/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --bg:#050a16;
  --bg-deep:#02060f;
  --bg-soft:#0a1428;
  --surface:rgba(16,32,62,.62);
  --surface-2:rgba(21,40,74,.78);
  --surface-3:rgba(10,20,40,.72);
  --line:rgba(96,166,255,.18);
  --line-strong:rgba(96,206,255,.40);
  --primary:#2fe0c0;
  --primary-deep:#12a88f;
  --blue:#3b8cff;
  --accent:#8ef7d2;
  --warn:#ffc266;
  --text:#e9f2ff;
  --muted:#95a9cb;
  --muted-2:#6d80a3;
  --radius-xs:8px;
  --radius-s:12px;
  --radius:18px;
  --radius-l:26px;
  --shadow-s:0 8px 22px rgba(2,10,28,.42);
  --shadow:0 18px 48px rgba(2,10,28,.55);
  --shadow-l:0 30px 70px rgba(2,10,28,.65);
  --glow:0 0 0 1px rgba(47,224,192,.34),0 14px 38px rgba(47,224,192,.26);
  --glow-blue:0 0 0 1px rgba(59,140,255,.32),0 14px 38px rgba(59,140,255,.24);
  --space:36px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(1100px 620px at 12% -6%,rgba(47,224,192,.16),transparent 62%),
    radial-gradient(980px 560px at 92% 2%,rgba(59,140,255,.18),transparent 60%),
    radial-gradient(800px 500px at 50% 108%,rgba(47,224,192,.10),transparent 65%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-s);}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4,h5{margin:0 0 14px;font-weight:700;line-height:1.32;letter-spacing:.2px;color:#fff;}
h1{font-size:clamp(1.75rem,3.3vw,2.75rem);}
h2{font-size:clamp(1.4rem,2.4vw,2rem);}
h3{font-size:clamp(1.08rem,1.6vw,1.28rem);}
p{margin:0 0 14px;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:var(--text);}
button{cursor:pointer;}
::selection{background:rgba(47,224,192,.34);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
/* foundation 覆盖 */
.row{max-width:1220px;margin:0 auto;}
.column,.columns{padding-left:.9rem;padding-right:.9rem;}
/* ============ 通用容器 / 板块 ============ */
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}
main{display:block;}
.section{padding:72px 0;position:relative;}
.section--tight{padding:52px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-weight:700;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(47,224,192,.3);
  background:rgba(47,224,192,.08);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.lead{font-size:1.02rem;color:var(--muted);line-height:1.9;}
.section-title-sub{margin-top:6px;font-size:.96rem;color:var(--muted-2);}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0;}
/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:.95rem;font-weight:600;letter-spacing:.4px;line-height:1;
  transition:transform .22s ease,box-shadow .28s ease,background .28s ease,color .22s ease,border-color .22s ease;
  cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-glow{
  color:#04211c;
  background:linear-gradient(135deg,var(--accent),var(--primary) 55%,#1fb6a0);
  box-shadow:var(--glow);
}
.btn-glow:hover{color:#04211c;box-shadow:0 0 0 1px rgba(47,224,192,.55),0 18px 46px rgba(47,224,192,.42);transform:translateY(-2px);}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.04);border-color:var(--line-strong);
}
.btn-ghost:hover{color:#fff;background:rgba(59,140,255,.16);border-color:rgba(96,206,255,.6);transform:translateY(-2px);}
.btn-blue{
  color:#eaf3ff;background:linear-gradient(135deg,#5aa5ff,#2f6bff);
  box-shadow:var(--glow-blue);
}
.btn-blue:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(96,166,255,.5),0 18px 44px rgba(59,140,255,.4);}
.btn-sm{padding:10px 18px;font-size:.86rem;}
.btn-block{width:100%;}
/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:.76rem;font-weight:600;
  color:var(--accent);background:rgba(47,224,192,.10);
  border:1px solid rgba(47,224,192,.24);
}
.tag-blue{color:#a8cdff;background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.28);}
.tag-warn{color:#ffd79b;background:rgba(255,194,102,.12);border-color:rgba(255,194,102,.3);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor;}
/* ============ 玻璃卡片 ============ */
.glass{
  position:relative;
  background:linear-gradient(160deg,rgba(24,45,84,.62),rgba(9,18,36,.72));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-s);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.glass::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,255,255,.10),transparent 42%);
  opacity:.7;
}
.glass:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.g-card{padding:26px 24px;}
.g-card h3{margin-bottom:10px;}
.g-card p{margin:0;font-size:.92rem;line-height:1.8;}
.g-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.icon-box{
  width:44px;height:44px;border-radius:13px;flex:0 0 44px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.05rem;font-weight:700;
  color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary));
  box-shadow:0 8px 20px rgba(47,224,192,.28);
}
.icon-box.blue{color:#eaf3ff;background:linear-gradient(135deg,#6bb0ff,#2f6bff);box-shadow:0 8px 20px rgba(59,140,255,.28);}
/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,11,24,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1220px;margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.12rem;font-weight:800;color:#03211c;
  background:linear-gradient(135deg,var(--accent),var(--primary) 60%,#15b39b);
  box-shadow:0 8px 22px rgba(47,224,192,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text strong{font-size:1.08rem;letter-spacing:.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:.7rem;letter-spacing:.22em;color:var(--muted-2);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.main-nav a{
  position:relative;padding:9px 15px;border-radius:999px;
  font-size:.92rem;color:var(--muted);font-weight:500;
}
.main-nav a:hover{color:#fff;background:rgba(59,140,255,.14);}
.main-nav a.active{color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary));font-weight:700;box-shadow:0 6px 18px rgba(47,224,192,.3);}
.nav-stages{display:flex;align-items:center;gap:7px;flex:0 0 auto;}
.stage-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;font-size:.74rem;font-weight:600;
  color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.stage-chip.is-done{color:#a8cdff;border-color:rgba(59,140,255,.3);background:rgba(59,140,255,.1);}
.stage-chip.is-live{color:#062a22;border-color:transparent;background:linear-gradient(135deg,var(--accent),var(--primary));box-shadow:0 0 0 4px rgba(47,224,192,.14);}
.stage-chip.is-live .badge-dot{animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.25;}}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:0;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:999px;padding:3px 4px 3px 14px;transition:border-color .24s ease,box-shadow .24s ease;
}
.nav-search:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 4px rgba(47,224,192,.12);}
.nav-search input{
  background:transparent;border:0;outline:none;width:150px;
  font-size:.86rem;color:var(--text);
}
.nav-search input::placeholder{color:var(--muted-2);}
.nav-search button{
  width:32px;height:32px;border-radius:50%;border:0;
  background:rgba(47,224,192,.16);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:.86rem;
  transition:background .22s ease,color .22s ease;
}
.nav-search button:hover{background:var(--primary);color:#04211c;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);background:rgba(59,140,255,.14);
  color:#fff;align-items:center;justify-content:center;font-size:1.1rem;
}
.mobile-panel{display:none;border-top:1px solid var(--line);background:rgba(4,10,22,.96);padding:16px 20px 22px;}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;padding:12px 14px;border-radius:12px;color:var(--muted);
  border:1px solid transparent;margin-bottom:8px;font-size:.96rem;
}
.mobile-panel a:hover,.mobile-panel a.active{color:#fff;background:rgba(59,140,255,.14);border-color:var(--line);}
.mobile-stage{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 16px;}
/* ============ Hero 券面区 ============ */
.hero{padding:64px 0 54px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center;}
.hero h1{margin-bottom:16px;}
.hero-sub{
  font-size:1.06rem;color:var(--accent);font-weight:600;margin-bottom:16px;letter-spacing:.3px;
}
.hero-text{font-size:.96rem;color:var(--muted);line-height:1.92;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:26px;}
.hero-metrics .m strong{display:block;font-size:1.5rem;color:#fff;font-weight:800;letter-spacing:.5px;}
.hero-metrics .m span{font-size:.78rem;color:var(--muted-2);letter-spacing:.06em;}
/* 优惠券墙 */
.coupon-wall{position:relative;}
.coupon-main{
  position:relative;padding:30px 30px 28px;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(31,190,168,.24),rgba(14,32,64,.86) 48%,rgba(8,18,38,.92));
  border:1px solid rgba(47,224,192,.36);
  box-shadow:0 0 0 1px rgba(47,224,192,.14),0 34px 80px rgba(2,12,32,.7),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(18px);
  overflow:hidden;
}
.coupon-main::before{
  content:"";position:absolute;top:-60px;right:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,224,192,.34),transparent 68%);
  filter:blur(6px);
}
.coupon-ribbon{
  position:absolute;top:0;left:0;
  padding:7px 18px;border-bottom-right-radius:16px;
  font-size:.76rem;font-weight:700;letter-spacing:.1em;color:#04211c;
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
.coupon-value{display:flex;align-items:flex-end;gap:10px;margin:22px 0 6px;position:relative;z-index:1;}
.coupon-value b{font-size:3.2rem;line-height:1;font-weight:800;color:#fff;letter-spacing:-1px;}
.coupon-value span{font-size:.94rem;color:var(--muted);padding-bottom:8px;}
.coupon-name{font-size:1.16rem;font-weight:700;color:#fff;margin-bottom:6px;position:relative;z-index:1;}
.coupon-desc{font-size:.88rem;color:var(--muted);margin-bottom:20px;position:relative;z-index:1;}
.coupon-list{display:grid;gap:10px;margin-bottom:22px;position:relative;z-index:1;}
.coupon-list li{
  display:flex;align-items:flex-start;gap:10px;font-size:.88rem;color:#c9d8ef;
}
.coupon-list li i{
  flex:0 0 18px;width:18px;height:18px;border-radius:50%;margin-top:4px;
  display:flex;align-items:center;justify-content:center;
  font-size:.62rem;font-style:normal;font-weight:700;color:#04211c;
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
.coupon-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;position:relative;z-index:1;}
.coupon-code{
  font-size:.82rem;color:var(--muted-2);
  padding:8px 14px;border-radius:10px;border:1px dashed rgba(96,166,255,.34);
  background:rgba(59,140,255,.07);letter-spacing:.08em;
}
.coupon-code b{color:var(--accent);letter-spacing:.14em;}
.coupon-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px;}
.mini-coupon{
  padding:16px 14px;border-radius:var(--radius-s);text-align:center;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.mini-coupon:hover{transform:translateY(-4px);border-color:var(--line-strong);background:rgba(59,140,255,.12);}
.mini-coupon b{display:block;font-size:1.28rem;color:var(--accent);font-weight:800;}
.mini-coupon span{font-size:.74rem;color:var(--muted-2);}
/* ============ 指标看板 ============ */
.board{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:30px 26px;border-radius:var(--radius-l);
  background:linear-gradient(140deg,rgba(20,40,76,.72),rgba(8,16,34,.8));
  border:1px solid var(--line);box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
}
.board-item{text-align:center;position:relative;}
.board-item + .board-item::before{
  content:"";position:absolute;left:-9px;top:12%;height:76%;width:1px;
  background:linear-gradient(180deg,transparent,var(--line-strong),transparent);
}
.board-item b{display:block;font-size:2rem;font-weight:800;color:#fff;letter-spacing:.4px;line-height:1.2;}
