgba(212,120,90,.1));position:relative;overflow:hidden}
.scene-art svg{width:100%;height:74px}
.news-list{display:grid;gap:12px}
.news-item{display:grid;gap:6px;padding:16px 18px}
.news-item a{color:var(--copper);font-weight:760;font-size:18px;line-height:1.45}
.news-item a:hover{color:#ffd2c4}
.news-item.hot{border-color:rgba(212,120,90,.7);box-shadow:0 0 24px rgba(212,120,90,.14)}
.news-item time{color:#8eabc0;font-family:ui-monospace,monospace;font-size:12px}
.ladder{display:grid;gap:12px}
.ladder-item{display:grid;grid-template-columns:96px minmax(0,1fr) minmax(0,1fr);gap:12px}
.ladder-dim{display:flex;align-items:center;font-weight:760}
.ladder-old,.ladder-new{border-radius:14px;border:1px solid rgba(255,255,255,.08);padding:14px 16px}
.ladder-new{border-color:rgba(62,224,255,.4);background:rgba(62,224,255,.06);color:#e7f7ff}
.metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.03);overflow:hidden}
.metric-cell{padding:18px 16px;border-right:1px solid rgba(62,224,255,.14);border-bottom:1px solid rgba(62,224,255,.14)}
.metric-cell b{display:block;font-family:ui-monospace,monospace;font-size:28px;line-height:1;color:#fff}
.metric-cell span{color:var(--muted);font-size:14px}
.timeline{margin-left:8px;border-left:1px solid rgba(62,224,255,.38);display:grid}
.time-item{position:relative;padding:0 0 26px 22px}
.time-item:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;left:-5px;top:8px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.time-item time{font-family:ui-monospace,monospace;color:var(--cyan-2);font-size:13px}
.faq-list{display:grid;gap:10px}
.faq-item{padding:14px 16px}
.faq-item summary{cursor:pointer;font-weight:760;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";color:var(--cyan);font-family:ui-monospace,monospace}
.faq-item[open] summary:after{content:"–"}
.faq-item p{padding-top:10px}
.cta-band{position:relative;overflow:hidden;padding:36px 28px;background:linear-gradient(135deg,rgba(62,224,255,.16),rgba(8,20,34,.2) 42%,rgba(212,120,90,.12))}
.cta-band:before{content:"";position:absolute;inset:auto -10% -40% 30%;height:180px;background:rgba(62,224,255,.14);clip-path:polygon(10% 0,100% 20%,80% 100%,0 70%)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;position:relative}
.site-footer{border-top:1px solid rgba(62,224,255,.16);background:#050d16;padding:42px 0 28px}
.foot-brand{font-size:22px;font-weight:760;letter-spacing:-.04em;line-height:1.3}
.foot-note{color:var(--muted);margin-top:10px;max-width:36rem}
.foot-links{display:flex;flex-wrap:wrap;gap:12px 18px;align-content:flex-start}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.copy{margin-top:22px;color:#8ea3b6;font-size:13px}
@media(min-width:1024px){
.nav-links{display:flex}
.menu-btn,.mobile-nav,.mobile-nav.is-open{display:none}
.hero-grid{grid-template-columns:1.15fr .85fr;align-items:center}
.solution-grid{grid-template-columns:1.45fr .75fr}
.runway{grid-template-columns:1.45fr .8fr}
.step-list{grid-template-columns:repeat(4,minmax(0,1fr));align-items:start}
.step-card:nth-child(1){margin-top:48px}.step-card:nth-child(2){margin-top:32px}.step-card:nth-child(3){margin-top:16px}
.score-grid,.metric-strip{grid-template-columns:repeat(4,minmax(0,1fr))}
.metric-cell{border-bottom:0}
.ladder-item:nth-child(2){margin-left:28px}.ladder-item:nth-child(3){margin-left:56px}.ladder-item:nth-child(4){margin-left:84px}
.foot-grid{grid-template-columns:1.3fr .7fr}
}
