/* roulang page: index */
:root{--ink:#211322;--plum:#32152e;--berry:#592044;--coral:#f0785d;--coral-dark:#cc554c;--sand:#f4dfc4;--cream:#fff8ed;--muted:#bda9b5;--line:rgba(255,232,211,.15);--teal:#86c7ad;--shadow:0 24px 70px rgba(12,5,17,.28);--r:22px;--max:1180px}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--ink);color:var(--cream);line-height:1.7}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0} .container{width:min(var(--max),calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:rgba(33,19,34,.84);backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:.3s}.site-header.scrolled{background:#251426;border-color:var(--line);box-shadow:0 10px 35px #11091280}.topline{display:flex;justify-content:space-between;align-items:center;min-height:62px;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.04em;font-size:1.15rem}.brand i{display:inline-block;width:9px;height:9px;background:var(--coral);border-radius:50%;margin:0 8px 2px 0;box-shadow:0 0 18px var(--coral)}.status{font-size:.78rem;color:var(--muted);display:flex;gap:18px;align-items:center}.status b{color:var(--teal);font-weight:600}.navline{display:flex;align-items:center;gap:24px;min-height:58px}.navlinks{display:flex;gap:8px;align-items:center;flex:1}.navlinks a,.trend{padding:7px 13px;color:var(--muted);font-size:.9rem;border-radius:999px;transition:.25s}.navlinks a:hover,.navlinks a.active{color:var(--cream);background:rgba(240,120,93,.14)}.navlinks a.active{box-shadow:inset 0 -2px var(--coral)}.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:99px;padding:4px 6px 4px 14px;background:#1b101d}.search input{width:112px;background:none;border:0;outline:0;color:var(--cream);font-size:.85rem}.search button{width:30px;height:30px;border-radius:50%;background:var(--coral);color:white}.menu{display:none;background:none;color:var(--cream);font-size:1.4rem}
.hero{position:relative;overflow:hidden;padding:100px 0 70px;background:radial-gradient(circle at 78% 28%,#a5484c66,transparent 28%),radial-gradient(circle at 12% 100%,#6e285266,transparent 35%),var(--plum)}.hero:before{content:"✦  ◇  ⋄  ✧  ◇  ✦";position:absolute;inset:20px 4%;color:#f4dfc41a;font-size:5rem;letter-spacing:1.7rem;transform:rotate(-8deg);pointer-events:none}.hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:70px;align-items:center}.eyebrow{display:inline-flex;gap:9px;align-items:center;color:var(--coral);font-size:.82rem;font-weight:700;letter-spacing:.13em;margin-bottom:20px}.eyebrow:before{content:"";width:28px;height:1px;background:var(--coral)}h1{font-size:clamp(2.7rem,6vw,5.7rem);line-height:1.08;letter-spacing:-.07em;max-width:650px}.hero-copy{font-size:1.08rem;color:#e5d2d1;max-width:590px;margin:27px 0 30px}.actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 21px;border-radius:12px;font-weight:700;transition:.25s}.btn.primary{background:var(--coral);color:#28121f;box-shadow:0 10px 25px #f0785d33}.btn.primary:hover{background:var(--coral-dark);color:white;transform:translateY(-2px)}.btn.ghost{border:1px solid var(--line);color:var(--sand)}.btn.ghost:hover{border-color:var(--sand);background:#ffffff0d}.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #86c7ad;outline-offset:3px}.hero-meta{display:flex;gap:25px;margin-top:34px;color:var(--muted);font-size:.84rem}.hero-meta strong{display:block;color:var(--sand);font-size:1.35rem}.terminal{background:#1d101e;border:1px solid #f4dfc42b;border-radius:var(--r);box-shadow:var(--shadow);padding:27px;transform:rotate(1.5deg)}.terminal-head{display:flex;justify-content:space-between;color:var(--muted);font-size:.78rem;margin-bottom:24px}.live{color:var(--teal)}.dial{display:flex;align-items:center;gap:24px;padding-bottom:25px;border-bottom:1px solid var(--line)}.circle{width:112px;height:112px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--coral) 0 78%,#4c293e 78%);position:relative}.circle:after{content:"";position:absolute;inset:10px;border-radius:50%;background:#241323}.circle span{position:relative;z-index:1;font-size:1.7rem;font-weight:800}.dial h3{font-size:1.25rem}.dial p{color:var(--muted);font-size:.84rem}.meter{margin-top:20px}.meter-row{display:flex;justify-content:space-between;font-size:.82rem;margin:13px 0 6px;color:var(--muted)}.meter-row b{color:var(--sand)}.bar{height:7px;border-radius:10px;background:#4b293e;overflow:hidden}.bar i{display:block;height:100%;background:var(--coral);border-radius:inherit}.bar.teal i{background:var(--teal)}.ticker{background:#281425;border-bottom:1px solid var(--line);padding:13px 0;color:var(--muted);font-size:.86rem}.ticker span{color:var(--coral);margin-right:14px}.section{padding:88px 0}.section.alt{background:#2a1729}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}.section-head h2{font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.2;letter-spacing:-.04em}.section-head