.board-item b em{font-style:normal;font-size:1rem;color:var(--primary);margin-left:2px;}
.board-item span{font-size:.82rem;color:var(--muted-2);}
/* ============ 网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.grid-7{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
/* ============ 痛点 ============ */
.pain-card{padding:26px 24px;border-radius:var(--radius);background:rgba(255,255,255,.035);border:1px solid var(--line);transition:all .28s ease;}
.pain-card:hover{border-color:rgba(255,194,102,.42);background:rgba(255,194,102,.06);transform:translateY(-4px);}
.pain-num{font-size:.78rem;font-weight:800;letter-spacing:.16em;color:var(--warn);margin-bottom:12px;display:block;}
/* ============ 场景演示 ============ */
.scene{border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);background:linear-gradient(160deg,rgba(24,45,84,.56),rgba(8,16,34,.8));}
.scene-visual{
  height:132px;display:flex;align-items:flex-end;padding:18px 22px;
  background:linear-gradient(135deg,rgba(47,224,192,.24),rgba(59,140,255,.2) 60%,transparent);
  border-bottom:1px solid var(--line);position:relative;
}
.scene-visual span{font-size:.78rem;letter-spacing:.14em;color:#cfeee6;font-weight:700;}
.scene-body{padding:22px;}
.scene-body ol{counter-reset:step;margin-top:12px;}
.scene-body ol li{
  position:relative;padding-left:30px;font-size:.88rem;color:var(--muted);margin-bottom:10px;
}
.scene-body ol li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;
  font-size:.7rem;font-weight:700;color:#04211c;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
/* ============ 对比 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.compare-col{padding:28px 26px;border-radius:var(--radius-l);border:1px solid var(--line);}
.compare-col.old{background:rgba(255,255,255,.03);}
.compare-col.new{
  background:linear-gradient(160deg,rgba(47,224,192,.14),rgba(12,26,52,.8));
  border-color:rgba(47,224,192,.34);box-shadow:var(--glow);
}
.compare-col h3{display:flex;align-items:center;gap:10px;}
.compare-col ul li{
  display:flex;gap:10px;font-size:.9rem;color:var(--muted);padding:11px 0;
  border-bottom:1px dashed rgba(96,166,255,.16);
}
.compare-col ul li:last-child{border-bottom:0;}
.compare-col ul li i{font-style:normal;color:var(--muted-2);flex:0 0 16px;}
.compare-col.new ul li i{color:var(--primary);}
/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(59,140,255,.5),transparent);
}
.tl-item{position:relative;padding:0 0 28px 56px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:10px;top:4px;width:20px;height:20px;border-radius:50%;
  background:var(--bg-soft);border:2px solid var(--primary);
  box-shadow:0 0 14px rgba(47,224,192,.6);
}
.tl-item.live .tl-dot{background:var(--primary);box-shadow:0 0 0 6px rgba(47,224,192,.16),0 0 18px rgba(47,224,192,.7);}
.tl-time{font-size:.78rem;letter-spacing:.1em;color:var(--primary);font-weight:700;margin-bottom:6px;}
.tl-item h3{font-size:1.06rem;margin-bottom:8px;}
.tl-item p{font-size:.9rem;margin:0;}
/* ============ 评价墙 ============ */
.review{padding:24px 22px;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid var(--line);transition:all .28s ease;}
.review:hover{background:rgba(59,140,255,.1);border-color:var(--line-strong);transform:translateY(-4px);}
.stars{color:#ffd166;font-size:.88rem;letter-spacing:2px;margin-bottom:10px;}
.review p{font-size:.9rem;color:#c8d8f0;margin-bottom:14px;}
.review-who{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--muted-2);}
.review-who .avatar{
  width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.8rem;font-weight:700;color:#04211c;
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
/* ============ 资讯列表 ============ */
.news-list{display:grid;gap:14px;}
.news-item{
  display:flex;align-items:center;gap:18px;padding:18px 22px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:all .26s ease;
}
.news-item:hover{background:rgba(47,224,192,.07);border-color:rgba(47,224,192,.36);transform:translateX(6px);}
.news-date{flex:0 0 84px;font-size:.8rem;color:var(--muted-2);letter-spacing:.05em;}
.news-item h3{font-size:.98rem;margin:0 0 4px;}
.news-item p{font-size:.84rem;margin:0;color:var(--muted-2);}
.news-tag{flex:0 0 auto;}
/* ============ 焦点专题 ============ */
.topic-card{
  padding:0;border-radius:var(--radius-l);overflow:hidden;
  background:linear-gradient(160deg,rgba(24,45,84,.6),rgba(8,16,34,.82));
  border:1px solid var(--line);transition:all .3s ease;
}
.topic-card:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.topic-cover{
  height:118px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;
  background:linear-gradient(135deg,rgba(47,224,192,.28),rgba(59,140,255,.24));
  border-bottom:1px solid var(--line);
}
.topic-cover b{font-size:1.6rem;color:rgba(255,255,255,.9);font-weight:800;}
.topic-body{padding:20px 22px 24px;}
.topic-body h3{font-size:1.04rem;margin-bottom:8px;}
.topic-body p{font-size:.86rem;margin:0;}
/* ============ 套餐对比 ============ */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.plan{
  padding:30px 26px;border-radius:var(--radius-l);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  display:flex;flex-direction:column;transition:all .3s ease;
}
.plan:hover{transform:translateY(-6px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.plan.featured{
  background:linear-gradient(165deg,rgba(47,224,192,.16),rgba(10,24,48,.86));
  border-color:rgba(47,224,192,.42);
  box-shadow:var(--glow);
}
.plan-name{font-size:.82rem;letter-spacing:.14em;color:var(--primary);font-weight:700;margin-bottom:10px;}
.plan-price{display:flex;align-items:flex-end;gap:6px;margin-bottom:6px;}
.plan-price b{font-size:2.4rem;font-weight:800;color:#fff;line-height:1;}
.plan-price span{font-size:.82rem;color:var(--muted-2);padding-bottom:6px;}
.plan-note{font-size:.84rem;color:var(--muted);margin-bottom:20px;}
.plan ul{margin-bottom:24px;flex:1;}
.plan ul li{
  display:flex;gap:10px;font-size:.88rem;color:#c6d6ee;padding:9px 0;
  border-bottom:1px dashed rgba(96,166,255,.14);
}
.plan ul li:last-child{border-bottom:0;}
.plan ul li i{font-style:normal;color:var(--primary);flex:0 0 15px;font-weight:700;}
/* ============ 保障徽章 ============ */
.guard-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  padding:28px 24px;border-radius:var(--radius-l);
  background:linear-gradient(140deg,rgba(59,140,255,.14),rgba(8,16,34,.82));
  border:1px solid var(--line);backdrop-filter:blur(14px);
}
.guard{display:flex;gap:14px;align-items:flex-start;}
.guard h4{font-size:.98rem;margin-bottom:6px;}
.guard p{font-size:.82rem;margin:0;line-height:1.72;}
/* ============ 快速解答 / FAQ ============ */
.qa{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.qa-item{padding:24px 22px;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid var(--line);}
.qa-item h4{font-size:.98rem;color:#fff;margin-bottom:10px;}
.qa-item p{font-size:.86rem;margin:0;}
.faq{display:grid;gap:12px;}
.faq details{
  border-radius:var(--radius-s);border:1px solid var(--line);
  background:rgba(255,255,255,.035);overflow:hidden;transition:border-color .26s ease,background .26s ease;
}
.faq details[open]{border-color:rgba(47,224,192,.36);background:rgba(47,224,192,.06);}
.faq summary{
  cursor:pointer;padding:17px 22px;font-size:.96rem;font-weight:600;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:14px;list-style:none;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";font-size:1.2rem;color:var(--primary);font-weight:700;flex:0 0 auto;
  transition:transform .24s ease;
}
.faq details[open] summary::after{content:"–";}
.faq .faq-body{padding:0 22px 20px;font-size:.9rem;color:var(--muted);line-height:1.85;}
/* ============ 转化表单 ============ */
.claim-box{
  padding:38px 36px;border-radius:var(--radius-l);
  background:linear-gradient(150deg,rgba(31,190,168,.2),rgba(11,24,48,.9) 55%,rgba(6,14,30,.95));
  border:1px solid rgba(47,224,192,.34);
  box-shadow:0 0 0 1px rgba(47,224,192,.12),0 34px 80px rgba(2,12,32,.6);
  display:grid;grid-template-columns:1fr 1.05fr;gap:42px;align-items:center;
  backdrop-filter:blur(18px);
}
.claim-form{display:grid;gap:14px;}
.field label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:7px;letter-spacing:.04em;}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:12px;
  background:rgba(4,10,22,.7);border:1px solid var(--line);
  outline:none;transition:border-color .24s ease,box-shadow .24s ease;
}
.field input::placeholder{color:var(--muted-2);}
.field input:focus,.field select:focus{
  border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,224,192,.14);
}
.field select option{background:#0a1428;color:#e9f2ff;}
.form-note{font-size:.78rem;color:var(--muted-2);line-height:1.7;}
.form-tip{
  display:none;padding:13px 16px;border-radius:12px;font-size:.88rem;
  color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary));font-weight:600;
}
.form-tip.show{display:block;}
/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;padding:56px 0 26px;
  background:linear-gradient(180deg,rgba(6,14,30,.4),rgba(3,8,18,.95));
  border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-mark{width:38px;height:38px;font-size:1rem;border-radius:11px;}
.foot-brand strong{font-size:1.05rem;color:#fff;}
.foot-brand em{font-style:normal;display:block;font-size:.7rem;letter-spacing:.2em;color:var(--muted-2);}
.foot-desc{font-size:.86rem;color:var(--muted-2);line-height:1.82;max-width:360px;}
.foot-col h4{font-size:.88rem;letter-spacing:.12em;color:#fff;margin-bottom:16px;font-weight:700;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul li a{font-size:.86rem;color:var(--muted-2);}
.foot-col ul li a:hover{color:var(--primary);}
.foot-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8rem;color:var(--muted-2);
}
.foot-bottom a{color:var(--muted-2);}
.foot-bottom a:hover{color:var(--primary);}
/* ============ 响应式 ============ */
@media (max-width:1120px){
  .nav-stages{display:none;}
  .nav-search input{width:118px;}
  .grid-7{grid-template-columns:repeat(3,1fr);}
  .hero-grid{gap:36px;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .nav-search{display:none;}
  .hero{padding:44px 0 40px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .board{grid-template-columns:repeat(2,1fr);gap:24px 18px;}
  .board-item:nth-child(3)::before{display:none;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-7{grid-template-columns:repeat(2,1fr);}
  .guard-strip{grid-template-columns:repeat(2,1fr);gap:22px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .claim-box{grid-template-columns:1fr;gap:30px;padding:32px 26px;}
}
@media (max-width:768px){
  .section{padding:54px 0;}
  .grid-2,.grid-3,.plans,.qa,.compare{grid-template-columns:1fr;}
  .coupon-mini{grid-template-columns:repeat(3,1fr);gap:10px;}
  .mini-coupon b{font-size:1.05rem;}
  .coupon-main{padding:26px 22px 24px;}
  .coupon-value b{font-size:2.5rem;}
  .news-item{flex-wrap:wrap;gap:10px;}
  .news-date{flex:0 0 auto;}
  .news-tag{display:none;}
  .brand-text em{display:none;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .nav-wrap{padding:10px 16px;gap:12px;}
  .brand-text strong{font-size:.98rem;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:18px;}
  .hero-metrics .m strong{font-size:1.24rem;}
  .grid-4,.grid-7,.guard-strip,.board{grid-template-columns:1fr;}
  .board-item + .board-item::before{display:none;}
  .coupon-value b{font-size:2.1rem;}
  .coupon-mini{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .claim-box{padding:26px 18px;}
  .timeline::before{left:14px;}
  .tl-item{padding-left:44px;}
  .tl-dot{left:5px;}
}

