/* roulang page: index */
:root{
  --ink:#0B1C2C;
  --ink-2:#12304A;
  --muted:#5B7186;
  --paper:#F5F6F2;
  --paper-2:#EDF1EC;
  --card:#FFFFFF;
  --line:#E1E7E1;
  --accent:#0FB98A;
  --accent-deep:#0A8767;
  --accent-soft:#E4F7F1;
  --coral:#F0714B;
  --coral-soft:#FDECE6;
  --radius:18px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,28,44,.05),0 10px 26px rgba(11,28,44,.06);
  --shadow-2:0 18px 44px rgba(11,28,44,.14);
  --space:clamp(44px,6vw,80px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:var(--accent-soft);color:var(--accent-deep)}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,242,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:18px;
  min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:6px;min-width:0}
.nav-left{justify-self:start}
.nav-right{justify-self:end;gap:10px}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link:hover{background:var(--accent-soft);color:var(--accent-deep)}
.nav-link:focus-visible{outline:3px solid rgba(15,185,138,.4);outline-offset:2px}
.nav-link.is-active{color:var(--accent-deep);background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(150deg,var(--accent) 0%,var(--accent-deep) 100%);
  color:#fff;font-size:19px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(10,135,103,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:19px;letter-spacing:.5px;white-space:nowrap}
.brand-text em{
  font-style:normal;font-size:11px;color:var(--muted);
  letter-spacing:.4px;white-space:nowrap;
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;
}
.nav-toggle:hover{background:var(--accent-soft);color:var(--accent-deep)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 22px 18px}
.mobile-menu a{
  display:block;padding:12px 4px;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu.is-open{display:block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:focus-visible{outline:3px solid rgba(15,185,138,.45);outline-offset:2px}
.btn-primary{background:var(--accent);color:#04241C;box-shadow:0 10px 24px rgba(15,185,138,.28)}
.btn-primary:hover{background:#12C795;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,185,138,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(15,185,138,.26)}
.btn-ghost{background:transparent;color:#EAF4F0;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-1)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%,rgba(15,185,138,.30) 0%,rgba(15,185,138,0) 62%),
    radial-gradient(800px 460px at 4% 110%,rgba(240,113,75,.20) 0%,rgba(240,113,75,0) 60%),
    linear-gradient(160deg,#0B1C2C 0%,#12304A 58%,#0E2536 100%);
  color:#F2F7F5;
  padding:clamp(46px,6vw,78px) 0 clamp(52px,6vw,84px);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:clamp(28px,4vw,52px);align-items:start;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--radius-pill);
  background:rgba(15,185,138,.16);border:1px solid rgba(15,185,138,.4);
  color:#7DE9C7;font-size:13px;letter-spacing:.6px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:#3FE0B0;box-shadow:0 0 0 4px rgba(63,224,176,.18)}
.hero h1{
  margin-top:20px;
  font-size:clamp(25px,3.1vw,40px);
  line-height:1.4;font-weight:800;letter-spacing:.4px;
  color:#FFFFFF;
}
.hero h1 .hl{color:#5DE7BF}
.hero-lead{
  margin-top:18px;max-width:640px;
  font-size:15.5px;line-height:1.95;color:#C6D8D6;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:26px}
.hero-points li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;color:#A9C3C0;
}
.hero-points li::before{content:"✓";color:#3FE0B0;font-weight:700}

.hero-panel{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:20px;
  padding:20px;
  box-shadow:var(--shadow-2);
  backdrop-filter:blur(6px);
  min-width:0;
}
.hero-panel-title{font-size:14px;color:#9FB8B5;letter-spacing:.5px}
.hero-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}
.hero-tab{
  padding:9px 8px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.05);color:#D3E4E1;
  font-size:13px;font-weight:600;text-align:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.hero-tab:hover{background:rgba(15,185,138,.22);border-color:rgba(15,185,138,.5)}
.hero-tab.is-on{background:#17D19C;color:#04241C;border-color:#17D19C}
.hero-panel-body{margin-top:16px}
.hero-pane{display:none}
.hero-pane.is-on{display:block}
.hero-pane h3{font-size:16px;font-weight:700;color:#FFFFFF;margin-bottom:8px}
.hero-pane p{font-size:14px;line-height:1.85;color:#B9CFCC}
.hero-pane ul{margin-top:12px;display:grid;gap:9px}
.hero-pane li{
  display:flex;gap:9px;align-items:flex-start;
  font-size:13.5px;color:#CBDCD9;line-height:1.7;
}
.hero-pane li span{color:#3FE0B0;font-weight:700;flex:0 0 auto}
.hero-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.2);
  font-size:12.5px;color:#93ADAA;line-height:1.7;
}

