/* roulang page: index */
:root{
  --bg:#FAFAF8;
  --surface:#FFFFFF;
  --surface-2:#F0F0EC;
  --ink:#1A1A1A;
  --ink-2:#444444;
  --muted:#777777;
  --line:#DDDDD8;
  --line-2:#E5E5E0;
  --accent:#E8FF00;
  --accent-soft:#F7FF99;
  --success:#C6FF4A;
  --radius-sm:4px;
  --radius-card:12px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.04);
  --shadow-2:0 8px 24px rgba(0,0,0,.08);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --space:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--ink);transition:background-color .2s,color .2s,box-shadow .2s}
a:hover{background:var(--accent);color:#000}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #111;outline-offset:2px;box-shadow:0 0 0 4px rgba(232,255,0,.45)}
p{margin:0 0 1em}
h1,h2,h3,h4{font-weight:800;line-height:1.3;color:#000;margin:0 0 .55em}
.container{max-width:1200px}
.text-soft{color:var(--muted)}
.text-grey{color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.5em;
  font-size:.82rem;font-weight:700;letter-spacing:.12em;color:#000;
  background:var(--accent);padding:.28em .8em;border-radius:var(--radius-pill);
}
.eyebrow::before{content:"";width:6px;height:6px;background:#111;border-radius:50%;flex:none}
.section{padding:var(--space) 0}
.section-head{max-width:820px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);letter-spacing:-.02em}
.section-lead{font-size:1.06rem;color:var(--ink-2);max-width:760px}

/* ========== Header ========== */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s,background .25s;
}
.site-header.is-scrolled{
  box-shadow:0 6px 18px rgba(0,0,0,.05);
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
}
.top-brand{border-bottom:1px solid var(--line-2);background:#fff;position:relative;z-index:2}
.top-brand-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:58px}
.brand{
  display:inline-flex;align-items:center;gap:10px;text-decoration:none;
  background:transparent !important;flex:none;
}
.brand:hover{background:transparent !important}
.logo-mark{
  width:30px;height:30px;border-radius:6px;background:#111;
  display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:4px;flex:none;
}
.logo-mark i{display:block;background:#fff;border-radius:1px}
.logo-mark i:nth-child(2){background:var(--accent)}
.logo-mark i:nth-child(3){opacity:.35}
.logo-mark i:nth-child(4){background:#fff}
.brand-text{font-size:1.22rem;font-weight:800;letter-spacing:-.03em;line-height:1.1}
.brand-tag{
  display:block;font-size:.66rem;font-weight:500;letter-spacing:.18em;color:var(--muted);margin-top:2px;
}
.brand-action{display:flex;align-items:center;gap:10px}
.top-search{
  flex:1;max-width:480px;display:none;align-items:center;gap:8px;
  background:var(--surface-2);border:1px solid #E8E8E3;border-radius:var(--radius-pill);
  padding:6px 16px;color:var(--muted);
}
.top-search.is-open{display:flex}
.top-search input{
  border:0;background:transparent;width:100%;min-width:0;outline:none;font-size:.9rem;color:#111;
}
.top-search input::placeholder{color:#8A8A86}
.search-icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;color:#222;text-decoration:none;
}
.search-icon-btn:hover{background:var(--accent);color:#000;border-color:#111;transform:none}
.navbar-toggler{
  border:1px solid var(--line);border-radius:8px;width:42px;height:40px;
  display:grid;place-items:center;background:#fff;color:#111;
}
.navbar-toggler:hover{background:var(--accent);border-color:#111}
.navbar-toggler .bar{display:block;width:18px;height:2px;background:#111;margin:3px auto}
.channel-bar{background:var(--surface);position:relative;z-index:1}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:50px}
.channel-scroll{display:flex;align-items:stretch;gap:4px;overflow-x:auto;scrollbar-width:none;min-width:0}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;gap:.4em;height:50px;padding:.2em .5em;margin-right:16px;
  font-weight:700;color:#333;text-decoration:none;position:relative;white-space:nowrap;font-size:.98rem;
}
.channel-link::after{
  content:"";position:absolute;left:.5em;right:.5em;bottom:-1px;height:3px;border-radius:3px;
  background:#111;transform:scaleX(0);transform-origin:center;transition:transform .2s;
}
.channel-link:hover{background:transparent;color:#000}
.channel-link.active{color:#111}
.channel-link.active::after{transform:scaleX(1)}
.channel-meta{display:flex;align-items:center;gap:10px;flex:none;padding-left:10px;border-left:1px solid var(--line)}
.hot-links{display:flex;align-items:center;gap:8px;white-space:nowrap}
.hot-label{font-size:.68rem;letter-spacing:.1em;color:#999;font-weight:700;margin-right:2px}
.hot-links a{font-size:.78rem;text-decoration:none;color:#555;font-weight:600;padding:2px 5px;border-radius:4px}
.hot-links a:hover{background:var(--accent);color:#000}
.header-cta-btn{
  font-size:.82rem;font-weight:700;text-decoration:none;background:#111;color:#fff;
  border-radius:var(--radius-pill);padding:.38em 1em;white-space:nowrap;display:inline-flex;align-items:center;gap:.4em;
}
.header-cta-btn:hover{background:var(--accent);color:#000}
.mobile-nav{border-top:1px solid var(--line-2)}
.mobile-nav .mobile-inner{padding:16px 0 18px}
.mobile-search{display:flex;gap:8px;width:100%;margin-bottom:12px}
.form-pill{
  display:flex;background:#fff;border:1px solid #D7D7D1;border-radius:var(--radius-pill);
  overflow:hidden;align-items:center;
}
.form-pill:focus-within{border-color:#111;box-shadow:0 0 0 4px rgba(232,255,0,.55)}
.form-pill input{flex:1;min-width:0;border:0;outline:0;padding:.6em 1em;background:transparent}
.form-pill button{
  border:0;background:#111;color:#fff;padding:.6em 1.1em;border-radius:var(--radius-pill);
  font-weight:700;white-space:nowrap;margin:3px;font-size:.85rem;
}
.form-pill button:hover{background:var(--accent);color:#000}
.mobile-navlinks{display:flex;flex-direction:column;row-gap:4px;margin:6px 0 12px}
.mobile-navlinks a{
  text-decoration:none;font-weight:700;color:#222;padding:12px 10px;border-radius:10px;font-size:1rem;
}
.mobile-navlinks a:hover{background:var(--surface-2);color:#000}
.mobile-navlinks a.active{background:#111;color:#fff}
.mobile-hot{display:flex;flex-wrap:wrap;gap:8px}
.mobile-hot a{font-size:.85rem;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:.2em .8em;color:#444}

