/* roulang page: index */
:root{
  --ink:#161320;
  --ink-2:#221d33;
  --lime:#C9F94F;
  --mint:#35E0B0;
  --coral:#FF6A3D;
  --amber:#FFB03A;
  --violet:#7C5CFF;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E6E8E1;
  --text:#1D1F1A;
  --muted:#5C6259;
  --grad:linear-gradient(120deg,#C9F94F,#35E0B0);
  --grad-warm:linear-gradient(120deg,#FF6A3D,#FFB03A);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:28px;
  --shadow:0 8px 24px rgba(22,19,32,.06);
  --shadow-hover:0 18px 42px rgba(22,19,32,.12);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;overflow-x:hidden;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.9;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--ink);}
img{max-width:100%;display:block;}
button{font:inherit;cursor:pointer;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}
.section{padding:60px 0;}
@media(min-width:1024px){.section{padding:104px 0;}}
.section--white{background:#fff;}
.section--soft{background:var(--bg);}
.section--ink{background:var(--ink);color:#fff;}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease-out,background .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(22,19,32,.08);background:rgba(255,255,255,.97);}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(53,224,176,.3);flex:0 0 auto;
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:14px;}
.nav-link{position:relative;padding:6px 2px;font-size:15px;font-weight:500;color:#4a5046;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease-out;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.cmd-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:268px;height:42px;padding:0 12px;
  background:#F2F4EE;border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.cmd-search i{font-size:13px;color:#8b9186;}
.cmd-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--text);height:100%;
}
.cmd-search input::placeholder{color:#8b9186;font-size:14px;}
.cmd-search:focus-within{
  background:#fff;border-color:transparent;box-shadow:0 0 0 2px rgba(53,224,176,.55),0 8px 18px rgba(22,19,32,.08);
}
.kbd{
  font-size:11.5px;color:#7c8277;background:#fff;border:1px solid var(--line);
  border-radius:6px;padding:1px 5px;line-height:1.5;flex:0 0 auto;
}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:#F2F4EE;border:1px solid var(--line);color:#5c6259;font-size:15px;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.icon-btn:hover{background:#fff;color:var(--ink);transform:translateY(-2px);border-color:var(--mint);}
.icon-btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:14px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn:hover{transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}
.btn:disabled,.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn-grad{background:var(--grad);color:var(--ink);box-shadow:0 10px 24px rgba(53,224,176,.3);}
.btn-grad:hover{color:var(--ink);filter:brightness(1.04);box-shadow:0 16px 32px rgba(53,224,176,.38);}
.btn-primary{background:var(--ink);color:var(--lime);box-shadow:0 10px 22px rgba(22,19,32,.2);}
.btn-primary:hover{color:var(--lime);background:var(--ink-2);box-shadow:0 16px 30px rgba(22,19,32,.26);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34);}
.btn-ghost:hover{color:#fff;border-color:var(--lime);background:rgba(255,255,255,.08);}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{color:var(--ink);border-color:var(--mint);box-shadow:0 10px 22px rgba(22,19,32,.08);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;border-radius:16px;}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#F2F4EE;position:relative;margin-left:auto;flex:0 0 auto;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--ink);content:"";
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
@media(max-width:1079px){
  .nav-links,.cmd-search{display:none;}
  .nav-toggle{display:block;}
  .nav-tools{margin-left:auto;gap:10px;}
}
@media(max-width:520px){
  .nav-tools .icon-btn{display:none;}
  .nav-tools .btn-sm{display:none;}
}
.nav-drawer{position:fixed;inset:0;z-index:120;pointer-events:none;}
.nav-drawer .drawer-mask{
  position:absolute;inset:0;background:rgba(22,19,32,.5);opacity:0;transition:opacity .24s ease-out;
}
.nav-drawer .drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;
  padding:24px 22px 28px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(100%);transition:transform .24s ease-out;box-shadow:-20px 0 48px rgba(22,19,32,.18);
}
.nav-drawer.is-open{pointer-events:auto;}
.nav-drawer.is-open .drawer-mask{opacity:1;}
.nav-drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#F2F4EE;color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 16px;border-radius:14px;font-size:16px;font-weight:600;color:#43493f;background:#F6F7F3;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(53,224,176,.14);color:var(--ink);}
.drawer-cta{width:100%;margin-top:auto;}

/* ============ Hero ============ */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:64px 0 76px;}
@media(min-width:1024px){.hero{padding:92px 0 116px;}}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02);}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(22,19,32,.94) 0%,rgba(22,19,32,.68) 46%,rgba(22,19,32,.9) 100%);
}
.hero-inner{position:relative;z-index:2;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(201,249,79,.12);border:1px solid rgba(201,249,79,.4);
  font-size:12.5px;font-weight:600;color:#E4FBAF;letter-spacing:.01em;
}
.hero h1{
  margin-top:22px;max-width:14em;
  font-size:clamp(30px,4.6vw,52px);line-height:1.16;font-weight:800;letter-spacing:-.01em;color:#fff;
}
.hero-sub{margin-top:18px;max-width:560px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stat{
  display:flex;align-items:baseline;gap:8px;padding:10px 16px;border-radius:14px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
}
.hero-stat b{font-size:19px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.72);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-visual{margin-top:44px;}
@media(min-width:1024px){.hero-visual{margin-top:0;}}
.hero-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);box-shadow:0 32px 64px rgba(0,0,0,.4);
}
.hero-card img{width:100%;height:300px;object-fit:cover;}
@media(min-width:768px){.hero-card img{height:360px;}}
.float-card{
  position:absolute;display:flex;align-items:center;gap:10px;
  background:#fff;color:var(--text);border-radius:var(--r-md);padding:12px 16px;
  box-shadow:0 16px 34px rgba(0,0,0,.26);
}
.float-card .fc-num{font-size:20px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.float-card .fc-label{font-size:12px;line-height:1.4;color:var(--muted);}
.float-card i{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--grad);color:var(--ink);font-size:13px;flex:0 0 auto;}
.float-a{left:14px;bottom:22px;}
.float-b{right:14px;top:22px;}
@media(min-width:1024px){
  .float-a{left:-22px;bottom:46px;}
  .float-b{right:-18px;top:40px;}
}