p{max-width:530px;color:var(--muted)}.metrics{display:grid;grid-template-columns:1.25fr .9fr 1fr .9fr;gap:14px}.metric{padding:24px;background:#2b172b;border:1px solid var(--line);border-radius:17px;min-height:140px}.metric:first-child{background:var(--coral);color:#291321}.metric small{display:block;opacity:.72}.metric strong{font-size:2.6rem;line-height:1.2;display:block;margin:9px 0}.metric p{font-size:.82rem;color:var(--muted)}.metric:first-child p{color:#522638}.matrix{display:grid;grid-template-columns:1.5fr .9fr .9fr;grid-template-rows:1fr 1fr;gap:14px}.tile{padding:27px;background:#211322;border:1px solid var(--line);border-radius:var(--r);transition:.25s;position:relative;overflow:hidden}.tile:hover{border-color:var(--coral);transform:translateY(-3px);box-shadow:0 12px 35px #12091466}.tile.main{grid-row:span 2;background:linear-gradient(145deg,#5a2044,#32152e)}.tile .mark{color:var(--coral);font-size:1.5rem;margin-bottom:25px}.tile h3{font-size:1.35rem;margin-bottom:9px}.tile p{color:var(--muted);font-size:.9rem}.tile a{display:inline-block;color:var(--sand);margin-top:24px;font-weight:700;font-size:.9rem}.tag{display:inline-block;padding:4px 10px;border:1px solid var(--line);border-radius:99px;color:var(--muted);font-size:.76rem;margin:5px 4px 0 0}.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.compare-box{padding:30px;border-radius:var(--r);border:1px solid var(--line);background:#2b172b}.compare-box.highlight{border-color:#f0785d80;background:linear-gradient(120deg,#54203f,#30172d)}.compare-title{display:flex;justify-content:space-between;color:var(--muted);margin-bottom:25px}.compare-title b{color:var(--coral)}.compare-box.highlight .compare-title b{color:var(--teal)}.compare-box strong{font-size:2.8rem;display:block;color:var(--sand)}.compare-box p{color:var(--muted);font-size:.88rem}.bars{margin-top:20px}.faq{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-q{display:flex;justify-content:space-between;gap:20px;padding:21px 4px;font-weight:700;cursor:pointer}.faq-q span{color:var(--coral);font-size:1.3rem;transition:.25s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);transition:max-height .35s,padding .35s}.faq-item.open .faq-a{max-height:130px;padding:0 35px 20px 4px}.faq-item.open .faq-q span{transform:rotate(45deg)}.cta{background:radial-gradient(circle at 80% 20%,#f0785d55,transparent 25%),#57203f;padding:65px 0}.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:center}.cta h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.15}.cta p{color:#e7cfd1;margin:18px 0}.benefits{display:flex;gap:9px;flex-wrap:wrap}.benefits span{border:1px solid #f4dfc440;padding:5px 11px;border-radius:99px;font-size:.8rem;color:var(--sand)}form{display:grid;gap:12px;background:#251426cc;padding:25px;border:1px solid var(--line);border-radius:var(--r)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}input,select,textarea{width:100%;background:#1c101d;border:1px solid var(--line);border-radius:10px;padding:12px 13px;color:var(--cream);outline:0}textarea{min-height:90px;resize:vertical}label{font-size:.8rem;color:var(--muted);display:grid;gap:6px}.form-note{font-size:.75rem;color:var(--muted)}.site-footer{padding:48px 0 25px;background:#170d19}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:40px;border-bottom:1px solid var(--line)}.footer-grid h4{color:var(--sand);margin-bottom:14px}.footer-grid p,.footer-grid a{display:block;color:var(--muted);font-size:.86rem;margin:7px 0}.footer-grid a:hover{color:var(--coral)}.copyright{display:flex;justify-content:space-between;color:#806c7b;font-size:.76rem;padding-top:20px}.top{position:fixed;right:22px;bottom:22px;width:42px;height:42px;border-radius:50%;background:var(--coral);color:#28121f;display:none;font-weight:bold}.top.show{display:block}
@media(max-width:900px){.hero-grid,.cta-grid{grid-template-columns:1fr;gap:40px}.metrics{grid-template-columns:1fr 1fr}.matrix{grid-template-columns:1fr 1fr}.tile.main{grid-row:auto;grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.container{width:min(100% - 28px,var(--max))}.topline{min-height:55px}.status{display:none}.navline{position:relative}.menu{display:block;margin-left:auto}.navlinks{display:none;position:absolute;top:58px;left:0;right:0;padding:12px;background:#251426;border:1px solid var(--line);border-radius:0 0 15px 15px;flex-direction:column;align-items:stretch}.navlinks.open{display:flex}.navlinks a{text-align:center}.search{margin-left:auto}.search input{width:80px}.hero{padding:70px 0 50px}h1{font-size:3rem}.hero-copy{font-size:.96rem}.hero-meta{gap:15px}.terminal{transform:none;padding:20px}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:13px}.metrics,.matrix,.compare{grid-template-columns:1fr}.tile.main{grid-column:auto}.form-row{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:span 2}.copyright{display:block}.copyright span{display:block;margin-top:6px}}