/* ========== Buttons ========== */
.btn-hb{
  --btn-bg:#111;--btn-fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.72em 1.7em;border-radius:var(--radius-pill);border:1px solid #111;
  background:var(--btn-bg);color:var(--btn-fg);font-weight:700;
  font-size:.95rem;text-decoration:none;line-height:1.4;min-height:44px;
  transition:background .15s,color .15s,transform .1s,box-shadow .12s;
}
.btn-hb:hover{background:var(--accent);color:#000;text-decoration:none;box-shadow:0 4px 0 #111}
.btn-hb:active{box-shadow:0 1px 0 #111;transform:translateY(3px)}
.btn-hb.btn-lg{padding:.85em 2.1em;font-size:1.02rem}
.btn-hb.btn-white{--btn-bg:#fff;--btn-fg:#111}
.btn-hb.btn-white:hover{--btn-bg:var(--accent)}
.btn-hb.btn-yellow{--btn-bg:var(--accent);--btn-fg:#111;border-color:#111}
.btn-hb.btn-ghost{--btn-bg:transparent;--btn-fg:#fff;border-color:#fff}
.btn-hb.btn-ghost:hover{--btn-bg:#fff;--btn-fg:#111}
.link-arrow{white-space:nowrap;font-weight:700;font-size:.95rem;text-underline-offset:5px}
.link-arrow:hover{text-decoration:none}

/* ========== Hero ========== */
.hero{position:relative;background:var(--bg);overflow:hidden;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;padding:82px 0 100px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;letter-spacing:.12em;font-weight:800;color:#555;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:.3em .9em;margin-bottom:20px}
.hero-eyebrow .live-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);border:1px solid #111}
.hero h1{font-size:clamp(1.8rem,4.2vw,3.2rem);line-height:1.27;letter-spacing:-.025em;margin-bottom:22px}
.hero .hl{background:linear-gradient(transparent 58%,var(--accent) 58%,var(--accent) 92%);padding:0 .12em;line-height:1.15;display:inline-block}
.hero p.lead{font-size:1.08rem;color:var(--ink-2);max-width:560px;margin-bottom:26px}
.hero-search{max-width:600px;width:100%;margin:0 0 20px}
.hero-search .form-pill{border-radius:var(--radius-pill);box-shadow:var(--shadow-1);padding:4px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px;margin-bottom:24px}
.hero-trusted{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--muted);font-size:.8rem}
.hero-trusted .tick{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:.15em .85em;color:#555;font-weight:600}
.hero-trusted .tick i{width:14px;height:14px;border-radius:50%;background:var(--success);border:1px solid #111;display:grid;place-items:center;color:#111;font-size:10px;font-style:normal;font-weight:900}
.hero-visual{position:relative}
.hero-slide-no{
  position:absolute;top:-34px;right:-6px;font-family:var(--mono);font-size:88px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px #D2D2CC;pointer-events:none;user-select:none;z-index:0;
}
.hero-frame{
  position:relative;z-index:1;background:#fff;border:1px solid #C9C9C3;border-radius:10px;
  box-shadow:var(--shadow-2);overflow:hidden;
}
.hero-frame-top{
  height:40px;background:#F7F7F4;border-bottom:1px solid #DDDDD8;
  display:flex;align-items:center;padding:0 14px;gap:8px;
}
.hero-frame-top i{width:9px;height:9px;border-radius:50%;display:inline-block;background:#E1E1DB}
.hero-frame-top i:first-child{background:#FF6B60;opacity:.85}
.hero-frame-top i:nth-child(2){background:var(--accent);border:1px solid #ccd}
.hero-frame-top i:nth-child(3){background:var(--success)}
.hero-frame-url{margin-left:8px;border:1px solid #E0E0DB;background:#fff;font-size:.72rem;border-radius:6px;padding:.13em .8em;color:#888}
.hero-frame-tag{margin-left:auto;font-size:.66rem;color:#aaa;letter-spacing:.08em}
.hero-frame-visual{position:relative;height:330px;overflow:hidden;background:#0d0d0d}
.hero-frame-visual img{width:100%;height:100%;object-fit:cover;opacity:.94}
.hero-frame-grid::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(232,255,0,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(232,255,0,.06) 1px,transparent 1px);
  background-size:28px 28px;
}
.hero-coord{
  position:absolute;left:16px;top:14px;z-index:2;font-family:var(--mono);font-size:.7rem;color:#fff;
  background:rgba(0,0,0,.74);border:1px solid rgba(255,255,255,.4);padding:.2em .7em;border-radius:4px;letter-spacing:.1em;
}
.hero-frame-note{
  position:absolute;left:16px;bottom:14px;z-index:2;max-width:70%;color:#fff;font-weight:700;font-size:.88rem;line-height:1.5;
  background:rgba(0,0,0,.72);border-left:4px solid var(--accent);padding:.6em .9em;border-radius:4px;
}
.hero-frame-note small{display:block;font-weight:400;color:#cacaca;font-size:.75rem;margin-top:2px}
.hero-frame-cap{
  background:#fff;border-top:1px solid var(--line);padding:10px 16px;
  display:flex;align-items:center;gap:14px;font-size:.76rem;color:#777;
}
.hero-frame-cap i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 0 2px #fff,0 0 0 3px #111}
.hero-scroll{
  position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  text-align:center;color:#888;font-size:.72rem;letter-spacing:.2em;text-decoration:none;opacity:.5;line-height:1.2;
}
.hero-scroll span{display:block;margin:2px auto 0;width:1px;height:34px;background:linear-gradient(#999,#999 14px,transparent 15px);background-size:1px 14px;background-repeat:no-repeat}
.hero-scroll:hover{opacity:1;background:transparent;color:#444}