/* ============ 通用板块头 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px;}
@media(min-width:1024px){.sec-head{margin-bottom:52px;}}
@media(max-width:767px){.sec-head{flex-direction:column;align-items:flex-start;gap:16px;}}
.sec-tag{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:#2f6b55;background:rgba(53,224,176,.14);border:1px solid rgba(53,224,176,.34);
}
.section--ink .sec-tag{background:rgba(201,249,79,.12);border-color:rgba(201,249,79,.36);color:#E4FBAF;}
.sec-title{margin-top:14px;font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:700;letter-spacing:-.01em;}
.section--ink .sec-title{color:#fff;}
.sec-desc{margin-top:12px;max-width:660px;font-size:15.5px;line-height:1.9;color:var(--muted);}
.section--ink .sec-desc{color:rgba(255,255,255,.72);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:#1f7a5c;
  transition:color .2s ease-out;
}
.link-arrow i{transition:transform .25s ease-out;}
.link-arrow:hover{color:var(--ink);}
.link-arrow:hover i{transform:translateX(4px);}
.section--ink .link-arrow{color:var(--lime);}
.section--ink .link-arrow:hover{color:#fff;}

/* ============ 玩法 ============ */
.play-main{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--shadow);height:100%;
  transition:transform .28s ease-out,box-shadow .28s ease-out;
}
.play-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.play-main-media{position:relative;aspect-ratio:5/3;overflow:hidden;background:linear-gradient(120deg,#e9f7d6,#d6f6ea);}
.play-main-media img{width:100%;height:100%;object-fit:cover;}
.play-main-body{padding:24px 26px 28px;}
.play-main-body h3{font-size:21px;font-weight:700;line-height:1.4;}
.play-main-body p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:700;line-height:1;
}
.badge-lime{background:var(--lime);color:var(--ink);}
.badge-violet{background:rgba(124,92,255,.14);color:#5a41c9;border:1px solid rgba(124,92,255,.32);}
.badge-warm{background:var(--grad-warm);color:#fff;}
.badge-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.22);}
.play-main-media .badge{position:absolute;left:16px;top:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12.5px;color:#4a5046;background:#F2F4EE;border:1px solid var(--line);
}
.play-main .link-arrow{margin-top:20px;}
.play-side{display:grid;gap:24px;height:100%;}
@media(min-width:1024px){.play-side{grid-auto-rows:1fr;}}
.play-mini{
  display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;
  box-shadow:var(--shadow);transition:transform .28s ease-out,box-shadow .28s ease-out,border-color .28s ease-out;
}
.play-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfeede;}
.play-mini-thumb{aspect-ratio:1/1;border-radius:var(--r-md);overflow:hidden;background:linear-gradient(120deg,#e9f7d6,#d6f6ea);}
.play-mini-thumb img{width:100%;height:100%;object-fit:cover;}
.play-mini h3{font-size:16.5px;font-weight:700;line-height:1.45;}
.play-mini p{margin-top:8px;font-size:13.5px;line-height:1.75;color:var(--muted);}
@media(max-width:520px){.play-mini{grid-template-columns:1fr;}}

/* ============ 奖励 ============ */
.reward-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media(min-width:768px){.reward-grid{grid-template-columns:repeat(3,1fr);}}
.reward-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px 28px;box-shadow:var(--shadow);
  transition:transform .28s ease-out,box-shadow .28s ease-out;
}
.reward-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.reward-card.is-featured{background:var(--ink);color:#fff;border-color:transparent;box-shadow:0 22px 48px rgba(22,19,32,.28);}
@media(min-width:768px){.reward-card.is-featured{transform:translateY(-12px);}
.reward-card.is-featured:hover{transform:translateY(-16px);}}
.reward-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;}
.reward-card h3{font-size:19px;font-weight:700;line-height:1.4;}
.reward-card.is-featured h3{color:#fff;}
.reward-card p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--muted);min-height:78px;}
.reward-card.is-featured p{color:rgba(255,255,255,.72);}
.progress-meta{display:flex;align-items:baseline;justify-content:space-between;margin-top:20px;font-size:13px;color:var(--muted);}
.reward-card.is-featured .progress-meta{color:rgba(255,255,255,.66);}
.progress-meta b{font-size:17px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.reward-card.is-featured .progress-meta b{color:var(--lime);}
.progress{height:8px;border-radius:999px;background:#EDEFE8;overflow:hidden;margin-top:10px;}
.reward-card.is-featured .progress{background:rgba(255,255,255,.16);}
.progress > i{display:block;height:100%;border-radius:999px;background:var(--grad);}
.reward-card .btn{margin-top:22px;width:100%;}

/* ============ 任务进度 ============ */
.steps{display:flex;flex-wrap:wrap;gap:24px 0;margin-top:8px;}
.step{flex:1 1 200px;min-width:180px;position:relative;padding-right:24px;}
.step::after{
  content:"";position:absolute;top:7px;left:20px;right:0;height:2px;background:rgba(255,255,255,.14);
}
.step:last-child{padding-right:0;}
.step:last-child::after{display:none;}
.step.is-done::after,.step.is-running::after{background:linear-gradient(90deg,#C9F94F,#35E0B0);}
.step-dot{
  position:relative;z-index:2;width:16px;height:16px;border-radius:50%;background:#4a4657;
}
.step.is-done .step-dot{background:var(--lime);}
.step.is-running .step-dot{background:transparent;border:2px solid var(--lime);animation:pulse 1.9s ease-out infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,249,79,.45);}70%{box-shadow:0 0 0 10px rgba(201,249,79,0);}100%{box-shadow:0 0 0 0 rgba(201,249,79,0);}}
.step-name{margin-top:18px;font-size:16px;font-weight:700;color:#fff;}
.step-meta{margin-top:6px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.6);}
.step-state{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;margin-top:12px;
}
.step.is-done .step-state{background:rgba(201,249,79,.14);color:var(--lime);border:1px solid rgba(201,249,79,.36);}
.step.is-running .step-state{background:rgba(53,224,176,.14);color:var(--mint);border:1px solid rgba(53,224,176,.36);}
.step.is-todo .step-state{background:rgba(255,255,255,.07);color:rgba(255,255,255,.6);border:1px solid rgba(255,255,255,.16);}
@media(prefers-reduced-motion:reduce){
  .step.is-running .step-dot{animation:none;}
  *{transition-duration:.01ms !important;}
}

/* ============ 内容列表 ============ */
.post-grid{display:grid;gap:24px;grid-template-columns:1fr;}
@media(min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .28s ease-out,box-shadow .28s ease-out,border-color .28s ease-out;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfeede;}
.post-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(120deg,#e9f7d6,#d6f6ea);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-cat{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:999px;font-size:12px;font-weight:700;background:rgba(255,255,255,.94);color:#2f6b55;
  box-shadow:0 6px 14px rgba(22,19,32,.12);
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{font-size:17.5px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-title a:hover{color:#1f7a5c;}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#8b9186;
}
.post-foot time{font-variant-numeric:tabular-nums;}
.post-foot .link-arrow{font-size:13.5px;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;max-height:280px;padding:34px 20px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state .es-icon{
  width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
  background:var(--grad);color:var(--ink);font-size:22px;box-shadow:0 12px 26px rgba(53,224,176,.28);
}
.empty-state p{font-size:15px;color:var(--muted);}