/* roulang page: category1 */
:root{
  --ink:#211322;
  --plum:#32152e;
  --berry:#592044;
  --coral:#f0785d;
  --coral-dark:#cc554c;
  --sand:#f4dfc4;
  --cream:#fff8ed;
  --muted:#bda9b5;
  --line:rgba(255,232,211,.15);
  --teal:#86c7ad;
  --panel:#291629;
  --deep:#170d19;
  --shadow:0 24px 70px rgba(12,5,17,.28);
  --r:22px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--ink);
  color:var(--cream);
  line-height:1.7;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(33,19,34,.86);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:.3s ease;
}
.site-header.scrolled{
  background:#251426;
  border-color:var(--line);
  box-shadow:0 10px 35px rgba(17,9,18,.5);
}
.topline{
  min-height:45px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:inline-flex;
  align-items:center;
  font-size:1.15rem;
  font-weight:800;
  letter-spacing:.04em;
  white-space:nowrap;
}
.brand i{
  display:inline-block;
  width:9px;height:9px;
  margin:0 8px 2px 0;
  border-radius:50%;
  background:var(--coral);
  box-shadow:0 0 18px var(--coral);
}
.status{
  display:flex;
  align-items:center;
  gap:20px;
  color:var(--muted);
  font-size:.76rem;
}
.status b{color:var(--teal);font-weight:600}
.navline{
  min-height:58px;
  display:flex;
  align-items:center;
  gap:24px;
}
.navlinks{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
}
.navlinks a,.trend{
  padding:7px 13px;
  border-radius:999px;
  color:var(--muted);
  font-size:.9rem;
  transition:.25s ease;
}
.navlinks a:hover,.navlinks a.active{
  color:var(--cream);
  background:rgba(240,120,93,.14);
}
.navlinks a.active{box-shadow:inset 0 -2px var(--coral)}
.search{
  display:flex;
  align-items:center;
  padding:4px 6px 4px 14px;
  background:#1b101d;
  border:1px solid var(--line);
  border-radius:99px;
}
.search input{
  width:112px;
  padding:0;
  background:none;
  border:0;
  outline:0;
  color:var(--cream);
  font-size:.85rem;
}
.search input::placeholder{color:#876f7e}
.search button{
  width:30px;height:30px;
  border-radius:50%;
  background:var(--coral);
  color:#28121f;
  font-size:1.15rem;
  transition:.2s;
}
.search button:hover{background:var(--sand)}
.menu{
  display:none;
  margin-left:auto;
  padding:4px;
  background:none;
  color:var(--cream);
  font-size:1.4rem;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:45px;
  padding:11px 21px;
  border-radius:12px;
  font-weight:700;
  transition:.25s ease;
}
.btn.primary{
  background:var(--coral);
  color:#28121f;
  box-shadow:0 10px 25px rgba(240,120,93,.2);
}
.btn.primary:hover{background:var(--coral-dark);color:#fff;transform:translateY(-2px)}
.btn.ghost{border:1px solid var(--line);color:var(--sand)}
.btn.ghost:hover{border-color:var(--sand);background:rgba(255,255,255,.06)}
.btn:focus-visible,
input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid var(--teal);
  outline-offset:3px;
}
.hero{
  position:relative;
  overflow:hidden;
  padding:82px 0 72px;
  background:
    radial-gradient(circle at 79% 22%,rgba(165,72,76,.4),transparent 28%),
    radial-gradient(circle at 12% 100%,rgba(110,40,82,.4),transparent 36%),
    var(--plum);
}
.hero:before{
  content:"✦ ◇ ⋄ ✧ ◇ ✦";
  position:absolute;
  inset:18px 4%;
  color:rgba(244,223,196,.1);
  font-size:5rem;
  letter-spacing:1.7rem;
  transform:rotate(-8deg);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) 410px;
  gap:72px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-bottom:17px;
  color:var(--coral);
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.13em;
}
.eyebrow:before{content:"";width:28px;height:1px;background:var(--coral)}
h1,h2,h3,p{margin-top:0}
h1{
  max-width:700px;
  margin-bottom:22px;
  font-size:clamp(2.4rem,5.3vw,5.1rem);
  line-height:1.1;
  letter-spacing:-.065em;
}
.hero-copy{
  max-width:650px;
  margin-bottom:29px;
  color:#e5d2d1;
  font-size:1.06rem;
}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:30px;
  margin-top:33px;
  color:var(--muted);
  font-size:.83rem;
}
.hero-meta strong{
  display:block;
  color:var(--sand);
  font-size:1.4rem;
  line-height:1.25;
}
.cover{
  position:relative;
  min-height:430px;
  padding:27px;
  background:linear-gradient(145deg,#f4dfc4,#c98771);
  color:var(--ink);
  border-radius:18px;
  box-shadow:var(--shadow);
  transform:rotate(2deg);
}
.cover:after{
  content:"";
  position:absolute;
  inset:12px;
  border:1px solid rgba(33,19,34,.25);
  border-radius:11px;
  pointer-events:none;
}
.cover-kicker{
  position:relative;
  z-index:1;
  display:flex;
  justify-content:space-between;
  color:#633347;
  font-size:.72rem;
  letter-spacing:.14em;
}
.cover h2{
  position:relative;
  z-index:1;
  margin:70px 0 15px;
  font-size:2.35rem;
