/* roulang page: index */
:root{
  --neon:#00D8B4;
  --neon-deep:#00A98C;
  --violet:#7A5CFF;
  --orange:#FF6A3D;
  --ink-900:#0B0E12;
  --ink-800:#14181D;
  --ink-700:#0E1116;
  --bg:#F5F7F8;
  --bg-soft:#F7F9FA;
  --card:#FFFFFF;
  --line:#E6EAEF;
  --line-dark:rgba(255,255,255,.10);
  --text:#101828;
  --text-2:#5A6572;
  --text-3:#8A94A0;
  --ok:#22C55E;
  --warn:#F5A524;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,24,40,.04);
  --sh2:0 8px 24px rgba(16,24,40,.06);
  --sh3:0 16px 40px rgba(16,24,40,.10);
  --sec:88px;
  --gap:24px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --num-font:"Inter","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--neon);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:56px 0;}
.section__head{max-width:760px;margin-bottom:40px;}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--neon-deep);font-weight:600;margin-bottom:14px;
}
.section__eyebrow::before{content:"";width:20px;height:2px;background:var(--neon);border-radius:2px;}
h2{font-size:34px;line-height:1.25;font-weight:700;letter-spacing:.01em;}
.section__desc{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8;}
h3{font-size:22px;line-height:1.4;font-weight:600;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease-out;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,24,40,.06);}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo__mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:var(--ink-900);color:var(--neon);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--num-font);font-size:14px;font-weight:700;letter-spacing:.02em;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15;}
.logo__text b{font-size:16px;font-weight:700;letter-spacing:.01em;}
.logo__text i{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.nav{display:flex;align-items:center;gap:32px;}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;transition:color .16s ease-out;
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;
  background:var(--neon);border-radius:2px;transform:translateX(-50%);
  transition:width .24s ease-out;
}
.nav__link:hover{color:var(--neon-deep);}
.nav__link:hover::after{width:60%;}
.nav__link.is-active{color:var(--text);font-weight:600;}
.nav__link.is-active::after{width:60%;}
.header__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.signin{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;color:var(--text);
  padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.signin svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;}
.signin:hover{border-color:var(--neon);color:var(--neon-deep);background:rgba(0,216,180,.06);}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;cursor:pointer;padding:0;position:relative;
}
.burger span{
  position:absolute;left:50%;width:16px;height:1.5px;background:var(--text);
  border-radius:2px;transform:translateX(-50%);transition:transform .24s ease-out,opacity .2s ease-out;
}
.burger span:first-child{top:16px;}
.burger span:last-child{top:23px;}
.burger.is-open span:first-child{transform:translateX(-50%) translateY(3.5px) rotate(45deg);}
.burger.is-open span:last-child{transform:translateX(-50%) translateY(-3.5px) rotate(-45deg);}
.drawer{
  display:none;position:fixed;inset:60px 0 0 0;background:#fff;z-index:110;
  padding:28px 20px 110px;overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer__link{
  display:block;font-size:20px;font-weight:600;padding:18px 0;
  border-bottom:1px solid var(--line);opacity:0;transform:translateY(8px);
  animation:drawerIn .24s ease-out forwards;
}
.drawer__link:nth-child(1){animation-delay:.03s;}
.drawer__link:nth-child(2){animation-delay:.09s;}
.drawer__link:nth-child(3){animation-delay:.15s;}
.drawer__link.is-active{color:var(--neon-deep);}
@keyframes drawerIn{to{opacity:1;transform:none;}}
.drawer__cta{
  position:fixed;left:0;right:0;bottom:0;padding:16px 20px 22px;background:#fff;
  border-top:1px solid var(--line);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,border-color .16s ease-out,color .16s ease-out;
}
.btn--primary{background:var(--neon);color:var(--ink-900);}
.btn--primary:hover{background:#00E7C0;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon);}
.btn--dark{background:var(--ink-900);color:#fff;}
.btn--dark:hover{background:#1b2129;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn--line{background:#fff;color:var(--text);border-color:var(--line);}
.btn--line:hover{border-color:var(--neon);color:var(--neon-deep);}
.btn--block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;background:var(--ink-900);color:#fff;
  padding:96px 0 88px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
}
.hero__veil{
  position:absolute;inset:0;
  background:
    radial-gradient(680px 420px at 88% 6%, rgba(0,216,180,.18), transparent 62%),
    linear-gradient(90deg,rgba(11,14,18,.94) 0%,rgba(11,14,18,.86) 42%,rgba(11,14,18,.38) 100%);
}
.hero__inner{position:relative;z-index:2;}
.hero__main{max-width:640px;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;font-weight:600;color:var(--neon);
  border:1px solid rgba(0,216,180,.35);border-radius:var(--r-pill);
  padding:7px 14px;margin-bottom:26px;
}
.hero__eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--neon);display:block;font-style:normal;}
.hero h1{
  font-size:clamp(34px,4.4vw,56px);line-height:1.12;font-weight:800;
  letter-spacing:.01em;color:#fff;
}
.hero__sub{
  margin-top:22px;max-width:560px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.72);
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.countdown{display:flex;align-items:flex-start;gap:10px;margin-top:38px;flex-wrap:wrap;}
.cd-unit{
  width:56px;height:72px;background:var(--ink-800);border:1px solid #262C33;border-radius:12px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
}
.cd-num{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;color:var(--orange);line-height:1;}
.cd-label{font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.06em;}
.cd-sep{font-size:26px;line-height:72px;color:rgba(255,255,255,.4);font-family:var(--num-font);}
.hero__chip{
  position:absolute;top:8px;right:32px;z-index:3;
  border:1px solid rgba(255,255,255,.22);border-radius:var(--r-pill);
  padding:9px 18px;font-size:13px;color:rgba(255,255,255,.78);
  display:inline-flex;align-items:center;gap:10px;background:rgba(11,14,18,.4);
}
.hero__chip b{color:#fff;font-weight:600;}
.hero__chip em{font-style:normal;color:rgba(255,255,255,.3);}

/* ============ 信息条 ============ */
.infobar{background:#fff;border-bottom:1px solid var(--line);}
.infobar__grid{display:grid;grid-template-columns:repeat(4,1fr);}
.infobar__item{padding:26px 28px;border-left:1px solid var(--line);}
.infobar__item:first-child{border-left:0;padding-left:0;}
.infobar__k{font-size:12px;letter-spacing:.12em;color:var(--text-3);font-weight:600;text-transform:uppercase;}
.infobar__v{margin-top:8px;font-size:18px;font-weight:600;color:var(--text);}
.infobar__v small{display:block;font-size:13px;font-weight:400;color:var(--text-2);margin-top:2px;}

