/* roulang page: index */
:root{
  --brand-900:#0B2E27;
  --brand-700:#12463A;
  --brand-500:#1B6B54;
  --brand-100:#E3EFEA;
  --accent-500:#F25C1F;
  --accent-600:#D94A12;
  --lime-400:#C9E265;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --ink:#14181A;
  --muted:#5C6461;
  --line:#DFDDD6;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 12px 32px -12px rgba(14,21,18,.18);
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-input:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent-500)}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:-.01em}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px}
@media screen and (min-width:1025px){
  .grid-container{padding-left:24px;padding-right:24px}
}
/* ---------- 顶部活动条 ---------- */
.promo-bar{
  background:var(--brand-900);
  color:#fff;
  height:auto;
  min-height:40px;
  display:flex;
  align-items:center;
  font-size:13px;
  position:relative;
  z-index:60;
}
.promo-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:40px;
  flex-wrap:nowrap;
}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(201,226,101,.14);
  color:var(--lime-400);
  border:1px solid rgba(201,226,101,.35);
  border-radius:999px;
  padding:2px 10px;
  font-size:12px;
  letter-spacing:.06em;
  white-space:nowrap;
}
.status-pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--lime-400);
  animation:pulse 1.8s infinite;
}
@keyframes pulse{0%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.75)}100%{opacity:1;transform:scale(1)}}
.promo-text{margin:0;color:#D7E3DE;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.promo-link{color:var(--lime-400);font-weight:600;white-space:nowrap}
.promo-link:hover{color:#fff}
.countdown{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:4px;
  max-width:220px;
}
.cd-cell{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:6px;
  padding:1px 7px;
}
.cd-cell b{font-size:13px;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cd-cell em{font-style:normal;font-size:10px;color:#9FB8B1;margin-left:1px}
.cd-sep{color:#6E8A82;font-size:12px}
.promo-close{
  background:transparent;border:none;color:#8FA9A2;font-size:18px;line-height:1;
  padding:4px 6px;border-radius:6px;transition:color .18s var(--ease);
}
.promo-close:hover{color:#fff}
@media screen and (max-width:1024px){
  .countdown{display:none}
  .promo-text{font-size:12px}
}
@media screen and (max-width:640px){
  .promo-link{display:none}
}
/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,245,241,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:height .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.98);
  box-shadow:var(--shadow-1);
  border-bottom-color:var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
  transition:height .2s var(--ease);
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:9px;
  background:var(--brand-900);
  color:var(--lime-400);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;letter-spacing:.02em;
  flex:0 0 auto;
}
.brand-text{
  font-weight:800;font-size:17px;color:var(--brand-900);
  letter-spacing:-.01em;white-space:nowrap;
}
.brand-text span{color:var(--brand-500);font-weight:700}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:#3C4A46;
  padding:8px 12px;border-radius:8px;white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent-500);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-900)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--brand-700);
  background:var(--brand-100);
  border-radius:999px;padding:4px 12px;
  white-space:nowrap;
}
.nav-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500)}
.hamburger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-menu{
  display:none;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
  position:sticky;top:60px;z-index:49;
}
.mobile-menu.is-open{display:block}
.mobile-menu ul{list-style:none;margin:0;padding:8px 20px 18px}
.mobile-menu li{border-bottom:1px solid var(--line)}
.mobile-menu li:last-child{border-bottom:none}
.mobile-menu a{
  display:block;padding:14px 2px;font-size:16px;font-weight:600;color:var(--brand-900);
}
.mobile-menu a:hover{color:var(--accent-500)}
@media screen and (max-width:1024px){
  .main-nav{display:none}
  .nav-badge{display:none}
  .hamburger{display:flex}
  .nav-inner{height:64px;gap:12px}
  .site-header.is-scrolled .nav-inner{height:58px}
  .brand-text{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:190px}
  .mobile-menu{top:58px}
}
@media screen and (max-width:400px){
  .brand-text{max-width:150px;font-size:14px}
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:700;line-height:1;
  border:1.5px solid transparent;text-decoration:none;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn i{font-style:normal;transition:transform .2s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -10px rgba(242,92,31,.75)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-ghost{color:var(--accent-500);padding:0;height:auto;font-weight:700;background:none}
.btn-ghost:hover{color:var(--accent-600)}
.btn-sm{height:44px;padding:0 18px;font-size:15px}
.btn-lg{height:56px;padding:0 32px;font-size:17px}
.btn-block{width:100%}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--lime-400);color:var(--brand-900);transform:translateY(-2px)}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline-light:hover{background:#fff;color:var(--brand-900);border-color:#fff;transform:translateY(-2px)}
@media screen and (max-width:640px){
  .btn{height:48px;padding:0 20px;font-size:15px}
  .btn-lg{height:52px;font-size:16px}
}
/* ---------- 通用板块 ---------- */
.section{padding:110px 0}
.section--tight{padding:88px 0}
.section--alt{background:var(--surface)}
.band-dark{background:var(--brand-900);color:#fff}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.1em;font-weight:700;
  color:var(--brand-500);text-transform:uppercase;
  margin-bottom:12px;
}
.sec-label::before{content:"";width:18px;height:2px;background:var(--accent-500);border-radius:2px}
.band-dark .sec-label{color:var(--lime-400)}
.sec-title{
  position:relative;
  font-size:clamp(26px,3.4vw,38px);
  font-weight:800;line-height:1.25;letter-spacing:-.01em;
  margin:0 0 14px;padding-left:18px;color:var(--brand-900);
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  background:var(--accent-500);border-radius:2px;
}
.band-dark .sec-title{color:#fff}
.sec-desc{color:var(--muted);font-size:16px;max-width:60ch;margin:0}
.band-dark .sec-desc{color:#A9C0B9}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.sec-head-l{max-width:64ch}
@media screen and (max-width:1024px){.section{padding:76px 0}.section--tight{padding:64px 0}}
@media screen and (max-width:640px){.section{padding:58px 0}.section--tight{padding:52px 0}.sec-head{margin-bottom:32px}}
/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:84px 0 96px;
  background:
    radial-gradient(1200px 460px at 88% -10%,rgba(27,107,84,.10),transparent 70%),
    var(--bg);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:var(--line);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-500)}
.hero-title{
  font-size:clamp(34px,5.2vw,62px);
  font-weight:900;line-height:1.1;letter-spacing:-.02em;
  margin:0 0 20px;color:var(--brand-900);
  max-width:16ch;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(180deg,transparent 62%,rgba(201,226,101,.75) 62%);
}
.hero-sub{
  font-size:17px;line-height:1.8;color:var(--muted);
  max-width:46ch;margin:0 0 32px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);padding-top:26px;gap:8px;
}
.hero-stats .stat{padding-right:14px;position:relative}
.hero-stats .stat+.stat{padding-left:18px;border-left:1px solid var(--line)}
.hero-stats .stat b{
  display:block;font-size:32px;font-weight:800;line-height:1.1;
  color:var(--brand-900);font-variant-numeric:tabular-nums;
}
.hero-stats .stat span{display:block;font-size:13px;color:var(--muted);margin-top:4px}
.hero-media{
  position:relative;border-radius:20px;overflow:hidden;
  aspect-ratio:4/3;box-shadow:var(--shadow-2);
  background:var(--brand-900);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px),
    linear-gradient(180deg,rgba(11,46,39,.12),rgba(11,46,39,.46));
}
.hero-media-card{
  position:absolute;right:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.96);
  border-radius:12px;padding:14px 18px;min-width:180px;
  box-shadow:var(--shadow-2);
}
.hero-media-card b{display:block;font-size:19px;font-weight:800;color:var(--brand-900);line-height:1.3}
.hero-media-card span{font-size:12px;color:var(--muted);letter-spacing:.04em}
.hero-media-tag{
  position:absolute;left:18px;top:18px;z-index:2;
  background:var(--lime-400);color:var(--brand-900);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:5px 12px;border-radius:999px;
}
@media screen and (max-width:1024px){
  .hero{padding:56px 0 64px}
  .hero-media{margin-top:36px;aspect-ratio:16/10}
  .hero-title{max-width:none}
}
@media screen and (max-width:640px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:18px 0}
  .hero-stats .stat:nth-child(3){padding-left:0;border-left:none}
  .hero-stats .stat:nth-child(odd){border-left:none;padding-left:0}
  .hero-stats .stat:nth-child(even){border-left:1px solid var(--line);padding-left:16px}
  .hero-stats .stat b{font-size:26px}
  .hero-actions .btn{flex:1 1 auto}
}
/* ---------- 卡片 & 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:rgba(242,92,31,.12);color:var(--accent-600)}
.badge-lime{background:var(--lime-400);color:var(--brand-900)}
.badge-dark{background:rgba(255,255,255,.12);color:#DFEDE8}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFDDD7}
.img-wrap{border-radius:var(--radius-img);overflow:hidden;background:var(--brand-100)}
.img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .img-wrap img{transform:scale(1.035)}
/* ---------- 功能分组 ---------- */
.feature-grid{margin-top:8px}
.feature-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.feature-card--tall{padding:0;overflow:hidden}
.feature-card--tall .img-wrap{border-radius:0;aspect-ratio:16/9}
.feature-card--tall .fc-body{padding:30px}
.fc-title{font-size:21px;font-weight:700;line-height:1.4;margin:14px 0 10px;color:var(--brand-900)}
.feature-card--tall .fc-title{font-size:24px}
.fc-desc{font-size:15px;line-height:1.75;color:var(--muted);margin:0 0 18px}
.fc-list{list-style:none;margin:0;padding:0}
.fc-list li{
  position:relative;padding-left:24px;font-size:15px;line-height:1.7;
  color:#3C4A46;margin-bottom:9px;
}
.fc-list li::before{
  content:"✓";position:absolute;left:0;top:0;
  color:var(--accent-500);font-weight:800;font-size:14px;
}
.feature-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.feature-stack .feature-card{flex:1}