  line-height:1.15;
  letter-spacing:-.05em;
}
.cover p{
  position:relative;
  z-index:1;
  max-width:270px;
  color:#633b48;
  font-size:.9rem;
}
.cover-rule{
  position:absolute;
  right:28px;bottom:28px;left:28px;
  height:5px;
  background:var(--coral-dark);
  border-radius:5px;
}
.cover-note{
  position:absolute;
  right:27px;bottom:47px;
  color:#633347;
  font-size:.72rem;
}
.section{padding:86px 0}
.section.alt{background:#2a1729}
.section-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:25px;
  margin-bottom:34px;
}
.section-head h2{
  margin-bottom:0;
  font-size:clamp(1.8rem,3vw,2.8rem);
  line-height:1.2;
  letter-spacing:-.04em;
}
.section-head p{max-width:530px;margin-bottom:0;color:var(--muted)}
.guide-layout{
  display:grid;
  grid-template-columns:1.18fr .82fr;
  gap:22px;
}
.guide-panel,.index-panel,.note-card,.compare-box{
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--panel);
}
.guide-panel{padding:30px}
.guide-panel h3{margin-bottom:8px;font-size:1.35rem;color:var(--sand)}
.guide-panel>p{margin-bottom:25px;color:var(--muted)}
.topic-list{display:grid;gap:11px}
.topic-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:17px 18px;
  border:1px solid rgba(255,232,211,.1);
  border-radius:14px;
  background:rgba(255,255,255,.025);
  transition:.25s ease;
}
.topic-item:hover{
  border-color:var(--coral);
  background:rgba(240,120,93,.08);
  transform:translateX(4px);
}
.topic-item strong{display:block;color:var(--cream)}
.topic-item small{display:block;color:var(--muted);font-size:.78rem}
.topic-item b{color:var(--coral);font-size:.85rem;white-space:nowrap}
.index-panel{padding:27px;background:#211322}
.index-panel h3{margin-bottom:20px;color:var(--sand)}
.index-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  padding:15px 0;
  border-bottom:1px solid var(--line);
  color:var(--muted);
  font-size:.88rem;
}
.index-row:last-child{border-bottom:0}
.index-row b{color:var(--cream)}
.meter{height:6px;margin-top:8px;border-radius:10px;background:#43263d;overflow:hidden}
.meter span{display:block;height:100%;border-radius:inherit;background:var(--coral)}
.tag-cloud{margin-top:23px}
.tag{
  display:inline-block;
  margin:5px 4px 0 0;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:99px;
  color:var(--muted);
  font-size:.76rem;
}
.tag.hot{border-color:rgba(240,120,93,.45);color:var(--coral)}
.evidence{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.note-card{padding:25px;min-height:190px}
.note-card:nth-child(2){margin-top:28px;background:#32152e}
.note-card:nth-child(3){margin-top:56px;background:#211322}
.note-card .number{color:var(--coral);font-size:2rem;font-weight:800;line-height:1}
.note-card h3{margin:17px 0 8px;color:var(--sand);font-size:1.1rem}
.note-card p{margin:0;color:var(--muted);font-size:.9rem}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-box{padding:27px}
.compare-box.highlight{background:linear-gradient(145deg,#5a2044,#32152e)}
.compare-title{
  display:flex;
  justify-content:space-between;
  gap:15px;
  margin-bottom:24px;
  color:var(--muted);
}
.compare-title b{color:var(--coral)}
.compare-box.highlight .compare-title b{color:var(--teal)}
.compare-bar{margin:16px 0 22px}
.compare-bar>div{display:flex;justify-content:space-between;color:var(--cream);font-size:.86rem}
.bar-track{height:9px;margin-top:8px;background:#43263d;border-radius:20px;overflow:hidden}
.bar-track span{display:block;height:100%;background:var(--coral);border-radius:inherit}
.compare-box.highlight .bar-track span{background:var(--teal)}
.compare-box p{color:var(--muted);font-size:.86rem}
.faq{max-width:850px;margin:auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding:21px 4px;
  color:var(--cream);
  font-weight:700;
  cursor:pointer;
}
.faq-q span{color:var(--coral);font-size:1.3rem;transition:.25s}
.faq-a{max-height:0;overflow:hidden;color:var(--muted);transition:max-height .35s,padding .35s}
.faq-item.open .faq-a{max-height:150px;padding:0 35px 20px 4px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{
  padding:70px 0;
  background:radial-gradient(circle at 80% 20%,rgba(240,120,93,.33),transparent 25%),#57203f;
}
.cta-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:55px;
  align-items:center;
}
.cta h2{margin-bottom:14px;font-size:clamp(2rem,4vw,3.5rem);line-height:1.15}
.cta p{color:#e7cfd1}
.benefits{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}
.benefits .tag{color:var(--sand);border-color:rgba(244,223,196,.3)}
form{
  display:grid;
  gap:12px;
  padding:25px;
  background:rgba(37,20,38,.8);
  border:1px solid var(--line);
  border-radius:var(--r);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:grid;gap:6px;color:var(--sand);font-size:.82rem}
input,select,textarea{
  width:100%;
  padding:12px 13px;
  color:var(--cream);
  background:#1c101d;