/* roulang page: category2 */
:root{
 --bg:#050a16;
 --bg-deep:#02060f;
 --bg-soft:#0a1428;
 --surface:rgba(16,32,62,.62);
 --surface-2:rgba(21,40,74,.78);
 --surface-3:rgba(10,20,40,.72);
 --line:rgba(96,166,255,.18);
 --line-strong:rgba(96,206,255,.40);
 --primary:#2fe0c0;
 --primary-deep:#12a88f;
 --blue:#3b8cff;
 --accent:#8ef7d2;
 --warn:#ffc266;
 --text:#e9f2ff;
 --muted:#95a9cb;
 --muted-2:#6d80a3;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:26px;
 --shadow-s:0 8px 22px rgba(2,10,28,.42);
 --shadow:0 18px 48px rgba(2,10,28,.55);
 --shadow-l:0 30px 70px rgba(2,10,28,.65);
 --glow:0 0 0 1px rgba(47,224,192,.34),0 14px 38px rgba(47,224,192,.26);
 --glow-blue:0 0 0 1px rgba(59,140,255,.32),0 14px 38px rgba(59,140,255,.24);
 --space:36px;
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:var(--font);
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 background-image:
 radial-gradient(1100px 620px at 12% -6%,rgba(47,224,192,.16),transparent 62%),
 radial-gradient(980px 560px at 92% 2%,rgba(59,140,255,.18),transparent 60%),
 radial-gradient(800px 500px at 50% 108%,rgba(47,224,192,.10),transparent 65%);
 background-attachment:fixed;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-s);}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease,background .22s ease;}
a:hover{color:var(--primary);}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:var(--text);}
button{cursor:pointer;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.32;color:#fff;font-weight:700;letter-spacing:.2px;}
h1{font-size:2.42rem;letter-spacing:.4px;}
h2{font-size:1.78rem;}
h3{font-size:1.12rem;}
h4{font-size:1rem;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
::selection{background:rgba(47,224,192,.32);color:#fff;}
/* ============ 容器 / 板块 ============ */
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}
main{display:block;}
.section{padding:72px 0;position:relative;}
.section--tight{padding:52px 0;}
.section--deep{background:linear-gradient(180deg,rgba(2,6,15,0),rgba(2,6,15,.72) 30%,rgba(2,6,15,0));}
.section-head{max-width:790px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
 color:var(--primary);font-weight:700;
 padding:6px 14px;border-radius:999px;
 border:1px solid rgba(47,224,192,.3);
 background:rgba(47,224,192,.08);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.lead{font-size:1.02rem;color:var(--muted);line-height:1.9;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0;}
/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:600;letter-spacing:.4px;line-height:1;
 transition:transform .22s ease,box-shadow .28s ease,background .28s ease,color .22s ease,border-color .22s ease;
 cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-glow{color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary) 55%,#1fb6a0);box-shadow:var(--glow);}
.btn-glow:hover{color:#04211c;box-shadow:0 0 0 1px rgba(47,224,192,.55),0 18px 46px rgba(47,224,192,.42);transform:translateY(-2px);}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.04);border-color:var(--line-strong);}
.btn-ghost:hover{color:#fff;background:rgba(59,140,255,.16);border-color:rgba(96,206,255,.6);transform:translateY(-2px);}
.btn-blue{color:#eaf3ff;background:linear-gradient(135deg,#5aa5ff,#2f6bff);box-shadow:var(--glow-blue);}
.btn-blue:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(96,166,255,.5),0 18px 44px rgba(59,140,255,.4);}
.btn-sm{padding:10px 18px;font-size:.86rem;}
.btn-block{width:100%;}
/* ============ 标签 / 徽章 ============ */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:.76rem;font-weight:600;
 color:var(--accent);background:rgba(47,224,192,.10);
 border:1px solid rgba(47,224,192,.24);
}
.tag-blue{color:#a8cdff;background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.28);}
.tag-warn{color:#ffd79b;background:rgba(255,194,102,.12);border-color:rgba(255,194,102,.3);}
.tag-plain{color:var(--muted);background:rgba(255,255,255,.05);border-color:var(--line);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor;}
/* ============ 玻璃卡 ============ */
.glass{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-l);
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
.g-card{
 padding:26px 24px;
 background:var(--surface-3);
 border:1px solid var(--line);
 border-radius:var(--radius);
 box-shadow:var(--shadow-s);
 transition:transform .26s ease,box-shadow .28s ease,border-color .26s ease,background .26s ease;
}
.g-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);background:var(--surface-2);}
.g-card h3{margin-bottom:10px;}
.g-card p{margin:0;font-size:.92rem;line-height:1.8;color:var(--muted);}
/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.82);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav-wrap{
 max-width:1220px;margin:0 auto;padding:12px 20px;
 display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
 width:42px;height:42px;border-radius:13px;
 display:flex;align-items:center;justify-content:center;
 font-size:1.12rem;font-weight:800;color:#03211c;
 background:linear-gradient(135deg,var(--accent),var(--primary) 60%,#15b39b);
 box-shadow:0 8px 22px rgba(47,224,192,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text strong{font-size:1.08rem;letter-spacing:.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:.7rem;letter-spacing:.22em;color:var(--muted-2);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.main-nav a{
 position:relative;padding:9px 15px;border-radius:999px;
 font-size:.92rem;color:var(--muted);font-weight:500;
}
.main-nav a:hover{color:#fff;background:rgba(59,140,255,.14);}
.main-nav a.active{
 color:#eafffb;
 background:rgba(47,224,192,.14);
 box-shadow:inset 0 0 0 1px rgba(47,224,192,.34);
}
.nav-phase{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.chip{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 13px;border-radius:999px;font-size:.74rem;font-weight:600;
 color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
 transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:#fff;border-color:var(--line-strong);}
.chip.is-on{
 color:#04211c;border-color:transparent;
 background:linear-gradient(135deg,var(--accent),var(--primary));
 box-shadow:0 6px 18px rgba(47,224,192,.3);
}
.chip.is-on:hover{color:#04211c;}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:12px;
 border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
 color:var(--text);font-size:1rem;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:rgba(59,140,255,.16);color:#fff;}
/* ============ Hero（分类页头图） ============ */
.hero{padding:60px 0 54px;position:relative;overflow:hidden;}
.hero::after{
 content:"";position:absolute;left:50%;top:-160px;transform:translateX(-50%);
 width:900px;height:420px;border-radius:50%;
 background:radial-gradient(circle,rgba(47,224,192,.16),transparent 68%);
 pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:38px;align-items:start;position:relative;z-index:2;}
.flash-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:8px 17px;border-radius:999px;font-size:.82rem;font-weight:800;
 color:#3a2400;background:linear-gradient(135deg,#ffe0ad,#ffb44d);
 box-shadow:0 10px 26px rgba(255,180,77,.34);
 transform:rotate(-1.6deg);margin-bottom:18px;
}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{
 background:linear-gradient(135deg,var(--accent),var(--blue));
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:1.04rem;color:var(--muted);line-height:1.92;max-width:640px;}
.limit-line{
 display:flex;align-items:center;gap:9px;flex-wrap:wrap;
 margin:20px 0 22px;font-size:.9rem;color:var(--warn);font-weight:600;
}
.limit-line i{font-size:.95rem;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 22px;max-width:640px;}
.hero-points li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted);}
.hero-points i{color:var(--primary);margin-top:5px;font-size:.78rem;}
/* Hero 右侧面板 */
.hero-panel{padding:28px 26px;}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.panel-title h2{font-size:1.06rem;margin:0;}
.panel-rows{display:flex;flex-direction:column;gap:18px;}
.panel-row .row-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.88rem;color:var(--muted);margin-bottom:8px;}
.panel-row .row-top strong{color:#fff;font-weight:600;}
.progress{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--blue));box-shadow:0 0 14px rgba(47,224,192,.55);}
.panel-note{
 margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);
 font-size:.84rem;color:var(--muted-2);line-height:1.8;
}
.panel-note strong{color:var(--accent);}
/* ============ 指标看板 ============ */
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric-card{
 padding:26px 22px;border-radius:var(--radius);
 background:linear-gradient(160deg,rgba(21,40,74,.78),rgba(8,18,38,.7));
 border:1px solid var(--line);box-shadow:var(--shadow-s);
 transition:transform .26s ease,box-shadow .28s ease,border-color .26s ease;
}
.metric-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.metric-num{
 font-size:2.1rem;font-weight:800;line-height:1.1;margin-bottom:8px;