/* ============ 数据条 ============ */
.stat-strip{display:grid;gap:18px;grid-template-columns:repeat(2,1fr);}
@media(min-width:1024px){.stat-strip{grid-template-columns:repeat(4,1fr);gap:22px;}}
.stat-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow);
  transition:transform .28s ease-out,box-shadow .28s ease-out;
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.stat-num{font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-num em{font-style:normal;color:var(--mint);}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{max-width:840px;margin:0 auto;}
.faq-list{border:0;background:transparent;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);background:#fff;
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease-out,box-shadow .25s ease-out;
}
.faq-item.is-active{border-color:rgba(53,224,176,.75);box-shadow:0 10px 26px rgba(53,224,176,.14);}
.faq-list .accordion-title{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:18px 52px 18px 22px;font-size:16px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.6;
}
.faq-list .accordion-title:hover{background:#FAFBF8;color:var(--ink);}
.faq-list .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;line-height:1;font-weight:400;color:#9aa195;
}
.faq-item.is-active .accordion-title::before{content:"–";color:var(--ink);}
.faq-num{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;display:grid;place-items:center;
  font-size:12.5px;font-weight:800;background:var(--grad);color:var(--ink);font-variant-numeric:tabular-nums;
}
.faq-list .accordion-content{
  padding:0 22px 20px 62px;border:0;background:transparent;
  font-size:15px;line-height:1.85;color:var(--muted);
}
@media(max-width:520px){
  .faq-list .accordion-content{padding-left:22px;}
}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--ink);color:#fff;padding:44px 28px;
  box-shadow:0 24px 56px rgba(22,19,32,.24);
}
@media(min-width:1024px){.cta-card{padding:64px 56px;}}
.cta-card::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,249,79,.24),rgba(201,249,79,0) 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-card h2{font-size:clamp(23px,2.9vw,32px);line-height:1.3;font-weight:700;color:#fff;max-width:15em;}
.cta-card p{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.74);max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media(max-width:767px){.cta-actions{width:100%;}.cta-actions .btn{flex:1 1 100%;}}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);
  border-radius:24px 24px 0 0;margin-top:0;padding:68px 0 0;
}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}}
.footer-brand{display:flex;align-items:center;gap:10px;}
.footer-brand .brand-name{color:#fff;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:26em;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.8);font-size:14px;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.footer-social a:hover{background:rgba(201,249,79,.16);color:var(--lime);transform:translateY(-2px);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--lime);}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.66);}
.footer-info span{display:flex;align-items:flex-start;gap:9px;line-height:1.75;}
.footer-info i{color:var(--mint);font-size:13px;margin-top:6px;flex:0 0 auto;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5);}
.footer-bottom a:hover{color:var(--lime);}

/* roulang page: article */
:root{
  --ink:#161320;
  --ink-2:#241f34;
  --lime:#C9F94F;
  --mint:#35E0B0;
  --coral:#FF6A3D;
  --amber:#FFB03A;
  --violet:#7C5CFF;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E6E8E1;
  --text:#1D1F1A;
  --muted:#5C6259;
  --grad:linear-gradient(120deg,#C9F94F,#35E0B0);
  --grad-warm:linear-gradient(120deg,#FF6A3D,#FFB03A);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-xl:28px;
  --sh-1:0 8px 24px rgba(22,19,32,.06);
  --sh-2:0 14px 36px rgba(22,19,32,.12);
  --container:1240px;
  --nav-h:72px;
}
*,*::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:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .24s ease-out,opacity .24s ease-out;}
a:hover{color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:1024px){.container{padding:0 32px;}}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .26s ease-out,background .26s ease-out;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(22,19,32,.08);}
.header-inner{
  height:var(--nav-h);
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(53,224,176,.28);
}
.brand-name{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:14px;}
.nav-link{
  position:relative;font-weight:500;font-size:15px;color:#3a3f36;padding:6px 2px;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:999px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .24s ease-out;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:9px;
  width:280px;height:42px;padding:0 12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  flex:1;border:0;outline:none;background:transparent;font-size:14px;color:var(--text);
  min-width:0;
}
.nav-search input::placeholder{color:#9aa096;}
.nav-search:focus-within{border-color:transparent;box-shadow:0 0 0 2px var(--mint),0 8px 22px rgba(53,224,176,.18);}
.kbd{
  font-size:11px;color:#8b9187;border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;background:#fafbf8;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:#3a3f36;
  transition:transform .2s ease-out,box-shadow .2s ease-out,color .2s ease-out;
}
.icon-btn:hover{transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--ink);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:14px;font-weight:600;font-size:15px;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,filter .22s ease-out;
  border:1px solid transparent;white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px;}
.btn-primary{background:var(--ink);color:var(--lime);}
.btn-primary:hover{color:var(--lime);filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 10px 24px rgba(22,19,32,.22);}
.btn-accent{background:var(--grad-warm);color:#2b1206;font-weight:700;}
.btn-accent:hover{color:#2b1206;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.28);}
.btn-outline{background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink);}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-1);color:var(--ink);}
.btn:disabled,.btn[disabled]{opacity:.5;pointer-events:none;}
.btn-block{width:100%;}
.hamburger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(22,19,32,.5);opacity:0;pointer-events:none;
  transition:opacity .24s ease-out;z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;background:#fff;z-index:80;
  transform:translateX(102%);transition:transform .24s ease-out;
  padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.nav-drawer a.drawer-link{
  padding:14px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line);color:var(--ink);
}
.nav-drawer a.drawer-link:hover{color:var(--mint);}
.drawer-cta{margin-top:20px;}
.drawer-close{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}

/* ============ 文章头 ============ */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,19,32,.62),rgba(22,19,32,.82));
}
.page-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:52px;}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.7);
}
.breadcrumb a{color:rgba(255,255,255,.7);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.breadcrumb .current{color:rgba(255,255,255,.92);}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:var(--grad);color:#161320;margin-top:22px;
}
.article-title{
  font-size:clamp(28px,4.2vw,46px);
  line-height:1.18;font-weight:800;letter-spacing:-.01em;
  margin:16px 0 0;max-width:900px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:22px;
  font-size:13.5px;color:rgba(255,255,255,.78);
}
.meta-row .num{color:var(--lime);font-weight:700;}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;height:30px;padding:0 13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);font-size:12.5px;
}
.share-row{display:flex;gap:10px;margin-left:auto;}
.share-row .icon-btn{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#fff;}
.share-row .icon-btn:hover{color:var(--lime);}