  border:1px solid var(--line);
  border-radius:10px;
  outline:0;
}
select option{background:#1c101d}
textarea{min-height:92px;resize:vertical}
.form-note{margin:0;color:var(--muted);font-size:.75rem}
.form-message{display:none;padding:10px 12px;border-radius:9px;font-size:.82rem}
.form-message.success{display:block;background:rgba(134,199,173,.12);color:var(--teal)}
.form-message.error{display:block;background:rgba(240,120,93,.12);color:var(--coral)}
.site-footer{padding:48px 0 25px;background:var(--deep)}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:35px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-grid h4{margin:0 0 14px;color:var(--sand)}
.footer-grid p,.footer-grid a{
  display:block;
  margin:7px 0;
  color:var(--muted);
  font-size:.86rem;
}
.footer-grid a:hover{color:var(--coral)}
.copyright{
  display:flex;
  justify-content:space-between;
  gap:20px;
  padding-top:20px;
  color:#806c7b;
  font-size:.76rem;
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr 360px;gap:38px}
  .cta-grid{gap:30px}
}
@media (max-width:768px){
  .container{width:min(100% - 28px,var(--max))}
  .status{display:none}
  .menu{display:block}
  .navline{position:relative}
  .navlinks{
    display:none;
    position:absolute;
    top:58px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    padding:12px;
    background:#251426;
    border:1px solid var(--line);
    border-radius:0 0 15px 15px;
  }
  .navlinks.open{display:flex}
  .navlinks a{text-align:center}
  .search{margin-left:auto}
  .search input{width:80px}
  .hero{padding:66px 0 52px}
  .hero-grid,.guide-layout,.cta-grid{grid-template-columns:1fr}
  .cover{max-width:430px;min-height:350px;margin:0 auto;transform:rotate(1deg)}
  .section{padding:62px 0}
  .section-head{display:block}
  .section-head p{margin-top:13px}
  .evidence{grid-template-columns:1fr}
  .note-card,.note-card:nth-child(2),.note-card:nth-child(3){margin-top:0;min-height:auto}
  .compare-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  h1{font-size:2.65rem}
  .topline{min-height:42px}
  .brand{font-size:1rem}
  .search{padding-left:9px}
  .search input{width:62px}
  .hero-meta{gap:18px}
  .actions .btn{width:100%}
  .cover{padding:21px;min-height:315px}
  .cover h2{margin-top:52px;font-size:2rem}
  .guide-panel,.index-panel,.note-card,.compare-box,form{padding:21px}
  .form-row{grid-template-columns:1fr}
  .copyright{display:block}
  .copyright span{display:block;margin-top:6px}
}

/* roulang page: category2 */
:root{
  --ink:#211322;
  --plum:#32152e;
  --berry:#592044;
  --coral:#f0785d;
  --coral-dark:#cc554c;
  --sand:#f4dfc4;
  --cream:#fff8ed;
  --muted:#bda9b5;
  --line:rgba(255,232,211,.15);
  --teal:#86c7ad;
  --shadow:0 24px 70px rgba(12,5,17,.28);
  --shadow-soft:0 14px 38px rgba(12,5,17,.2);
  --r:22px;
  --r-sm:13px;
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  min-width:320px;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--ink);
  color:var(--cream);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0}
ul{list-style:none}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.skip-link{
  position:fixed;left:16px;top:-80px;z-index:100;
  padding:10px 16px;border-radius:10px;background:var(--coral);color:#27131f;font-weight:800;
}
.skip-link:focus{top:16px}
.site-header{
  position:sticky;top:0;z-index:30;
  background:rgba(33,19,34,.84);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.scrolled{
  background:#251426;
  border-color:var(--line);
  box-shadow:0 10px 35px rgba(17,9,18,.5);
}
.topline{
  min-height:42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  border-bottom:1px solid rgba(255,232,211,.08);
}
.brand{display:inline-flex;align-items:center;font-weight:800;letter-spacing:.04em;font-size:1.15rem}
.brand i{
  display:inline-block;width:9px;height:9px;background:var(--coral);border-radius:50%;
  margin:0 8px 2px 0;box-shadow:0 0 18px var(--coral);
}
.status{display:flex;align-items:center;gap:20px;color:var(--muted);font-size:.75rem}
.status b{color:var(--teal);font-weight:700}
.navline{display:flex;align-items:center;gap:24px;min-height:58px}
.navlinks{display:flex;gap:8px;align-items:center;flex:1}
.navlinks a,.trend{
  padding:7px 13px;color:var(--muted);font-size:.9rem;border-radius:999px;
  transition:color .25s,background .25s,box-shadow .25s;
}
.navlinks a:hover,.navlinks a.active{color:var(--cream);background:rgba(240,120,93,.14)}
.navlinks a.active{box-shadow:inset 0 -2px var(--coral)}
.search{
  display:flex;align-items:center;border:1px solid var(--line);border-radius:99px;
  padding:4px 6px 4px 14px;background:#1b101d;transition:border-color .25s,box-shadow .25s;
}
.search:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px rgba(134,199,173,.12)}
.search input{width:112px;background:none;border:0;outline:0;color:var(--cream);font-size:.85rem;padding:0}