 background:linear-gradient(135deg,var(--accent),var(--blue));
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-label{font-size:.92rem;color:#dce8fb;font-weight:600;margin-bottom:6px;}
.metric-desc{font-size:.82rem;color:var(--muted-2);line-height:1.72;}
/* ============ 专题矩阵 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.topic-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.topic-icon{
 width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
 font-size:1.05rem;color:var(--accent);background:rgba(47,224,192,.1);
 border:1px solid rgba(47,224,192,.24);
}
.topic-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
/* ============ 四季对照 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.compare-card{
 padding:24px 22px;border-radius:var(--radius);
 background:var(--surface-3);border:1px solid var(--line);
 box-shadow:var(--shadow-s);position:relative;overflow:hidden;
 transition:transform .26s ease,border-color .26s ease,box-shadow .28s ease;
}
.compare-card::before{
 content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
 background:linear-gradient(180deg,var(--primary),transparent);
 opacity:.7;
}
.compare-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.compare-card h3{margin-bottom:4px;font-size:1.06rem;}
.compare-sub{font-size:.78rem;letter-spacing:.14em;color:var(--muted-2);text-transform:uppercase;margin-bottom:16px;}
.compare-list li{
 display:flex;gap:10px;align-items:flex-start;
 font-size:.87rem;color:var(--muted);padding:7px 0;
 border-bottom:1px dashed rgba(96,166,255,.14);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list i{color:var(--primary);font-size:.7rem;margin-top:7px;}
/* ============ 里程碑时间线 ============ */
.timeline{position:relative;padding-left:30px;}
.timeline::before{
 content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
 background:linear-gradient(180deg,var(--primary),rgba(59,140,255,.5) 55%,transparent);
}
.tl-item{position:relative;padding:0 0 28px 6px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-27px;top:7px;width:12px;height:12px;border-radius:50%;
 background:var(--bg);border:2px solid var(--primary);box-shadow:0 0 12px rgba(47,224,192,.7);
}
.tl-date{font-size:.78rem;letter-spacing:.12em;color:var(--accent);font-weight:700;margin-bottom:6px;}
.tl-item h3{font-size:1rem;margin-bottom:6px;}
.tl-item p{margin:0;font-size:.88rem;color:var(--muted);line-height:1.8;}
/* ============ 资讯列表 ============ */
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
 display:grid;grid-template-columns:112px 1fr auto;gap:20px;align-items:center;
 padding:18px 22px;border-radius:var(--radius);
 background:var(--surface-3);border:1px solid var(--line);
 transition:transform .24s ease,border-color .24s ease,background .24s ease,box-shadow .26s ease;
}
.news-item:hover{transform:translateX(4px);border-color:var(--line-strong);background:var(--surface-2);box-shadow:var(--shadow-s);}
.news-date{font-size:.8rem;color:var(--muted-2);letter-spacing:.06em;}
.news-main h3{font-size:1rem;margin:0 0 6px;}
.news-main p{margin:0;font-size:.86rem;color:var(--muted);}
.news-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
/* ============ 平台保障 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.guard-card{display:flex;gap:16px;padding:24px 22px;border-radius:var(--radius);background:var(--surface-3);border:1px solid var(--line);box-shadow:var(--shadow-s);transition:border-color .24s ease,transform .24s ease;}
.guard-card:hover{border-color:var(--line-strong);transform:translateY(-3px);}
.guard-icon{
 flex:0 0 auto;width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
 color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary));box-shadow:0 8px 22px rgba(47,224,192,.28);
 font-size:1rem;
}
.guard-card h3{font-size:1rem;margin-bottom:6px;}
.guard-card p{margin:0;font-size:.87rem;color:var(--muted);line-height:1.8;}
/* ============ 快速解答 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.quick-card{padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(165deg,rgba(21,40,74,.7),rgba(7,16,34,.76));box-shadow:var(--shadow-s);}
.quick-card h3{font-size:.98rem;display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.quick-card h3 i{color:var(--primary);font-size:.86rem;}
.quick-card p{margin:0;font-size:.87rem;color:var(--muted);line-height:1.82;}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
 border:1px solid var(--line);border-radius:var(--radius);
 background:var(--surface-3);padding:18px 22px;
 transition:border-color .24s ease,background .24s ease,box-shadow .26s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:var(--surface-2);box-shadow:var(--shadow-s);}
.faq-item summary{
 cursor:pointer;list-style:none;font-weight:600;font-size:.98rem;color:#fff;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"＋";color:var(--primary);font-weight:700;font-size:1rem;flex:0 0 auto;
 transition:transform .22s ease;
}
.faq-item[open] summary::after{content:"－";}
.faq-item p{margin:14px 0 0;font-size:.89rem;color:var(--muted);line-height:1.86;}
/* ============ 转化区 ============ */
.cta-wrap{
 padding:38px 34px;border-radius:var(--radius-l);
 background:linear-gradient(140deg,rgba(21,44,80,.9),rgba(6,14,30,.92));
 border:1px solid var(--line-strong);box-shadow:var(--shadow-l);
 position:relative;overflow:hidden;
}
.cta-wrap::after{
 content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
 background:radial-gradient(circle,rgba(47,224,192,.24),transparent 66%);
 pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;position:relative;z-index:2;}
.cta-grid h2{margin-bottom:12px;}
.cta-grid .lead{font-size:.95rem;}
.cta-perks{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.cta-perks li{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted);}
.cta-perks i{color:var(--primary);margin-top:5px;font-size:.74rem;}
.form-card{padding:26px 24px;border-radius:var(--radius);background:rgba(5,12,26,.7);border:1px solid var(--line);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.83rem;color:var(--muted);margin-bottom:8px;letter-spacing:.04em;}
.field input,.field select{
 width:100%;padding:12px 15px;border-radius:var(--radius-s);
 background:rgba(255,255,255,.04);border:1px solid var(--line);color:#fff;
 transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field input::placeholder{color:var(--muted-2);}
.field input:focus,.field select:focus{
 outline:none;border-color:var(--line-strong);background:rgba(59,140,255,.1);
 box-shadow:0 0 0 3px rgba(47,224,192,.16);
}
.field select option{background:#0a1428;color:#e9f2ff;}
.form-tip{margin:14px 0 0;font-size:.8rem;color:var(--muted-2);line-height:1.7;}
.form-msg{margin-top:14px;font-size:.86rem;color:var(--accent);display:none;}
.form-msg.show{display:block;}
/* ============ 页脚 ============ */
.site-footer{
 margin-top:30px;padding:56px 0 26px;
 background:linear-gradient(180deg,rgba(2,6,15,.4),rgba(2,6,15,.92));
 border-top:1px solid var(--line);
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{display:block;font-size:1.06rem;color:#fff;}
.foot-brand em{font-style:normal;font-size:.76rem;color:var(--muted-2);letter-spacing:.12em;}
.foot-desc{font-size:.87rem;color:var(--muted);line-height:1.86;margin:0;max-width:520px;}
.foot-col h4{font-size:.92rem;color:#fff;margin-bottom:14px;letter-spacing:.06em;}
.foot-col ul li{margin-bottom:9px;}
.foot-col ul li a{font-size:.87rem;color:var(--muted);}
.foot-col ul li a:hover{color:var(--primary);}
.foot-bottom{
 margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:.82rem;color:var(--muted-2);
}
.foot-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:4px;}
.foot-bottom a:hover{color:var(--primary);}
/* ============ 响应式 ============ */
@media (max-width:1080px){
 .hero-grid{grid-template-columns:1fr;gap:30px;}
 .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .quick-grid{grid-template-columns:1fr;}
 .foot-grid{grid-template-columns:1fr 1fr;}
 .cta-grid{grid-template-columns:1fr;gap:26px;}
 .nav-phase{display:none;}
}
@media (max-width:820px){
 .nav-toggle{display:inline-flex;}
 .nav-wrap{flex-wrap:wrap;gap:14px;}
 .main-nav{
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  width:100%;padding:12px 0 4px;border-top:1px solid var(--line);
 }
 .main-nav.is-open{display:flex;}
 .main-nav a{padding:12px 14px;font-size:.96rem;}
 h1{font-size:2rem;}
 h2{font-size:1.5rem;}
 .section{padding:56px 0;}
 .news-item{grid-template-columns:1fr;gap:10px;}
 .news-tags{justify-content:flex-start;}
 .guard-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
 h1{font-size:1.68rem;}
 h2{font-size:1.3rem;}
 .hero{padding:42px 0 38px;}
 .container{padding:0 15px;}
 .metrics-grid,.topic-grid,.compare-grid{grid-template-columns:1fr;}
 .hero-points{grid-template-columns:1fr;}
 .hero-actions .btn{width:100%;}
 .cta-wrap{padding:26px 20px;}
 .foot-grid{grid-template-columns:1fr;gap:24px;}
 .foot-bottom{flex-direction:column;align-items:flex-start;}
 .g-card,.guard-card,.quick-card,.form-card{padding:20px 18px;}
}