/* ============ 布局 ============ */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:92px 0;}}
.section-tight{padding:44px 0 64px;}
.article-layout{margin-top:0;}
.article-main{min-width:0;}
.article-side{min-width:0;}

/* 正文排版 */
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:26px 22px;box-shadow:var(--sh-1);
}
@media (min-width:1024px){.article-card{padding:44px 48px;}}
.article-body{max-width:820px;font-size:16px;line-height:1.92;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  font-size:24px;margin:42px 0 16px;padding-left:14px;position:relative;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:999px;background:var(--grad);
}
.article-body h3{font-size:20px;margin:32px 0 12px;font-weight:600;}
.article-body ul{list-style:none;margin:0 0 1.3em;padding:0;}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:999px;background:var(--mint);
}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 1.3em;}
.article-body li::marker{color:var(--violet);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:#f9faf5;border-left:3px solid transparent;
  border-image:var(--grad) 1;border-radius:0 var(--r-md) var(--r-md) 0;color:#3a3f36;
}
.article-body img{border-radius:14px;margin:22px 0 8px;box-shadow:var(--sh-1);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:22px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-body thead th{background:#f2f4ee;font-weight:700;color:var(--ink);}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#fbfcf8;}
.article-body a{color:#136a52;border-bottom:1px solid rgba(19,106,82,.3);}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--mint);}
.article-body code{
  background:var(--ink);color:var(--lime);border-radius:8px;padding:2px 7px;font-size:14px;
}
.article-body pre{
  background:var(--ink);color:#e9f6d6;border-radius:var(--r-md);padding:18px;overflow-x:auto;
}
.article-body pre code{background:transparent;padding:0;color:inherit;}

.empty-state{
  text-align:center;padding:56px 20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-xl);box-shadow:var(--sh-1);
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;background:var(--grad);margin:0 auto 18px;
  display:flex;align-items:center;justify-content:center;color:#161320;font-size:24px;
}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* 侧栏 */
.side-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;
  box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-title{
  font-size:16px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.side-title i{color:var(--mint);font-size:14px;}
.side-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);}
.side-post:last-child{border-bottom:0;padding-bottom:0;}
.side-post img{width:74px;height:56px;object-fit:cover;border-radius:10px;flex:0 0 auto;}
.side-post h4{font-size:14.5px;font-weight:600;line-height:1.5;margin-bottom:4px;}
.side-post h4 a:hover{color:#136a52;}
.side-post span{font-size:12px;color:var(--muted);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;border-radius:999px;
  font-size:12.5px;color:#3a3f36;background:#f4f6f0;border:1px solid var(--line);
  transition:all .22s ease-out;
}
.tag:hover{border-color:transparent;background:var(--grad);color:#161320;transform:translateY(-2px);}
.tag-violet{background:rgba(124,92,255,.1);border-color:rgba(124,92,255,.24);color:#4b34b8;}
.side-cta{
  background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:24px;text-align:center;
}
.side-cta strong{display:block;font-size:17px;margin-bottom:8px;color:#fff;}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:16px;}

/* 相关推荐 */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.block-head h2{font-size:clamp(22px,3vw,32px);}
.block-head p{color:var(--muted);font-size:14.5px;margin:8px 0 0;}
.link-more{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14.5px;color:#136a52;
}
.link-more i{transition:transform .22s ease-out;}
.link-more:hover i{transform:translateX(4px);}
.card-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid.cols-3{grid-template-columns:repeat(3,1fr);}}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;height:100%;
  transition:transform .26s ease-out,box-shadow .26s ease-out,border-color .26s ease-out;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(53,224,176,.6);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e9ece4;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-pill{
  position:absolute;left:12px;top:12px;height:26px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  background:rgba(22,19,32,.78);color:var(--lime);backdrop-filter:blur(4px);
}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17.5px;line-height:1.5;margin-bottom:10px;}
.post-body h3 a:hover{color:#136a52;}
.post-body p{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:16px;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);}

/* FAQ */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:4px 20px;
  margin-bottom:14px;transition:border-color .24s ease-out,box-shadow .24s ease-out;
}
.faq-item[open]{border-color:rgba(53,224,176,.7);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:16px 0;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .no{
  font-size:13px;font-weight:700;color:#161320;background:var(--grad);
  width:30px;height:30px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--muted);
  margin-left:auto;transition:transform .24s ease-out;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-answer{padding:0 0 18px 44px;font-size:15px;line-height:1.85;color:var(--muted);}