.feature-stack .feature-card .img-wrap{aspect-ratio:16/6;margin-bottom:6px}
@media screen and (max-width:1024px){
  .feature-card--tall{margin-bottom:24px}
  .feature-stack{gap:24px}
}
/* ---------- 场景切换 ---------- */
.scene-wrap{
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:32px;align-items:stretch;
}
.scene-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.scene-item{
  text-align:left;width:100%;
  background:var(--surface);
  border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:12px;padding:18px 20px;
  transition:all .22s var(--ease);
}
.scene-item b{display:block;font-size:17px;font-weight:700;color:var(--brand-900);margin-bottom:4px}
.scene-item span{display:block;font-size:13px;color:var(--muted)}
.scene-item:hover{border-color:#CFDDD7;transform:translateX(3px)}
.scene-item.is-active{
  border-left-color:var(--accent-500);
  background:var(--brand-100);
  box-shadow:var(--shadow-1);
}
.scene-item.is-active b{color:var(--brand-700)}
.scene-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
}
.scene-panel .img-wrap{border-radius:0;aspect-ratio:16/9}
.scene-body{padding:26px 28px 30px}
.scene-body h3{font-size:20px;font-weight:700;margin:12px 0 10px;color:var(--brand-900)}
.scene-body p{font-size:15px;line-height:1.8;color:var(--muted);margin:0 0 16px}
.scene-points{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.scene-points li{position:relative;padding-left:22px;font-size:15px;color:#3C4A46}
.scene-points li::before{
  content:"";position:absolute;left:0;top:10px;
  width:8px;height:8px;border-radius:2px;background:var(--accent-500);
}
.scene-mobile{display:none}
@media screen and (max-width:1024px){
  .scene-wrap{grid-template-columns:1fr;gap:0}
  .scene-list{display:none}
  .scene-panel{display:none}
  .scene-mobile{display:block}
  .m-scene{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);margin-bottom:16px;overflow:hidden}
  .m-scene .img-wrap{border-radius:0;aspect-ratio:16/9}
  .m-scene-body{padding:22px}
  .m-scene-body h3{font-size:18px;font-weight:700;margin:10px 0 8px;color:var(--brand-900)}
  .m-scene-body p{font-size:14px;color:var(--muted);margin:0 0 12px;line-height:1.7}
}
/* ---------- 案例（深色） ---------- */
.case-quote{
  font-size:clamp(18px,2.1vw,23px);
  line-height:1.65;font-weight:600;color:#fff;
  margin:0 0 26px;max-width:56ch;
}
.case-quote::before{
  content:"“";display:block;font-size:52px;line-height:.6;
  color:var(--lime-400);margin-bottom:14px;font-family:Georgia,serif;
}
.case-source{display:flex;align-items:center;gap:14px;margin-bottom:36px}
.case-avatar{
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
  color:var(--lime-400);font-weight:800;font-size:15px;
}
.case-source div b{display:block;color:#fff;font-size:15px;font-weight:700}
.case-source div span{display:block;color:#8FA9A2;font-size:13px}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid rgba(255,255,255,.14);padding-top:28px}
.case-metrics .m b{display:block;font-size:clamp(26px,3.2vw,38px);font-weight:800;color:var(--lime-400);line-height:1.1;font-variant-numeric:tabular-nums}
.case-metrics .m span{display:block;font-size:13px;color:#A9C0B9;margin-top:6px}
.case-logos{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;
}
.case-logos span{
  font-size:13px;color:#A9C0B9;
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;padding:6px 14px;
}
.case-side{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-card);
  padding:26px;
}
.case-side h4{color:#fff;font-size:16px;font-weight:700;margin:0 0 16px}
.case-side ul{list-style:none;margin:0;padding:0}
.case-side li{
  position:relative;padding-left:20px;color:#C7D9D3;font-size:14px;line-height:1.7;margin-bottom:12px;
}
.case-side li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--lime-400)}
@media screen and (max-width:1024px){
  .case-side{margin-top:32px}
}
@media screen and (max-width:640px){
  .case-metrics{grid-template-columns:1fr;gap:16px}
}
/* ---------- 方案价格 ---------- */
.plan-grid{margin-top:8px}
.plan{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px 26px 32px;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  height:100%;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.plan.is-featured{
  border:1.5px solid var(--accent-500);
  box-shadow:var(--shadow-2);
}
.plan-flag{
  position:absolute;right:18px;top:-13px;
  background:var(--accent-500);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  padding:4px 12px;border-radius:999px;
}
.plan-name{font-size:16px;font-weight:700;color:var(--brand-500);letter-spacing:.04em;margin-bottom:10px}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:8px}
.plan-price b{font-size:38px;font-weight:800;color:var(--brand-900);line-height:1;font-variant-numeric:tabular-nums}
.plan-price span{font-size:14px;color:var(--muted)}
.plan-note{font-size:14px;color:var(--muted);margin:0 0 22px;line-height:1.7}
.plan-list{list-style:none;margin:0 0 26px;padding:0;flex:1}
.plan-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.7;margin-bottom:10px;color:#3C4A46}
.plan-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand-500);font-weight:800;font-size:14px}
.plan-list li.off{color:#9AA3A0}
.plan-list li.off::before{content:"—";color:#C2C8C5}
.plan-foot{font-size:13px;color:var(--muted);margin-top:16px}
.plan-tips{
  margin-top:28px;font-size:14px;color:var(--muted);
  border-top:1px solid var(--line);padding-top:20px;
}
@media screen and (max-width:1024px){
  .plan{margin-bottom:24px}
}
/* ---------- 资讯列表 ---------- */
.news-lead{
  display:block;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:all .22s var(--ease);
}
.news-lead:hover{border-left-color:var(--accent-500);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.news-lead .img-wrap{border-radius:0;aspect-ratio:16/9}
.news-lead-body{padding:26px 28px 30px}
.news-lead-body h3{font-size:22px;font-weight:700;line-height:1.45;margin:14px 0 12px;color:var(--brand-900)}
.news-lead:hover .news-lead-body h3{color:var(--accent-600)}
.news-lead-body p{font-size:15px;line-height:1.75;color:var(--muted);margin:0 0 18px}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-item{
  display:grid;grid-template-columns:96px 1fr;
  gap:18px;background:var(--surface);
  border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:12px;padding:16px;
  transition:all .22s var(--ease);
}
.news-item:hover{border-left-color:var(--accent-500);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.news-item .img-wrap{aspect-ratio:1/1;height:96px}
.news-item h3{font-size:17px;font-weight:700;line-height:1.5;margin:0 0 8px;color:var(--brand-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item:hover h3{color:var(--accent-600)}
.news-item p{font-size:14px;line-height:1.65;color:var(--muted);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  color:var(--muted);font-size:15px;text-align:center;padding:32px;
}
.empty-state i{font-size:26px;color:var(--brand-500)}
.news-thumb{display:block;width:96px;height:96px;border-radius:10px;overflow:hidden;background:var(--brand-100)}
.news-thumb img{width:100%;height:100%;object-fit:cover}
@media screen and (max-width:1024px){
  .news-list{margin-top:24px}
}
@media screen and (max-width:640px){
  .news-item{grid-template-columns:1fr}
  .news-item .img-wrap,.news-thumb{width:100%;height:170px;aspect-ratio:16/9}
}
/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px}
.faq-accordion{border:none;background:transparent;margin:0}
.faq-accordion .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent}
.faq-accordion .accordion-title{
  border:none;background:transparent;color:var(--ink);
  padding:22px 44px 22px 0;font-size:18px;font-weight:700;line-height:1.5;
  position:relative;transition:color .2s var(--ease);
}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:6px;top:50%;
  transform:translateY(-50%);
  font-size:24px;font-weight:400;color:var(--brand-500);
  transition:transform .2s var(--ease),color .2s var(--ease);
  padding:0;margin:0;height:auto;width:auto;background:none;border:none;
}
.faq-accordion .accordion-title:hover{color:var(--accent-600);background:transparent}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--brand-900);background:transparent}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−";color:var(--accent-500);transform:translateY(-50%) rotate(180deg)}
.faq-accordion .accordion-content{
  border:none;background:transparent;color:var(--muted);
  padding:0 46px 22px 0;font-size:15px;line-height:1.85;
}
@media screen and (max-width:1024px){
  .faq-layout{grid-template-columns:1fr;gap:12px}
  .faq-accordion .accordion-title{font-size:16px;padding:18px 40px 18px 0}
}
/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);
  border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 1px,transparent 1px 18px),
    radial-gradient(700px 320px at 12% 110%,rgba(242,92,31,.22),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;padding:86px 0;text-align:center}
.cta-inner h2{
  font-size:clamp(26px,3.6vw,42px);font-weight:900;line-height:1.25;
  color:#fff;margin:0 0 16px;letter-spacing:-.01em;
}
.cta-inner p{color:#A9C0B9;font-size:16px;margin:0 auto 32px;max-width:52ch}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
@media screen and (max-width:640px){.cta-inner{padding:60px 0}}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#A9C0B9;padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:var(--lime-400)}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 14px;max-width:32ch;color:#8FA9A2}
.footer-contact{font-size:14px;color:#C7D9D3}
.footer-contact span{display:block;margin-bottom:6px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 18px;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:11px}
.footer-col a{color:#A9C0B9;font-size:14px;display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-col a:hover{color:var(--accent-500);transform:translateX(2px)}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;
  color:#C7D9D3;font-size:15px;transition:all .2s var(--ease);
}
.footer-social a:hover{background:var(--accent-500);border-color:var(--accent-500);color:#fff;transform:translateY(-2px)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E968F;
}
@media screen and (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:640px){
  .site-footer{padding:52px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{margin-top:34px;font-size:12px}
}
/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:0;transform:none;transition:opacity .01s linear}
  .reveal.is-visible{opacity:1}
  .card:hover,.feature-card:hover,.plan:hover,.news-lead:hover,.news-item:hover,.btn:hover{transform:none}
  .status-pill .dot{animation:none}
}