/* roulang page: category3 */
:root{
 --bg:#050a16;
 --bg-deep:#02060f;
 --bg-soft:#0a1428;
 --surface:rgba(16,32,62,.62);
 --surface-2:rgba(21,40,74,.78);
 --surface-3:rgba(10,20,40,.72);
 --line:rgba(96,166,255,.18);
 --line-strong:rgba(96,206,255,.40);
 --primary:#2fe0c0;
 --primary-deep:#12a88f;
 --blue:#3b8cff;
 --accent:#8ef7d2;
 --warn:#ffc266;
 --text:#e9f2ff;
 --muted:#95a9cb;
 --muted-2:#6d80a3;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:26px;
 --shadow-s:0 8px 22px rgba(2,10,28,.42);
 --shadow:0 18px 48px rgba(2,10,28,.55);
 --shadow-l:0 30px 70px rgba(2,10,28,.65);
 --glow:0 0 0 1px rgba(47,224,192,.34),0 14px 38px rgba(47,224,192,.26);
 --glow-blue:0 0 0 1px rgba(59,140,255,.32),0 14px 38px rgba(59,140,255,.24);
 --space:36px;
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
*,*::before,*::after{box-sizing:border-box;}
body{
 margin:0;
 font-family:var(--font);
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:var(--bg);
 background-image:
 radial-gradient(1100px 620px at 12% -6%,rgba(47,224,192,.16),transparent 62%),
 radial-gradient(980px 560px at 92% 2%,rgba(59,140,255,.18),transparent 60%),
 radial-gradient(800px 500px at 50% 108%,rgba(47,224,192,.10),transparent 65%);
 background-attachment:fixed;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{margin:0 0 12px;font-weight:700;line-height:1.32;color:#fff;letter-spacing:.2px;}
h1{font-size:clamp(1.9rem,3.5vw,2.85rem);line-height:1.24;}
h2{font-size:clamp(1.45rem,2.5vw,2rem);}
h3{font-size:1.12rem;}
h4{font-size:1rem;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-s);}
a{
 color:inherit;text-decoration:none;
 transition:color .22s ease,opacity .22s ease,background .22s ease,border-color .22s ease;
}
a:hover{color:var(--primary);}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:var(--text);}
button{appearance:none;-webkit-appearance:none;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px;}
.row{max-width:1220px;margin-left:auto;margin-right:auto;}
.column,.columns{padding-left:.9rem;padding-right:.9rem;}