.search input::placeholder{color:#897582}
.search button{
  width:30px;height:30px;border-radius:50%;background:var(--coral);color:#28121f;
  font-size:1.15rem;font-weight:800;transition:background .25s,transform .25s;
}
.search button:hover{background:var(--sand);transform:rotate(-8deg)}
.menu{display:none;background:none;color:var(--cream);font-size:1.4rem}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:12px 21px;border-radius:12px;font-weight:700;
  transition:background .25s,color .25s,border-color .25s,transform .25s,box-shadow .25s;
}
.btn.primary{background:var(--coral);color:#28121f;box-shadow:0 10px 25px rgba(240,120,93,.2)}
.btn.primary:hover{background:var(--coral-dark);color:white;transform:translateY(-2px)}
.btn.ghost{border:1px solid var(--line);color:var(--sand);background:transparent}
.btn.ghost:hover{border-color:var(--sand);background:rgba(255,255,255,.05);transform:translateY(-2px)}
.btn.small{min-height:40px;padding:8px 15px;font-size:.88rem}
.btn:active{transform:translateY(0)}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.faq-q:focus-visible{
  outline:3px solid var(--teal);outline-offset:3px;
}
.inner-hero{
  position:relative;overflow:hidden;padding:76px 0 68px;
  background:
    radial-gradient(circle at 76% 24%,rgba(240,120,93,.24),transparent 25%),
    radial-gradient(circle at 10% 100%,rgba(110,40,82,.55),transparent 34%),
    var(--plum);
}
.inner-hero:before{
  content:"✦  ◇  ⋄  ✧  ◇  ✦";
  position:absolute;right:-4%;top:5%;color:rgba(244,223,196,.07);
  font-size:5rem;letter-spacing:1.2rem;transform:rotate(-7deg);pointer-events:none;
}
.inner-hero:after{
  content:"";position:absolute;width:420px;height:420px;border:1px solid rgba(244,223,196,.08);
  border-radius:50%;right:4%;top:5%;box-shadow:inset 0 0 0 38px rgba(244,223,196,.018);
}
.breadcrumb{
  position:relative;z-index:2;display:flex;align-items:center;gap:9px;
  color:var(--muted);font-size:.8rem;margin-bottom:27px;
}
.breadcrumb a:hover{color:var(--coral)}
.hero-layout{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);
  gap:65px;align-items:center;
}
.eyebrow{
  display:inline-flex;gap:9px;align-items:center;color:var(--coral);
  font-size:.82rem;font-weight:700;letter-spacing:.13em;margin-bottom:18px;
}
.eyebrow:before{content:"";width:28px;height:1px;background:var(--coral)}
h1{
  max-width:690px;font-size:clamp(2.65rem,5.5vw,5.15rem);
  line-height:1.04;letter-spacing:-.06em;text-wrap:balance;
}
.hero-copy{font-size:1.04rem;color:#e5d2d1;max-width:650px;margin:25px 0 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-notes{display:flex;flex-wrap:wrap;gap:18px;margin-top:27px;color:var(--muted);font-size:.8rem}
.hero-notes span{display:flex;align-items:center;gap:7px}
.hero-notes span:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
.coupon-wall{position:relative;min-height:390px}
.coupon{
  position:absolute;border:1px solid var(--line);border-radius:20px;
  background:#271428;box-shadow:var(--shadow);overflow:hidden;
}
.coupon.side{
  width:57%;height:145px;padding:22px;color:var(--muted);
  background:linear-gradient(135deg,#3b1935,#241325);
}
.coupon.side strong{display:block;color:var(--sand);font-size:1.05rem;margin-bottom:9px}
.coupon.side.one{top:10px;right:2%;transform:rotate(4deg)}
.coupon.side.two{bottom:2px;left:1%;transform:rotate(-4deg)}
.coupon.main-coupon{
  z-index:3;left:8%;top:62px;width:79%;min-height:260px;padding:28px;
  background:
    linear-gradient(90deg,transparent 0 72%,rgba(255,255,255,.035) 72%),
    linear-gradient(145deg,#70294d,#3d1838 68%);
  border-color:rgba(244,223,196,.27);
}
.main-coupon:before,.main-coupon:after{
  content:"";position:absolute;right:25%;width:30px;height:30px;border-radius:50%;
  background:var(--plum);border:1px solid var(--line);
}
.main-coupon:before{top:-16px}.main-coupon:after{bottom:-16px}
.coupon-top{display:flex;justify-content:space-between;gap:15px;color:#edd3d2;font-size:.78rem}
.coupon-mark{
  display:inline-flex;padding:4px 9px;border:1px solid rgba(244,223,196,.28);
  border-radius:999px;color:var(--sand);
}
.coupon h2{font-size:clamp(1.55rem,3vw,2.35rem);line-height:1.16;margin:29px 0 10px}
.coupon p{max-width:310px;color:#e3c8cd;font-size:.9rem}
.coupon-bottom{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-top:25px}
.coupon-code span{display:block;color:var(--muted);font-size:.7rem}
.coupon-code b{font-size:1.3rem;letter-spacing:.08em;color:var(--sand)}
.claimed{background:var(--teal)!important;color:#17251f!important;box-shadow:none!important}
.notice{
  display:none;position:fixed;z-index:80;right:24px;bottom:24px;max-width:360px;
  padding:14px 18px;border:1px solid rgba(134,199,173,.38);border-radius:13px;
  background:#203429;color:#e8fff5;box-shadow:var(--shadow);
}