@media(min-width:768px) and (max-width:1023px){
.quote-grid,.score-grid,.step-list{grid-template-columns:1fr 1fr}
.quote-card:nth-child(2){margin-top:36px}
.metric-strip{grid-template-columns:repeat(4,minmax(0,1fr))}
.metric-cell{border-bottom:0}
}
@media(min-width:768px){
.quote-grid{grid-template-columns:1fr 1fr}
.quote-card:nth-child(2){margin-top:42px}
}
@media(max-width:1023px){:root{--pad:56px}.hero{padding:52px 0 48px}}
@media(max-width:767px){
.container{width:calc(100% - 28px)}
.ladder-item,.people-item{grid-template-columns:1fr}
.pain-top{align-items:flex-start;flex-direction:column}
.time-deco{display:none}
h1{font-size:34px}
}
@media(max-width:520px){
:root{--pad:44px}
.nav-bar{flex-wrap:wrap;padding:8px 0}
.nav-actions{width:100%;justify-content:flex-end}
.btn{padding:0 12px;font-size:13px}
.hero-actions,.cta-actions{flex-direction:column}
.hero-actions .btn,.cta-actions .btn{width:100%}
.logo{font-size:14px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* roulang page: category2 */
:root{--bg:#061018;--bg-2:#081a2b;--ink:#e8f4ff;--muted:#b7c9d8;--cyan:#3ee0ff;--cyan-2:#8af2ff;--copper:#f0a08c;--copper-deep:#d4785a;--line:rgba(62,224,255,.28);--glass:rgba(255,255,255,.06);--radius:16px;--shadow:0 0 0 1px rgba(62,224,255,.06),0 16px 40px rgba(0,0,0,.28);--pad:92px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(980px 460px at 8% -8%,rgba(62,224,255,.16),transparent 56%),radial-gradient(760px 380px at 100% 0%,rgba(212,120,90,.12),transparent 50%),var(--bg);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:17px;line-height:1.75}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,summary{font:inherit;color:inherit}
h1,h2,h3,p,ol,ul{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:rgba(62,224,255,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:min(1120px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(6,16,24,.8);border-bottom:1px solid rgba(62,224,255,.18);backdrop-filter:blur(18px);box-shadow:0 8px 28px rgba(0,0,0,.22)}
.nav-bar{display:flex;align-items:center;gap:16px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;width:max-content;max-width:46%;color:#fff;font-weight:760;letter-spacing:-.04em;line-height:1.15;font-size:16px}
.logo-mark{width:34px;height:34px;border-radius:11px;border:1px solid var(--line);background:linear-gradient(160deg,rgba(62,224,255,.28),rgba(255,255,255,.04));box-shadow:0 0 16px rgba(62,224,255,.28);position:relative;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;left:7px;right:7px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.logo-mark:before{top:12px}
.logo-mark:after{top:20px}
.nav-links{display:none;align-items:center;gap:6px;margin-left:8px}
.nav-links a{position:relative;padding:10px 12px;color:var(--muted);font-size:15px;border-radius:999px}
.nav-links a:hover{color:#fff;background:rgba(62,224,255,.08)}
.nav-links a.is-active{color:#fff;box-shadow:inset 0 -2px 0 var(--cyan)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid transparent;font-size:14px;font-weight:760;letter-spacing:.01em;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{color:#04202a;background:linear-gradient(180deg,#7cf3ff,#14b7df);box-shadow:0 0 0 1px rgba(212,120,90,.9),0 0 22px rgba(62,224,255,.48)}
.btn-primary:hover{box-shadow:0 0 0 1px #f0b19f,0 0 32px rgba(62,224,255,.72)}
.btn-ghost{color:#fff;background:rgba(8,24,38,.4);box-shadow:inset 0 0 0 1px rgba(62,224,255,.72),0 0 16px rgba(62,224,255,.16)}