/* ============ 容器 / 板块 ============ */
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}
main{display:block;}
.section{padding:70px 0;position:relative;}
.section--tight{padding:48px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
 color:var(--primary);font-weight:700;
 padding:6px 14px;border-radius:999px;
 border:1px solid rgba(47,224,192,.3);
 background:rgba(47,224,192,.08);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.lead{font-size:1.02rem;color:var(--muted);line-height:1.9;}
.section-title-sub{margin-top:6px;font-size:.95rem;color:var(--muted-2);}
.muted{color:var(--muted);}
.mini{font-size:.84rem;color:var(--muted-2);}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0;border:0;}
.anchor-offset{display:block;height:0;overflow:hidden;}

/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:600;letter-spacing:.4px;line-height:1;
 transition:transform .22s ease,box-shadow .28s ease,background .28s ease,color .22s ease,border-color .22s ease;
 cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-glow{
 color:#04211c;
 background:linear-gradient(135deg,var(--accent),var(--primary) 55%,#1fb6a0);
 box-shadow:var(--glow);
}
.btn-glow:hover{color:#04211c;box-shadow:0 0 0 1px rgba(47,224,192,.55),0 18px 46px rgba(47,224,192,.42);transform:translateY(-2px);}
.btn-ghost{
 color:var(--text);background:rgba(255,255,255,.04);border-color:var(--line-strong);
}
.btn-ghost:hover{color:#fff;background:rgba(59,140,255,.16);border-color:rgba(96,206,255,.6);transform:translateY(-2px);}
.btn-blue{
 color:#eaf3ff;background:linear-gradient(135deg,#5aa5ff,#2f6bff);
 box-shadow:var(--glow-blue);
}
.btn-blue:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(96,166,255,.5),0 18px 44px rgba(59,140,255,.4);}
.btn-sm{padding:10px 18px;font-size:.86rem;}
.btn-block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 12px;border-radius:999px;font-size:.76rem;font-weight:600;
 color:var(--accent);background:rgba(47,224,192,.10);
 border:1px solid rgba(47,224,192,.24);
}
.tag-blue{color:#a8cdff;background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.28);}
.tag-warn{color:#ffd79b;background:rgba(255,194,102,.12);border-color:rgba(255,194,102,.3);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 8px currentColor;}