/* ---------- sections ---------- */
.section{padding:var(--space) 0}
.section-alt{background:var(--paper-2)}
.section-white{background:#fff}
.section-dark{background:linear-gradient(165deg,#0B1C2C,#12304A);color:#EAF2F0}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-kicker{
  display:inline-block;padding:5px 13px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:var(--accent-deep);
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
}
.sec-head h2{
  margin-top:14px;
  font-size:clamp(21px,2.5vw,30px);line-height:1.45;font-weight:800;letter-spacing:.3px;
}
.sec-head p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--muted)}
.section-dark .sec-head h2{color:#fff}
.section-dark .sec-head p{color:#B7CDCA}
.section-dark .sec-kicker{background:rgba(15,185,138,.18);color:#6FE5C0}

/* ---------- download ---------- */
.download-card{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(22px,3.5vw,44px);
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:clamp(22px,3.5vw,38px);
  box-shadow:var(--shadow-1);
}
.download-card h2{font-size:clamp(20px,2.3vw,27px);font-weight:800;line-height:1.45}
.download-card .dl-desc{margin-top:12px;font-size:14.5px;line-height:1.9;color:var(--muted)}
.dl-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.dl-badge{
  padding:6px 13px;border-radius:var(--radius-pill);
  background:var(--paper);border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-2);
}
.dl-actions{display:grid;gap:12px;align-content:start}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 18px;border-radius:16px;border:1px solid var(--line);
  background:#fff;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.dl-btn:hover{border-color:var(--accent);box-shadow:0 12px 26px rgba(15,185,138,.16);transform:translateY(-2px)}
.dl-btn:focus-visible{outline:3px solid rgba(15,185,138,.42);outline-offset:2px}
.dl-btn-main{display:flex;align-items:center;gap:12px;min-width:0}
.dl-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent-deep);
}
.dl-text{min-width:0}
.dl-text strong{display:block;font-size:15px;font-weight:700;line-height:1.4}
.dl-text span{display:block;font-size:12.5px;color:var(--muted);line-height:1.5}
.dl-go{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--accent-deep);
  padding:6px 12px;border-radius:var(--radius-pill);background:var(--accent-soft);
}
.dl-tip{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.75}

/* ---------- grids ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-4>*,.grid-3>*,.grid-2>*{min-width:0}

/* ---------- cards ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(11,28,44,.1);border-color:#CFE3D9}
.card-ico{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent-deep);font-weight:800;font-size:15px;
  margin-bottom:14px;
}
.card h3{font-size:16.5px;font-weight:700;line-height:1.5}
.card p{margin-top:9px;font-size:14px;line-height:1.85;color:var(--muted)}

/* ---------- ladder ---------- */
.ladder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.ladder-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-1);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.ladder-item:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(11,28,44,.1)}
.ladder-step{
  display:inline-flex;align-items:center;justify-content:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--coral-soft);color:#B8462A;font-size:12px;font-weight:700;letter-spacing:.5px;
}
.ladder-item h3{margin-top:14px;font-size:17px;font-weight:700}
.ladder-item p{margin-top:9px;font-size:14px;line-height:1.85;color:var(--muted)}
.ladder-item ul{margin-top:14px;display:grid;gap:8px}
.ladder-item li{
  position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-2);line-height:1.7;
}
.ladder-item li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* ---------- compare ---------- */
.compare{
  background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow-1);
}
.compare-row{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr) minmax(0,1fr);
  border-bottom:1px solid var(--line);
}
.compare-row:last-child{border-bottom:none}
.compare-row>div{padding:16px 18px;font-size:14px;line-height:1.75;min-width:0}
.compare-head>div{font-weight:700;font-size:13.5px;letter-spacing:.4px;color:var(--muted);background:var(--paper)}
.compare-head .c-best{background:var(--accent-soft);color:var(--accent-deep)}
.compare-topic{font-weight:700;color:var(--ink);background:#FBFCFA}
.compare-old{color:var(--muted)}
.compare-new{color:var(--ink-2);background:#F4FCF8;font-weight:500}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:14px}
.tl-item{
  display:grid;grid-template-columns:130px minmax(0,1fr);gap:18px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;
  box-shadow:var(--shadow-1);
}
.tl-time{
  display:inline-flex;align-items:center;justify-content:center;
  padding:7px 10px;border-radius:10px;background:var(--ink);color:#7DE9C7;
  font-size:13px;font-weight:700;letter-spacing:.4px;white-space:nowrap;
}
.tl-body h3{font-size:15.5px;font-weight:700}
.tl-body p{margin-top:6px;font-size:13.8px;line-height:1.8;color:var(--muted)}

/* ---------- topic list ---------- */
.topic{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  min-width:0;
}
.topic:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(11,28,44,.1);border-color:#CFE3D9}
.topic-tag{
  display:inline-block;padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--paper);border:1px solid var(--line);font-size:12px;color:var(--muted);
}
.topic h3{margin-top:12px;font-size:16px;font-weight:700}
.topic p{margin-top:8px;font-size:13.8px;line-height:1.8;color:var(--muted)}