.btn-ghost:hover{border-color:var(--cyan);box-shadow:inset 0 0 0 1px var(--cyan),0 0 22px rgba(62,224,255,.32)}
.menu-btn{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);display:inline-flex;align-items:center;justify-content:center}
.menu-btn span.bars,.menu-btn span.bars:before,.menu-btn span.bars:after{display:block;width:16px;height:1.5px;background:#e8f4ff;position:relative;box-shadow:0 0 8px rgba(62,224,255,.4)}
.menu-btn span.bars:before,.menu-btn span.bars:after{content:"";position:absolute;left:0}
.menu-btn span.bars:before{top:-6px}
.menu-btn span.bars:after{top:6px}
.mobile-nav{display:none;padding:4px 0 16px}
.mobile-nav.is-open{display:grid;gap:6px}
.mobile-nav a{padding:12px 12px;border-radius:12px;color:var(--muted);border:1px solid transparent}
.mobile-nav a:hover,.mobile-nav a.is-active{color:#fff;border-color:var(--line);background:rgba(62,224,255,.06)}
.section{padding:var(--pad) 0;border-top:1px solid rgba(62,224,255,.08);position:relative}
.band-a{background:linear-gradient(180deg,rgba(8,28,48,.78),rgba(8,28,48,.5))}
.band-b{background:linear-gradient(180deg,rgba(6,16,24,.2),rgba(8,26,42,.72))}
.section-title{font-size:clamp(26px,3vw,36px);line-height:1.25;letter-spacing:-.035em;font-weight:760;margin-bottom:12px}
.section-lead,.hero-lead{color:var(--muted);max-width:40rem}
.hero-lead{margin-top:16px}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
.glass:hover{border-color:rgba(62,224,255,.55);box-shadow:0 0 0 1px rgba(62,224,255,.18),0 18px 36px rgba(0,0,0,.28),0 0 24px rgba(62,224,255,.12)}
.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--cyan-2);font-size:13px;letter-spacing:.12em}
.kicker:before{content:"";width:6px;height:6px;border-radius:999px;background:var(--copper);box-shadow:0 0 8px var(--copper)}
.brand-line{margin-top:14px;color:#fff;font-weight:760;letter-spacing:-.03em}
h1{font-size:clamp(32px,4.4vw,50px);line-height:1.18;letter-spacing:-.045em;font-weight:760;margin-top:8px}
.mast{border-top:0;padding-top:54px;overflow:hidden}
.mast:before{content:"";position:absolute;inset:18px auto auto 0;width:42%;height:1px;background:linear-gradient(90deg,transparent,rgba(62,224,255,.8),transparent)}
.mast-grid,.note-split,.cta-panel,.foot-grid{display:grid;gap:22px}
.time-board{padding:22px 22px 8px;position:relative}
.time-board:after{content:"";position:absolute;left:22px;right:22px;top:18px;height:1px;background:linear-gradient(90deg,transparent,rgba(62,224,255,.75),transparent)}
.time-rail{margin-top:18px}
.time-rail li{display:grid;grid-template-columns:74px 1fr;gap:12px;padding:14px 0;border-top:1px solid rgba(62,224,255,.14)}
.time-rail time,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--cyan-2)}
.time-rail strong,.mini-card h3,.pick-item a,.rhythm-item strong{font-weight:760}
.time-rail p,.mini-card p,.pick-item p,.rhythm-item p,.faq-item p,.note-copy,.side-note p{color:var(--muted);font-size:15px;line-height:1.75}
.param-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:26px}
.param-item{padding:12px 14px;border-radius:14px;border:1px solid rgba(62,224,255,.16);background:rgba(8,20,32,.45)}
.param-item b{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:20px;color:#fff;font-weight:700}
.param-item span{color:var(--muted);font-size:13px}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;border:1px solid rgba(212,120,90,.55);color:#ffd5c8;background:rgba(212,120,90,.1);padding:2px 10px;font-size:12px;line-height:1.7}