/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.84);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav-wrap{
 max-width:1220px;margin:0 auto;padding:12px 20px;
 display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
 width:42px;height:42px;border-radius:13px;
 display:flex;align-items:center;justify-content:center;
 font-size:1.12rem;font-weight:800;color:#03211c;
 background:linear-gradient(135deg,var(--accent),var(--primary) 60%,#15b39b);
 box-shadow:0 8px 22px rgba(47,224,192,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text strong{font-size:1.08rem;letter-spacing:.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:.7rem;letter-spacing:.2em;color:var(--muted-2);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.main-nav a{
 position:relative;padding:9px 15px;border-radius:999px;
 font-size:.92rem;color:var(--muted);font-weight:500;
}
.main-nav a:hover{color:#fff;background:rgba(59,140,255,.14);}
.main-nav a.active{
 color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary));
 box-shadow:0 8px 20px rgba(47,224,192,.3);
 font-weight:700;
}
.nav-stage{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 13px;border-radius:999px;
 font-size:.76rem;font-weight:600;color:var(--warn);
 background:rgba(255,194,102,.1);
 border:1px solid rgba(255,194,102,.28);
}
.nav-stage i{font-size:.7rem;}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:12px;
 align-items:center;justify-content:center;
 border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:var(--text);
}

/* ============ Hero 杂志分栏 ============ */
.hero{padding:62px 0 56px;position:relative;}
.hero::after{
 content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
 background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.4fr .95fr;gap:36px;align-items:start;}
.hero h1{margin-bottom:16px;}
.hero h1 span{
 background:linear-gradient(120deg,var(--accent),var(--blue));
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:1.04rem;color:var(--muted);line-height:1.92;max-width:640px;margin-bottom:22px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-chip{
 display:inline-flex;align-items:center;gap:8px;
 padding:8px 14px;border-radius:999px;font-size:.82rem;color:var(--muted);
 background:var(--surface);border:1px solid var(--line);
}
.hero-chip b{color:#fff;font-weight:700;}
.feature-card{
 background:linear-gradient(165deg,rgba(26,52,96,.78),rgba(8,16,34,.86));
 border:1px solid var(--line-strong);
 border-radius:var(--radius-l);
 padding:28px 26px;
 box-shadow:var(--shadow-l);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
}
.feature-card .fc-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px;}
.feature-card h3{margin-bottom:4px;}
.meter{height:9px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin:14px 0 10px;}
.meter i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--blue));box-shadow:0 0 16px rgba(47,224,192,.5);}
.meter-row{display:flex;align-items:center;justify-content:space-between;font-size:.82rem;color:var(--muted-2);}
.node-list{margin-top:18px;border-top:1px dashed var(--line);padding-top:16px;}
.node-list li{
 display:flex;gap:12px;align-items:flex-start;
 font-size:.88rem;color:var(--muted);padding:7px 0;
}
.node-list li b{color:#fff;font-weight:600;}
.node-list li i{color:var(--primary);font-size:.72rem;margin-top:.42rem;}

/* ============ 指标看板 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 22px;
 backdrop-filter:blur(12px);
 transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.metric .num{
 font-size:2rem;font-weight:800;letter-spacing:.5px;
 background:linear-gradient(120deg,#fff,var(--accent));
 -webkit-background-clip:text;background-clip:text;color:transparent;
 line-height:1.2;
}
.metric .num small{font-size:.9rem;font-weight:600;margin-left:4px;-webkit-text-fill-color:var(--muted);}
.metric p{margin:6px 0 0;font-size:.86rem;color:var(--muted-2);}

/* ============ 通用卡片 ============ */
.card{
 position:relative;
 background:linear-gradient(160deg,rgba(24,46,86,.72),rgba(9,18,38,.8));
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px 24px;
 box-shadow:var(--shadow-s);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.card h3{margin-bottom:10px;}
.card p{margin:0;font-size:.92rem;line-height:1.82;color:var(--muted);}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.card-icon{
 width:44px;height:44px;border-radius:14px;
 display:flex;align-items:center;justify-content:center;
 font-size:1.05rem;color:var(--accent);
 background:rgba(47,224,192,.1);
 border:1px solid rgba(47,224,192,.26);
}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}

/* ============ 对比区 ============ */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.compare-panel{
 border-radius:var(--radius);
 padding:28px 26px;
 border:1px solid var(--line);
 background:var(--surface-3);
 backdrop-filter:blur(12px);
}
.compare-panel.is-on{
 border-color:var(--line-strong);
 background:linear-gradient(160deg,rgba(26,54,98,.78),rgba(8,18,38,.82));
 box-shadow:var(--shadow);
}
.compare-panel h3{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.compare-list li{
 display:flex;gap:11px;align-items:flex-start;
 padding:9px 0;font-size:.92rem;color:var(--muted);
 border-bottom:1px dashed rgba(96,166,255,.14);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li i{margin-top:.42rem;font-size:.72rem;}
.compare-list li.on i{color:var(--primary);}
.compare-list li.off i{color:var(--muted-2);}
.compare-list li b{color:#fff;font-weight:600;}

/* ============ 里程碑时间线 ============ */
.timeline{position:relative;padding-left:30px;max-width:900px;}
.timeline::before{
 content:"";position:absolute;left:7px;top:10px;bottom:12px;width:2px;
 background:linear-gradient(180deg,var(--primary),rgba(59,140,255,.5),rgba(59,140,255,0));
}
.tl-item{position:relative;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-30px;top:6px;
 width:16px;height:16px;border-radius:50%;
 background:var(--bg-soft);border:2px solid var(--primary);
 box-shadow:0 0 12px rgba(47,224,192,.6);
}
.tl-date{font-size:.8rem;letter-spacing:.14em;color:var(--primary);font-weight:700;text-transform:uppercase;}
.tl-item h3{margin:6px 0 6px;}
.tl-item p{margin:0;font-size:.92rem;color:var(--muted);max-width:680px;}

/* ============ 资讯列表 ============ */
.news-list{border-top:1px solid var(--line);}
.news-item{
 display:grid;grid-template-columns:110px 1fr auto;gap:20px;align-items:center;
 padding:20px 4px;border-bottom:1px solid var(--line);
 transition:background .24s ease,padding .24s ease;
}
.news-item:hover{background:rgba(59,140,255,.07);padding-left:12px;padding-right:12px;}
.news-item .n-date{font-size:.82rem;color:var(--muted-2);letter-spacing:.04em;}
.news-item h3{margin:0 0 6px;font-size:1.02rem;}
.news-item p{margin:0;font-size:.88rem;color:var(--muted);}
.news-item .n-go{color:var(--primary);font-size:.86rem;white-space:nowrap;font-weight:600;}

/* ============ 频道入口 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.channel{
 display:flex;flex-direction:column;gap:8px;
 padding:22px 20px;border-radius:var(--radius);
 border:1px solid var(--line);
 background:var(--surface);
 transition:transform .26s ease,border-color .26s ease,background .26s ease,box-shadow .26s ease;
}
.channel:hover{transform:translateY(-4px);border-color:var(--line-strong);background:var(--surface-2);box-shadow:var(--shadow);}
.channel strong{color:#fff;font-size:.98rem;}
.channel span{font-size:.84rem;color:var(--muted-2);line-height:1.7;}
.channel .ch-tag{font-size:.72rem;color:var(--accent);letter-spacing:.08em;}

/* ============ 保障 ============ */
.guard{
 padding:24px 22px;border-radius:var(--radius);
 border:1px solid var(--line);
 background:linear-gradient(160deg,rgba(18,36,68,.7),rgba(8,16,34,.78));
 transition:transform .26s ease,border-color .26s ease;
}
.guard:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.guard h3{font-size:1rem;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.guard h3 i{color:var(--primary);}
.guard p{margin:0;font-size:.88rem;color:var(--muted);line-height:1.78;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
details.faq-item{
 border:1px solid var(--line);
 border-radius:var(--radius-s);
 background:var(--surface-3);
 margin-bottom:12px;
 overflow:hidden;
 transition:border-color .24s ease,background .24s ease;
}
details.faq-item:hover{border-color:var(--line-strong);}
details.faq-item summary{
 list-style:none;cursor:pointer;
 padding:17px 20px;font-weight:600;color:#fff;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary::after{
 content:"＋";color:var(--primary);font-size:1.05rem;font-weight:700;flex:0 0 auto;
}
details.faq-item[open]{background:linear-gradient(160deg,rgba(22,44,84,.78),rgba(8,16,34,.82));border-color:var(--line-strong);}
details.faq-item[open] summary::after{content:"－";}
.faq-body{padding:0 20px 18px;font-size:.92rem;color:var(--muted);line-height:1.85;}

/* ============ 转化表单 ============ */
.join-shell{
 display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;
 border-radius:var(--radius-l);
 border:1px solid var(--line-strong);
 background:linear-gradient(150deg,rgba(28,58,108,.68),rgba(6,14,30,.88));
 padding:40px 38px;
 box-shadow:var(--shadow-l);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
}
.join-points li{display:flex;gap:11px;align-items:flex-start;padding:8px 0;font-size:.92rem;color:var(--muted);}
.join-points li i{color:var(--primary);margin-top:.42rem;font-size:.74rem;}
.join-form{
 background:rgba(6,13,28,.66);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:26px 24px;
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.84rem;color:var(--muted);margin-bottom:7px;letter-spacing:.03em;}
.field input,.field select,.field textarea{
 width:100%;padding:12px 14px;border-radius:var(--radius-s);
 background:rgba(255,255,255,.045);
 border:1px solid var(--line);
 color:var(--text);font-size:.94rem;
 transition:border-color .22s ease,background .22s ease,box-shadow .22s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2);}
.field input:focus,.field select:focus,.field textarea:focus{
 outline:none;border-color:var(--line-strong);background:rgba(59,140,255,.1);
 box-shadow:0 0 0 3px rgba(47,224,192,.16);
}
.field select option{background:#0a1428;color:var(--text);}
.form-tip{margin:14px 0 0;font-size:.86rem;color:var(--primary);min-height:1.4em;}
.form-tip.is-on{font-weight:600;}