/* ============ 时间线 ============ */
.tabs{display:flex;flex-wrap:wrap;gap:32px;border-bottom:1px solid var(--line);margin-bottom:48px;}
.tab{
  position:relative;background:none;border:0;padding:0 0 16px;cursor:pointer;
  font-size:16px;font-weight:500;color:var(--text-2);transition:color .16s ease-out;
}
.tab::after{
  content:"";position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:var(--neon);transition:width .24s ease-out;
}
.tab:hover{color:var(--text);}
.tab.is-active{color:var(--text);font-weight:600;}
.tab.is-active::after{width:100%;}
.tab small{display:block;font-size:12px;color:var(--text-3);font-weight:400;margin-top:4px;letter-spacing:0;}
.timeline{position:relative;display:grid;grid-template-columns:1fr 1fr;}
.timeline::before{
  content:"";position:absolute;left:50%;top:10px;bottom:10px;width:1px;
  background:var(--line);transform:translateX(-50%);
}
.tl-item{position:relative;padding-bottom:44px;}
.tl-item:nth-child(odd){grid-column:1;padding-right:48px;text-align:right;}
.tl-item:nth-child(even){grid-column:2;padding-left:48px;margin-top:64px;}
.tl-item::before{
  content:"";position:absolute;top:9px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--neon);
}
.tl-item:nth-child(odd)::before{right:-6px;}
.tl-item:nth-child(even)::before{left:-6px;}
.tl-item--hot::before{background:var(--violet);border-color:var(--violet);box-shadow:0 0 0 6px rgba(122,92,255,.16);}
.tl-time{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:15px;font-weight:600;color:var(--neon-deep);letter-spacing:-.01em;}
.tl-title{margin-top:8px;font-size:20px;font-weight:700;line-height:1.4;}
.tl-meta{margin-top:6px;font-size:14px;color:var(--text-2);}
.tl-panel{display:none;}
.tl-panel.is-active{display:block;}

/* ============ 嘉宾卡带 ============ */
.rail{
  display:flex;gap:var(--gap);overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 0 28px;margin:0 -32px;padding-left:32px;padding-right:32px;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px;}
.guest{
  flex:0 0 288px;scroll-snap-align:start;position:relative;border-radius:var(--r-card);
  overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--sh1);
  transition:transform .16s ease-out,box-shadow .16s ease-out;
}
.guest:nth-child(odd){margin-top:0;}
.guest:nth-child(even){margin-top:24px;}
.guest:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.guest__media{position:relative;aspect-ratio:4/5;overflow:hidden;background:rgba(0,216,180,.08);}
.guest__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.guest:hover .guest__media img{transform:scale(1.04);}
.guest__veil{
  position:absolute;left:0;right:0;bottom:0;padding:44px 18px 16px;
  background:linear-gradient(180deg,rgba(11,14,18,0),rgba(11,14,18,.88));
  color:#fff;opacity:0;transition:opacity .24s ease-out;
}
.guest:hover .guest__veil{opacity:1;}
.guest__veil p{font-size:13px;line-height:1.6;color:rgba(255,255,255,.82);}
.guest__body{padding:18px 20px 22px;}
.guest__body h3{font-size:18px;font-weight:600;}
.guest__role{margin-top:6px;font-size:13px;color:var(--text-2);}
.guest__tag{
  display:inline-block;margin-top:12px;font-size:12px;color:var(--neon-deep);
  background:rgba(0,216,180,.10);border-radius:var(--r-pill);padding:4px 10px;
}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:start;}
.news-feature{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);transition:transform .16s ease-out,box-shadow .16s ease-out;
}
.news-feature:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.news-feature__media{aspect-ratio:16/9;background:rgba(0,216,180,.08);overflow:hidden;}
.news-feature__media img{width:100%;height:100%;object-fit:cover;}
.news-feature__body{padding:24px 26px 28px;}
.pill{
  display:inline-block;font-size:12px;font-weight:600;color:var(--neon-deep);
  background:rgba(0,216,180,.10);border-radius:var(--r-pill);padding:4px 12px;letter-spacing:.02em;
}
.news-feature__body h3{margin-top:14px;font-size:22px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-feature__body p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-feature__date{display:block;margin-top:18px;font-size:13px;color:var(--text-3);}
.news-list{display:flex;flex-direction:column;}
.news-list li + li{border-top:1px solid var(--line);}
.news-list a{
  display:flex;gap:16px;align-items:center;padding:14px 12px;border-radius:var(--r-img);
  transition:background .16s ease-out,transform .16s ease-out;
}
.news-list a:hover{background:var(--bg-soft);transform:translateX(4px);}
.news-list__thumb{flex:0 0 96px;width:96px;height:72px;border-radius:var(--r-img);overflow:hidden;background:rgba(0,216,180,.08);}
.news-list__thumb img{width:100%;height:100%;object-fit:cover;}
.news-list__text{min-width:0;}
.news-list__text h4{
  font-size:16px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-list__text span{display:block;margin-top:6px;font-size:13px;color:var(--text-3);}
.empty{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;
  background:#fff;color:var(--text-2);
}
.empty__icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;color:var(--text-3);
}
.empty__icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6;}
.empty__link{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;color:var(--neon-deep);border-bottom:1px solid currentColor;}

/* ============ 票种对比 ============ */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);align-items:start;padding-top:14px;}
.plan{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 26px 28px;box-shadow:var(--sh1);
  transition:transform .16s ease-out,box-shadow .16s ease-out;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.plan--hot{transform:translateY(-12px);border-top:3px solid var(--neon);box-shadow:var(--sh2);}
.plan--hot:hover{transform:translateY(-14px);}
.plan__badge{
  position:absolute;top:-13px;right:20px;background:var(--orange);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
}
.plan__name{font-size:18px;font-weight:700;}
.plan__desc{margin-top:6px;font-size:13px;color:var(--text-2);}
.plan__price{margin-top:20px;display:flex;align-items:baseline;gap:6px;}
.plan__price b{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-size:40px;font-weight:700;letter-spacing:-.02em;}
.plan__price span{font-size:14px;color:var(--text-3);}
.plan__list{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px;}
.plan__list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);line-height:1.6;}
.plan__list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:8px;
  border-left:2px solid var(--neon);border-bottom:2px solid var(--neon);
  transform:rotate(-45deg);border-radius:1px;
}
.plan__list li.is-off{color:var(--text-3);}
.plan__list li.is-off::before{border-color:var(--line);}