/* CTA 条 */
.cta-band{
  background:var(--ink);border-radius:var(--r-xl);padding:40px 28px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:var(--grad);opacity:.22;filter:blur(10px);
}
.cta-band .cta-inner{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.75);max-width:620px;font-size:15px;margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);margin-top:64px;
  border-radius:24px 24px 0 0;padding:56px 0 26px;
}
.footer-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-brand .brand-mark{background:var(--grad);}
.footer-desc{font-size:14px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.65);}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--lime);}
.footer-info{display:flex;flex-direction:column;gap:11px;font-size:14px;}
.footer-info i{color:var(--mint);margin-right:8px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.22);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);
  transition:all .22s ease-out;
}
.footer-social a:hover{border-color:transparent;background:var(--grad);color:#161320;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* 响应式 */
@media (max-width:1260px){
  .nav-search{width:220px;}
  .nav-links{gap:20px;}
}
@media (max-width:1023px){
  .nav-links,.nav-search,.header-actions .icon-btn{display:none;}
  .hamburger{display:inline-flex;}
  .header-actions{gap:10px;}
  .share-row{margin-left:0;width:100%;}
  .article-side{margin-top:26px;}
}
@media (max-width:639px){
  .header-actions .btn-primary{display:none;}
  .article-title{font-size:26px;}
  .cta-actions .btn{width:100%;}
  .faq-answer{padding-left:0;}
  .section{padding:56px 0;}
  .page-hero .container{padding-bottom:40px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#161320;
  --lime:#C9F94F;
  --mint:#35E0B0;
  --coral:#FF6A3D;
  --amber:#FFB03A;
  --violet:#7C5CFF;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --line:#E6E8E1;
  --text:#1D1F1A;
  --muted:#5C6259;
  --grad-main:linear-gradient(120deg,#C9F94F,#35E0B0);
  --grad-warm:linear-gradient(120deg,#FF6A3D,#FFB03A);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --shadow-s:0 8px 24px rgba(22,19,32,.06);
  --shadow-m:0 14px 34px rgba(22,19,32,.12);
  --shadow-l:0 22px 54px rgba(22,19,32,.16);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:64px; --sp-7:96px;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease-out,opacity .22s ease-out;}
a:hover{color:var(--coral);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.nums{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease-out,background .25s ease-out;
}
.site-header.is-scrolled{box-shadow:0 10px 28px rgba(22,19,32,.09);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--grad-main);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(53,224,176,.32);
}
.brand-mark svg{display:block;}
.brand-name{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin:0 auto 0 8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  padding:22px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:14px;
  width:0;height:2px;
  border-radius:999px;
  background:var(--grad-main);
  transform:translateX(-50%);
  transition:width .24s ease-out;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:270px;height:42px;
  padding:0 10px 0 14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.search-box i{color:var(--muted);font-size:13px;}
.search-box input{
  flex:1 1 auto;
  border:0;outline:none;
  background:transparent;
  font-size:14px;color:var(--text);
  height:100%;
  min-width:0;
}
.search-box input::placeholder{color:#9AA096;font-size:13.5px;}
.search-box:focus-within{
  border-color:transparent;
  box-shadow:0 0 0 2px rgba(53,224,176,.75),0 8px 20px rgba(22,19,32,.08);
}
.search-key{
  flex:0 0 auto;
  font-size:12px;
  color:var(--muted);
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 8px;
  letter-spacing:.02em;
}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  cursor:pointer;
  transition:transform .22s ease-out,color .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.icon-btn:hover{color:var(--ink);border-color:#cfd4c9;transform:translateY(-1px);box-shadow:var(--shadow-s);}
.nav-toggle{display:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:14px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out,border-color .22s ease-out;
}
.btn-primary{background:var(--ink);color:var(--lime);}
.btn-primary:hover{color:var(--lime);transform:translateY(-2px);box-shadow:0 14px 28px rgba(22,19,32,.28);filter:brightness(1.08);}
.btn-grad{background:var(--grad-main);color:var(--ink);}
.btn-grad:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 28px rgba(53,224,176,.34);filter:brightness(1.04);}
.btn-warm{background:var(--grad-warm);color:#fff;}
.btn-warm:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,106,61,.32);}
.btn-ghost{background:transparent;color:var(--ink);border-color:#cfd4c9;}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-s);}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost.on-dark:hover{color:var(--lime);border-color:var(--lime);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.5;pointer-events:none;}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:12px 0 20px;
}
.mobile-drawer.is-open{display:block;animation:drawerIn .22s ease-out;}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.mobile-drawer .nav-link{display:block;padding:14px 0;font-size:16px;border-bottom:1px dashed var(--line);}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .drawer-cta{margin-top:18px;}

/* ===== 分类小 Hero ===== */
.page-hero{
  position:relative;
  padding:56px 0 60px;
  color:#fff;
  background-image:linear-gradient(120deg,rgba(22,19,32,.86),rgba(22,19,32,.62)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom-left-radius:28px;
  border-bottom-right-radius:28px;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;right:-120px;top:-140px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,249,79,.28),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.66);
  margin-bottom:18px;
  position:relative;z-index:2;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{color:rgba(255,255,255,.36);}
.breadcrumb .current{color:rgba(255,255,255,.6);}
.hero-grid{display:flex;gap:40px;align-items:flex-end;position:relative;z-index:2;}
.hero-copy{flex:1 1 62%;max-width:720px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(201,249,79,.5);
  background:rgba(201,249,79,.14);
  color:var(--lime);
  font-size:12.5px;font-weight:600;
  margin-bottom:18px;
}
.hero-title{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;
  font-weight:800;
  color:#fff;
  letter-spacing:-.01em;
  margin-bottom:16px;
}
.hero-title .hl{
  background:var(--grad-main);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16.5px;
  line-height:1.85;
  color:rgba(255,255,255,.84);
  max-width:640px;
  margin-bottom:22px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 13px;
  border-radius:999px;
  font-size:12.5px;
  border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.86);
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}
.hero-side{
  flex:0 0 300px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:24px;
  padding:22px;
  backdrop-filter:blur(6px);
}
.hero-side h2{font-size:14px;font-weight:600;color:rgba(255,255,255,.72);margin-bottom:14px;letter-spacing:.02em;}
.hero-side-list li{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.16);
  font-size:14px;
  color:rgba(255,255,255,.84);
}
.hero-side-list li:last-child{border-bottom:0;padding-bottom:0;}
.hero-side-list b{color:var(--lime);font-size:15px;}
.hero-side-list span{color:rgba(255,255,255,.6);font-size:13px;}

/* ===== 通用区块 ===== */
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-ink{background:var(--ink);color:rgba(255,255,255,.82);}
.section-ink h2,.section-ink h3{color:#fff;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--muted);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:999px;background:var(--grad-main);}
.section-ink .eyebrow{color:rgba(255,255,255,.6);}
.section-title{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:14px;
}
.section-lead{font-size:16px;line-height:1.9;color:var(--muted);}
.section-ink .section-lead{color:rgba(255,255,255,.7);}

/* 数据徽章条 */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  padding:22px 20px;
  box-shadow:var(--shadow-s);
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);}
.stat-value{
  font-size:30px;
  font-weight:800;
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  background:linear-gradient(120deg,#6FBF3E,#1FA98A);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:6px;
}
.stat-label{font-size:13.5px;color:var(--muted);}

/* 图文交替 */
.feature-row{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:44px;
  align-items:center;
  margin-bottom:76px;
}
.feature-row:last-child{margin-bottom:0;}
.feature-media{grid-column:1 / span 6;position:relative;}
.feature-body{grid-column:7 / span 6;}
.feature-row.is-reverse .feature-media{grid-column:7 / span 6;order:2;}
.feature-row.is-reverse .feature-body{grid-column:1 / span 6;order:1;}
.feature-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:22px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-m);
}
.feature-media .float-badge{
  position:absolute;
  left:18px;bottom:-16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:10px 16px;
  box-shadow:var(--shadow-m);
  font-size:13px;
  color:var(--muted);
}
.feature-media .float-badge b{color:var(--ink);font-size:15px;margin-right:4px;}
.feature-no{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;
  color:var(--muted);
  letter-spacing:.08em;
  margin-bottom:12px;
}
.feature-no i{
  width:26px;height:26px;border-radius:9px;
  background:var(--grad-main);
  color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-style:normal;font-weight:800;
}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.35;margin-bottom:12px;}
.feature-body p{color:var(--muted);font-size:15.5px;line-height:1.9;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;
  border-radius:999px;
  font-size:12.5px;
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--muted);
}
.tag.is-violet{background:rgba(124,92,255,.09);border-color:rgba(124,92,255,.28);color:#5B44C7;}
.tag.is-lime{background:rgba(201,249,79,.28);border-color:rgba(160,205,42,.4);color:#4C6318;}