/* ---------- notice bar ---------- */
.notice-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  background:linear-gradient(150deg,#0B1C2C,#17384F);
  border-radius:22px;padding:26px;color:#E7F1EF;
}
.notice-item{display:flex;gap:12px;min-width:0}
.notice-ico{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(240,113,75,.18);color:#FFB79F;font-weight:800;
}
.notice-item h3{font-size:14.5px;font-weight:700;line-height:1.5}
.notice-item p{margin-top:5px;font-size:13px;line-height:1.75;color:#B4CBC8}

/* ---------- category wall ---------- */
.cat-wall{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(22px,3vw,34px);
  box-shadow:var(--shadow-1);
}
.cat-wall h3{font-size:clamp(18px,2.1vw,24px);font-weight:800}
.cat-wall p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--muted);max-width:680px}
.cat-wall .cat-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.cat-wall .cat-tags span{
  padding:5px 12px;border-radius:var(--radius-pill);background:var(--paper);
  border:1px solid var(--line);font-size:12.5px;color:var(--ink-2);
}
.cat-wall .btn{white-space:nowrap}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:24px;align-items:start}
.news-list{display:grid;gap:14px}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:20px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(11,28,44,.1);border-color:#CFE3D9}
.news-item:focus-visible{outline:3px solid rgba(15,185,138,.4);outline-offset:2px}
.news-item h3{font-size:16px;font-weight:700;line-height:1.6}
.news-item p{
  margin-top:8px;font-size:13.8px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;font-size:12.5px;color:var(--muted)}
.news-meta span{
  padding:3px 10px;border-radius:var(--radius-pill);background:var(--accent-soft);color:var(--accent-deep);
}
.news-side{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--shadow-1)}
.news-side h3{font-size:16px;font-weight:800}
.news-side ul{margin-top:14px;display:grid;gap:12px}
.news-side li{min-width:0}
.news-side a{
  display:block;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;line-height:1.7;color:var(--ink-2);transition:color .18s ease;
}
.news-side li:last-child a{border-bottom:none;padding-bottom:0}
.news-side a:hover{color:var(--accent-deep)}
.news-side .side-date{display:block;margin-top:4px;font-size:12px;color:var(--muted)}
.news-more{margin-top:18px;display:flex;justify-content:flex-start}
.empty-tip{
  padding:26px;background:#fff;border:1px dashed var(--line);border-radius:16px;
  font-size:14px;color:var(--muted);
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px 22px;box-shadow:var(--shadow-1);min-width:0;
}
.step::before{
  counter-increment:step;content:counter(step);
  position:absolute;top:-16px;left:22px;
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(150deg,var(--accent),var(--accent-deep));color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
  box-shadow:0 8px 18px rgba(10,135,103,.28);
}
.step h3{margin-top:8px;font-size:16.5px;font-weight:700}
.step p{margin-top:9px;font-size:14px;line-height:1.85;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:15.5px;font-weight:700;line-height:1.6;
  transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--accent-deep);font-weight:800;font-size:19px;line-height:1;flex:0 0 auto}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{background:var(--accent-soft);color:var(--accent-deep)}
.faq-item summary:focus-visible{outline:3px solid rgba(15,185,138,.4);outline-offset:-3px}
.faq-body{padding:0 20px 20px;font-size:14px;line-height:1.9;color:var(--muted)}

/* ---------- final cta ---------- */
.final-cta{
  border-radius:24px;padding:clamp(26px,4vw,46px);
  background:
    radial-gradient(700px 320px at 88% 0%,rgba(15,185,138,.34) 0%,rgba(15,185,138,0) 62%),
    linear-gradient(150deg,#0B1C2C,#153A52);
  color:#EDF6F4;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(22px,3.5vw,42px);align-items:center;
}
.final-cta h2{font-size:clamp(20px,2.4vw,28px);font-weight:800;line-height:1.45}
.final-cta p{margin-top:12px;font-size:14.5px;line-height:1.9;color:#BCD2CF}
.final-actions{display:grid;gap:10px}
.final-actions .dl-btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.2)}
.final-actions .dl-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(15,185,138,.7)}
.final-actions .dl-text strong{color:#fff}
.final-actions .dl-text span{color:#A9C3C0}
.final-actions .dl-icon{background:rgba(15,185,138,.2);color:#6FE5C0}
.final-actions .dl-go{background:rgba(15,185,138,.2);color:#7DE9C7}