/* ============ FAQ ============ */
.faq{max-width:800px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:24px 0;font-size:17px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;flex:0 0 24px;width:24px;height:24px;transition:transform .24s ease-out;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--neon-deep);border-radius:2px;
}
.faq-icon::before{width:14px;height:1.8px;transform:translate(-50%,-50%);}
.faq-icon::after{width:1.8px;height:14px;transform:translate(-50%,-50%);}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item p{padding:0 0 26px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:94%;}

/* ============ 报名 CTA ============ */
.signup{background:var(--ink-700);color:#fff;padding:var(--sec) 0;}
.signup__grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.signup h2{color:#fff;}
.signup__lead{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.66);max-width:440px;}
.signup__facts{margin-top:34px;display:flex;flex-direction:column;gap:16px;max-width:420px;}
.signup__facts li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.78);}
.signup__facts i{
  flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--neon);
}
.form-card{
  background:var(--ink-800);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;background:#171C22;border:1px solid #2A3138;border-radius:var(--r-btn);
  color:#fff;font-size:15px;padding:0 14px;height:48px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.3);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(0,216,180,.18);
}
.field__hint{margin-top:8px;font-size:12px;color:rgba(255,255,255,.42);}
.field__err{margin-top:8px;font-size:12px;color:var(--err);display:none;}
.field.is-error input{border-color:var(--err);}
.field.is-error .field__err{display:block;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{position:relative;}
.chip input{position:absolute;opacity:0;width:0;height:0;}
.chip span{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border:1px solid #2A3138;border-radius:var(--r-pill);
  font-size:14px;color:rgba(255,255,255,.72);cursor:pointer;
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.chip input:checked + span{border-color:var(--neon);color:var(--ink-900);background:var(--neon);font-weight:600;}
.chip input:focus-visible + span{outline:2px solid var(--neon);outline-offset:2px;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;}
.check input{width:16px;height:16px;margin-top:4px;accent-color:var(--neon);}
.form-note{margin-top:16px;font-size:12px;color:rgba(255,255,255,.4);text-align:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.66);padding:72px 0 0;}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer__brand{display:flex;flex-direction:column;gap:16px;}
.footer__logo{display:flex;align-items:center;gap:12px;}
.footer__logo .logo__mark{background:rgba(255,255,255,.06);}
.footer__logo b{display:block;color:#fff;font-size:16px;font-weight:700;line-height:1.2;}
.footer__logo i{font-style:normal;font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.06em;}
.footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);max-width:300px;}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer__links{display:flex;flex-direction:column;}
.footer__links a{
  font-size:14px;line-height:2.2;color:rgba(255,255,255,.62);
  transition:color .16s ease-out;width:fit-content;
}
.footer__links a:hover{color:var(--neon);text-decoration:underline;text-underline-offset:4px;}
.footer__contact li{font-size:14px;line-height:2.1;color:rgba(255,255,255,.62);}
.footer__bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.42);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease-out,transform .4s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  :root{--sec:72px;}
  .nav{gap:22px;}
  .infobar__item{padding:22px 20px;}
  .news-grid{grid-template-columns:1fr;gap:24px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav,.signin{display:none;}
  .burger{display:block;}
  .header__inner{height:60px;}
  .hero{padding:64px 0 60px;}
  .hero__chip{position:static;margin-top:26px;display:inline-flex;}
  .hero__sub{font-size:16px;}
  .plans{grid-template-columns:1fr;gap:20px;}
  .plan--hot{transform:none;}
  .plan--hot:hover{transform:translateY(-2px);}
  .signup__grid{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:768px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  h2{font-size:26px;}
  .infobar__grid{grid-template-columns:1fr 1fr;}
  .infobar__item{border-left:0;border-top:1px solid var(--line);padding:20px 0;}
  .infobar__item:nth-child(1),.infobar__item:nth-child(2){border-top:0;}
  .infobar__item:nth-child(even){padding-left:20px;border-left:1px solid var(--line);}
  .infobar__v{font-size:16px;}
  .timeline{grid-template-columns:1fr;}
  .timeline::before{left:0;transform:none;}
  .tl-item,
  .tl-item:nth-child(odd),
  .tl-item:nth-child(even){
    grid-column:1;text-align:left;padding:0 0 32px 32px;margin-top:0;
  }
  .tl-item:nth-child(odd)::before,
  .tl-item:nth-child(even)::before{left:-6px;right:auto;}
  .tl-title{font-size:18px;}
  .rail{margin:0 -20px;padding-left:20px;padding-right:20px;}
  .guest{flex:0 0 250px;}
  .guest:nth-child(even){margin-top:0;}
  .form-card{padding:24px 20px;}
  .form-row{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .tabs{gap:22px;}
  .tab{font-size:15px;}
}
@media (max-width:520px){
  .cd-unit{width:46px;height:58px;}
  .cd-num{font-size:23px;}
  .cd-sep{line-height:58px;font-size:20px;}
  .hero__actions .btn{width:100%;}
  .news-list a{gap:12px;padding:12px 8px;}
  .news-list__thumb{flex:0 0 80px;width:80px;height:62px;}
  .logo__text b{font-size:15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand:#00D8B4;
  --brand-deep:#00A98C;
  --violet:#7A5CFF;
  --orange:#FF6A3D;
  --ink:#0B0E12;
  --ink-2:#14181D;
  --ink-3:#0E1116;
  --page:#F5F7F8;
  --card:#FFFFFF;
  --line:#E6EAEF;
  --line-dark:rgba(255,255,255,.10);
  --text:#101828;
  --text-2:#5A6572;
  --text-3:#8A94A0;
  --success:#22C55E;
  --warn:#F5A524;
  --danger:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh1:0 1px 2px rgba(16,24,40,.04);
  --sh2:0 8px 24px rgba(16,24,40,.06);
  --sh3:0 16px 40px rgba(16,24,40,.10);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-deep);text-decoration:none}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh2)}
.header__inner{display:flex;align-items:center;gap:40px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo__mark{
  width:38px;height:38px;border-radius:10px;background:var(--ink);color:var(--brand);
  display:grid;place-items:center;font:800 13px/1 var(--font-num);letter-spacing:.04em;flex:none;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__text b{font-size:15px;font-weight:700;color:var(--text);letter-spacing:.01em}
.logo__text i{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.1em}
.nav{display:flex;align-items:center;gap:32px;margin-right:auto}
.nav__link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .16s ease-out;
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);transition:width .24s ease-out;
}
.nav__link:hover{color:var(--brand-deep)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--text);font-weight:600}
.nav__link.is-active::after{width:60%}
.header__actions{display:flex;align-items:center;gap:14px;flex:none}
.header__login{
  display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;transition:all .16s ease-out;
}
.header__login:hover{color:var(--brand-deep);border-color:var(--brand);background:rgba(0,216,180,.06)}
.header__login svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6}
.burger{
  display:none;width:40px;height:40px;border:0;background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:6px;border-radius:8px;
}
.burger span{display:block;width:20px;height:1.5px;background:var(--text);border-radius:2px;transition:transform .24s ease-out}
.burger.is-open span:first-child{transform:translateY(3.75px) rotate(45deg)}
.burger.is-open span:last-child{transform:translateY(-3.75px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;padding:88px 24px 120px;
  display:flex;flex-direction:column;transform:translateX(100%);
  transition:transform .24s ease-out;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__link{
  font-size:20px;font-weight:500;color:var(--text);padding:18px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(8px);
  transition:opacity .24s ease-out,transform .24s ease-out,color .16s ease-out;
}
.drawer__link:hover{color:var(--brand-deep)}
.drawer.is-open .drawer__link{opacity:1;transform:none}
.drawer.is-open .drawer__link:nth-child(2){transition-delay:.06s}
.drawer.is-open .drawer__link:nth-child(3){transition-delay:.12s}
.drawer__foot{margin-top:auto;padding-top:28px}
.btn--block{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,transform .16s ease-out,box-shadow .16s ease-out,filter .16s ease-out;
}
.btn--primary{background:var(--brand);color:var(--ink)}
.btn--primary:hover{background:var(--orange);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh2)}
.btn--primary:active{transform:translateY(0)}
.btn--outline{border-color:var(--line);background:#fff;color:var(--text)}
.btn--outline:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh1)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- article hero ---------- */
.article-hero{background:#fff;border-bottom:1px solid var(--line);padding:36px 0 32px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-3);transition:color .16s ease-out}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs span.sep{color:#C4CCD4}
.crumbs .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:rgba(0,216,180,.1);color:var(--brand-deep);
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;
}
.article-hero h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.25;font-weight:800;
  max-width:900px;word-break:break-word;
}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;
  font-size:13px;color:var(--text-3);
}
.meta-line .dot{color:#C4CCD4}
.meta-line strong{color:var(--text-2);font-weight:500}