/* 要点清单 */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px;margin-top:8px;}
.check-list li{
  display:flex;gap:12px;
  align-items:flex-start;
  font-size:15.5px;
  color:var(--muted);
  line-height:1.8;
}
.check-list .ck{
  flex:0 0 auto;
  width:24px;height:24px;margin-top:6px;
  border-radius:8px;
  background:var(--grad-main);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:11px;
}
.check-list b{color:var(--ink);font-weight:600;}

/* 步骤条 */
.step-track{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
  margin-top:8px;
}
.step-track::before{
  content:"";
  position:absolute;
  left:6%;right:6%;top:19px;
  height:2px;
  background:repeating-linear-gradient(90deg,#D8DDD0 0 10px,transparent 10px 20px);
}
.step-node{position:relative;padding-top:0;}
.step-dot{
  width:40px;height:40px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--ink);
  color:var(--lime);
  position:relative;z-index:2;
  margin-bottom:16px;
}
.step-node.is-current .step-dot{
  background:var(--grad-main);
  color:var(--ink);
  box-shadow:0 0 0 6px rgba(201,249,79,.28);
  animation:pulse 2.4s ease-out infinite;
}
.step-node.is-todo .step-dot{background:#fff;border:2px solid #D8DDD0;color:#9AA096;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 6px rgba(201,249,79,.28);}50%{box-shadow:0 0 0 12px rgba(201,249,79,.06);}}
.step-node h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step-node p{font-size:14px;color:var(--muted);line-height:1.8;}

/* 大卡网格（呼吸节奏） */
.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.mode-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:22px;
  padding:24px;
  box-shadow:var(--shadow-s);
  transition:transform .26s ease-out,box-shadow .26s ease-out,border-color .26s ease-out;
}
.mode-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#CBE59C;}
.mode-card h3{font-size:18px;font-weight:600;margin:14px 0 10px;}
.mode-card p{font-size:14.5px;color:var(--muted);line-height:1.85;}
.mode-icon{
  width:44px;height:44px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:var(--ink);font-size:17px;
}
.mode-meta{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--muted);
}
.mode-meta b{color:var(--ink);font-variant-numeric:tabular-nums;}

/* 进度块 */
.progress-wrap{margin-top:14px;}
.progress-label{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-bottom:8px;}
.progress-bar{
  height:8px;border-radius:999px;background:#E9ECE3;overflow:hidden;
}
.progress-bar span{
  display:block;height:100%;border-radius:999px;background:var(--grad-main);
}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:0 22px;
  transition:border-color .24s ease-out,box-shadow .24s ease-out;
}
.faq-item[open]{border-color:#BEE38C;box-shadow:var(--shadow-s);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;gap:14px;
  padding:20px 0;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-no{
  flex:0 0 auto;
  font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
  background:var(--grad-main);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.faq-item summary .plus{
  margin-left:auto;flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:14px;
  transition:transform .24s ease-out,border-color .24s ease-out,color .24s ease-out;
}
.faq-item[open] summary .plus{transform:rotate(45deg);border-color:#BEE38C;color:var(--ink);}
.faq-answer{padding:0 0 22px 40px;font-size:15px;line-height:1.85;color:var(--muted);}

/* CTA 条 */
.cta-band{
  position:relative;
  background:var(--ink);
  border-radius:28px;
  padding:52px 48px;
  overflow:hidden;
  color:rgba(255,255,255,.8);
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:36px;
  align-items:center;
}
.cta-band::after{
  content:"";
  position:absolute;right:-90px;bottom:-120px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,176,.32),transparent 70%);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:14px;line-height:1.3;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:2;}

/* 页脚 */
.site-footer{
  margin-top:0;
  background:var(--ink);
  color:rgba(255,255,255,.72);
  border-top-left-radius:24px;
  border-top-right-radius:24px;
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:9px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:11px;}
.footer-brand .brand-name{color:#fff;font-size:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:18px;max-width:300px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.72);
  transition:border-color .22s ease-out,color .22s ease-out,transform .22s ease-out;
}
.footer-social a:hover{color:var(--lime);border-color:var(--lime);transform:translateY(-2px);}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
.footer-links{display:grid;gap:11px;font-size:14px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--lime);}
.footer-info{display:grid;gap:12px;font-size:13.5px;line-height:1.7;}
.footer-info span{display:flex;gap:9px;align-items:flex-start;color:rgba(255,255,255,.7);}
.footer-info i{margin-top:5px;color:var(--mint);font-size:12px;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