/* roulang page: article */
:root{
  --brand-900:#0B2E27;
  --brand-700:#12463A;
  --brand-500:#1B6B54;
  --brand-100:#E3EFEA;
  --accent-500:#F25C1F;
  --accent-600:#D94A12;
  --lime-400:#C9E265;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --ink:#14181A;
  --muted:#5C6461;
  --line:#DFDDD6;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 12px 32px -12px rgba(14,21,18,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --band:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:inherit;color:var(--ink);margin:0 0 .6em}
p{margin:0 0 .9em}
ul,ol{margin:0 0 1em;padding-left:1.15em}
::selection{background:var(--lime-400);color:var(--brand-900)}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px}
.num{font-family:"Inter","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--brand-900);
  color:#EAF3EF;
  font-size:13px;
  min-height:40px;
}
.topbar-inner{
  display:flex;align-items:center;gap:16px;
  min-height:40px;padding:6px 0;flex-wrap:wrap;
}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(201,226,101,.14);
  border:1px solid rgba(201,226,101,.4);
  color:var(--lime-400);
  border-radius:999px;padding:2px 10px 2px 8px;
  font-size:12px;letter-spacing:.06em;white-space:nowrap;
}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--lime-400);
  animation:pulse 1.8s infinite var(--ease);
}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,226,101,.6)}70%{box-shadow:0 0 0 8px rgba(201,226,101,0)}100%{box-shadow:0 0 0 0 rgba(201,226,101,0)}}
.topbar-msg{flex:1;min-width:180px;color:#D7E6E0}
.topbar-msg a{color:var(--lime-400);border-bottom:1px solid rgba(201,226,101,.5)}
.topbar-msg a:hover{color:#fff;border-color:#fff}
.countdown{display:flex;align-items:center;gap:4px}
.countdown .cd-cell{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:8px;padding:2px 7px;min-width:38px;text-align:center;
  font-size:13px;color:#fff;
}
.countdown .cd-sep{color:rgba(255,255,255,.5)}
.topbar-close{
  background:transparent;border:0;color:rgba(255,255,255,.6);
  cursor:pointer;padding:4px 6px;line-height:1;
}
.topbar-close:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  box-shadow:var(--shadow-1);
  border-bottom-color:var(--line);
  background:rgba(246,245,241,.98);
}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  height:72px;transition:height .22s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-weight:900;font-size:14px;letter-spacing:.02em;
  display:grid;place-items:center;
}
.brand-text{
  font-weight:800;font-size:17px;color:var(--brand-900);letter-spacing:-.01em;
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1}
.nav-link{
  position:relative;
  padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:600;color:#2C3633;
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--accent-500);transition:left .22s var(--ease),right .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100)}
.nav-link:hover::after{left:12px;right:12px}
.nav-link.is-active{color:var(--brand-900)}
.nav-link.is-active::after{left:12px;right:12px}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;cursor:pointer;border:1.5px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn i{transition:transform .2s var(--ease)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 18px -10px rgba(242,92,31,.9)}
.btn-primary:hover{background:var(--accent-600);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:hover i{transform:translateX(4px)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-700);color:#fff}
.btn-text{height:auto;padding:4px 0;color:var(--accent-500);font-weight:700;background:none;border:0}
.btn-text:hover{color:var(--accent-600)}
.btn-text:hover i{transform:translateX(4px)}
.btn-sm{height:42px;padding:0 16px;font-size:14px}
.nav-cta{height:44px;padding:0 18px;font-size:14.5px}
.nav-badge{
  display:inline-block;margin-left:6px;padding:1px 7px;border-radius:999px;
  background:var(--lime-400);color:var(--brand-900);font-size:11px;font-weight:800;
  vertical-align:middle;
}
.hamburger{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--brand-900);
  cursor:pointer;align-items:center;justify-content:center;
}