/* ---------- layout ---------- */
.article-section{padding:56px 0 88px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 280px;gap:56px;justify-content:center;align-items:start;
}
.article-main{min-width:0}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:44px 48px;
}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;
  margin:2.4em 0 .9em;padding-left:28px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;width:4px;height:20px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:1.8em 0 .7em}
.article-body h4{font-size:17px;font-weight:600;margin:1.5em 0 .6em}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--orange)}
.article-body strong{font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:0}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin-bottom:.55em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:5px;height:5px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:oli}
.article-body ol li::before{
  counter-increment:oli;content:counter(oli) ".";position:absolute;left:0;top:0;
  width:auto;height:auto;background:none;color:var(--brand-deep);font-weight:700;font-size:15px;font-family:var(--font-num);
}
.article-body blockquote{
  margin:1.8em 0;padding:18px 24px;border-left:3px solid var(--brand);
  background:#F4F7F8;border-radius:0 12px 12px 0;color:var(--text-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:1.6em auto;box-shadow:var(--sh1)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:#F4F7F8;font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.02em}
.article-body pre{
  background:var(--ink-3);color:#E6EAEF;border-radius:var(--r-btn);padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.8em 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-body :not(pre)>code{background:#EFF3F5;color:#0B6B5A;padding:2px 6px;border-radius:6px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* ---------- tags & share ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.tag{
  display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:all .16s ease-out;
}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);background:rgba(0,216,180,.06)}
.share-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:24px;padding-top:24px;border-top:1px solid var(--line);
}
.share-row__label{font-size:13px;color:var(--text-3)}
.share-row__btns{display:flex;gap:10px;flex-wrap:wrap}
.copy-btn{
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--text-2);font-size:13px;cursor:pointer;
  transition:all .16s ease-out;
}
.copy-btn:hover{border-color:var(--brand);color:var(--brand-deep)}
.copy-btn svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6}
.copy-btn.is-done{border-color:var(--success);color:var(--success)}

/* ---------- pager ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px}
.pager__item{
  display:block;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  transition:all .16s ease-out;box-shadow:var(--sh1);
}
.pager__item:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh2)}
.pager__item small{display:block;font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-bottom:8px}
.pager__item b{display:block;font-size:16px;font-weight:600;color:var(--text);line-height:1.5}
.pager__item--next{text-align:right}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:22px 22px 20px;
}
.side-card h3{
  font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.1em;margin-bottom:16px;
}
.toc{display:flex;flex-direction:column}
.toc__link{
  position:relative;display:block;padding:8px 0 8px 14px;font-size:14px;line-height:1.6;
  color:var(--text-2);border-left:2px solid transparent;transition:all .16s ease-out;
}
.toc__link:hover{color:var(--brand-deep)}
.toc__link.is-current{color:var(--brand-deep);font-weight:600;border-left-color:var(--brand)}
.side-list{display:flex;flex-direction:column;gap:16px}
.side-item{display:flex;gap:12px;align-items:flex-start}
.side-item img{width:64px;height:64px;object-fit:cover;border-radius:10px;flex:none}
.side-item b{display:block;font-size:14px;font-weight:600;line-height:1.55;color:var(--text)}
.side-item span{display:block;font-size:12px;color:var(--text-3);margin-top:4px}
.side-item:hover b{color:var(--brand-deep)}
.side-cta{
  background:var(--brand);border-radius:var(--r-card);padding:24px 22px;color:var(--ink);
}
.side-cta b{display:block;font-size:17px;font-weight:700;line-height:1.4}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(11,14,18,.72);margin:8px 0 16px}
.side-cta a{
  display:inline-flex;align-items:center;justify-content:center;width:100%;
  padding:12px 18px;border-radius:var(--r-btn);background:var(--ink);color:#fff;
  font-size:14px;font-weight:600;transition:all .16s ease-out;
}
.side-cta a:hover{background:var(--ink-2);color:var(--brand)}
.side-cta__time{
  display:flex;align-items:center;gap:6px;font-size:12px;margin-top:14px;color:rgba(11,14,18,.7);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}