/* ---------- footer ---------- */
.site-footer{background:#08151F;color:#9FB6B4;padding:clamp(36px,5vw,58px) 0 26px;margin-top:0}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,1fr);
  gap:clamp(22px,4vw,48px);padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:18px}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.9;color:#8FA9A7;max-width:420px}
.footer-col h3{color:#E4EFED;font-size:14px;font-weight:700;letter-spacing:.6px;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#9FB6B4;transition:color .18s ease}
.footer-col a:hover{color:#5DE7BF}
.footer-risk{
  margin-top:22px;padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.05);font-size:12.5px;line-height:1.85;color:#8FA9A7;
}
.footer-bottom{
  margin-top:22px;display:flex;flex-wrap:wrap;gap:10px 18px;
  justify-content:space-between;align-items:center;
  font-size:12.5px;color:#7B9492;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ladder{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .notice-bar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:1fr}
  .download-card{grid-template-columns:1fr}
  .final-cta{grid-template-columns:1fr}
  .cat-wall{grid-template-columns:1fr}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-wrap{grid-template-columns:1fr auto;min-height:66px}
  .nav-left{display:none}
  .nav-right .nav-link,.nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .brand{justify-self:start}
  .brand-text em{display:none}
}
@media (max-width:768px){
  .compare-row{grid-template-columns:1fr}
  .compare-head{display:none}
  .compare-topic{background:var(--paper);font-size:13px}
  .compare-old::before{content:"零散渠道：";font-weight:700;color:var(--muted)}
  .compare-new::before{content:"站内整理：";font-weight:700;color:var(--accent-deep)}
  .tl-item{grid-template-columns:1fr;gap:10px}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  .grid-4,.grid-3,.grid-2,.ladder,.steps,.notice-bar{grid-template-columns:1fr}
  .hero{padding-top:36px}
  .hero-actions .btn{width:100%}
  .hero-tabs{grid-template-columns:repeat(3,minmax(0,1fr))}
  .hero-tab{font-size:12px;padding:8px 4px}
  .footer-top{grid-template-columns:1fr}
  .card,.topic,.step,.ladder-item{padding:18px}
  .section{padding:38px 0}
  .dl-btn{padding:13px 14px}
  .dl-go{display:none}
}