/* ========== Pain ========== */
.pain-section{background:var(--surface);border-bottom:1px solid var(--line)}
.pain-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center}
.pain-copy h2{font-size:clamp(1.6rem,3vw,2.45rem);letter-spacing:-.02em}
.pain-copy .num-line{font-family:var(--mono);font-size:.84rem;color:#aaa;margin-bottom:10px}
.pain-copy p{color:var(--ink-2);font-size:1rem}
.pain-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pain-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px 18px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s;min-height:150px;position:relative;
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#111}
.pain-card .no{font-family:var(--mono);font-size:.93rem;font-weight:700;color:#aaa;margin-bottom:12px;letter-spacing:.08em}
.pain-card .no b{color:#111}
.pain-card h4{font-size:1.02rem;margin-bottom:6px}
.pain-card p{color:var(--ink-2);font-size:.86rem;line-height:1.65;margin:0}
.pain-mark{
  position:absolute;right:12px;top:8px;font-size:38px;line-height:1;color:#ededE7;font-weight:800;pointer-events:none;
}

/* ========== Solution dark ========== */
.solution-section{
  background:var(--ink);color:#fff;
  padding:var(--space) 0;position:relative;overflow:hidden;
}
.solution-section::before{
  content:"";position:absolute;right:-120px;top:-120px;width:300px;height:300px;border:1px solid rgba(255,255,255,.16);border-radius:50%;
}
.solution-section::after{
  content:"";position:absolute;right:-40px;top:-40px;width:90px;height:90px;background:var(--accent);border-radius:50%;opacity:.16;
}
.solution-head{max-width:760px;margin-bottom:46px;position:relative;z-index:1}
.solution-head .eyebrow{background:var(--accent)}
.solution-head h2{color:#fff;font-size:clamp(1.6rem,3vw,2.4rem)}
.solution-head p{color:#B9B9B9}
.solution-list{display:flex;flex-direction:column;gap:1px;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.2);border-radius:18px;overflow:hidden}
.solution-row{
  display:grid;grid-template-columns:80px 1.3fr 1fr auto;gap:24px;align-items:center;
  background:var(--ink);padding:26px 34px;transition:background .2s;position:relative;
}
.solution-row:hover{background:#171717}
.solution-row + .solution-row{border-top:1px solid rgba(255,255,255,.12)}
.solution-ico{
  width:54px;height:54px;border-radius:12px;background:#222;border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;color:var(--accent);
}
.solution-ico svg{width:26px;height:26px;stroke:#fff;fill:none;stroke-width:1.8}
.solution-main h3{color:#fff;margin-bottom:4px;font-size:1.1rem;letter-spacing:-.01em}
.solution-main p{color:#aaa;margin:0;max-width:580px;font-size:.9rem}
.solution-stat{
  text-align:right;font-family:var(--mono);padding-left:20px;border-left:1px solid rgba(255,255,255,.2);
}
.solution-stat b{
  display:block;font-size:2.3rem;line-height:1.1;color:var(--accent);background:#111;
  font-weight:800;letter-spacing:-.02em;
}
.solution-stat span{display:block;color:#aaa;font-size:.74rem;letter-spacing:.1em;font-family:var(--font)}

/* ========== Picks / featured ========== */
.picks-section{background:var(--bg)}
.pensec-top{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:32px;flex-wrap:wrap}
.pick-grid{display:grid;grid-template-columns:1.25fr .82fr .82fr;gap:16px}
.pick-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;color:inherit;text-decoration:none;transition:transform .2s,box-shadow .2s,border-color .2s;
  position:relative;
}
.pick-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2);border-color:var(--ink);color:inherit;text-decoration:none}
.pick-cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:#eee}
.pick-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.pick-card:hover .pick-cover img{transform:scale(1.04)}
.pick-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 70%,rgba(0,0,0,.18));pointer-events:none}
.pick-badge{
  position:absolute;left:14px;top:12px;z-index:2;font-size:.7rem;font-weight:800;line-height:1;
  padding:.44em .8em;border-radius:4px;letter-spacing:.06em;
}
.pick-badge.b-yellow{background:var(--accent);color:#111;border:1px solid #111}
.pick-badge.b-dark{background:#111;color:#fff}
.pick-body{padding:18px 18px 16px}
.pick-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.pick-tag{
  font-size:.68rem;background:var(--surface-2);color:#555;border-radius:var(--radius-pill);
  padding:.1em .75em;font-weight:600;
}
.pick-card.is-large{grid-row:span 2;display:flex;flex-direction:column}
.pick-card.is-large .pick-cover{flex:1;min-height:0}
.pick-card.is-large .pick-body{padding:24px}
.pick-card.is-large h3{font-size:1.32rem;margin-bottom:8px}
.pick-card.is-large p{color:var(--ink-2);font-size:.92rem;margin-bottom:12px}
.pick-title{font-weight:800;color:#111;font-size:1.02rem;line-height:1.45}
.more-pick{
  grid-column:1/-1;display:flex;justify-content:flex-end;margin-top:8px;
}
.more-pick a{font-size:.9rem;font-weight:700}

/* quick proof */
.facts-band{
  margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  display:grid;grid-template-columns:repeat(4,1fr);box-shadow:var(--shadow-1);
}
.fact-cell{padding:20px 18px;border-right:1px solid var(--line);text-align:left}
.fact-cell:last-child{border-right:0}
.fact-cell b{font-family:var(--mono);font-size:1.8rem;display:block;color:#111;letter-spacing:-.03em;line-height:1.1}
.fact-cell small{display:block;color:var(--muted);font-size:.85rem;line-height:1.4}

/* ========== notes ========== */
.notes-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.notes-grid{display:grid;grid-template-columns:1.5fr .9fr;gap:48px}
.notes-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.notes-list li{border-bottom:1px solid var(--line);padding:18px 2px 16px;display:grid;grid-template-columns:120px 1fr;gap:20px}
.notes-date{font-family:var(--mono);font-size:.8rem;color:#999;padding-top:3px}
.notes-list h3{font-size:.98rem;margin-bottom:4px}
.notes-list h3 a{text-decoration:none;color:#111}
.notes-list h3 a:hover{background:var(--accent)}
.notes-list p{font-size:.86rem;color:var(--ink-2);margin:0}
.notes-list .note-tag{font-size:.68rem;color:#777;background:var(--surface-2);border-radius:4px;padding:.12em .5em;margin-right:6px;font-weight:600}
.subscribe-box{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;
  position:sticky;top:130px;
}
.subscribe-box h3{font-size:1.1rem}
.subscribe-box p{color:var(--ink-2);font-size:.88rem}
.subscribe-meta{font-size:.76rem;color:var(--muted);margin-top:10px}
.news-feed-line{
  font-family:var(--mono);font-size:.72rem;color:#aaa;letter-spacing:.2em;display:block;margin-bottom:8px;
}