/* ---------- 通用板块 ---------- */
main{display:block}
.section{padding:var(--band) 0}
.section-tight{padding:56px 0}
.section-dark{
  background:var(--brand-900);color:#E7F0EC;
}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-500);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent-500)}
h2.section-title{
  position:relative;
  font-size:36px;font-weight:800;line-height:1.2;letter-spacing:-.015em;
  padding-left:16px;margin:10px 0 14px;
}
h2.section-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--accent-500);border-radius:2px;
}
.section-sub{color:var(--muted);font-size:16.5px;max-width:64ch;margin:0}
.section-dark .section-sub{color:#A9C4BA}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:14px 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent-500)}
.breadcrumb .crumb-sep{color:#B9B7AE}
.breadcrumb .crumb-current{
  color:var(--ink);font-weight:600;
  display:inline-block;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  vertical-align:bottom;
}

/* ---------- 文章头 ---------- */
.article-hero{background:var(--surface);padding:48px 0 36px;border-bottom:1px solid var(--line)}
.article-hero .badge-cat{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:700;letter-spacing:.06em;
}
.article-hero h1{
  font-size:clamp(30px,4.2vw,44px);
  font-weight:800;line-height:1.25;letter-spacing:-.02em;
  margin:18px 0 18px;max-width:26ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand-500)}
.article-cover{
  margin-top:32px;border-radius:var(--radius-img);overflow:hidden;
  box-shadow:var(--shadow-1);border:1px solid var(--line);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 阅读区 ---------- */
.reading-grid{padding:56px 0 var(--band)}
.article-body{max-width:68ch}
.article-body h2{
  font-size:26px;font-weight:800;line-height:1.3;letter-spacing:-.012em;
  position:relative;padding-left:14px;margin:40px 0 16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;
  background:var(--accent-500);border-radius:2px;
}
.article-body h3{font-size:20px;font-weight:700;margin:28px 0 12px}
.article-body p{font-size:17px;line-height:1.85;color:#22292A;margin:0 0 1em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body li{margin-bottom:.5em;line-height:1.8}
.article-body li::marker{color:var(--accent-500)}
.article-body a{color:var(--accent-500);font-weight:600;border-bottom:1px solid rgba(242,92,31,.35)}
.article-body a:hover{color:var(--brand-700);border-color:var(--brand-700)}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--brand-100);
  border-left:4px solid var(--accent-500);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--brand-900);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:22px 0 10px}
.article-body figure{margin:24px 0}
.article-body figcaption{
  font-size:13px;color:var(--muted);text-align:center;margin-top:8px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  background:var(--surface);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
}
.article-body thead th{
  background:var(--brand-900);color:#fff;font-weight:700;text-align:left;
  padding:12px 14px;font-size:14px;letter-spacing:.02em;
}
.article-body tbody td{padding:12px 14px;border-top:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#FAFAF7}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- 侧栏 ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);margin-bottom:24px;
}
.side-card h3{
  font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--accent-500)}
.toc-list{list-style:none;padding:0;margin:0}
.toc-list li{margin-bottom:6px}
.toc-list a{
  display:block;font-size:14.5px;color:#3A4340;padding:6px 10px;border-radius:8px;
  border-left:2px solid transparent;
}
.toc-list a:hover{background:var(--brand-100);color:var(--brand-700);border-left-color:var(--accent-500)}
.toc-list a.is-current{color:var(--accent-500);border-left-color:var(--accent-500);font-weight:700}
.mini-list{list-style:none;padding:0;margin:0}
.mini-list li{
  position:relative;padding:12px 0 12px 0;border-bottom:1px dashed var(--line);
}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list li::before{
  content:"";position:absolute;left:-10px;top:18px;bottom:18px;width:3px;
  background:var(--accent-500);border-radius:2px;opacity:0;transition:opacity .2s var(--ease);
}
.mini-list li:hover::before{opacity:1}
.mini-list a{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.5;display:block}
.mini-list a:hover{color:var(--accent-500)}
.mini-list .mini-meta{font-size:12.5px;color:var(--muted);margin-top:4px}
.side-cta{
  background:var(--brand-900);color:#DDEAE4;border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-cta h3{color:#fff;font-size:17px;font-weight:800;margin-bottom:8px}
.side-cta p{font-size:14px;line-height:1.7;color:#A9C4BA;margin-bottom:16px}
.side-cta .btn{width:100%;height:46px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:24px}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--accent-500);color:#fff}
.share-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.share-row .share-label{font-size:13px;color:var(--muted);margin-right:4px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--brand-700);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{color:var(--accent-500);border-color:var(--accent-500);transform:translateY(-2px)}

/* ---------- 上一篇 / 下一篇 ---------- */
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.postnav-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow-1);display:block;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.postnav-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0D9}
.postnav-card .pn-label{font-size:12.5px;color:var(--muted);letter-spacing:.06em;display:block;margin-bottom:8px}
.postnav-card .pn-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5}
.postnav-card:hover .pn-title{color:var(--accent-500)}
.postnav-card.pn-next{text-align:right}