/* roulang page: article */
:root{
  --ink:#0B1C2C;
  --ink-2:#12304A;
  --muted:#5B7186;
  --paper:#F5F6F2;
  --paper-2:#EDF1EC;
  --card:#FFFFFF;
  --line:#E1E7E1;
  --accent:#0FB98A;
  --accent-deep:#0A8767;
  --accent-soft:#E4F7F1;
  --coral:#F0714B;
  --coral-soft:#FDECE6;
  --radius:18px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,28,44,.05),0 10px 26px rgba(11,28,44,.06);
  --shadow-2:0 18px 44px rgba(11,28,44,.14);
  --space:clamp(44px,6vw,80px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,242,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;
  gap:18px;
  min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:6px;min-width:0}
.nav-left{justify-self:start}
.nav-right{justify-self:end;gap:10px}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link:hover{background:var(--accent-soft);color:var(--accent-deep)}
.nav-link:focus-visible{outline:3px solid rgba(15,185,138,.4);outline-offset:2px}
.nav-link.is-active{color:var(--accent-deep);background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(150deg,var(--accent) 0%,var(--accent-deep) 100%);
  color:#fff;font-size:19px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(10,135,103,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:19px;letter-spacing:.5px;white-space:nowrap}
.brand-text em{
  font-style:normal;font-size:11px;color:var(--muted);
  letter-spacing:.4px;white-space:nowrap;
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;
}
.nav-toggle:hover{background:var(--accent-soft);color:var(--accent-deep)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 22px 18px}
.mobile-menu a{
  display:block;padding:12px 4px;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu.is-open{display:block}
/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:focus-visible{outline:3px solid rgba(15,185,138,.45);outline-offset:2px}
.btn-primary{background:var(--accent);color:#04241C;box-shadow:0 10px 24px rgba(15,185,138,.28)}
.btn-primary:hover{background:#12C795;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,185,138,.34)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(15,185,138,.26)}
.btn-ghost{background:transparent;color:#EAF4F0;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-1)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% -20%,rgba(15,185,138,.30) 0%,rgba(15,185,138,0) 62%),
    radial-gradient(680px 380px at 2% 120%,rgba(240,113,75,.18) 0%,rgba(240,113,75,0) 60%),
    linear-gradient(160deg,#0B1C2C 0%,#12304A 60%,#0E2536 100%);
  color:#F2F7F5;
  padding:clamp(30px,4vw,48px) 0 clamp(38px,4.6vw,58px);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
}
.article-hero .site-container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#9FB8B6}
.crumb a{color:#9FB8B6;transition:color .18s ease}
.crumb a:hover{color:#5DE7BF}
.crumb .sep{color:rgba(255,255,255,.35)}
.crumb .now{color:#D8E7E4}
.article-hero h1{
  margin-top:16px;
  font-size:clamp(23px,2.7vw,36px);
  line-height:1.45;font-weight:800;letter-spacing:.3px;
  color:#FFFFFF;max-width:940px;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;color:#B9CFCC;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
}
.meta-chip strong{color:#7DE9C7;font-weight:600}
.article-hero-lead{
  margin-top:20px;max-width:820px;
  font-size:15px;line-height:1.95;color:#C6D8D6;
}
/* ---------- article shell ---------- */
.article-section{padding:var(--space) 0}
.article-section.alt{background:var(--paper-2)}
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:clamp(22px,3vw,36px);
  align-items:start;
}
.article-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:clamp(20px,3vw,34px);
  min-width:0;
}
.article-card + .article-card{margin-top:22px}
.article-body{font-size:16.5px;line-height:1.95;color:#22384C;min-width:0;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  position:relative;
  margin:34px 0 16px;padding-left:14px;
  font-size:clamp(19px,2vw,23px);line-height:1.5;font-weight:800;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent),var(--accent-deep));
}
.article-body h3{
  margin:26px 0 12px;font-size:18px;line-height:1.6;font-weight:700;color:var(--ink-2);
}
.article-body h4{margin:22px 0 10px;font-size:16.5px;font-weight:700;color:var(--ink-2)}
.article-body a{color:var(--accent-deep);border-bottom:1px solid rgba(10,135,103,.35);transition:color .18s ease,border-color .18s ease}
.article-body a:hover{color:#086453;border-color:#086453}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0;padding-left:2px}
.article-body li::marker{color:var(--accent-deep)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body img{border-radius:var(--radius-sm);margin:20px auto;box-shadow:var(--shadow-1)}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--accent-soft);border-left:4px solid var(--accent);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#0C4E3E;font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--paper-2);font-weight:700;color:var(--ink-2)}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:28px 0}
.article-empty{padding:10px 0 4px;text-align:left}
.article-empty h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:12px}
.article-empty p{color:var(--muted);margin-bottom:18px}
/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:grid;gap:18px;min-width:0}
.aside-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-1);
  padding:20px;min-width:0;
}
.aside-card h3{font-size:15px;font-weight:800;color:var(--ink);margin-bottom:14px;letter-spacing:.3px}
.aside-list li{border-bottom:1px dashed var(--line);padding:10px 0}
.aside-list li:last-child{border-bottom:none;padding-bottom:0}
.aside-list li:first-child{padding-top:0}
.aside-list a{display:flex;gap:8px;font-size:14.5px;color:var(--ink-2);line-height:1.6;transition:color .18s ease}
.aside-list a:hover{color:var(--accent-deep)}
.aside-list .dot{flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--accent)}
.aside-note{font-size:13.5px;line-height:1.85;color:var(--muted)}
.aside-dl{display:grid;gap:10px;margin-top:4px}
.aside-dl .btn{justify-content:flex-start}
/* ---------- quick cards ---------- */
.section-head{max-width:780px;margin-bottom:clamp(22px,3vw,34px)}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:var(--accent-deep);
  font-size:12.5px;font-weight:600;letter-spacing:.5px;
}
.section-head h2{margin-top:14px;font-size:clamp(21px,2.4vw,29px);line-height:1.45;font-weight:800;color:var(--ink)}
.section-head p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--muted)}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.quick-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 18px;min-width:0;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CDE7DE}
.quick-card .q-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--accent-soft);color:var(--accent-deep);
  font-size:13px;font-weight:800;
}
.quick-card h3{margin-top:12px;font-size:16px;font-weight:700;color:var(--ink);line-height:1.55}
.quick-card p{margin-top:8px;font-size:13.8px;line-height:1.85;color:var(--muted)}
/* ---------- download ---------- */
.dl-band{
  position:relative;overflow:hidden;
  background:linear-gradient(150deg,#0B1C2C 0%,#12304A 62%,#0E2536 100%);
  border-radius:22px;color:#EAF4F0;
  padding:clamp(24px,3.4vw,40px);
  box-shadow:var(--shadow-2);
}
.dl-band::after{
  content:"";position:absolute;width:340px;height:340px;right:-90px;top:-120px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,185,138,.35) 0%,rgba(15,185,138,0) 70%);
}
.dl-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:26px;align-items:center}
.dl-band h2{font-size:clamp(20px,2.3vw,27px);line-height:1.45;font-weight:800;color:#fff}
.dl-band p{margin-top:12px;font-size:14.5px;line-height:1.9;color:#B9CFCC}
.dl-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.dl-btn{
  display:flex;flex-direction:column;align-items:flex-start;gap:4px;
  padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  color:#EAF4F0;min-width:0;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.dl-btn:hover{background:rgba(15,185,138,.22);border-color:rgba(15,185,138,.65);transform:translateY(-2px)}