/* ========== Voices ========== */
.voices-section{background:var(--bg)}
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.voice-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 24px 20px;
  display:block;transition:transform .2s,box-shadow .2s;
}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.voice-card .q{
  display:block;font-size:2rem;line-height:.8;color:#111;opacity:.18;font-weight:900;margin-bottom:-2px;
}
.voice-card blockquote{margin:0 0 12px;color:var(--ink-2);font-size:.96rem;border:0;padding:0}
.voice-card .who{font-size:.82rem;color:var(--muted);font-weight:600}
.voice-card .who i{font-style:normal;margin-right:8px;display:inline-block;width:8px;height:8px;background:var(--accent)}
.voice-card.dark{
  background:#111;border-color:#111;
}
.voice-card.dark .q{color:#fff;opacity:.3}
.voice-card.dark blockquote{color:#ddd}
.voice-card.dark .who{color:#aaa}
.voice-card.dark .who i{background:var(--accent)}

/* ========== FAQ ========== */
.faq-section{background:var(--surface);border-top:1px solid var(--line)}
.faq-wrap{max-width:860px;margin:0 auto}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-head{
  width:100%;background:transparent;border:0;text-align:left;padding:20px 6px;
  font-weight:700;font-size:1rem;color:#111;display:flex;align-items:center;gap:14px;
  transition:background .2s;text-decoration:none;
}
.faq-head:hover{background:var(--surface-2)}
.faq-qno{font-family:var(--mono);font-size:.78rem;color:#999;flex:none;font-weight:400}
.faq-head .icon-x{margin-left:auto;flex:none;color:#999;font-size:1.3rem;font-weight:300;transition:transform .25s;font-family:var(--mono)}
.faq-item.open .icon-x{transform:rotate(45deg)}
.faq-answer{padding:0 26px 22px 40px;color:var(--ink-2);font-size:.94rem;line-height:1.9}
.faq-answer p:last-child{margin-bottom:0}
.faq-more{text-align:center;margin-top:30px}

/* ========== CTA ========== */
.cta-section{padding:70px 0;background:var(--bg)}
.cta-panel{
  position:relative;background:#fff;border:4px solid #111;border-radius:20px;
  padding:clamp(32px,6vw,64px);text-align:center;overflow:hidden;
}
.cta-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:8px;background:#111;
}
.cta-panel .cta-symbol{
  position:absolute;left:-10px;top:20px;font-family:var(--mono);font-size:150px;font-weight:800;color:var(--accent);opacity:.28;line-height:1;pointer-events:none;
}
.cta-panel h2{font-size:clamp(1.7rem,3.6vw,2.8rem);letter-spacing:-.03em;margin-bottom:18px;max-width:760px;margin-inline:auto}
.cta-panel p{color:var(--ink-2);max-width:660px;margin:0 auto 30px;font-size:1rem}
.cta-actions{display:flex;justify-content:center;gap:18px;flex-wrap:wrap}
.cta-suggest{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:34px;font-size:.8rem;color:#888}
.cta-suggest a{font-weight:700;text-decoration:none;border:1px solid var(--line);border-radius:var(--radius-pill);padding:.3em 1em;color:#555;background:#fff}
.cta-suggest a:hover{background:var(--accent);color:#000;border-color:#111}

/* ========== Footer ========== */
.site-footer{background:#0C0C0C;color:#C9C9C6;border-top:4px solid var(--accent)}
.footer-main{padding:56px 0 40px;display:grid;grid-template-columns:1.3fr .7fr;gap:56px}
.footer-brand{color:#fff;font-weight:800;font-size:1.2rem;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{width:24px;height:24px;padding:3px}
.footer-about p{font-size:.92rem;color:#999;max-width:520px;margin:0}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.footer-links h3{
  font-size:.75rem;letter-spacing:.2em;color:#666;text-transform:uppercase;margin-bottom:14px;font-weight:700;
}
.footer-links a{color:#B5B5B0;text-decoration:none;display:inline-block;margin-bottom:8px;font-size:.92rem}
.footer-links a:hover{color:#000;background:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:.82rem;color:#777;
  font-family:var(--mono);
}
.footer-bottom a{color:#999;text-decoration:none;font-family:var(--font)}
.footer-bottom a:hover{color:#000}

/* ========== responsive ========== */
@media(max-width:1199.98px){
  .pick-grid{grid-template-columns:1fr .8fr}
  .pick-card.is-large{grid-column:1/-1;grid-row:auto;display:grid;grid-template-columns:1.2fr 1fr}
  .pick-card.is-large .pick-cover{height:100%;min-height:220px}
  .fact-cell b{font-size:1.6rem}
  .hot-label{display:none}
}
@media(max-width:991.98px){
  :root{--space:64px}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:56px 0 70px}
  .hero-frame-visual{height:280px}
  .pain-inner{grid-template-columns:1fr;gap:36px}
  .solution-row{grid-template-columns:60px 1fr;padding:24px}
  .solution-stat{grid-column:1/-1;text-align:left;border-left:0;padding-left:0;display:flex;align-items:baseline;gap:8px;border-top:1px solid rgba(255,255,255,.12);padding-top:16px}
  .solution-stat b{font-size:1.6rem}
  .notes-grid{grid-template-columns:1fr}
  .subscribe-box{position:static}
  .footer-main{grid-template-columns:1fr;gap:40px}
  .voice-grid{grid-template-columns:1fr}
  .top-search{display:none}
  .channel-meta .hot-links{display:none}
}
@media(max-width:767.98px){
  .hero h1{font-size:clamp(1.55rem,5vw,2rem)}
  .hero p.lead{font-size:.98rem}
  .pain-cards{grid-template-columns:1fr}
  .pick-grid{grid-template-columns:1fr}
  .pick-card.is-large{display:block}
  .facts-band{grid-template-columns:1fr 1fr}
  .fact-cell{border-bottom:1px solid var(--line)}
  .fact-cell:nth-child(2){border-right:0}
  .fact-cell:nth-child(3){border-bottom:0}
  .fact-cell:nth-child(4){border-right:0;border-bottom:0}
  .solution-row{grid-template-columns:1fr;padding:22px}
  .notes-list li{grid-template-columns:1fr;gap:2px}
  .footer-links{grid-template-columns:1fr 1fr}
  .channel-inner{min-height:46px}
  .header-cta-btn{display:none}
  .cta-actions .btn-hb{width:100%}
}
@media(max-width:575.98px){
  :root{--space:52px}
  .hero{overflow:hidden}
  .hero-frame-visual{height:220px}
  .hero-grid{padding-top:32px}
  .top-brand-inner{min-height:54px}
  .brand-text{font-size:1.1rem}
  .brand-tag{display:none}
  .pensec-top{flex-direction:column;align-items:flex-start}
  .pick-card.is-large h3{font-size:1.15rem}
  .fact-cell b{font-size:1.35rem}
  .fact-cell small{font-size:.74rem}
  .voice-card{padding:20px}
  .faq-answer{padding-left:20px}
  .footer-links{gap:16px}
  .cta-panel .cta-symbol{font-size:90px}
  .channel-scroll .channel-link{margin-right:8px;height:46px;font-size:.92rem}
}