.gold-dot{width:6px;height:6px;border-radius:50%;background:#e6c36a;box-shadow:0 0 8px #e6c36a;display:inline-block}
.dual-grid{display:grid;gap:14px}
.mini-card{padding:18px;display:flex;flex-direction:column;gap:8px;min-height:0}
.mini-card h3{font-size:18px;line-height:1.45}
.mini-card h3 a{color:var(--copper)}
.mini-card h3 a:hover{color:#ffd2c4}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 14px;color:#8eabc0;font-size:13px}
.more-row{display:flex;justify-content:flex-end;margin-top:18px}
.rhythm-list{display:grid;gap:12px}
.rhythm-item{display:grid;grid-template-columns:86px 1fr;gap:14px;padding:16px 18px;position:relative}
.step-no{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--cyan);font-size:22px}
.pick-list{display:grid;gap:12px}
.pick-item{display:grid;gap:6px;padding:16px 18px}
.pick-item a{color:var(--copper);font-size:18px;line-height:1.45}
.pick-item a:hover{color:#ffd2c4}
.pick-item.hot{border-color:rgba(212,120,90,.7);box-shadow:0 0 24px rgba(212,120,90,.14)}
.side-note{padding:18px}
.side-note h3{font-size:18px;margin:8px 0}
.faq-list{display:grid;gap:10px}
.faq-item{padding:0 18px}
.faq-item summary{cursor:pointer;padding:16px 0;font-weight:760;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";color:var(--cyan);font-weight:400}
.faq-item[open] summary:after{content:"–"}
.faq-item p{padding-bottom:16px}
.metric-line{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.03)}
.metric-item{padding:16px 18px;border-right:1px solid rgba(62,224,255,.14);border-bottom:1px solid rgba(62,224,255,.14)}
.metric-item b{display:block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:28px;line-height:1.1;color:#fff}
.metric-item span{color:var(--muted);font-size:13px}
.cta-panel{padding:28px;align-items:center;background:linear-gradient(135deg,rgba(62,224,255,.08),rgba(212,120,90,.08));position:relative}
.cta-panel:before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:linear-gradient(180deg,transparent,var(--cyan),transparent)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.lane{height:10px;margin-top:18px;background:repeating-linear-gradient(90deg,rgba(62,224,255,.0) 0 18px,rgba(62,224,255,.45) 18px 19px);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.site-footer{border-top:1px solid rgba(62,224,255,.16);padding:42px 0 28px;background:rgba(4,10,16,.72)}
.foot-brand{font-weight:760;font-size:18px;margin-bottom:8px}
.foot-note{color:var(--muted);font-size:14px;max-width:36rem}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 16px}
.foot-links a{color:var(--copper);font-size:14px}
.foot-links a:hover{color:#ffd2c4}
.copy{margin-top:22px;color:#8eabc0;font-size:13px}
@media(min-width:768px){
:root{--pad:72px}
.param-strip{grid-template-columns:repeat(4,minmax(0,1fr))}
.dual-grid{grid-template-columns:1fr 1fr}
.metric-line{grid-template-columns:repeat(4,minmax(0,1fr))}
.metric-item{border-bottom:0}
.foot-grid{grid-template-columns:1.4fr .8fr;align-items:start}
.mast-grid{grid-template-columns:1.05fr .95fr;align-items:start}
.note-split{grid-template-columns:1.25fr .75fr}
.cta-panel{grid-template-columns:1.4fr auto}
}
@media(min-width:1024px){
:root{--pad:92px}
.nav-links{display:flex}
.menu-btn,.mobile-nav{display:none !important}
.logo{max-width:none}
.dual-grid{grid-template-columns:1.15fr .85fr;align-items:start;padding-bottom:28px}
.mini-card:nth-child(2n){margin-top:28px}