.dl-btn:focus-visible{outline:3px solid rgba(15,185,138,.5);outline-offset:2px}
.dl-btn strong{font-size:15px;font-weight:700;white-space:nowrap}
.dl-btn span{font-size:12px;color:#9FB8B6;letter-spacing:.3px}
/* ---------- risk ---------- */
.risk-box{
  display:flex;gap:16px;
  background:var(--coral-soft);
  border:1px solid #F8D5C8;
  border-radius:var(--radius);
  padding:20px 22px;
  min-width:0;
}
.risk-box .risk-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;
  background:#fff;color:var(--coral);font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(240,113,75,.18);
}
.risk-box h2{font-size:17px;font-weight:800;color:#8A3A22;margin-bottom:8px}
.risk-box p{font-size:14px;line-height:1.9;color:#96503C}
/* ---------- related list ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.related-card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;min-width:0;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CDE7DE}
.related-card .tag{
  display:inline-flex;padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--accent-soft);color:var(--accent-deep);font-size:12px;font-weight:600;
}
.related-card h3{margin-top:12px;font-size:16px;line-height:1.6;font-weight:700;color:var(--ink)}
.related-card p{margin-top:8px;font-size:13.8px;line-height:1.85;color:var(--muted)}
.related-card .more{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--accent-deep)}
/* ---------- footer ---------- */
.site-footer{
  background:#0A1926;color:#A9BECB;
  padding:clamp(38px,5vw,60px) 0 26px;
  margin-top:clamp(30px,4vw,50px);
}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.8fr) minmax(0,.8fr);
  gap:clamp(22px,3.4vw,44px);align-items:start;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800}
.footer-brand .brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:17px;
  background:linear-gradient(150deg,var(--accent) 0%,var(--accent-deep) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 16px rgba(10,135,103,.3);
}
.footer-desc{margin-top:14px;font-size:13.8px;line-height:1.95;color:#8FA7B5;max-width:520px}
.footer-col h3{font-size:14px;font-weight:700;color:#E7F1F6;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13.8px;color:#8FA7B5;transition:color .18s ease}
.footer-col ul li a:hover{color:#5DE7BF}
.footer-risk{
  margin-top:clamp(24px,3vw,34px);
  padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12.8px;line-height:1.95;color:#7F97A6;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12.8px;color:#6E8797;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-shell{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid}
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-inner{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:880px){
  .nav-wrap{grid-template-columns:auto 1fr auto;min-height:66px}
  .nav-left{display:none}
  .brand{justify-self:start}
  .nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .article-aside{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:768px){
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-actions{grid-template-columns:repeat(3,minmax(0,1fr))}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .article-body{font-size:16px}
  .footer-top{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  .quick-grid{grid-template-columns:minmax(0,1fr)}
  .dl-actions{grid-template-columns:minmax(0,1fr)}
  .dl-btn{flex-direction:row;align-items:center;justify-content:space-between}
  .article-hero h1{font-size:21px}
  .article-card{padding:18px 16px}
  .risk-box{flex-direction:column;gap:12px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --ink:#0B1C2C;
  --ink-2:#12304A;
  --muted:#5B7186;
  --paper:#F5F6F2;
  --paper-2:#EDF1EC;
  --card:#FFFFFF;
  --line:#E1E7E1;
  --accent:#0FB98A;
  --accent-deep:#0A8767;
  --accent-soft:#E4F7F1;
  --coral:#F0714B;
  --coral-soft:#FDECE6;
  --radius:18px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,28,44,.05),0 10px 26px rgba(11,28,44,.06);
  --shadow-2:0 18px 44px rgba(11,28,44,.14);
  --space:clamp(44px,6vw,80px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;cursor:pointer}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,242,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;gap:18px;min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:6px;min-width:0}
.nav-left{justify-self:start}
.nav-right{justify-self:end;gap:10px}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 12px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-link:hover{background:var(--accent-soft);color:var(--accent-deep)}
.nav-link:focus-visible{outline:3px solid rgba(15,185,138,.4);outline-offset:2px}
.nav-link.is-active{color:var(--accent-deep);background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;min-width:0}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(150deg,var(--accent) 0%,var(--accent-deep) 100%);
  color:#fff;font-size:19px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(10,135,103,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text strong{font-size:19px;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.4px;white-space:nowrap}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:18px;line-height:1;
}
.nav-toggle:hover{background:var(--accent-soft);color:var(--accent-deep)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 22px 18px}
.mobile-menu a{display:block;padding:12px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu.is-open{display:block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:focus-visible{outline:3px solid rgba(15,185,138,.45);outline-offset:2px}
.btn-primary{background:var(--accent);color:#04241C;box-shadow:0 10px 24px rgba(15,185,138,.28)}
.btn-primary:hover{background:#12C795;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,185,138,.34)}
.btn-ghost{background:transparent;color:#EAF4F0;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-1)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-deep);transform:translateY(-2px)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(1100px 520px at 82% -10%,rgba(15,185,138,.30) 0%,rgba(15,185,138,0) 62%),
    radial-gradient(800px 460px at 4% 110%,rgba(240,113,75,.20) 0%,rgba(240,113,75,0) 60%),
    linear-gradient(160deg,#0B1C2C 0%,#12304A 58%,#0E2536 100%);
  color:#F2F7F5;
  padding:clamp(40px,5vw,66px) 0 clamp(46px,5.5vw,76px);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 70% at 50% 40%,#000 20%,transparent 100%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:clamp(26px,4vw,52px);align-items:start;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8FB0AE;margin-bottom:18px}
.crumbs a{color:#A9C3C0}
.crumbs a:hover{color:#5DE7BF}
.crumbs span{color:#4A6B75}
.crumbs em{font-style:normal;color:#D8E7E4}
.hero h1{
  font-size:clamp(24px,3vw,38px);
  line-height:1.42;font-weight:800;letter-spacing:.3px;color:#fff;
}
.hero h1 .hl{color:#5DE7BF}
.hero-lead{margin-top:18px;max-width:660px;font-size:15.5px;line-height:1.95;color:#C6D8D6}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:24px}
.hero-points li{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:#A9C3C0}
.hero-points li::before{content:"✓";color:#3FE0B0;font-weight:700}
.hero-panel{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:20px;padding:22px;
  box-shadow:var(--shadow-2);backdrop-filter:blur(6px);min-width:0;
}
.panel-title{font-size:15px;font-weight:700;color:#fff;letter-spacing:.4px;display:flex;align-items:center;gap:8px}
.panel-title::before{content:"";width:8px;height:8px;border-radius:2px;background:#3FE0B0}
.panel-list{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.panel-list li{
  display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;
  font-size:13.5px;line-height:1.7;color:#B9CFCC;
}
.panel-list b{
  width:26px;height:26px;border-radius:8px;
  background:rgba(15,185,138,.2);color:#7DE9C7;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
}
.panel-list strong{display:block;color:#EAF6F3;font-size:14px;margin-bottom:2px}
.panel-note{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.18);
  font-size:12.5px;line-height:1.8;color:#8FB0AE;
}