/* roulang page: category1 */
/* =========================================================
   黑白导航 · AI 工具分类页
   设计变量与全局组件，与整站保持一致
   ========================================================= */
:root{
  --bg:#FAFAF8;
  --surface:#FFFFFF;
  --surface-2:#F0F0EC;
  --ink:#1A1A1A;
  --ink-2:#444444;
  --muted:#777777;
  --line:#DDDDD8;
  --line-2:#E5E5E0;
  --accent:#E8FF00;
  --accent-soft:#F7FF99;
  --success:#C6FF4A;
  --radius-sm:4px;
  --radius-card:12px;
  --radius-pill:999px;
  --shadow-1:0 2px 8px rgba(0,0,0,.04);
  --shadow-2:0 8px 24px rgba(0,0,0,.08);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --space:80px;
}
html{scroll-behavior:smooth}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
ul,ol{padding-left:0}
h1,h2,h3,h4,h5,h6{font-weight:800;letter-spacing:-.02em;line-height:1.3;margin:0 0 .4em}
p{margin:0 0 1em}
a{color:inherit;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--ink);transition:background-color .2s,color .2s,box-shadow .2s}
a:hover{background:var(--accent);color:#000}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #111;outline-offset:2px;box-shadow:0 0 0 4px rgba(232,255,0,.45)}
button{font-family:var(--font)}
.container{max-width:1200px}
.text-soft{color:var(--muted)}
.text-grey{color:var(--ink-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.5em;
  font-size:.82rem;font-weight:700;letter-spacing:.08em;color:#000;
  background:var(--accent);padding:.28em .9em;border-radius:var(--radius-pill);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;background:#111;border-radius:50%;flex:none}
.section{padding:var(--space) 0}
.section-tight{padding:40px 0 64px}

/* ============ 按钮体系 ============ */
.btn-hb{
  --btn-bg:#111;--btn-fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.72em 1.7em;border-radius:var(--radius-pill);border:1px solid #111;
  background:var(--btn-bg);color:var(--btn-fg);font-weight:700;
  font-size:.95rem;text-decoration:none;line-height:1.4;min-height:44px;white-space:nowrap;
  transition:background .15s,color .15s,transform .15s,box-shadow .15s;
  cursor:pointer;
}
.btn-hb:hover{background:var(--accent);color:#000;text-decoration:none}
.btn-hb:active{transform:translateY(2px);box-shadow:0 2px 0 #000}
.btn-hb.btn-outline{background:#fff;color:#111}
.btn-hb.btn-outline:hover{background:#111;color:#fff}
.btn-hb.btn-outline-white{background:transparent;color:#fff;border-color:#fff}
.btn-hb.btn-outline-white:hover{background:var(--accent);color:#000;border-color:var(--accent)}
.btn-hb.btn-accent{background:var(--accent);color:#000;border-color:#111}
.btn-hb.btn-accent:hover{background:#111;color:#fff}
a.btn-hb{text-decoration:none}

/* ============ 徽章与标签 ============ */
.badge-hb{
  display:inline-flex;align-items:center;line-height:1;border-radius:4px;
  background:#111;color:#fff;font-size:11px;font-weight:700;
  padding:5px 9px;flex:none;letter-spacing:.02em;
}
.badge-hb.warn{background:var(--accent);color:#000}
.tag-sm{
  display:inline-flex;align-items:center;
  font-size:.76rem;line-height:1;padding:.35em .7em;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);font-weight:600;
  border:1px solid var(--line);white-space:nowrap;
}
.tag-sm.dark{background:#111;color:#fff}

/* ============ 顶部品牌栏 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--surface);border-bottom:1px solid var(--line);
  transition:box-shadow .25s,background .25s;
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(0,0,0,.05);background:rgba(255,255,255,.94);backdrop-filter:blur(8px)}
.top-brand{border-bottom:1px solid var(--line-2);background:#fff;position:relative;z-index:2}
.top-brand-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:58px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;background:transparent !important;flex:none;min-width:152px}
.brand:hover{background:transparent !important}
.logo-mark{
  width:30px;height:30px;border-radius:6px;background:#111;
  display:grid;grid-template-columns:1fr 1fr;gap:3px;padding:4px;flex:none;
}
.logo-mark i{display:block;background:#fff;border-radius:1px}
.logo-mark i:nth-child(2){background:var(--accent)}
.logo-mark i:nth-child(3){opacity:.35}
.logo-mark i:nth-child(4){background:#fff}
.brand-text{font-size:1.22rem;font-weight:800;letter-spacing:-.03em;line-height:1.15}
.brand-tag{display:block;font-size:.66rem;font-weight:500;letter-spacing:.14em;color:var(--muted);margin-top:1px}
.top-search{
  flex:1;max-width:560px;display:none;align-items:center;gap:8px;
  background:var(--surface-2);border:1px solid #E8E8E3;border-radius:var(--radius-pill);
  padding:7px 18px;color:var(--muted);
}
.top-search.is-open{display:flex}
.top-search input{border:0;background:transparent;width:100%;min-width:0;outline:none;font-size:.9rem;color:#111}
.top-search input::placeholder{color:#8A8A86}
.brand-action{display:flex;align-items:center;gap:10px;flex:none}
.hot-links{display:flex;align-items:center;gap:2px}
.hot-label{font-size:.72rem;font-weight:700;color:var(--muted);margin-right:4px;background:var(--surface-2);padding:3px 8px;border-radius:999px}
.hot-links a{font-size:.78rem;text-decoration:none;color:#555;font-weight:600;padding:4px 6px;border-radius:4px;background:transparent}
.hot-links a:hover{background:var(--accent);color:#000}
.search-icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:#fff;display:inline-grid;place-items:center;color:#222;text-decoration:none;
}
.search-icon-btn:hover{background:var(--accent);color:#000;border-color:#111;transform:none}
.header-cta-btn{
  font-size:.82rem;font-weight:700;text-decoration:none;background:#111;color:#fff;
  border-radius:var(--radius-pill);padding:.5em 1.05em;white-space:nowrap;
  display:inline-flex;align-items:center;gap:.4em;line-height:1.4;
}
.header-cta-btn:hover{background:var(--accent);color:#000}
.navbar-toggler{
  border:1px solid var(--line);border-radius:8px;width:42px;height:40px;
  display:grid;place-items:center;background:#fff;color:#111;flex:none;
}
.navbar-toggler:hover{background:var(--accent);border-color:#111}
.navbar-toggler .bar{display:block;width:18px;height:2px;background:#111;margin:3px auto}