/* ---------- empty ---------- */
.empty-state{
  border:1px dashed #C9D2D9;border-radius:var(--r-card);padding:56px 24px;text-align:center;background:#FAFBFC;
}
.empty-state svg{width:40px;height:40px;stroke:var(--text-3);fill:none;stroke-width:1.4;margin:0 auto 16px}
.empty-state b{display:block;font-size:18px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:18px}

/* ---------- related ---------- */
.related-section{padding:0 0 88px}
.section-head{margin-bottom:28px}
.section-head h2{font-size:26px;font-weight:700;line-height:1.3}
.section-head p{font-size:15px;color:var(--text-2);margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh1);padding:16px;transition:all .16s ease-out;
}
.related-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:#D8E0E7}
.related-card img{width:120px;height:80px;object-fit:cover;border-radius:10px;flex:none}
.related-card b{display:block;font-size:15px;font-weight:600;line-height:1.5;color:var(--text)}
.related-card p{font-size:13px;color:var(--text-2);line-height:1.65;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover b{color:var(--brand-deep)}

/* ---------- cta strip ---------- */
.cta-strip{background:var(--ink-3);padding:56px 0}
.cta-strip__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-strip h2{font-size:26px;font-weight:700;color:#fff;line-height:1.35}
.cta-strip p{font-size:15px;color:rgba(255,255,255,.62);margin-top:10px;max-width:560px}
.cta-strip__actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-strip .btn--ghost{border-color:rgba(255,255,255,.28);color:#fff;background:transparent}
.cta-strip .btn--ghost:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__logo{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer__logo b{display:block;font-size:15px;font-weight:700;color:#fff;line-height:1.2}
.footer__logo i{display:block;font-style:normal;font-size:11px;color:rgba(255,255,255,.45);letter-spacing:.1em}
.footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:340px}
.site-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer__links{display:flex;flex-direction:column}
.footer__links a{font-size:14px;line-height:2.2;color:rgba(255,255,255,.68)}
.footer__links a:hover{color:var(--brand);text-decoration:underline}
.footer__contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.68)}
.footer__bottom{
  border-top:1px solid var(--line-dark);padding:22px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(255,255,255,.42);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap}
  .sidebar>*{flex:1 1 280px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .related-grid{grid-template-columns:1fr}
}
@media (max-width:900px){
  .nav{display:none}
  .burger{display:flex}
  .header__actions .header__login{padding:8px 12px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .article-section{padding:40px 0 56px}
  .article-card{padding:28px 22px}
  .article-hero{padding:24px 0 24px}
  .article-body h2{margin-top:2em;font-size:22px}
  .article-body blockquote{padding:16px 18px}
  .related-section{padding:0 0 56px}
  .pager{grid-template-columns:1fr}
  .pager__item--next{text-align:left}
  .cta-strip{padding:44px 0}
  .cta-strip h2{font-size:22px}
  .footer__grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .sidebar>*{flex:1 1 100%}
}
@media (max-width:520px){
  .header__inner{height:60px;gap:16px}
  .logo__mark{width:34px;height:34px;font-size:12px}
  .header__login span{display:none}
  .article-card{padding:22px 16px}
  .meta-line{font-size:12px;gap:8px}
  .related-card img{width:96px;height:72px}
  .footer__bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category1 */
:root{
  --primary:#00D8B4;
  --primary-ink:#00A98C;
  --primary-soft:rgba(0,216,180,.08);
  --violet:#7A5CFF;
  --orange:#FF6A3D;
  --ink:#101828;
  --ink-2:#5A6572;
  --ink-3:#8A94A0;
  --bg:#F5F7F8;
  --card:#FFFFFF;
  --line:#E6EAEF;
  --dark:#0B0E12;
  --dark-2:#14181D;
  --line-dark:rgba(255,255,255,.10);
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 8px 24px rgba(16,24,40,.06);
  --sh-3:0 16px 40px rgba(16,24,40,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary-ink);outline-offset:2px;border-radius:6px}
.num,.statbar b,.event-card__meta,.pager{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__head{max-width:760px;margin-bottom:30px}
@media (min-width:1024px){.section__head{margin-bottom:46px}}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--primary-ink);margin-bottom:10px}
h2{font-size:26px;line-height:1.28;font-weight:700;letter-spacing:.01em}
@media (min-width:1024px){h2{font-size:34px}}
.section__lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:640px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease-out}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:60px}
@media (min-width:768px){.header__inner{height:68px}}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo__mark{
  width:36px;height:36px;border-radius:10px;background:var(--dark);color:var(--primary);
  display:grid;place-items:center;font-family:Inter,"Segoe UI",sans-serif;
  font-size:11px;font-weight:800;letter-spacing:.08em;flex:none;
}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__text b{font-size:15px;font-weight:800;letter-spacing:.01em}
.logo__text i{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:.1em}
@media (min-width:768px){
  .logo__mark{width:40px;height:40px;font-size:12px}
  .logo__text b{font-size:16px}
  .logo__text i{font-size:12px}
}
.nav{display:none}
@media (min-width:900px){.nav{display:flex;align-items:center;gap:32px}}
.nav__link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-2);padding:8px 0;transition:color .16s ease-out}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--primary-ink);transform:translateX(-50%);
  transition:width .24s var(--ease);
}
.nav__link:hover{color:var(--primary-ink)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--ink);font-weight:600}
.nav__link.is-active::after{width:60%}
.header__cta{
  display:none;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--ink);
  padding:8px 16px;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.header__cta:hover{border-color:var(--primary-ink);color:var(--primary-ink);background:var(--primary-soft)}
.header__cta svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6}
@media (min-width:900px){.header__cta{display:inline-flex}}
.burger{
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;
  width:44px;height:44px;border-radius:10px;transition:background .16s ease-out;
}
.burger:hover{background:#F1F4F6}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
@media (min-width:900px){.burger{display:none}}
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;padding:84px 24px 32px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer__close{
  position:absolute;top:14px;right:18px;width:44px;height:44px;border-radius:10px;
  display:grid;place-items:center;font-size:22px;line-height:1;color:var(--ink-2);
}
.drawer__close:hover{background:#F1F4F6;color:var(--ink)}
.drawer__link{
  font-size:20px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(8px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),color .16s ease-out;
}
.drawer.is-open .drawer__link{opacity:1;transform:none}
.drawer__link:hover{color:var(--primary-ink)}
.drawer__link.is-active{color:var(--primary-ink)}
.drawer__cta{margin-top:auto;padding-top:24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:14px 26px;font-size:15px;font-weight:600;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out,filter .16s ease-out;
}
.btn--primary{background:var(--primary);color:#0B0E12}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn--dark{background:var(--dark);color:#fff}
.btn--dark:hover{background:#171C22;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn--light{background:#fff;color:#0B0E12}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn--ghost{border:1px solid rgba(255,255,255,.28);color:#fff}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn--outline{border:1px solid var(--line);color:var(--ink);background:#fff}
.btn--outline:hover{border-color:var(--primary-ink);color:var(--primary-ink)}
.btn--block{width:100%}