/* ---------- section base ---------- */
.section{padding:var(--space) 0}
.section-alt{background:var(--paper-2)}
.section-head{max-width:780px;margin-bottom:34px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.8px;
  color:var(--accent-deep);background:var(--accent-soft);
  padding:6px 14px;border-radius:var(--radius-pill);
}
.section-head h2{
  margin-top:14px;font-size:clamp(21px,2.4vw,29px);line-height:1.5;
  font-weight:800;letter-spacing:.3px;
}
.section-head p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- topic cards ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.topic-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-1);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:10px;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE6DD}
.topic-card h3{font-size:17px;font-weight:700;line-height:1.55}
.topic-card p{font-size:14px;line-height:1.85;color:var(--muted)}
.topic-num{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent-deep);font-weight:800;font-size:14px;
}
.topic-card.is-warm .topic-num{background:var(--coral-soft);color:#C24A26}
.topic-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;padding:4px 10px;border-radius:var(--radius-pill);
  background:var(--paper-2);color:var(--ink-2);border:1px solid var(--line);
  white-space:nowrap;
}

/* ---------- split panel ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(24px,3.4vw,44px);align-items:start;
}
.split h2{font-size:clamp(21px,2.4vw,29px);line-height:1.5;font-weight:800}
.split p{margin-top:14px;font-size:15px;line-height:1.95;color:var(--muted)}
.split h3{font-size:16px;margin-top:24px;font-weight:700}
.rule-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.rule-head{
  padding:18px 22px;background:linear-gradient(160deg,#0B1C2C,#12304A);color:#fff;
}
.rule-head strong{font-size:16px;display:block}
.rule-head span{font-size:12.5px;color:#9FBAC0}
.rule-row{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;
  padding:16px 22px;border-bottom:1px solid var(--line);min-width:0;
}
.rule-row:last-child{border-bottom:none}
.rule-row dt{font-size:13.5px;font-weight:700;color:var(--accent-deep)}
.rule-row dd{margin:0;font-size:13.5px;line-height:1.8;color:var(--muted)}
.rule-row dd b{color:var(--ink);font-weight:600}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.time-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 16px;min-width:0;position:relative;
  transition:border-color .18s ease,transform .18s ease;
}
.time-item:hover{border-color:var(--accent);transform:translateY(-3px)}
.time-item time{
  display:inline-flex;font-size:13px;font-weight:800;color:var(--accent-deep);
  letter-spacing:.4px;background:var(--accent-soft);
  padding:3px 9px;border-radius:var(--radius-pill);
}
.time-item h3{margin-top:10px;font-size:14.5px;font-weight:700}
.time-item p{margin-top:6px;font-size:13px;line-height:1.75;color:var(--muted)}
.time-item.is-closed time{background:var(--coral-soft);color:#C24A26}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.step-card{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-1);min-width:0;
}
.step-card:nth-child(even){border-left-color:var(--coral)}
.step-card h3{font-size:16.5px;font-weight:700;display:flex;align-items:center;gap:8px}
.step-card h3 i{
  font-style:normal;font-size:12px;font-weight:800;color:#fff;background:var(--ink-2);
  width:22px;height:22px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;
}
.step-card p{margin-top:10px;font-size:14px;line-height:1.9;color:var(--muted)}