/* ============ 频道栏 ============ */
.channel-wrap{
  background:var(--surface);border-bottom:1px solid var(--line);
  position:relative;z-index:1;
}
.channel-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;gap:20px;
}
.channel-scroll{display:flex;align-items:center;gap:28px;overflow-x:auto;scrollbar-width:none}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;color:var(--ink);font-weight:700;
  font-size:.92rem;text-decoration:none;padding:14px 0 12px;margin-bottom:-1px;
  border-bottom:2px solid transparent;white-space:nowrap;position:relative;background:transparent !important;
}
.channel-link:hover{background:transparent !important;color:#000}
.channel-link.active{
  color:#000;border-bottom-color:#111;
}
.channel-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:#111}
.channel-meta{display:flex;align-items:center;gap:12px;flex:none;padding-left:12px;border-left:1px solid var(--line)}
.channel-meta .hot-links a{font-size:.74rem}
@media (max-width: 991.98px){
  .brand{min-width:0}
  .brand-tag{display:none}
}

/* ============ 移动端折叠导航 ============ */
.mobile-nav{
  border-top:1px solid var(--line-2);
  background:var(--surface);
}
.mobile-nav .container{padding-top:14px;padding-bottom:18px}
.mobile-search{display:flex;gap:10px;margin-bottom:12px}
.form-pill{
  display:flex;background:#fff;border:1px solid #D7D7D1;border-radius:var(--radius-pill);
  overflow:hidden;align-items:center;width:100%;
}
.form-pill:focus-within{border-color:#111;box-shadow:0 0 0 4px rgba(232,255,0,.55)}
.form-pill input{flex:1;min-width:0;border:0;outline:0;padding:.6em 1em;background:transparent;font-size:.9rem}
.form-pill button{
  border:0;background:#111;color:#fff;padding:.5em 1.1em;border-radius:var(--radius-pill);
  font-weight:700;white-space:nowrap;margin:3px;font-size:.82rem;cursor:pointer;
}
.form-pill button:hover{background:var(--accent);color:#000}
.mobile-navlinks{display:flex;flex-direction:column;row-gap:4px;margin:8px 0 16px}
.mobile-navlinks a{
  text-decoration:none;font-weight:700;color:#222;padding:12px 10px;border-radius:10px;font-size:.98rem;
}
.mobile-navlinks a:hover{background:var(--surface-2);color:#000}
.mobile-navlinks a.active{background:#111;color:#fff}
.mobile-hot{display:flex;flex-wrap:wrap;gap:8px}
.mobile-hot a{
  font-size:.82rem;text-decoration:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:.3em .9em;color:#444;
}
.mobile-hot a:hover{background:var(--accent);color:#000}

/* ============ 页面副导航 / 面包屑 ============ */
.page-subnav{
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:12px 0;
}
.page-subnav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.breadcrumb-nav{display:flex;align-items:center;font-size:.83rem;color:var(--muted)}
.breadcrumb-nav ol{list-style:none;display:flex;align-items:center;gap:8px;margin:0;padding:0}
.breadcrumb-nav a{color:var(--muted);text-decoration:none;font-weight:600}
.breadcrumb-nav a:hover{color:#000}
.subnav-icon{
  display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:700;
  color:var(--ink);text-decoration:none;background:var(--surface-2);
  padding:6px 14px;border-radius:999px;
}
.subnav-icon:hover{background:var(--accent);color:#000;text-decoration:none}

/* ============ 分类 Hero ============ */
.cat-hero{padding:54px 0 48px;border-bottom:1px solid var(--line);background:var(--bg)}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.85fr);gap:44px;align-items:center}
.cat-hero-main h1{font-size:clamp(2rem,4.6vw,3.15rem);letter-spacing:-.04em;line-height:1.25;margin-bottom:18px;font-weight:800}
.cat-hero-lead{font-size:1.06rem;line-height:1.9;color:var(--ink-2);margin-bottom:22px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.hero-stat-row{display:flex;flex-wrap:wrap;gap:18px 28px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.hero-stat{display:flex;align-items:baseline;gap:10px}
.hero-stat b{font-size:1.4rem;font-weight:800;line-height:1}
.hero-stat span{font-size:.82rem;color:var(--muted)}
.cat-hero-board{
  position:relative;border-radius:var(--radius-card);overflow:hidden;border:4px solid #111;
  box-shadow:6px 6px 0 #111;background:#fff;margin:0;
}
.cat-hero-board img{width:100%;height:288px;object-fit:cover;object-position:center}
.cat-hero-board figcaption{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:#fff;padding:10px 16px;font-size:.8rem;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.board-dot{display:inline-flex;gap:5px;align-items:center}
.board-dot i{width:8px;height:8px;border-radius:50%;background:var(--line)}
.board-dot i:nth-child(1){background:var(--accent)}
.board-dot i:nth-child(2){background:#111}