.rhythm-list{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
:root{--pad:44px}
.container{width:min(1120px,calc(100% - 28px))}
.nav-actions .btn{padding:0 10px;font-size:13px;min-height:36px}
.logo{font-size:14px}
.time-rail li,.rhythm-item{grid-template-columns:64px 1fr}
.metric-item:nth-child(2n){border-right:0}
}
@media(max-width:520px){
.nav-bar{gap:8px}
.logo{max-width:42%}
h1{font-size:30px}
.param-item b{font-size:18px}
}

/* roulang page: category1 */
:root{--bg:#061018;--bg-2:#081a2b;--ink:#e8f4ff;--muted:#b7c9d8;--cyan:#3ee0ff;--cyan-2:#8af2ff;--copper:#f0a08c;--copper-deep:#d4785a;--line:rgba(62,224,255,.28);--glass:rgba(255,255,255,.06);--radius:16px;--shadow:0 0 0 1px rgba(62,224,255,.06),0 16px 40px rgba(0,0,0,.28);--pad:92px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(980px 460px at 8% -8%,rgba(62,224,255,.16),transparent 56%),radial-gradient(760px 380px at 100% 0%,rgba(212,120,90,.12),transparent 50%),var(--bg);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:17px;line-height:1.75}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:min(1120px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(6,16,24,.8);border-bottom:1px solid rgba(62,224,255,.18);backdrop-filter:blur(18px);box-shadow:0 8px 28px rgba(0,0,0,.22)}
.nav-bar{display:flex;align-items:center;gap:16px;min-height:76px}
.logo{display:flex;align-items:center;gap:10px;width:max-content;max-width:46vw;color:#fff;font-weight:760;letter-spacing:-.04em;line-height:1.15;font-size:16px}
.logo-mark{width:34px;height:34px;border-radius:11px;border:1px solid var(--line);background:linear-gradient(160deg,rgba(62,224,255,.28),rgba(255,255,255,.04));box-shadow:0 0 16px rgba(62,224,255,.28);position:relative;flex:none}
.logo-mark:before,.logo-mark:after{content:"";position:absolute;left:7px;right:7px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.logo-mark:before{top:12px}
.logo-mark:after{top:20px}
.logo-text{display:block}
.nav-links{display:none;align-items:center;gap:6px;margin-left:8px}
.nav-links a{position:relative;padding:10px 12px;color:var(--muted);font-size:15px;border-radius:999px}
.nav-links a:hover{color:#fff;background:rgba(62,224,255,.08)}
.nav-links a.is-active{color:#fff;box-shadow:inset 0 -2px 0 var(--cyan)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid transparent;font-size:14px;font-weight:760;letter-spacing:.01em;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;background:transparent}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{color:#04202a;background:linear-gradient(180deg,#7cf3ff,#14b7df);box-shadow:0 0 0 1px rgba(212,120,90,.9),0 0 22px rgba(62,224,255,.48)}
.btn-primary:hover{box-shadow:0 0 0 1px #f0b19f,0 0 32px rgba(62,224,255,.72)}
.btn-ghost{color:#fff;background:rgba(8,24,38,.4);box-shadow:inset 0 0 0 1px rgba(62,224,255,.72),0 0 16px rgba(62,224,255,.16)}
.btn-ghost:hover{border-color:var(--cyan);box-shadow:inset 0 0 0 1px var(--cyan),0 0 22px rgba(62,224,255,.32)}
.menu-btn{width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);display:inline-flex;align-items:center;justify-content:center}
.menu-btn span.bars,.menu-btn span.bars:before,.menu-btn span.bars:after{display:block;width:16px;height:1.5px;background:#e8f4ff;position:relative;box-shadow:0 0 8px rgba(62,224,255,.4)}
.menu-btn span.bars:before,.menu-btn span.bars:after{content:"";position:absolute;left:0}
.menu-btn span.bars:before{top:-6px}
.menu-btn span.bars:after{top:6px}