/* ---------- myths ---------- */
.myth-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.myth-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;min-width:0;box-shadow:var(--shadow-1);
}
.myth-item h3{font-size:15.5px;font-weight:700;color:#C24A26;display:flex;gap:8px;align-items:flex-start}
.myth-item h3::before{content:"×";font-weight:800;color:var(--coral);flex:0 0 auto}
.myth-item p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--muted)}
.myth-item p b{color:var(--ink);font-weight:600}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15.5px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:background .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:600;color:var(--accent-deep);
  flex:0 0 auto;transition:transform .2s ease;
}
.faq-item summary:hover{background:var(--accent-soft);color:var(--accent-deep)}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 22px 20px;font-size:14px;line-height:1.95;color:var(--muted)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE6DD}
.news-card h3{font-size:16px;font-weight:700;line-height:1.6;overflow-wrap:break-word}
.news-card h3 a:hover{color:var(--accent-deep)}
.news-excerpt{font-size:13.5px;line-height:1.85;color:var(--muted);overflow-wrap:break-word}
.news-meta{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:12.5px;color:#8296A5;
}
.empty-note{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
  padding:34px;text-align:center;font-size:14px;color:var(--muted);
}

/* ---------- download ---------- */
.download-band{background:linear-gradient(160deg,#0B1C2C 0%,#12304A 62%,#0E2536 100%);color:#EAF4F0}
.dl-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.95fr);
  gap:clamp(22px,3.4vw,44px);align-items:center;
}
.kicker-light{background:rgba(15,185,138,.18);color:#7DE9C7}
.dl-copy h2{margin-top:14px;font-size:clamp(21px,2.4vw,29px);line-height:1.5;font-weight:800;color:#fff}
.dl-copy p{margin-top:12px;font-size:14.5px;line-height:1.95;color:#B9CFCC;max-width:560px}
.dl-actions{display:grid;grid-template-columns:1fr;gap:12px;min-width:0}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:15px 20px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:15px;font-weight:700;min-width:0;
  transition:background .18s ease,transform .18s ease,border-color .18s ease;
}
.dl-btn span{font-size:12px;font-weight:500;color:#9FBAC0;white-space:nowrap}
.dl-btn:hover{background:rgba(15,185,138,.22);border-color:rgba(15,185,138,.55);transform:translateY(-2px)}
.dl-btn:focus-visible{outline:3px solid rgba(15,185,138,.5);outline-offset:2px}
.dl-note{margin-top:14px;font-size:12.5px;line-height:1.8;color:#8FB0AE}

/* ---------- footer ---------- */
.site-footer{background:#08131F;color:#C3D2D8;padding:clamp(40px,5vw,64px) 0 28px}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,.8fr));
  gap:32px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px;border-radius:10px}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.9;color:#9FB4BC;max-width:520px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:12px}
.footer-col li{margin-bottom:8px;font-size:14px}
.footer-col a{color:#9FB4BC;transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-risk{
  margin-top:22px;font-size:12.5px;line-height:1.9;color:#8AA0A9;
  border-left:3px solid var(--coral);padding-left:14px;
}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8AA0A9;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .split{grid-template-columns:minmax(0,1fr)}
  .dl-wrap{grid-template-columns:minmax(0,1fr)}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-top{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:860px){
  .nav-wrap{grid-template-columns:auto 1fr auto;min-height:66px}
  .brand{justify-self:start}
  .nav-side.nav-left{display:none}
  .nav-right .nav-link{display:none}
  .nav-toggle{display:inline-flex}
  .brand-text strong{font-size:17px}
  .brand-text em{font-size:10px}
}
@media (max-width:768px){
  .topic-grid{grid-template-columns:minmax(0,1fr)}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .step-grid{grid-template-columns:minmax(0,1fr)}
  .myth-list{grid-template-columns:minmax(0,1fr)}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .hero-points{gap:8px 14px}
}
@media (max-width:520px){
  .site-container{padding:0 16px}
  .timeline{grid-template-columns:minmax(0,1fr)}
  .hero-actions .btn{width:100%}
  .rule-row{grid-template-columns:minmax(0,1fr);gap:6px}
  .dl-btn{flex-direction:column;align-items:flex-start;gap:4px}
  .brand-text em{display:none}
}