/* ============ 编辑筛选条 ============ */
.filter-strip{
  display:flex;align-items:center;gap:18px;background:#fff;
  border:1px solid var(--line);border-top:0;border-radius:0 0 var(--radius-card) var(--radius-card);
  padding:14px 18px;margin-top:0;overflow-x:auto;scrollbar-width:none;
}
.filter-strip::-webkit-scrollbar{display:none}
.filter-name{font-weight:800;font-size:.84rem;color:var(--ink);white-space:nowrap}
.filter-name span{display:block;font-size:.68rem;color:var(--muted);font-weight:500}
.filter-options{display:flex;gap:8px;flex-wrap:nowrap}
.filter-chip{
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  border-radius:999px;padding:.38em 1em;font-size:.83rem;font-weight:700;white-space:nowrap;
  cursor:pointer;transition:all .15s;
}
.filter-chip:hover{border-color:#111;background:var(--surface-2);color:#000}
.filter-chip.is-active{background:#111;border-color:#111;color:#fff}
.filter-chip.is-active:hover{background:var(--accent);border-color:#111;color:#000}

/* ============ 编辑部每日站 ============ */
.pick-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1)}
.pick-card{display:grid;grid-template-columns:minmax(280px,.9fr) 1.1fr;min-height:340px}
.pick-media{position:relative;min-height:280px}
.pick-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.pick-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(0,0,0,.28))}
.pick-badge{
  position:absolute;left:16px;top:16px;z-index:2;
  background:#111;color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.1em;
  padding:5px 12px;border-radius:999px;
}
.pick-copy{padding:34px 38px;display:flex;flex-direction:column;justify-content:center}
.pick-date{font-family:var(--mono);font-size:.75rem;color:var(--muted);margin-bottom:10px;letter-spacing:.05em}
.pick-copy h2{font-size:clamp(1.4rem,2.5vw,2rem);margin-bottom:14px}
.pick-copy p{color:var(--ink-2);line-height:1.9;font-size:.96rem}
.pick-tags{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}
@media (max-width: 991.98px){
  .pick-card{grid-template-columns:1fr}
  .pick-media{min-height:230px}
  .pick-copy{padding:26px 24px}
}

/* ============ 分类卡片 ============ */
.res-section{padding:0 0 72px}
.res-section:first-of-type{padding-top:46px}
.group-head{display:flex;align-items:flex-start;gap:16px;margin:0 0 12px}
.group-no{font-family:var(--mono);font-size:2.1rem;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.4px #111;opacity:.9}
.group-title h2{font-size:clamp(1.35rem,2.4vw,1.9rem);margin-bottom:2px}
.group-title p{color:var(--muted);font-size:.88rem;margin:0}
.res-list{list-style:none;margin:20px 0 0}
.res-row{margin-bottom:16px}
.res-card{
  display:flex;align-items:stretch;gap:18px;height:100%;min-height:176px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px;box-shadow:var(--shadow-1);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.res-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#111}
.res-cover{
  position:relative;flex:none;width:172px;border-radius:8px;overflow:hidden;background:var(--surface-2);
}
.res-cover img{width:100%;height:100%;object-fit:cover;min-height:148px}
.ghost-rank{
  position:absolute;top:6px;right:8px;font-family:var(--mono);font-weight:800;
  color:rgba(255,255,255,.92);font-size:.92rem;line-height:1;background:rgba(0,0,0,.35);
  border-radius:5px;padding:4px 7px;letter-spacing:.02em;backdrop-filter:blur(3px);
}
.res-info{
  display:flex;flex-direction:column;justify-content:center;min-width:0;
}
.res-title-line{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:7px}
.res-title-line h3{font-size:1.12rem;margin:0;font-weight:800;letter-spacing:-.01em}
.res-desc{font-size:.88rem;color:var(--ink-2);line-height:1.75;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.res-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:8px}
.res-url{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-family:var(--mono);font-size:.78rem;color:var(--muted);
  background:var(--surface-2);border-radius:6px;padding:4px 8px 4px 12px;margin-top:auto;
}
.res-url .url-dot{width:6px;height:6px;border-radius:50%;background:var(--success);flex:none;margin-right:4px}
.res-url .copy-btn{
  border:1px solid var(--line);background:#fff;color:#111;font-size:.74rem;font-weight:700;
  border-radius:999px;padding:2px 11px;cursor:pointer;line-height:1.7;font-family:var(--font);
  transition:all .15s;
}
.res-url .copy-btn:hover{background:var(--accent);border-color:#111}
.res-url .copy-btn.done{background:var(--success);border-color:#111}
@media (max-width: 575.98px){
  .res-card{flex-direction:column;min-height:0}
  .res-cover{width:100%;height:190px}
  .res-cover img{height:100%;width:100%}
}
@media (min-width: 576px) and (max-width: 767.98px){
  .res-card{flex-direction:row}
  .res-cover{width:150px;height:130px}
  .res-cover img{width:100%;height:100%}
}
@media (min-width: 992px) and (max-width: 1199.98px){
  .res-card{flex-direction:row}
  .res-cover{width:160px;height:150px}
  .res-cover img{width:100%;height:100%}
}

/* ============ 快速加码列表 ============ */
.quick-section{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.quick-intro{max-width:860px;margin-bottom:28px}
.quick-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.quick-item{
  display:flex;align-items:center;gap:18px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);padding:11px 16px;
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.quick-item:hover{box-shadow:var(--shadow-1);border-color:#111}
.quick-no{
  font-family:var(--mono);font-size:1.25rem;font-weight:800;flex:none;
  color:transparent;-webkit-text-stroke:1.2px #111;width:42px;text-align:center;
}
.quick-main{flex:1;min-width:0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.quick-main h3{font-size:.98rem;font-weight:800;margin-bottom:2px}
.quick-main p{font-size:.82rem;color:var(--ink-2);margin:0}
.quick-cat{
  flex:none;font-size:.75rem;font-weight:800;text-decoration:none;color:#111;
  background:var(--accent);padding:4px 12px;border-radius:999px;white-space:nowrap;
}
.quick-cat:hover{background:#111;color:#fff}
@media (max-width: 767.98px){
  .quick-main{flex-direction:column;align-items:flex-start;gap:6px}
  .quick-item{gap:12px}
}

/* ============ 延伸阅读 ============ */
.readnext-section{padding:72px 0 56px}
.read-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;position:relative;overflow:hidden;transition:box-shadow .2s,transform .2s;
}
.read-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.read-card .read-lable{
  font-family:var(--mono);font-size:.72rem;font-weight:700;letter-spacing:.12em;
  color:var(--muted);margin-bottom:14px;display:block;
}
.read-card h3{font-size:1.06rem;margin-bottom:8px}
.read-card p{font-size:.88rem;color:var(--ink-2);line-height:1.8;margin-bottom:14px}
.read-link{font-size:.84rem;font-weight:800;text-decoration:none;color:#111}
.read-link:hover{background:var(--accent);color:#000}
.read-arrow{font-family:var(--mono)}