.mobile-nav{display:none;padding:4px 0 16px}
.mobile-nav.is-open{display:grid;gap:6px}
.mobile-nav a{padding:12px 12px;border-radius:12px;color:var(--muted);border:1px solid transparent}
.mobile-nav a:hover,.mobile-nav a.is-active{color:#fff;border-color:var(--line);background:rgba(62,224,255,.06)}
.section{padding:var(--pad) 0;border-top:1px solid rgba(62,224,255,.08);position:relative}
.band-a{background:linear-gradient(180deg,rgba(8,28,48,.78),rgba(8,28,48,.5))}
.band-b{background:linear-gradient(180deg,rgba(6,16,24,.2),rgba(10,32,52,.66))}
.section-title{font-size:clamp(26px,3vw,36px);line-height:1.25;letter-spacing:-.035em;font-weight:760;margin:0 0 12px}
.section-lead,.hero-lead{color:var(--muted);max-width:40rem}
.section-lead{margin:0 0 26px}
.tag{display:inline-flex;align-items:center;border-radius:999px;border:1px solid rgba(212,120,90,.55);color:#ffd5c8;background:rgba(212,120,90,.1);padding:2px 10px;font-size:12px;line-height:1.7}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}
.page-head{padding:42px 0 36px;overflow:hidden}
.head-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(260px,.72fr);gap:22px;align-items:stretch}
.kicker{margin:0 0 10px;color:var(--cyan-2);font-size:13px;letter-spacing:.08em}
.page-head h1{margin:0;font-size:clamp(32px,4vw,48px);line-height:1.16;letter-spacing:-.045em;font-weight:760}
.page-head .hero-lead{margin-top:14px;font-size:17px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.head-panel{position:relative;padding:20px 20px 8px;overflow:hidden}
.head-panel svg{width:100%;height:92px;margin-bottom:8px}
.kpi-line{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:13px 0;border-top:1px solid rgba(62,224,255,.16);color:var(--muted);font-size:14px}
.kpi-line strong{color:#fff;font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-weight:700;letter-spacing:.02em}
.gold-dot{width:7px;height:7px;border-radius:50%;background:#e7c27a;box-shadow:0 0 8px rgba(231,194,122,.8);display:inline-block;margin-right:6px}
.filter-bar{padding:16px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{min-height:36px;padding:0 14px;border-radius:999px;border:1px solid rgba(62,224,255,.28);background:rgba(8,22,36,.45);color:var(--muted);font-size:14px;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease}
.chip:hover{color:#fff;border-color:var(--cyan)}
.chip.is-on{color:#04202a;background:linear-gradient(180deg,#8af2ff,#3ec8ea);border-color:rgba(212,120,90,.85);box-shadow:0 0 16px rgba(62,224,255,.35)}
.list-stack{display:grid;gap:16px}
.source-card{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(220px,.7fr);gap:18px;padding:22px;position:relative;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.source-card:before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:2px;background:linear-gradient(180deg,transparent,var(--cyan),transparent)}
.source-card.is-hot:before{background:linear-gradient(180deg,transparent,var(--copper),transparent)}
.source-card:hover{transform:translateY(-3px);border-color:rgba(62,224,255,.55);box-shadow:0 0 0 1px rgba(62,224,255,.2),0 18px 36px rgba(0,0,0,.28),0 0 26px rgba(62,224,255,.16)}
.source-card h3{margin:8px 0;font-size:24px;line-height:1.35;letter-spacing:-.03em}
.source-card h3 a{color:var(--copper)}
.source-card h3 a:hover{color:#ffd2c4}
.source-card p{margin:0;color:var(--muted);font-size:16px;max-width:42rem}