/* ---------- 相关推荐 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0D9}
.news-card .thumb{position:relative;overflow:hidden}
.news-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.news-card:hover .thumb img{transform:scale(1.03)}
.news-card .card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  background:var(--brand-100);color:var(--brand-700);
  border-radius:999px;padding:3px 11px;font-size:12px;font-weight:700;letter-spacing:.05em;
  margin-bottom:12px;
}
.badge.accent{background:var(--lime-400);color:var(--brand-900)}
.news-card h3{font-size:19px;font-weight:700;line-height:1.45;margin:0 0 10px}
.news-card p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0 0 16px}
.news-card .card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(240px,1fr) minmax(0,1.7fr);gap:56px}
.faq-left h2{font-size:34px;font-weight:800;line-height:1.22;padding-left:16px;position:relative;margin-bottom:14px}
.faq-left h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--accent-500);border-radius:2px}
.faq-left p{color:var(--muted);font-size:15.5px;max-width:34ch}
.accordion{border:0;background:transparent}
.accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;
}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-title{
  font-size:18px;font-weight:700;color:var(--ink);
  padding:20px 44px 20px 0;border:0;background:transparent;
  transition:color .2s var(--ease);
}
.accordion-title:hover{background:transparent;color:var(--accent-500)}
.accordion-title::before{
  content:"+";right:0;left:auto;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand-500);
  transition:transform .22s var(--ease),color .2s var(--ease);
}
.accordion-item.is-active .accordion-title::before{content:"−";color:var(--accent-500)}
.accordion-content{padding:0 40px 22px 0;border:0;background:transparent;color:var(--muted);font-size:15px;line-height:1.85}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--brand-900);color:#fff;position:relative;overflow:hidden;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;background:rgba(201,226,101,.18);
}
.cta-band::before{width:1px;height:180px;left:8%;top:-40px;transform:rotate(18deg)}
.cta-band::after{width:1px;height:220px;right:12%;bottom:-60px;transform:rotate(18deg)}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding:64px 0;position:relative;z-index:1;
}
.cta-inner h2{font-size:clamp(26px,3.4vw,36px);font-weight:900;letter-spacing:-.02em;margin:0 0 8px}
.cta-inner p{color:#A9C4BA;margin:0;max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-ghost:hover{background:#fff;color:var(--brand-900);border-color:#fff}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-card);padding:40px 24px;
}
.empty-state i{font-size:26px;color:var(--brand-500)}
.empty-state p{color:var(--muted);margin:0;font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#BCD2CA;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#1B6B54,#12463A)}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14.5px;line-height:1.8;color:#9DB8AE;margin:16px 0 14px;max-width:32ch}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:#8FA9A0}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:#BCD2CA;font-size:14.5px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--accent-500);transform:translateX(2px)}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;color:#BCD2CA;
}
.footer-social a:hover{color:var(--accent-500);border-color:var(--accent-500);transform:translateY(-2px)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8FA9A0;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--band:72px}
  .hamburger{display:inline-flex}
  .main-nav{
    display:none;
    position:absolute;left:20px;right:20px;top:calc(100% + 8px);
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-2);padding:12px;flex-direction:column;align-items:stretch;gap:2px;margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15.5px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--brand-100);color:var(--brand-700)}
  .nav-wrap{position:relative}
  .nav-cta{height:42px;padding:0 14px;font-size:14px}
  .reading-grid{padding:40px 0 72px}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-left p{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-title{font-size:30px}
}
@media screen and (max-width:640px){
  :root{--band:56px}
  body{font-size:15.5px}
  .grid-container{padding-left:16px;padding-right:16px}
  .topbar-msg{font-size:12.5px}
  .countdown{display:none}
  .brand-text{font-size:15px}
  .article-hero{padding:32px 0 26px}
  .article-hero h1{font-size:26px}
  .article-body p{font-size:16px}
  .article-body h2{font-size:22px}
  .card-grid{grid-template-columns:1fr}
  .postnav{grid-template-columns:1fr}
  .postnav-card.pn-next{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{padding:48px 0}
  .faq-left h2{font-size:26px}
  .accordion-title{font-size:16.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1!important;transform:none!important}
  .status-dot{animation:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2E27;
  --brand-700:#12463A;
  --brand-500:#1B6B54;
  --brand-100:#E3EFEA;
  --accent-500:#F25C1F;
  --accent-600:#D94A12;
  --lime-400:#C9E265;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --ink:#14181A;
  --muted:#5C6461;
  --line:#DFDDD6;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 12px 32px -12px rgba(14,21,18,.18);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:72px;
  --mono:"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--accent-500)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
a:focus-visible,button:focus-visible,.btn:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent-500);
  outline-offset:2px;
  border-radius:6px;
}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 顶部活动条 ---------- */
.topbar{
  background:var(--brand-900);
  color:#fff;
  font-size:13px;
  min-height:40px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:40px;
  padding-top:4px;
  padding-bottom:4px;
}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  padding:3px 12px;
  font-size:12px;
  letter-spacing:.06em;
  white-space:nowrap;
}
.status-pill .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--lime-400);
  box-shadow:0 0 0 0 rgba(201,226,101,.7);
  animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(201,226,101,.6)}
  70%{box-shadow:0 0 0 8px rgba(201,226,101,0)}
  100%{box-shadow:0 0 0 0 rgba(201,226,101,0)}
}
.topbar-text{color:rgba(255,255,255,.82);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-text a{color:var(--lime-400);border-bottom:1px solid rgba(201,226,101,.4)}
.topbar-text a:hover{color:#fff}
.topbar-side{margin-left:auto;display:flex;align-items:center;gap:14px}
.countdown{display:flex;align-items:center;gap:4px;font-family:var(--mono);font-variant-numeric:tabular-nums}
.cd-group{display:inline-flex;align-items:baseline;gap:2px;background:rgba(255,255,255,.1);border-radius:6px;padding:2px 7px}
.cd-group b{font-size:13px;font-weight:700;color:#fff;letter-spacing:.02em}
.cd-group i{font-style:normal;font-size:10px;color:rgba(255,255,255,.6)}
.cd-sep{color:rgba(255,255,255,.35)}
.topbar-close{
  background:none;border:0;color:rgba(255,255,255,.55);cursor:pointer;
  width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.12)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,245,241,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  min-height:72px;
  transition:min-height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:60px}
.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand-700),var(--brand-900));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;letter-spacing:.04em;
  box-shadow:var(--shadow-1);
}
.brand-text{
  font-weight:800;
  font-size:17px;
  color:var(--brand-900);
  letter-spacing:-.01em;
  line-height:1.2;
}
.brand:hover .brand-text{color:var(--accent-500)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--accent-500);
  border-radius:2px;
  transition:left .22s var(--ease),right .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after,.nav-link.is-active::after{left:0;right:0}
.nav-link.is-active{color:var(--brand-700)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.badge-dot{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--muted);letter-spacing:.04em;
}
.badge-dot b{width:6px;height:6px;border-radius:50%;background:var(--lime-400);display:inline-block}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--brand-900);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-700);color:var(--brand-700)}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--brand-900);
  padding:22px 20px 32px;
  transform:translateY(-102%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-top .brand-text{color:#fff}
.drawer-close{
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.22);
  background:none;color:#fff;font-size:16px;cursor:pointer;
}
.drawer-link{
  display:block;
  color:#fff;
  font-size:19px;
  font-weight:700;
  padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-link:hover{color:var(--lime-400)}
.drawer-link.is-active{color:var(--lime-400)}
.drawer-cta{margin-top:26px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;
  border-radius:var(--r-btn);
  font-size:16px;font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
  text-align:center;
}
.btn i{transition:transform .2s var(--ease)}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(242,92,31,.95)}
.btn-primary:hover{background:var(--accent-600);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.btn-primary:hover i{transform:translateX(4px)}
.btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-700);color:#fff;transform:translateY(-2px)}
.btn-outline:hover i{transform:translateX(4px)}
.btn-ghost{background:none;border:0;color:var(--accent-500);height:auto;padding:0;font-size:15px}
.btn-ghost:hover{color:var(--accent-600)}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-sm{height:44px;padding:0 18px;font-size:15px}
.btn-block{width:100%}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--lime-400);color:var(--brand-900);transform:translateY(-2px)}
.btn-light:hover i{transform:translateX(4px)}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-title{
  position:relative;
  font-size:clamp(26px,3vw,36px);
  font-weight:800;
  line-height:1.25;
  padding-left:16px;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--accent-500);border-radius:2px;
}
.section-lead{color:var(--muted);font-size:16.5px;margin-top:14px;max-width:64ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;font-weight:700;
  color:var(--brand-500);text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand-500);border-radius:2px}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:var(--brand-100);color:var(--brand-700);
}
.tag-lime{background:var(--lime-400);color:#243018}