/* ---------- category hero ---------- */
.cat-hero{
  background:#fff;border-bottom:1px solid var(--line);
  min-height:320px;display:flex;align-items:center;
  padding:32px 0 36px;
}
@media (min-width:1024px){.cat-hero{padding:44px 0 48px}}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.breadcrumb a{transition:color .16s ease-out}
.breadcrumb a:hover{color:var(--primary-ink)}
.breadcrumb .sep{color:#C6CED7}
.cat-hero__row{display:flex;flex-direction:column;gap:26px}
@media (min-width:1024px){
  .cat-hero__row{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:48px}
}
.cat-hero__main{border-left:4px solid var(--primary);padding-left:18px;max-width:700px}
@media (min-width:1024px){.cat-hero__main{padding-left:24px}}
.cat-hero h1{font-size:28px;line-height:1.2;font-weight:800;letter-spacing:.01em}
@media (min-width:768px){.cat-hero h1{font-size:34px}}
@media (min-width:1024px){.cat-hero h1{font-size:40px}}
.cat-hero__sub{margin-top:14px;font-size:16px;line-height:1.8;color:var(--ink-2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;flex:none}
.chip{
  font-size:13px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--ink-2);background:#fff;
  transition:border-color .16s ease-out,color .16s ease-out,background .16s ease-out;
}
.chip:hover{border-color:var(--primary-ink);color:var(--primary-ink)}
.chip.is-active{background:var(--primary-ink);border-color:var(--primary-ink);color:#fff;font-weight:600}

/* ---------- event cards ---------- */
.event-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.event-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.event-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s ease-out;
  display:flex;flex-direction:column;
}
.event-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8E0E6}
.event-card__media{position:relative;display:block;aspect-ratio:16/9;background:var(--primary-soft);overflow:hidden}
.event-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .24s var(--ease)}
.event-card:hover .event-card__media img{transform:scale(1.03)}
.badge{
  position:absolute;left:14px;top:14px;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);background:#fff;color:var(--ink);box-shadow:var(--sh-1);
}
.badge--live{background:var(--primary-ink);color:#fff}
.badge--soon{background:var(--violet);color:#fff}
.badge--past{background:#EAEEF2;color:var(--ink-3)}
.event-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
@media (min-width:1024px){.event-card__body{padding:24px 26px 28px}}
.event-card h3{font-size:19px;font-weight:700;line-height:1.4}
.event-card h3 a{transition:color .16s ease-out}
.event-card h3 a:hover{color:var(--primary-ink)}
.event-card__desc{
  margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.event-card__meta{
  margin-top:auto;padding-top:16px;display:flex;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.event-card__meta span:not(:last-child)::after{content:"·";margin:0 10px;color:#C9D1DA}
.pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:40px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:38px;height:38px;padding:0 12px;display:grid;place-items:center;
  border-radius:var(--r-pill);font-size:14px;color:var(--ink-2);
  transition:background .16s ease-out,color .16s ease-out;
}
.pager a:hover{background:#E9EEF1;color:var(--ink)}
.pager .is-current{background:var(--primary-ink);color:#fff;font-weight:600}

/* ---------- stat bar ---------- */
.statbar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0}
.statbar__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 16px}
@media (min-width:768px){.statbar__grid{grid-template-columns:repeat(4,1fr);gap:0}}
@media (min-width:768px){
  .statbar__grid>div{padding:0 24px;border-left:1px solid var(--line)}
  .statbar__grid>div:first-child{border-left:0;padding-left:0}
  .statbar__grid>div:last-child{padding-right:0}
}
.statbar b{display:block;font-size:28px;line-height:1.15;font-weight:800;letter-spacing:-.01em;font-family:Inter,"Segoe UI",sans-serif}
@media (min-width:1024px){.statbar b{font-size:32px}}
.statbar span{display:block;margin-top:4px;font-size:13px;color:var(--ink-3)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.tick-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.tick-list li{position:relative;padding-left:28px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:13px;height:13px;border-radius:50%;
  background:var(--primary-soft);border:1.5px solid var(--primary-ink);
}
.tick-list b{color:var(--ink);font-weight:600}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:768px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
.step{position:relative;padding-top:24px;border-top:2px solid var(--line)}
.step::before{content:"";position:absolute;left:0;top:-2px;width:28px;height:2px;border-radius:2px;background:var(--primary-ink)}
.step__no{
  display:block;margin-bottom:10px;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--primary-ink);font-family:Inter,"Segoe UI",sans-serif;
}
.step h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{
  position:relative;padding:22px 52px 22px 0;font-size:17px;font-weight:600;
  line-height:1.6;cursor:pointer;list-style:none;transition:color .16s ease-out;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--primary-ink)}
.faq__icon{position:absolute;right:10px;top:24px;width:18px;height:18px;transition:transform .24s var(--ease)}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--primary-ink);border-radius:2px}
.faq__icon::before{left:0;top:8px;width:18px;height:2px}
.faq__icon::after{left:8px;top:0;width:2px;height:18px}
.faq__item[open] .faq__icon{transform:rotate(45deg)}
.faq__body{padding:0 52px 24px 0}
.faq__body p{font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- cta strip ---------- */
.cta-strip{background:var(--primary-ink);color:#fff;padding:40px 0}
@media (min-width:1024px){.cta-strip{padding:52px 0}}
.cta-strip__inner{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
@media (min-width:900px){.cta-strip__inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px}}
.cta-strip h2{color:#fff;font-size:24px}
@media (min-width:1024px){.cta-strip h2{font-size:30px}}
.cta-strip p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);max-width:660px}
.cta-strip .btn{flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:56px 0 28px}
@media (min-width:1024px){.site-footer{padding:72px 0 32px}}
.footer__grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer__grid{grid-template-columns:repeat(2,1fr);gap:36px}}
@media (min-width:1024px){.footer__grid{grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:44px}}
.footer__logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer__logo .logo__mark{background:var(--dark-2);border:1px solid var(--line-dark);color:var(--primary)}
.footer__logo b{display:block;font-size:16px;font-weight:800;color:#fff;line-height:1.2}
.footer__logo i{display:block;font-style:normal;font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.45)}
.footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:330px}
.site-footer h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer__links{display:flex;flex-direction:column}
.footer__links a{font-size:14px;line-height:2.2;color:rgba(255,255,255,.65);transition:color .16s ease-out}
.footer__links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer__contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.65)}
.footer__bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:12px;color:rgba(255,255,255,.45);
}