/* ============ 分页 ============ */
.page-pager{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 20px;margin-bottom:56px;
}
.pager-prev,.pager-next{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:.88rem;
  text-decoration:none;padding:8px 16px;border-radius:999px;border:1px solid var(--line);color:var(--ink);
}
.pager-prev:hover,.pager-next:hover{background:#111;color:#fff;text-decoration:none}
.pager-prev.is-disabled{background:var(--surface-2);color:var(--muted);pointer-events:none}
.pager-pages{display:flex;align-items:center;gap:6px}
.pg-item{
  display:inline-grid;place-items:center;width:36px;height:36px;border-radius:8px;
  border:1px solid var(--line);font-family:var(--mono);font-size:.85rem;font-weight:800;
  text-decoration:none;color:#111;
}
.pg-item:hover{background:var(--accent);border-color:#111}
.pg-item.current{background:#111;color:#fff;border-color:#111}
@media (max-width: 575.98px){
  .page-pager{flex-direction:column;align-items:stretch;text-align:center}
  .pager-pages{justify-content:center}
}

/* ============ FAQ ============ */
.faq-section{padding:64px 0 36px;background:var(--bg)}
.faq-inner{max-width:880px}
.faq-more{margin-top:18px;font-size:.87rem}
.faq-list{margin-top:26px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-toggle{
  display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;
  background:transparent;border:0;padding:19px 4px;font-size:1rem;font-weight:800;
  color:var(--ink);cursor:pointer;transition:background .15s;border-radius:4px;
}
.faq-toggle:hover{background:var(--surface-2)}
.faq-toggle[aria-expanded="true"] .faq-icon::after{transform:rotate(45deg)}
.faq-icon{
  position:relative;width:16px;height:16px;flex:none;margin-left:16px;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:#111;left:50%;top:50%;transform:translate(-50%,-50%)}
.faq-icon::before{width:16px;height:2px}
.faq-icon::after{width:2px;height:16px;transition:transform .2s}
.faq-body{padding:0 22px 18px;color:var(--ink-2);font-size:.94rem;line-height:1.9}

/* ============ 尾部 CTA ============ */
.cta-band{
  background:#111;color:#fff;position:relative;overflow:hidden;
  padding:86px 0;margin-top:24px;
}
.cta-band::before{
  content:"";position:absolute;top:-60px;right:-40px;width:380px;height:380px;
  background-image:radial-gradient(#333 1px,transparent 1px);background-size:16px 16px;opacity:.34;
}
.cta-band::after{
  content:"";position:absolute;bottom:-80px;left:8%;width:280px;height:250px;
  background-image:radial-gradient(#333 1px,transparent 1px);background-size:16px 16px;opacity:.3;
}
.cta-inner{max-width:840px;position:relative;z-index:1;margin:0 auto;text-align:center}
.cta-inner .eyebrow{background:var(--accent);color:#000}
.cta-inner h2{font-size:clamp(1.8rem,3.6vw,2.8rem);color:#fff;letter-spacing:-.03em;margin-bottom:16px}
.cta-inner p{font-size:1rem;color:#c9c9c9;line-height:1.9;margin-bottom:28px}
.cta-form{display:flex;gap:10px;max-width:600px;margin:0 auto 16px}
.cta-input{
  flex:1;min-width:0;border:1px solid #3c3c3c;background:#1d1d1c;color:#fff;
  border-radius:999px;padding:.8em 1.4em;font-size:.9rem;outline:none;
}
.cta-input::placeholder{color:#777}
.cta-input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(232,255,0,.22);background:#232322}
.cta-status{margin-top:8px;font-size:.84rem;color:var(--success);min-height:1.4em}
.cta-secondary{margin-top:10px;font-size:.84rem;color:#aaa}
.cta-secondary a{color:#fff;font-weight:700}
@media (max-width: 575.98px){
  .cta-form{flex-direction:column}
}

/* ============ 页脚 ============ */
.site-footer{
  background:#0f0f0f;color:#aaa;border-top:1px solid var(--accent);
  padding:54px 0 0;
}
.footer-main{
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:48px;
  padding-bottom:36px;border-bottom:1px solid #2b2b2a;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:1.2rem;font-weight:800;
  letter-spacing:-.02em;margin-bottom:14px;
}
.footer-brand .logo-mark{background:#fff}
.footer-brand .logo-mark i{background:#111}
.footer-brand .logo-mark i:nth-child(2){background:var(--accent)}
.footer-brand .logo-mark i:nth-child(3){opacity:.35}
.footer-brand .logo-mark i:nth-child(4){background:#111}
.footer-about p{font-size:.88rem;line-height:1.9;color:#959595;max-width:440px}
.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.footer-links h3{color:#fff;font-size:.94rem;margin-bottom:12px;font-weight:800}
.footer-links a{
  display:block;color:#a0a0a0;text-decoration:none;font-size:.85rem;
  padding:4px 0;margin-bottom:2px;background:transparent !important;
}
.footer-links a:hover{color:#fff}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0;font-size:.8rem;color:#6a6a6a;
}
.footer-bottom a{color:#aaa;text-decoration:none;background:transparent !important}
.footer-bottom a:hover{color:var(--accent)}
@media (max-width: 767.98px){
  .footer-main{grid-template-columns:1fr;gap:30px}
  .footer-links{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ============ 通用响应式 ============ */
@media (max-width: 767.98px){
  .cat-hero-grid{grid-template-columns:1fr;gap:30px}
  .cat-hero{padding:38px 0 36px}
  .cat-hero-board img{height:220px}
  .section-tight{padding:28px 0 44px}
  .filter-strip{margin-top:10px;border-top:1px solid var(--line);border-radius:var(--radius-card)}
}
@media (min-width: 768px) and (max-width: 1199.98px){
  .filter-strip{margin-top:10px}
}
@media (max-width: 400px){
  .brand-text{font-size:1.08rem}
  .brand-tag{display:none}
}

/* ============ 自定义动画与低动效尊重 ============ */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}