/* ---------- 内页 Hero ---------- */
.page-hero{
  padding:56px 0 48px;
  background:
    radial-gradient(900px 380px at 88% -10%, rgba(27,107,84,.10), transparent 70%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent-500)}
.crumbs span.sep{color:#B9B6AE}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-copy h1{
  font-size:clamp(30px,3.6vw,46px);
  font-weight:900;
  line-height:1.18;
  letter-spacing:-.02em;
  margin-top:14px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand-700)}
.hero-sub{margin-top:18px;color:var(--muted);font-size:17px;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(11,46,39,.14),rgba(11,46,39,.06));
}
.hero-media .media-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);
  border-radius:10px;padding:10px 14px;font-size:13px;color:var(--brand-900);
  font-weight:700;display:flex;align-items:center;gap:8px;
}
.hero-media .media-badge b{color:var(--accent-500);font-family:var(--mono)}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:32px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
}
.metric{min-width:120px}
.metric .num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:700;color:var(--brand-700);line-height:1.1;
}
.metric .num small{font-size:15px;font-weight:700;margin-left:2px}
.metric .label{font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- 锚点 Tab ---------- */
.tabbar{
  position:sticky;
  top:var(--header-h);
  z-index:45;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.tabbar-inner{
  display:flex;gap:10px;overflow-x:auto;padding:12px 20px;
  scrollbar-width:none;
}
.tabbar-inner::-webkit-scrollbar{display:none}
.tab{
  white-space:nowrap;
  padding:9px 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:14px;font-weight:600;
  transition:all .2s var(--ease);
}
.tab:hover{border-color:var(--brand-700);color:var(--brand-700)}
.tab.is-active{background:var(--brand-900);border-color:var(--brand-900);color:#fff}

/* ---------- 分组 ---------- */
.group{padding-bottom:78px}
.group-head{display:flex;align-items:center;gap:18px;margin-bottom:26px}
.group-num{
  font-family:var(--mono);font-size:38px;font-weight:700;color:#D6D2C7;line-height:1;
  letter-spacing:-.03em;
}
.group-head h3{font-size:22px;font-weight:800}
.group-head p{color:var(--muted);font-size:14.5px;margin-top:2px}
.feature-card{
  display:grid;grid-template-columns:1fr 1fr;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease);
}
.feature-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px)}
.feature-media{position:relative;min-height:300px}
.feature-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.feature-media::after{content:"";position:absolute;inset:0;background:rgba(11,46,39,.08)}
.feature-body{padding:34px 34px 32px}
.feature-body h4{font-size:21px;font-weight:800;line-height:1.4;margin:14px 0 12px}
.feature-body p{color:var(--muted);font-size:15.5px}
.points{margin-top:20px;display:grid;gap:11px}
.points li{display:flex;gap:11px;align-items:flex-start;font-size:15.5px;color:var(--muted);line-height:1.65}
.points li i{color:var(--accent-500);font-size:13px;margin-top:6px;flex:0 0 auto}
.feature-link{margin-top:22px;display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--accent-500)}
.feature-link i{transition:transform .2s var(--ease);font-size:13px}
.feature-link:hover{color:var(--accent-600)}
.feature-link:hover i{transform:translateX(4px)}
.mini-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.mini-item{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  padding:22px 22px 22px 24px;
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.mini-item::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:var(--accent-500);border-radius:0 3px 3px 0;
  transform:scaleY(0);transform-origin:center;
  transition:transform .22s var(--ease);
}
.mini-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.mini-item:hover::before{transform:scaleY(1)}
.mini-item h4{font-size:16.5px;font-weight:700;margin-bottom:8px;transition:color .2s var(--ease)}
.mini-item:hover h4{color:var(--brand-700)}
.mini-item p{font-size:14.5px;color:var(--muted);line-height:1.7}

/* ---------- 规格对比表 ---------- */
.spec-wrap{
  margin-top:34px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--surface);
  box-shadow:var(--shadow-1);
}
.spec-scroll{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;min-width:760px}
table.spec caption{
  caption-side:top;text-align:left;padding:20px 24px;
  font-size:15px;color:var(--muted);border-bottom:1px solid var(--line);
}
table.spec thead th{
  background:var(--brand-900);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.04em;
  text-align:left;padding:16px 24px;white-space:nowrap;
}
table.spec tbody td{
  padding:16px 24px;font-size:15px;color:var(--muted);
  border-top:1px solid var(--line);vertical-align:top;
}
table.spec tbody tr:nth-child(even){background:#FBFAF7}
table.spec tbody td:first-child{color:var(--ink);font-weight:700;white-space:nowrap}
table.spec tbody tr:hover{background:var(--brand-100)}