/* ---------- misc ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.notice{
  display:flex;gap:12px;align-items:flex-start;padding:16px 20px;border-radius:var(--r-card);
  background:#fff;border:1px dashed #D5DDE3;font-size:14px;line-height:1.8;color:var(--ink-2);
}
.notice svg{width:18px;height:18px;flex:none;margin-top:4px;stroke:var(--primary-ink);fill:none;stroke-width:1.6}
@media (max-width:520px){
  .event-card__body{padding:18px 18px 22px}
  .event-card__meta{font-size:12px}
  .event-card__meta span:not(:last-child)::after{margin:0 7px}
  .statbar b{font-size:24px}
  .cta-strip{padding:36px 0}
}

/* roulang page: category2 */
:root{
  --brand:#00D8B4;
  --brand-ink:#00A98C;
  --brand-soft:rgba(0,216,180,.10);
  --violet:#7A5CFF;
  --orange:#FF6A3D;
  --ink:#0B0E12;
  --ink-2:#14181D;
  --ink-3:#0E1116;
  --bg:#F5F7F8;
  --card:#FFFFFF;
  --line:#E6EAEF;
  --text:#101828;
  --muted:#5A6572;
  --faint:#8A94A0;
  --ok:#22C55E;
  --warn:#F5A524;
  --err:#FF5A5A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(16,24,40,.04);
  --sh2:0 8px 24px rgba(16,24,40,.06);
  --sh3:0 16px 40px rgba(16,24,40,.10);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,figcaption{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(0,216,180,.28)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh2)}
.header__inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand__mark{
  width:36px;height:36px;border-radius:10px;background:var(--ink);color:var(--brand);
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.06em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.18}
.brand__text b{font-size:15px;font-weight:700;letter-spacing:.01em}
.brand__text span{font-size:12px;color:var(--faint);letter-spacing:.02em}
.nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;transition:color .16s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;background:var(--brand);border-radius:2px;transition:width .24s var(--ease);
}
.nav__link:hover{color:var(--brand-ink)}
.nav__link:hover::after{width:60%}
.nav__link.is-active{color:var(--text);font-weight:600}
.nav__link.is-active::after{width:60%}
.nav__link.is-active::before{
  content:"";position:absolute;left:-14px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--brand);transform:translateY(-50%);
}
.header__side{display:flex;align-items:center;gap:14px;flex:none}
.header__entry{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;
  padding:8px 14px;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease);
}
.header__entry svg{width:16px;height:16px}
.header__entry:hover{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-soft)}
.menu-btn{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;position:relative;cursor:pointer;
}
.menu-btn span{position:absolute;left:11px;width:18px;height:1.5px;background:var(--text);transition:.24s var(--ease)}
.menu-btn span:nth-child(1){top:16px}
.menu-btn span:nth-child(2){top:22px}
.menu-btn.is-open span:nth-child(1){top:19px;transform:rotate(45deg)}
.menu-btn.is-open span:nth-child(2){top:19px;transform:rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:70;background:#fff;display:none;
  flex-direction:column;padding:24px 20px 20px;
}
.drawer.is-open{display:flex}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer__nav{display:flex;flex-direction:column}
.drawer__link{
  font-size:20px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(8px);
}
.drawer.is-open .drawer__link{animation:fadeUp .4s var(--ease) forwards;animation-delay:calc(var(--d) * 60ms)}
.drawer__link.is-active{color:var(--brand-ink)}
.drawer__cta{margin-top:auto;width:100%}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:14px 26px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .24s var(--ease),background .16s var(--ease),color .16s var(--ease);
}
.btn--primary{background:var(--brand);color:var(--ink)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--sh2)}
.btn--light{background:#fff;color:#07564A}
.btn--light:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn--ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- kv ---------- */
.kv{background:#fff;border-bottom:1px solid var(--line);padding:52px 0 42px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);margin-bottom:26px}
.crumbs a:hover{color:var(--brand-ink)}
.kv__inner{display:grid;grid-template-columns:3px minmax(0,1fr);gap:24px;align-items:stretch}
.kv__bar{background:var(--brand);border-radius:2px}
.kv__tag{
  display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand-ink);
  background:var(--brand-soft);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:16px;
}
.kv h1{font-size:clamp(30px,4vw,40px);line-height:1.22;font-weight:800;letter-spacing:.01em}
.kv__sub{max-width:760px;margin-top:16px;font-size:17px;color:var(--muted)}
.kv__meta{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:22px;font-size:13px;color:var(--faint)}
.kv__meta li{display:inline-flex;align-items:center;gap:8px}
.kv__meta li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand);flex:none}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.chip{
  font-size:13px;padding:7px 15px;border-radius:var(--r-pill);border:1px solid var(--line);
  color:var(--muted);background:#fff;transition:.16s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand-ink);background:var(--brand-soft)}