.notice.show{display:block;animation:noticeIn .3s ease}
@keyframes noticeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.section{padding:88px 0}
.section.alt{background:#2a1729}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
.section-head h2{font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.2;letter-spacing:-.04em}
.section-head p{max-width:550px;color:var(--muted)}
.kicker{display:block;color:var(--coral);font-weight:700;font-size:.78rem;letter-spacing:.14em;margin-bottom:10px}
.metrics{
  display:grid;grid-template-columns:1.35fr .85fr .9fr 1.1fr;
  gap:13px;align-items:stretch;
}
.metric{
  position:relative;min-height:180px;padding:23px;border:1px solid var(--line);
  border-radius:var(--r);background:#291629;overflow:hidden;
}
.metric.featured{background:linear-gradient(145deg,#57203f,#32152e)}
.metric-label{color:var(--muted);font-size:.8rem}
.metric strong{display:block;font-size:clamp(2rem,4vw,3.7rem);line-height:1.1;margin:14px 0 8px}
.metric.featured strong{color:var(--coral)}
.metric small{color:var(--teal)}
.metric-bars{display:flex;align-items:end;gap:5px;height:44px;margin-top:13px}
.metric-bars i{display:block;flex:1;background:rgba(240,120,93,.36);border-radius:3px 3px 0 0}
.metric-bars i:nth-child(2n){background:rgba(134,199,173,.5)}
.mini-scale{height:7px;border-radius:99px;background:#160c18;margin-top:22px;overflow:hidden}
.mini-scale i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--coral),var(--sand))}
.matrix{
  display:grid;grid-template-columns:1.25fr .75fr .75fr;grid-template-rows:auto auto;
  gap:15px;
}
.tile{
  position:relative;padding:27px;border:1px solid var(--line);border-radius:var(--r);
  background:#281527;min-height:205px;transition:border-color .25s,background .25s,box-shadow .25s;
}
.tile:hover{border-color:rgba(240,120,93,.6);background:#31192f;box-shadow:var(--shadow-soft)}
.tile.main{grid-row:span 2;background:linear-gradient(145deg,#5a2044,#32152e);min-height:425px}
.tile.main:after{
  content:"◇";position:absolute;right:26px;bottom:10px;font-size:8rem;
  color:rgba(244,223,196,.055);line-height:1;
}
.tile-icon{
  width:45px;height:45px;display:grid;place-items:center;border-radius:13px;
  background:rgba(240,120,93,.13);color:var(--coral);font-size:1.2rem;margin-bottom:24px;
}
.tile h3{font-size:1.23rem;margin-bottom:9px}
.tile p{color:var(--muted);font-size:.9rem}
.tile.main h3{font-size:clamp(1.65rem,3vw,2.45rem);line-height:1.2;max-width:380px}
.tile.main p{max-width:480px;margin-top:15px}
.tile a{display:inline-block;color:var(--sand);margin-top:24px;font-weight:700;font-size:.9rem}
.tile a:hover{color:var(--coral)}
.tags{margin-top:21px}
.tag{
  display:inline-block;padding:4px 10px;border:1px solid var(--line);
  border-radius:99px;color:var(--muted);font-size:.76rem;margin:5px 4px 0 0;
}
.process-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:18px;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#241324;
}
.process-step{position:relative;padding:25px 21px;border-right:1px solid var(--line)}
.process-step:last-child{border-right:0}
.process-step b{display:block;color:var(--coral);font-size:.75rem;letter-spacing:.1em;margin-bottom:8px}
.process-step strong{display:block;margin-bottom:5px}
.process-step p{color:var(--muted);font-size:.8rem}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-box{
  padding:29px;border:1px solid var(--line);border-radius:var(--r);
  background:#251426;box-shadow:var(--shadow-soft);
}
.compare-box.highlight{background:linear-gradient(145deg,#3e1b36,#281527);border-color:rgba(134,199,173,.25)}
.compare-title{display:flex;justify-content:space-between;gap:20px;color:var(--muted);margin-bottom:25px}
.compare-title b{color:var(--coral)}
.compare-box.highlight .compare-title b{color:var(--teal)}
.compare-row{margin:18px 0}
.compare-row div{display:flex;justify-content:space-between;gap:20px;color:#d9c4cd;font-size:.86rem;margin-bottom:7px}
.bar{height:10px;background:#170d19;border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:inherit;background:var(--coral)}
.highlight .bar i{background:linear-gradient(90deg,var(--teal),var(--sand))}
.compare-note{
  margin-top:19px;padding-top:17px;border-top:1px solid var(--line);
  color:var(--muted);font-size:.82rem;
}
.faq-wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:65px;align-items:start}
.faq-intro{
  position:sticky;top:130px;padding:28px;border-left:2px solid var(--coral);
}
.faq-intro h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.2}
.faq-intro p{color:var(--muted);margin:15px 0 22px}
.faq{background:#251426;border:1px solid var(--line);border-radius:var(--r);padding:3px 24px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:21px 4px;font-weight:700;color:var(--cream);background:none;text-align:left;
}