/* ---------- FAQ ---------- */
.faq-list{margin-top:32px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:#CFCBBF}
.faq-item.is-open{border-color:var(--brand-500);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;
  background:none;border:0;cursor:pointer;
  text-align:left;
  font-size:17.5px;font-weight:700;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-700);font-size:12px;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--accent-500);border-color:var(--accent-500);color:#fff;transform:rotate(180deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s var(--ease);
}
.faq-a-inner{padding:0 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.8;max-width:72ch}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  background:var(--brand-900);
  border-radius:20px;
  padding:56px 56px;
  color:#fff;
  overflow:hidden;
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border:1px solid rgba(255,255,255,.14);border-radius:50%;
}
.cta-band::before{width:320px;height:320px;right:-120px;top:-140px}
.cta-band::after{width:180px;height:180px;right:60px;bottom:-110px}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,34px);font-weight:900;line-height:1.25;position:relative;z-index:2}
.cta-band p{color:rgba(255,255,255,.76);margin-top:14px;max-width:56ch;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;position:relative;z-index:2}
.cta-notes{
  display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:26px;
  font-size:13px;color:rgba(255,255,255,.62);position:relative;z-index:2;
}
.cta-notes span{display:inline-flex;align-items:center;gap:7px}
.cta-notes i{color:var(--lime-400)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);margin-top:96px;padding:64px 0 26px}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14.5px;color:rgba(255,255,255,.66);max-width:32ch}
.footer-contact{margin-top:18px;display:grid;gap:6px;font-size:13.5px;color:rgba(255,255,255,.58)}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(255,255,255,.7);font-size:14.5px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-col a:hover{color:var(--accent-500);transform:translateX(2px)}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.75);font-size:15px;
  transition:all .2s var(--ease);
}
.footer-social a:hover{background:var(--accent-500);border-color:var(--accent-500);color:#fff;transform:translateY(-2px)}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .badge-dot{display:none}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{order:-1}
  .hero-media img{aspect-ratio:16/9}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:240px}
  .feature-media img{position:relative;min-height:240px}
  .mini-list{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:72px 0}
  .cta-band{padding:44px 34px}
  .countdown{display:none}
}
@media (max-width:640px){
  body{font-size:16px}
  .grid-container{padding-left:16px;padding-right:16px}
  .topbar-text{font-size:12.5px}
  .status-pill{font-size:11.5px;padding:3px 10px}
  .brand-text{font-size:15.5px}
  .header-cta{display:none}
  .page-hero{padding:38px 0 34px}
  .hero-copy h1{font-size:clamp(25px,7vw,32px)}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:20px}
  .metric .num{font-size:26px}
  .mini-list{grid-template-columns:1fr}
  .feature-body{padding:24px 20px 26px}
  .tabbar-inner{padding:10px 16px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .faq-q{font-size:16px;padding:17px 18px}
  .faq-a-inner{padding:0 18px 20px}
  .cta-band{padding:34px 22px;border-radius:16px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{margin-top:56px;padding-top:48px}
  table.spec thead th,table.spec tbody td{padding:13px 16px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2E27;
  --brand-700:#12463A;
  --brand-500:#1B6B54;
  --brand-100:#E3EFEA;
  --accent-500:#F25C1F;
  --accent-600:#D94A12;
  --lime-400:#C9E265;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --ink:#14181A;
  --muted:#5C6461;
  --line:#DFDDD6;
  --shadow-1:0 1px 2px rgba(14,21,18,.06);
  --shadow-2:0 12px 32px -12px rgba(14,21,18,.18);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:system-ui,-apple-system,"PingFang SC","Noto Sans SC","HarmonyOS Sans","Microsoft YaHei",sans-serif;
  --font-num:"Inter","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent-500);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.22;letter-spacing:-.01em;color:var(--brand-900);}
h1{font-weight:900;}
p{margin:0 0 .9em;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.grid-container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--brand-900);color:#D7E5E0;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section--dark p{color:#B9CFC7;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-index{
  display:inline-block;
  font-family:var(--font-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--accent-500);
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(26px,3.4vw,38px);position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;background:var(--accent-500);
}
.section-sub{font-size:16.5px;color:var(--muted);margin:0;max-width:68ch;}
.section--dark .section-sub{color:#9FBCB3;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--lime-400);
  padding:6px 14px;border-radius:999px;
  background:rgba(201,226,101,.12);
  border:1px solid rgba(201,226,101,.35);
  margin-bottom:22px;
}
.check-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin:18px 0 0;}
.check-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--muted);line-height:1.7;}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:.28em;font-size:12px;color:var(--accent-500);
}
.section--dark .check-list li{color:#B9CFC7;}

/* ---------- 顶部活动条 ---------- */
.top-bar-promo{background:var(--brand-900);color:#E9F3EF;font-size:14px;position:relative;z-index:80;}
.top-bar-promo .grid-container{display:flex;align-items:center;gap:16px;min-height:44px;padding-top:6px;padding-bottom:6px;}
.status-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--lime-400);
  background:rgba(201,226,101,.12);
  border:1px solid rgba(201,226,101,.3);
  border-radius:999px;padding:4px 12px;white-space:nowrap;
}
.status-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--lime-400);animation:pulse 1.8s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(201,226,101,.6);}70%{box-shadow:0 0 0 7px rgba(201,226,101,0);}100%{box-shadow:0 0 0 0 rgba(201,226,101,0);}}
.promo-text{color:#C9DCD5;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.promo-link{color:#FFFFFF;font-weight:700;white-space:nowrap;border-bottom:1px solid rgba(255,255,255,.4);}
.promo-link:hover{color:var(--lime-400);}
.countdown{display:flex;align-items:center;gap:6px;font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.cd-group{display:flex;align-items:baseline;gap:3px;}
.cd-num{display:inline-block;min-width:26px;text-align:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);border-radius:6px;padding:2px 4px;font-size:13px;font-weight:700;color:#FFFFFF;}
.cd-unit{font-size:11px;color:#8FA9A0;}
.cd-sep{color:#8FA9A0;font-size:12px;}
.promo-close{background:none;border:0;color:#8FA9A0;font-size:18px;line-height:1;padding:4px 6px;border-radius:6px;}
.promo-close:hover{color:#FFFFFF;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,245,241,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{background:#FFFFFF;box-shadow:var(--shadow-1);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;transition:min-height .22s var(--ease);}
.site-header.is-stuck .nav-inner{min-height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand-700);color:#FFFFFF;
  display:grid;place-items:center;font-family:var(--font-num);font-weight:800;font-size:14px;letter-spacing:.04em;
  flex:0 0 auto;
}
.brand-text{font-weight:800;color:var(--brand-900);font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand-700);}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;padding:10px 13px;font-size:15px;font-weight:600;color:var(--brand-900);border-radius:8px;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;border-radius:2px;background:var(--accent-500);
  transition:left .22s var(--ease),right .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after,.nav-link.is-active::after{left:13px;right:13px;}
.nav-link.is-active{color:var(--accent-500);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;border:1.5px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
  text-align:center;
}
.btn .arrow{transition:transform .2s var(--ease);}
.btn-primary{background:var(--accent-500);color:#FFFFFF;box-shadow:0 6px 18px -10px rgba(242,92,31,.9);}
.btn-primary:hover{background:var(--accent-600);color:#FFFFFF;box-shadow:var(--shadow-2);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-outline{background:transparent;border-color:var(--brand-700);color:var(--brand-700);}
.btn-outline:hover{background:var(--brand-700);color:#FFFFFF;}
.btn-ghost{background:transparent;border-color:transparent;color:var(--accent-500);padding:0 8px;height:auto;}
.btn-ghost:hover{color:var(--accent-600);}
.btn-ghost:hover .arrow{transform:translateX(4px);}
.btn-sm{height:44px;padding:0 18px;font-size:15px;}
.btn-lg{height:56px;padding:0 30px;font-size:17px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#FFFFFF;
  padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.nav-scrim{
  position:fixed;inset:0;background:rgba(11,46,39,.45);opacity:0;visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:55;
}
.nav-scrim.is-open{opacity:1;visibility:visible;}
body.nav-locked{overflow:hidden;}

/* ---------- 首屏 ---------- */
.cat2-hero{position:relative;overflow:hidden;background:var(--brand-900);}
.cat2-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cat2-hero-bg::after{content:"";position:absolute;inset:0;background:rgba(11,46,39,.75);}
.cat2-hero-inner{position:relative;z-index:2;padding:88px 0 150px;max-width:860px;color:#FFFFFF;}
.cat2-hero h1{
  color:#FFFFFF;font-size:clamp(32px,5vw,58px);line-height:1.1;letter-spacing:-.02em;margin-bottom:22px;max-width:20ch;
}
.cat2-hero-lead{font-size:17.5px;line-height:1.8;color:#D2E3DD;max-width:62ch;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-actions .btn-outline{border-color:rgba(255,255,255,.65);color:#FFFFFF;}
.hero-actions .btn-outline:hover{background:#FFFFFF;color:var(--brand-900);border-color:#FFFFFF;}
.hero-stats-wrap{position:relative;z-index:5;margin-top:-78px;}
.hero-stats{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.stat{padding:28px 26px;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat-value{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:32px;font-weight:800;color:var(--brand-900);line-height:1.1;letter-spacing:-.02em;
}
.stat-value em{font-style:normal;font-size:15px;font-weight:700;color:var(--brand-500);margin-left:4px;}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:8px;line-height:1.55;}