/* ---------- info bar ---------- */
.infobar{border-bottom:1px solid var(--line);background:var(--bg)}
.infobar__list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:28px 0}
.infobar__list li{
  display:flex;flex-direction:column;gap:2px;padding:0 26px;border-left:1px solid var(--line);
}
.infobar__list li:first-child{border-left:0;padding-left:0}
.infobar__list b{font-size:20px;font-weight:700;letter-spacing:-.01em}
.infobar__list span{font-size:13px;color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:.01em}
.sec-head p{margin-top:14px;font-size:16px;color:var(--muted)}

/* ---------- guide layout ---------- */
.guide{display:grid;grid-template-columns:264px minmax(0,1fr);gap:56px;align-items:start}
.toc{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh1);
}
.toc__title{font-size:12px;letter-spacing:.1em;color:var(--faint);margin-bottom:14px}
.toc__nav{display:flex;flex-direction:column}
.toc__link{
  font-size:14px;color:var(--muted);padding:9px 0 9px 14px;border-left:2px solid transparent;
  transition:.16s var(--ease);
}
.toc__link:hover{color:var(--text)}
.toc__link.is-active{color:var(--brand-ink);border-left-color:var(--brand);font-weight:600}
.steps{display:flex;flex-direction:column;gap:56px}
.step{display:grid;grid-template-columns:72px minmax(0,1fr);gap:10px;scroll-margin-top:100px}
.step__no{
  font-size:48px;font-weight:800;line-height:1;letter-spacing:-.02em;
  color:rgba(0,216,180,.25);
}
.step__body h3{font-size:22px;font-weight:600;margin-bottom:12px}
.step__body p{font-size:16px;color:var(--muted)}
.dot-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.dot-list li{position:relative;padding-left:17px;font-size:15px;color:var(--muted)}
.dot-list li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--brand)}
.mini-steps{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.mini-steps span{font-size:13px;color:var(--muted);background:#F1F4F6;border-radius:var(--r-pill);padding:6px 13px}
.step__media{margin-top:22px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:#fff}
.step__media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step__media figcaption{font-size:13px;color:var(--faint);padding:10px 14px;text-align:center}

/* ---------- cards ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh1);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease);
}
.card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.card__top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px}
.card__title{font-size:18px;font-weight:600;line-height:1.45}
.tag{font-size:12px;font-weight:500;padding:4px 11px;border-radius:var(--r-pill);white-space:nowrap;flex:none}
.tag--brand{background:var(--brand-soft);color:var(--brand-ink)}
.tag--warn{background:rgba(245,165,36,.14);color:#9A6400}
.tag--err{background:rgba(255,90,90,.13);color:#C2291F}
.tag--ok{background:rgba(34,197,94,.13);color:#12803C}
.card p{font-size:15px;color:var(--muted)}
.card__action{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand-ink);
}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split__media{border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:#fff}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .24s var(--ease)}
.split__media:hover img{transform:scale(1.04)}
.split__media figcaption{font-size:13px;color:var(--faint);padding:12px 14px;text-align:center;background:#F9FBFB}
.split__body h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;letter-spacing:.01em}
.split__body > p{margin-top:14px;color:var(--muted)}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;font-size:16px;align-items:start}
.check-list svg{width:20px;height:20px;color:var(--brand-ink);margin-top:5px}

/* ---------- faq ---------- */
.faq{max-width:800px;margin:0 auto;border-top:1px solid var(--line)}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:22px 4px;font-size:17px;font-weight:600;transition:color .16s var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--brand-ink)}
.faq__icon{position:relative;width:24px;height:24px;flex:none;transition:transform .24s var(--ease)}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-ink);border-radius:2px}
.faq__icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq__icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq__item[open] .faq__icon{transform:rotate(45deg)}
.faq__answer{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- cta ---------- */
.cta{background:#00806B;color:#fff;padding:56px 0}
.cta__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:580px}
.notes{
  margin-top:34px;border:1px solid rgba(255,255,255,.24);border-radius:var(--r-img);
  padding:20px 24px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
}
.notes li{position:relative;padding-left:15px;font-size:13px;color:rgba(255,255,255,.82);line-height:1.75}
.notes li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:72px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__logo{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.logo__mark{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);color:var(--brand);
  display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.06em;
}
.footer__logo b{display:block;font-size:15px;font-weight:700}
.footer__logo i{display:block;font-size:12px;font-style:normal;color:rgba(255,255,255,.5)}
.footer__desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.site-footer h4{font-size:14px;font-weight:600;margin-bottom:14px;color:#fff}
.footer__links{display:flex;flex-direction:column}
.footer__links a{font-size:14px;line-height:2.2;color:rgba(255,255,255,.62);width:fit-content;transition:.16s var(--ease)}
.footer__links a:hover{color:var(--brand);text-decoration:underline}
.footer__contact li{font-size:14px;line-height:2.2;color:rgba(255,255,255,.62)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0 28px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:rgba(255,255,255,.42);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .guide{grid-template-columns:minmax(0,1fr);gap:32px}
  .toc{position:static}
  .toc__nav{flex-direction:row;gap:8px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .toc__link{border-left:0;border-bottom:2px solid transparent;white-space:nowrap;padding:8px 10px}
  .toc__link.is-active{border-bottom-color:var(--brand)}
  .split{grid-template-columns:minmax(0,1fr);gap:32px}
}
@media (max-width:900px){
  .nav{display:none}
  .menu-btn{display:block}
  .header__entry span{display:none}
  .header__entry{padding:8px 10px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .kv{padding:40px 0 32px}
  .kv__inner{gap:18px}
  .kv__sub{font-size:16px}
  .infobar__list{grid-template-columns:1fr 1fr;gap:24px 0;padding:24px 0}
  .infobar__list li{padding:0 18px}
  .infobar__list li:nth-child(odd){border-left:0;padding-left:0}
  .grid-2{grid-template-columns:minmax(0,1fr)}
  .steps{gap:44px}
  .step{grid-template-columns:56px minmax(0,1fr);gap:8px}
  .step__no{font-size:36px}
  .cta{padding:44px 0}
  .cta__inner{flex-direction:column;align-items:flex-start}
  .notes{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:560px){
  .step{grid-template-columns:minmax(0,1fr);gap:4px}
  .step__no{font-size:34px}
  .kv h1{font-size:30px}
  .card{padding:22px}
  .footer__grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer__bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}