.card-side{display:flex;flex-direction:column;justify-content:space-between;gap:12px;padding:12px 0 12px 16px;border-left:1px solid rgba(62,224,255,.16)}
.mono{font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;color:#fff;font-size:18px;letter-spacing:.03em}
.side-label{color:#8eabc0;font-size:12px}
.more-row{display:flex;justify-content:flex-start;margin-top:16px}
.empty-hint{display:none;margin:14px 0 0;color:var(--muted)}
.empty-hint.is-show{display:block}
.ladder{display:grid;gap:0}
.ladder-step{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:18px 0;border-top:1px solid rgba(62,224,255,.16)}
.ladder-step strong{font-size:20px}
.ladder-step p{margin:4px 0 0;color:var(--muted);font-size:15px}
.entry-list{display:grid;gap:10px}
.entry-link{display:grid;grid-template-columns:88px minmax(0,1fr) auto;gap:14px;align-items:center;padding:16px 18px;color:var(--ink)}
.entry-link:hover{border-color:rgba(240,160,140,.7);transform:translateY(-2px)}
.entry-link b{color:var(--copper);font-size:18px;font-weight:760}
.entry-link span{color:var(--muted);font-size:14px}
.scene-list{display:grid;gap:10px}
.scene-row{display:grid;grid-template-columns:92px minmax(0,1fr);gap:16px;padding:16px 18px;align-items:start}
.scene-row strong{font-size:18px}
.scene-row p{margin:0;color:var(--muted);font-size:15px}
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}
.compare-col{padding:22px}
.compare-col h3{margin:0 0 12px;font-size:20px}
.compare-col li{padding:12px 0;border-top:1px solid rgba(62,224,255,.14);color:var(--muted);list-style:none}
.compare-col ul{margin:0;padding:0}
.compare-col li b{color:#fff;font-weight:700}
.cta-band{padding:28px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;position:relative;overflow:hidden}
.cta-band:before{content:"";position:absolute;left:8%;right:8%;top:14px;height:1px;background:linear-gradient(90deg,transparent,rgba(62,224,255,.8),transparent)}
.cta-band h2{margin-top:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px}
.site-footer{border-top:1px solid rgba(62,224,255,.16);padding:42px 0 28px;background:rgba(4,12,20,.72)}
.foot-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:22px;align-items:start}
.foot-brand{margin:0 0 8px;font-size:20px;font-weight:760;letter-spacing:-.03em}
.foot-note{margin:0;color:var(--muted);max-width:36rem;font-size:15px}
.foot-links{display:flex;flex-wrap:wrap;gap:8px 16px}
.foot-links a{color:var(--muted);font-size:14px}
.foot-links a:hover{color:var(--copper)}
.copy{margin:22px 0 0;padding-top:16px;border-top:1px solid rgba(62,224,255,.12);color:#8eabc0;font-size:13px}
.is-extra{display:none}
.is-extra.is-shown{display:grid}
@media(max-width:1024px){
:root{--pad:56px}
.nav-links{display:none}
.menu-btn{display:inline-flex}
.head-grid,.source-card,.split,.foot-grid,.cta-band{grid-template-columns:1fr}
.card-side{border-left:0;border-top:1px solid rgba(62,224,255,.16);padding:14px 0 0}
}
@media(min-width:1025px){
.nav-links{display:flex}
.menu-btn,.mobile-nav{display:none!important}
}
@media(max-width:768px){
:root{--pad:44px}
.ladder-step,.scene-row,.entry-link{grid-template-columns:1fr;gap:6px}
.page-head h1{font-size:32px}
}
@media(max-width:520px){
.container{width:min(1120px,calc(100% - 28px))}
.logo{font-size:13px;max-width:34vw}
.logo-text{max-width:6.6em}
.nav-actions{gap:6px}
.nav-actions .btn{min-height:36px;padding:0 10px;font-size:13px}
.source-card h3{font-size:20px}
.cta-actions,.head-actions{width:100%}
.cta-actions .btn,.head-actions .btn{flex:1}
}