/* ---------- Z 字图文流 ---------- */
.z-flow{display:flex;flex-direction:column;}
.z-block{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;border-bottom:1px solid var(--line);
}
.z-block:last-child{border-bottom:none;}
.z-block:nth-child(even) .z-media{order:2;}
.z-block:nth-child(even) .z-copy{order:1;}
.z-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow-1);
}
.z-tag{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-700);background:var(--brand-100);border-radius:999px;padding:5px 13px;margin-bottom:16px;
}
.z-copy h3{font-size:clamp(20px,2.2vw,23px);margin-bottom:14px;}
.z-copy p{color:var(--muted);font-size:16px;}

/* ---------- 步骤条 ---------- */
.steps-scroll{overflow-x:auto;padding-bottom:6px;}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:0;min-width:760px;margin:0;}
.step{position:relative;padding-right:26px;}
.step-num{
  position:relative;z-index:2;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  font-family:var(--font-num);font-weight:800;font-size:15px;color:#FFFFFF;
}
.step.is-current .step-num{background:var(--accent-500);border-color:var(--accent-500);}
.step::before{
  content:"";position:absolute;top:23px;left:46px;right:0;height:1px;background:rgba(255,255,255,.18);
}
.step:last-child::before{display:none;}
.step h3{font-size:18px;margin:20px 0 10px;color:#FFFFFF;}
.step p{font-size:14.5px;color:#9FBCB3;margin:0;line-height:1.7;}

/* ---------- 案例卡 ---------- */
.case-list{display:flex;flex-direction:column;gap:24px;}
.case-card{
  display:grid;grid-template-columns:300px 1fr;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.case-card:hover{box-shadow:var(--shadow-2);transform:translateY(-4px);border-color:#CFCCC2;}
.case-media{position:relative;overflow:hidden;}
.case-media img{width:100%;height:100%;min-height:230px;object-fit:cover;}
.case-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;}
.case-tag{
  display:inline-block;align-self:flex-start;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-900);background:var(--lime-400);border-radius:999px;padding:5px 13px;margin-bottom:14px;
}
.case-body h3{font-size:20px;margin-bottom:12px;}
.case-body p{color:var(--muted);font-size:15.5px;margin-bottom:0;}
.case-body .check-list{margin-top:16px;}
.case-body .check-list li{font-size:14.5px;}

/* ---------- 咨询表单 ---------- */
.form-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:1fr 1.15fr;gap:0;overflow:hidden;
}
.form-intro{background:var(--brand-100);padding:48px 42px;}
.form-intro h2{font-size:clamp(24px,2.6vw,30px);position:relative;padding-left:16px;}
.form-intro h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--accent-500);}
.form-intro p{color:var(--brand-700);font-size:15.5px;}
.form-body{padding:44px 42px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;}
.field-full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:700;color:var(--brand-900);margin-bottom:8px;}
.field label .req{color:var(--accent-500);margin-left:4px;}
.field-input{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-input);
  padding:0 14px;font-size:15px;font-family:inherit;color:var(--ink);background:#FFFFFF;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
select.field-input{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235C6461' stroke-width='1.6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:38px;}
textarea.field-input{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field-input:focus,.field-input:focus-visible{border-color:var(--accent-500);box-shadow:0 0 0 3px rgba(242,92,31,.16);outline:none;}
.field-hint{font-size:13px;color:var(--muted);margin-top:8px;}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:6px;}
.form-foot .btn{flex:0 0 auto;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.faq .accordion{background:transparent;border:0;margin:0;}
.faq .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease);
}
.faq .accordion-item:hover{box-shadow:var(--shadow-2);}
.faq .accordion-title{
  position:relative;display:block;padding:20px 56px 20px 24px;
  font-size:18px;font-weight:700;color:var(--brand-900);border:0;line-height:1.5;
  transition:color .2s var(--ease);
}
.faq .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  margin:0;font-size:22px;font-weight:400;line-height:1;color:var(--accent-500);transition:transform .22s var(--ease);
}
.faq .accordion-title[aria-expanded="true"]::before{content:"−";}
.faq .accordion-title:hover,.faq .accordion-title:focus{color:var(--accent-500);background:transparent;}
.faq .accordion-content{
  padding:0 24px 22px;border:0;background:transparent;
  font-size:15px;line-height:1.85;color:var(--muted);
}
.faq .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-900);border-radius:20px;color:#FFFFFF;position:relative;overflow:hidden;
  padding:56px 56px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(201,226,101,.08);
}
.cta-band h2{color:#FFFFFF;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;position:relative;z-index:2;}
.cta-band p{color:#AFC7BF;margin:0;font-size:15.5px;position:relative;z-index:2;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
.cta-actions .btn-outline{border-color:rgba(255,255,255,.6);color:#FFFFFF;}
.cta-actions .btn-outline:hover{background:#FFFFFF;color:var(--brand-900);border-color:#FFFFFF;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C8D8D2;padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px;}
.footer-brand .brand-text{color:#FFFFFF;font-size:17px;white-space:normal;}
.footer-brand .brand-mark{background:var(--accent-500);}
.footer-brand p{font-size:14.5px;color:#9FBAB1;margin-top:16px;max-width:34ch;}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:#9FBAB1;margin-top:12px;}
.footer-col h4{color:#FFFFFF;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin:0;padding:0;}
.footer-col a{color:#C8D8D2;font-size:14.5px;display:inline-block;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-col a:hover{color:var(--accent-500);transform:translateX(2px);}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);
  display:grid;place-items:center;color:#C8D8D2;font-size:14px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.footer-social a:hover{background:var(--accent-500);color:#FFFFFF;transform:none;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13.5px;color:#8FA9A0;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .btn-nav-cta{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:310px;max-width:86vw;
    background:#FFFFFF;flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:88px 22px 28px;margin:0;
    transform:translateX(102%);transition:transform .28s var(--ease);
    box-shadow:var(--shadow-2);z-index:70;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:16px 6px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--accent-500);}
  .z-block{grid-template-columns:1fr;gap:26px;padding:44px 0;}
  .z-block:nth-child(even) .z-media{order:0;}
  .z-block:nth-child(even) .z-copy{order:0;}
  .form-panel{grid-template-columns:1fr;}
  .form-intro{padding:36px 28px;}
  .form-body{padding:32px 28px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:44px 32px;}
}
@media (max-width:768px){
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .section-head{margin-bottom:36px;}
  .top-bar-promo{font-size:13px;}
  .countdown{display:none;}
  .promo-text{font-size:13px;}
  .cat2-hero-inner{padding:60px 0 118px;}
  .cat2-hero-lead{font-size:16px;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .stat{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 20px;}
  .stat:nth-child(2n){border-right:none;}
  .stat:nth-child(n+3){border-bottom:none;}
  .stat-value{font-size:26px;}
  .case-card{grid-template-columns:1fr;}
  .case-media img{min-height:200px;aspect-ratio:16/10;}
  .case-body{padding:24px 22px;}
  .form-grid{grid-template-columns:1fr;}
  .form-body{padding:28px 22px;}
  .footer-bottom{flex-direction:column;}
  .footer-brand p{max-width:none;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;max-width:150px;}
  .promo-link{display:none;}
  .cat2-hero h1{font-size:28px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;}
  .stat{border-right:none;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:none;}
  .stat:nth-child(n+3){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .form-intro,.form-body{padding:26px 20px;}
  .faq .accordion-title{font-size:16.5px;padding:18px 48px 18px 18px;}
  .faq .accordion-content{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .status-chip .dot{animation:none;}
}