@media screen and (max-width:1023px){
  .nav-links{display:none;}
  .search-box{width:200px;}
  .section{padding:64px 0;}
  .feature-row{gap:28px;margin-bottom:56px;}
  .feature-media,.feature-body,
  .feature-row.is-reverse .feature-media,
  .feature-row.is-reverse .feature-body{grid-column:1 / span 12;order:0;}
  .feature-media{order:1;}
  .feature-body{order:2;}
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .mode-grid{grid-template-columns:repeat(2,1fr);}
  .step-track{grid-template-columns:repeat(2,1fr);gap:28px;}
  .step-track::before{display:none;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media screen and (max-width:767px){
  .header-inner{gap:12px;min-height:64px;}
  .brand-name{font-size:15.5px;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .hero-grid{flex-direction:column;align-items:stretch;gap:26px;}
  .hero-side{flex:1 1 auto;}
  .page-hero{padding:36px 0 44px;border-bottom-left-radius:20px;border-bottom-right-radius:20px;}
  .check-list{grid-template-columns:1fr;}
  .mode-grid{grid-template-columns:1fr;}
  .stat-bar{grid-template-columns:repeat(2,1fr);gap:12px;}
  .step-track{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .faq-answer{padding-left:0;}
}
@media screen and (max-width:519px){
  .section{padding:52px 0;}
  .stat-bar{grid-template-columns:1fr;}
  .hero-title{font-size:28px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --ink:#161320;
  --lime:#C9F94F;
  --mint:#35E0B0;
  --coral:#FF6A3D;
  --amber:#FFB03A;
  --violet:#7C5CFF;
  --bg:#F6F7F3;
  --card:#FFFFFF;
  --border:#E6E8E1;
  --text:#1D1F1A;
  --muted:#5C6259;
  --grad:linear-gradient(120deg,#C9F94F,#35E0B0);
  --grad-warm:linear-gradient(120deg,#FF6A3D,#FFB03A);
  --r-xs:10px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --shadow-sm:0 8px 24px rgba(22,19,32,.06);
  --shadow-md:0 16px 38px rgba(22,19,32,.12);
  --shadow-lg:0 26px 60px rgba(22,19,32,.18);
  --container:1240px;
  --pad:32px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:-0.01em}
p{margin:0}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
input,select,textarea{font-family:inherit;font-size:15px}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad);width:100%}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .28s var(--ease),background .28s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(22,19,32,.09);background:rgba(255,255,255,.96)}
.nav-bar{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(53,224,176,.35);
}
.brand-name{font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-0.01em}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-link{
  position:relative;
  font-weight:500;
  font-size:15px;
  color:var(--muted);
  padding:6px 2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;border-radius:999px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:280px;height:42px;
  padding:0 12px;
  border:1px solid var(--border);
  border-radius:var(--r-sm);
  background:#fff;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.nav-search:focus-within{
  border-color:transparent;
  box-shadow:0 0 0 2px var(--mint),0 8px 20px rgba(53,224,176,.18);
}
.nav-search i{color:var(--muted);font-size:13px}
.nav-search input{
  border:0;outline:0;background:transparent;
  flex:1 1 auto;min-width:0;height:100%;
  color:var(--text);font-size:14px;
}
.nav-search input::placeholder{color:#9AA096;font-size:14px}
.kbd{
  font-size:12px;color:var(--muted);
  border:1px solid var(--border);
  border-radius:8px;
  padding:2px 7px;
  background:var(--bg);
  white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  transition:all .24s var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:transparent;box-shadow:0 0 0 2px var(--lime)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:14px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:disabled,.btn[disabled]{opacity:.5;pointer-events:none}
.btn-primary{background:var(--ink);color:var(--lime)}
.btn-primary:hover{color:var(--lime);transform:translateY(-2px);box-shadow:0 14px 28px rgba(22,19,32,.28)}
.btn-grad{background:var(--grad);color:var(--ink)}
.btn-grad:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 28px rgba(53,224,176,.35)}
.btn-warm{background:var(--grad-warm);color:#fff}
.btn-warm:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,106,61,.35)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{color:#fff;border-color:var(--lime);transform:translateY(-2px)}
.btn-outline{background:#fff;border-color:var(--border);color:var(--ink)}
.btn-outline:hover{color:var(--ink);border-color:transparent;box-shadow:0 0 0 2px var(--lime),0 10px 24px rgba(22,19,32,.08);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:12px}
.nav-cta{height:42px;padding:0 20px;border-radius:12px;font-size:14px}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--ink);
  font-size:16px;cursor:pointer;
  transition:all .24s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,249,79,.5)}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--border);
  background:#fff;
  padding:10px 0 22px;
}
.mobile-drawer.is-open{display:block}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;
  font-size:17px;font-weight:500;
  color:var(--ink);
  border-bottom:1px solid var(--border);
}
.drawer-nav a.is-active{color:var(--ink);font-weight:700}
.drawer-nav a.is-active::after{content:"●";color:var(--mint);font-size:11px}
.drawer-cta{margin-top:18px}
.drawer-cta .btn{width:100%}

/* ============ 分类小 Hero ============ */
.cat-hero{
  position:relative;
  border-radius:0 0 var(--r-xl) var(--r-xl);
  overflow:hidden;
  background:var(--ink);
  color:#fff;
  padding:64px 0 72px;
  isolation:isolate;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.72;
  z-index:-2;
}
.cat-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(22,19,32,.72) 0%,rgba(22,19,32,.55) 45%,rgba(22,19,32,.86) 100%);
  z-index:-1;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);
  margin-bottom:20px;
  flex-wrap:wrap;
}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span.sep{color:rgba(255,255,255,.32)}
.breadcrumb .current{color:rgba(255,255,255,.52)}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.18;
  font-weight:800;
  max-width:18em;
}
.cat-hero h1 em{
  font-style:normal;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  margin-top:18px;
  max-width:640px;
  font-size:16px;
  line-height:1.9;
  color:rgba(255,255,255,.82);
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:500;
  border:1px solid rgba(255,255,255,.26);
  background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.9);
  backdrop-filter:blur(6px);
}
.badge b{color:var(--lime);font-weight:700}
.badge-violet{background:rgba(124,92,255,.24);border-color:rgba(124,92,255,.5);color:#E6E0FF}
.badge-warm{background:rgba(255,106,61,.2);border-color:rgba(255,176,58,.55);color:#FFE0CE}
.badge-ink{background:#EEF1E8;border-color:var(--border);color:var(--muted)}
.badge-ink b{color:var(--ink)}
.badge-lime{background:rgba(201,249,79,.22);border-color:rgba(201,249,79,.6);color:#DFF6A6}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section-alt{background:#fff}
.section-dark{background:var(--ink);color:#fff}
.section-tight{padding:72px 0}
.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:var(--muted);
  letter-spacing:.04em;
  text-transform:none;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:999px;background:var(--grad)}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.3;
  font-weight:700;
}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:760px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.link-more i{font-size:12px;transition:transform .24s var(--ease)}
.link-more:hover i{transform:translateX(4px)}
.section-dark .section-head h2,.section-dark p{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* 统计条 */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--border);
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.stat-item{background:#fff;padding:26px 24px}
.stat-num{
  font-size:clamp(26px,3vw,34px);
  font-weight:800;
  color:var(--ink);
  line-height:1.1;
}
.stat-num .unit{font-size:15px;font-weight:600;color:var(--muted);margin-left:4px}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted)}
.stat-bar{margin-top:14px;height:8px;border-radius:999px;background:#EDEFE8;overflow:hidden}
.stat-bar i{display:block;height:100%;border-radius:999px;background:var(--grad)}

/* 层级大卡网格 */
.tier-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.tier-card{
  position:relative;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.tier-card::after{
  content:"";
  position:absolute;inset:0;
  border-radius:var(--r-xl);
  border:1px solid transparent;
  background:var(--grad) border-box;
  -webkit-mask:linear-gradient(#fff 0 0) padding-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  opacity:0;
  transition:opacity .3s var(--ease);
  pointer-events:none;
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.tier-card:hover::after{opacity:1}
.tier-card.is-featured{
  grid-column:span 2;
  flex-direction:row;
  align-items:stretch;
}
.tier-card.is-featured .tier-media{flex:0 0 46%;}
.tier-card.is-featured .tier-body{padding:34px 36px}
.tier-media{position:relative;overflow:hidden;background:linear-gradient(120deg,#DFF6A6,#9CEBD8)}
.tier-media img{width:100%;height:100%;aspect-ratio:16/9;object-fit:cover}
.tier-card.is-featured .tier-media img{aspect-ratio:auto;height:100%}
.tier-tag{
  position:absolute;top:16px;left:16px;
  height:28px;padding:0 13px;
  display:inline-flex;align-items:center;
  border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(22,19,32,.78);
  color:#fff;
  backdrop-filter:blur(6px);
}
.tier-tag.tag-warm{background:var(--grad-warm);color:#fff}
.tier-tag.tag-violet{background:rgba(124,92,255,.9);color:#fff}
.tier-tag.tag-lime{background:var(--grad);color:var(--ink)}
.tier-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1 1 auto}
.tier-body h3{font-size:21px;font-weight:600;margin-bottom:10px}
.tier-body .tier-desc{font-size:15px;line-height:1.85;color:var(--muted)}
.tier-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tier-foot{
  margin-top:auto;
  padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px dashed var(--border);
  margin-top:22px;
}
.tier-foot .req{font-size:13px;color:var(--muted)}
.tier-foot .req b{color:var(--ink);font-weight:700}