.faq-q span{color:var(--coral);font-size:1.3rem;transition:transform .25s}
.faq-a{max-height:0;overflow:hidden;color:var(--muted);transition:max-height .35s,padding .35s}
.faq-item.open .faq-a{max-height:180px;padding:0 35px 20px 4px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{
  background:radial-gradient(circle at 80% 20%,rgba(240,120,93,.33),transparent 25%),#57203f;
  padding:65px 0;
}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:55px;align-items:center}
.cta h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.15;letter-spacing:-.04em}
.cta p{color:#e7cfd1;margin:18px 0}
.benefit-list{display:flex;flex-wrap:wrap;gap:8px}
.benefit-list span{
  padding:6px 11px;border:1px solid rgba(244,223,196,.2);
  border-radius:999px;color:var(--sand);font-size:.78rem;
}
form{
  display:grid;gap:12px;background:rgba(37,20,38,.88);padding:25px;
  border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:grid;gap:6px;color:#e5d2d1;font-size:.82rem}
input,select,textarea{
  width:100%;background:#1c101d;border:1px solid var(--line);border-radius:10px;
  padding:12px 13px;color:var(--cream);outline:0;transition:border-color .25s,box-shadow .25s;
}
input::placeholder,textarea::placeholder{color:#776574}
select{appearance:auto}
textarea{min-height:90px;resize:vertical}
input:hover,select:hover,textarea:hover{border-color:rgba(244,223,196,.3)}
.form-note{font-size:.75rem;color:var(--muted)}
.form-status{display:none;padding:9px 11px;border-radius:9px;font-size:.8rem}
.form-status.success{display:block;background:rgba(134,199,173,.12);color:#bcebd7}
.form-status.error{display:block;background:rgba(240,120,93,.13);color:#ffc1b4}
.site-footer{padding:48px 0 25px;background:#170d19}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-grid h4{color:var(--sand);margin-bottom:14px}
.footer-grid p,.footer-grid a{display:block;color:var(--muted);font-size:.86rem;margin:7px 0}
.footer-grid a:hover{color:var(--coral)}
.copyright{display:flex;justify-content:space-between;color:#806c7b;font-size:.76rem;padding-top:20px}
.back-top{
  position:fixed;right:22px;bottom:84px;z-index:20;width:43px;height:43px;border-radius:50%;
  background:#3b1b36;color:var(--sand);border:1px solid var(--line);box-shadow:var(--shadow-soft);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;
}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--coral);color:#26121f}
@media (max-width:1024px){
  .hero-layout{grid-template-columns:1fr;gap:42px}
  .coupon-wall{max-width:680px;width:100%;margin:auto}
  .metrics{grid-template-columns:1fr 1fr}
  .matrix{grid-template-columns:1fr 1fr}
  .tile.main{grid-column:span 2;grid-row:auto;min-height:340px}
  .process-strip{grid-template-columns:1fr 1fr}
  .process-step:nth-child(2){border-right:0}
  .process-step:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-intro{position:static}
  .cta-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:768px){
  .container{width:min(100% - 28px,var(--max))}
  .topline{min-height:48px}
  .status span:last-child{display:none}
  .navline{position:relative;gap:10px}
  .menu{display:block;margin-left:0;width:38px;height:38px}
  .navlinks{
    display:none;position:absolute;top:58px;left:0;right:0;padding:12px;
    background:#251426;border:1px solid var(--line);border-radius:0 0 15px 15px;
    flex-direction:column;align-items:stretch;box-shadow:var(--shadow);
  }
  .navlinks.open{display:flex}
  .navlinks a{text-align:center}
  .search{margin-left:auto}
  .search input{width:80px}
  .inner-hero{padding:55px 0 48px}
  .inner-hero:before{font-size:3rem}
  h1{font-size:clamp(2.35rem,10vw,4rem)}
  .coupon-wall{min-height:370px}
  .coupon.main-coupon{left:3%;width:94%}
  .section{padding:64px 0}
  .section-head{display:block}
  .section-head p{margin-top:13px}
  .compare-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .brand{font-size:1rem}
  .status{display:none}
  .search input{width:68px}
  .hero-actions .btn{width:100%}
  .hero-notes{display:grid;gap:8px}
  .coupon-wall{min-height:410px}
  .coupon.side{width:72%;height:125px}
  .coupon.side.one{right:0}
  .coupon.main-coupon{top:72px;min-height:280px;padding:22px}
  .coupon h2{margin-top:23px}
  .coupon-bottom{align-items:stretch;flex-direction:column}
  .coupon-bottom .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .metric{min-height:155px}
  .matrix{grid-template-columns:1fr}
  .tile.main{grid-column:auto;min-height:360px}
  .process-strip{grid-template-columns:1fr}
  .process-step{border-right:0;border-bottom:1px solid var(--line)}
  .process-step:last-child{border-bottom:0}
  .form-row{grid-template-columns:1fr}
  .faq{padding:3px 16px}
  .faq-q{font-size:.94rem}
  .footer-grid{grid-template-columns:1fr}
  .copyright{flex-direction:column;gap:6px}
  .notice{left:14px;right:14px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}