/* 时间轴 */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  margin-top:8px;
}
.tl-item{position:relative;padding-top:70px}
.tl-node{
  position:absolute;top:0;left:0;
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;
  border:2px solid var(--border);
  font-weight:700;font-size:15px;color:var(--muted);
  z-index:2;
}
.tl-item::before{
  content:"";
  position:absolute;top:25px;left:60px;right:-28px;
  height:2px;
  background-image:linear-gradient(90deg,var(--border) 0 10px,transparent 10px 20px);
  background-size:20px 2px;
  z-index:1;
}
.tl-item:last-child::before{display:none}
.tl-item.is-done .tl-node{background:var(--grad);border-color:transparent;color:var(--ink)}
.tl-item.is-active .tl-node{border-color:var(--lime);color:var(--ink);box-shadow:0 0 0 6px rgba(201,249,79,.22)}
.tl-item.is-active .tl-node::after{
  content:"";position:absolute;inset:-2px;border-radius:50%;
  border:2px solid var(--mint);
  animation:pulseRing 2.4s var(--ease) infinite;
}
@keyframes pulseRing{
  0%{transform:scale(1);opacity:.7}
  70%{transform:scale(1.35);opacity:0}
  100%{transform:scale(1.35);opacity:0}
}
.tl-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.tl-body p{font-size:14.5px;color:var(--muted);line-height:1.85}
.tl-time{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:13px;color:var(--ink);font-weight:600;
}
.tl-time i{color:var(--mint);font-size:12px}

/* 要点清单 */
.check-panel{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-xl);
  padding:38px 36px;
  box-shadow:var(--shadow-sm);
}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 30px;margin-top:26px}
.check-item{display:flex;gap:14px;align-items:flex-start}
.check-icon{
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:12px;margin-top:5px;
}
.check-item strong{display:block;font-size:15.5px;font-weight:600;color:var(--ink)}
.check-item span{display:block;font-size:14px;color:var(--muted);line-height:1.8;margin-top:2px}

/* 徽章条（深色） */
.badge-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
.strip-card{
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  padding:26px;
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
}
.strip-card:hover{transform:translateY(-4px);border-color:rgba(201,249,79,.6);background:rgba(201,249,79,.08)}
.strip-card .num{font-size:30px;font-weight:800;color:var(--lime);line-height:1.1}
.strip-card h3{margin-top:12px;font-size:17px;font-weight:600;color:#fff}
.strip-card p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.8}

/* FAQ */
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.faq-item[open]{
  border-color:transparent;
  box-shadow:0 0 0 2px var(--mint),var(--shadow-sm);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 22px;
  display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{
  flex:0 0 auto;
  font-size:13px;font-weight:700;
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.faq-item summary .chev{
  margin-left:auto;color:var(--muted);font-size:13px;
  transition:transform .26s var(--ease);
}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-answer{padding:0 22px 22px 56px;font-size:15px;line-height:1.85;color:var(--muted)}

/* CTA 条 */
.cta-band{
  position:relative;
  border-radius:var(--r-xl);
  background:var(--ink);
  color:#fff;
  padding:52px 48px;
  overflow:hidden;
  isolation:isolate;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  opacity:.28;z-index:-2;
}
.cta-band::after{
  content:"";
  position:absolute;top:-120px;right:-80px;
  width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,176,.4),transparent 68%);
  z-index:-1;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.76);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 表单（订阅/客服） */
.sub-form{display:flex;gap:12px;margin-top:26px;max-width:520px;flex-wrap:wrap}
.sub-form input{
  flex:1 1 240px;
  height:46px;
  border-radius:var(--r-sm);
  border:1px solid var(--border);
  background:#fff;
  padding:0 16px;
  color:var(--text);
  outline:0;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.sub-form input::placeholder{color:#9AA096;font-size:14px}
.sub-form input:focus{border-color:transparent;box-shadow:0 0 0 2px var(--mint),0 8px 20px rgba(53,224,176,.16)}
.form-hint{margin-top:10px;font-size:13px;color:var(--muted)}
.form-hint.is-error{color:var(--coral)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  margin-top:0;
  padding:72px 0 30px;
  border-radius:24px 24px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
}
.footer-brand .brand-name{color:#fff;font-weight:700;font-size:16px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:290px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:38px;height:38px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.74);
  transition:all .24s var(--ease);
}
.footer-social a:hover{color:var(--ink);background:var(--lime);border-color:transparent}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-links a:hover{color:var(--lime)}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.68)}
.footer-info span{display:flex;gap:9px;align-items:flex-start;line-height:1.7}
.footer-info i{color:var(--mint);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-search{width:220px}
  .nav-links{gap:20px}
}
@media (max-width:1023px){
  :root{--pad:24px}
  .nav-links,.nav-search,.icon-btn,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-bar{min-height:66px;gap:14px}
  .section{padding:72px 0}
  .tier-grid{grid-template-columns:1fr;gap:20px}
  .tier-card.is-featured{grid-column:span 1;flex-direction:column}
  .tier-card.is-featured .tier-media{flex:0 0 auto}
  .tier-card.is-featured .tier-media img{aspect-ratio:16/9;height:auto}
  .tier-card.is-featured .tier-body{padding:26px}
  .timeline{grid-template-columns:repeat(2,1fr);gap:32px 24px}
  .tl-item::before{display:none}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .check-list{grid-template-columns:1fr}
  .badge-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{padding:40px 32px}
}
@media (max-width:640px){
  :root{--pad:20px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .cat-hero{padding:44px 0 56px;border-radius:0 0 22px 22px}
  .section-head{margin-bottom:32px}
  .timeline{grid-template-columns:1fr;gap:26px}
  .tl-item{padding-top:0;padding-left:70px}
  .tl-node{top:2px}
  .stat-strip{grid-template-columns:1fr}
  .check-panel{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .sub-form .btn{width:100%}
  .tier-body{padding:22px 20px 24px}
  .tier-foot{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}