/* ============ 页脚 ============ */
.site-footer{
 margin-top:20px;
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(4,9,20,.6),rgba(2,6,15,.96));
 padding:56px 0 26px;
}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{display:block;color:#fff;font-size:1.04rem;}
.foot-brand em{display:block;font-style:normal;font-size:.74rem;letter-spacing:.16em;color:var(--muted-2);}
.foot-desc{font-size:.88rem;color:var(--muted-2);line-height:1.85;margin:0;}
.foot-col h4{font-size:.92rem;color:#fff;margin-bottom:14px;letter-spacing:.06em;}
.foot-col ul li{margin-bottom:9px;}
.foot-col ul li a{font-size:.88rem;color:var(--muted);}
.foot-col ul li a:hover{color:var(--primary);}
.foot-bottom{
 margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
 display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
 font-size:.82rem;color:var(--muted-2);
}
.foot-bottom a{color:var(--muted);}
.foot-bottom a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:28px;}
 .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
 .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .join-shell{grid-template-columns:1fr;padding:34px 26px;}
 .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .nav-stage{display:none;}
}
@media screen and (max-width:768px){
 .nav-wrap{flex-wrap:wrap;gap:14px;}
 .nav-toggle{display:flex;}
 .nav-cta{margin-left:auto;}
 .main-nav{
  order:3;width:100%;flex-direction:column;align-items:stretch;gap:4px;
  max-height:0;overflow:hidden;transition:max-height .32s ease;
 }
 .main-nav.is-open{max-height:320px;padding-bottom:8px;}
 .main-nav a{padding:12px 16px;border-radius:var(--radius-s);}
 .section{padding:54px 0;}
 .compare{grid-template-columns:1fr;}
 .news-item{grid-template-columns:1fr;gap:8px;}
 .news-item .n-go{justify-self:start;}
 .hero-chips{gap:8px;}
}
@media screen and (max-width:520px){
 .container{padding:0 16px;}
 h1{font-size:1.72rem;}
 .grid-2,.grid-3,.grid-4,.metric-grid,.channel-grid{grid-template-columns:1fr;}
 .foot-grid{grid-template-columns:1fr;}
 .btn{width:100%;}
 .hero-actions .btn{width:100%;}
 .join-shell{padding:28px 18px;}
 .feature-card{padding:22px 18px;}
 .hero{padding:44px 0 40px;}
}

/* roulang page: category1 */
:root{
 --bg:#050a16;
 --bg-deep:#02060f;
 --bg-soft:#0a1428;
 --surface:rgba(16,32,62,.62);
 --surface-2:rgba(21,40,74,.78);
 --surface-3:rgba(10,20,40,.72);
 --line:rgba(96,166,255,.18);
 --line-strong:rgba(96,206,255,.40);
 --primary:#2fe0c0;
 --primary-deep:#12a88f;
 --blue:#3b8cff;
 --accent:#8ef7d2;
 --warn:#ffc266;
 --text:#e9f2ff;
 --muted:#95a9cb;
 --muted-2:#6d80a3;
 --radius-xs:8px;
 --radius-s:12px;
 --radius:18px;
 --radius-l:26px;
 --shadow-s:0 8px 22px rgba(2,10,28,.42);
 --shadow:0 18px 48px rgba(2,10,28,.55);
 --shadow-l:0 30px 70px rgba(2,10,28,.65);
 --glow:0 0 0 1px rgba(47,224,192,.34),0 14px 38px rgba(47,224,192,.26);
 --glow-blue:0 0 0 1px rgba(59,140,255,.32),0 14px 38px rgba(59,140,255,.24);
 --space:36px;
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);
 background:var(--bg);
 background-image:
 radial-gradient(1100px 620px at 12% -6%,rgba(47,224,192,.16),transparent 62%),
 radial-gradient(980px 560px at 92% 2%,rgba(59,140,255,.18),transparent 60%),
 radial-gradient(800px 500px at 50% 108%,rgba(47,224,192,.10),transparent 65%);
 background-attachment:fixed;
 -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-s);}
a{color:inherit;text-decoration:none;transition:color .22s ease,background .22s ease,transform .22s ease,box-shadow .26s ease;}
a:hover{color:var(--primary);}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:var(--text);}
button{cursor:pointer;}
h1,h2,h3,h4{margin:0 0 14px;line-height:1.32;color:#fff;font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(1.7rem,3.3vw,2.45rem);}
h2{font-size:clamp(1.34rem,2.1vw,1.86rem);}
h3{font-size:1.05rem;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.row{max-width:1220px;}
.column,.columns{padding-left:.9rem;padding-right:.9rem;}
/* ============ 容器与板块 ============ */
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 20px;}
main{display:block;}
.section{padding:70px 0;position:relative;}
.section--tight{padding:48px 0;}
.section-head{max-width:780px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{margin-bottom:10px;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:.74rem;letter-spacing:.18em;
 color:var(--primary);font-weight:700;padding:6px 14px;border-radius:999px;
 border:1px solid rgba(47,224,192,.3);background:rgba(47,224,192,.08);margin-bottom:15px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.lead{font-size:1.01rem;color:var(--muted);line-height:1.9;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);margin:0;}
/* ============ 按钮 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-size:.95rem;font-weight:600;letter-spacing:.4px;line-height:1;
 transition:transform .22s ease,box-shadow .28s ease,background .28s ease,color .22s ease,border-color .22s ease;
 cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-glow{color:#04211c;background:linear-gradient(135deg,var(--accent),var(--primary) 55%,#1fb6a0);box-shadow:var(--glow);}
.btn-glow:hover{color:#04211c;box-shadow:0 0 0 1px rgba(47,224,192,.55),0 18px 46px rgba(47,224,192,.42);transform:translateY(-2px);}
.btn-ghost{color:var(--text);background:rgba(255,255,255,.04);border-color:var(--line-strong);}
.btn-ghost:hover{color:#fff;background:rgba(59,140,255,.16);border-color:rgba(96,206,255,.6);transform:translateY(-2px);}
.btn-blue{color:#eaf3ff;background:linear-gradient(135deg,#5aa5ff,#2f6bff);box-shadow:var(--glow-blue);}
.btn-blue:hover{color:#fff;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(96,166,255,.5),0 18px 44px rgba(59,140,255,.4);}
.btn-sm{padding:10px 18px;font-size:.86rem;}
.btn-block{width:100%;}
/* ============ 标签 / 徽章 ============ */
.tag{
 display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
 font-size:.76rem;font-weight:600;color:var(--accent);
 background:rgba(47,224,192,.10);border:1px solid rgba(47,224,192,.24);
}
.tag-blue{color:#a8cdff;background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.28);}
.tag-warn{color:#ffd79b;background:rgba(255,194,102,.12);border-color:rgba(255,194,102,.3);}
.tag-mute{color:var(--muted-2);background:rgba(255,255,255,.04);border-color:var(--line);}
/* ============ 头部导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,11,24,.84);
 backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
}
.nav-wrap{
 max-width:1220px;margin:0 auto;padding:12px 20px;
 display:flex;align-items:center;gap:20px;position:relative;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{color:inherit;}
.brand-mark{
 width:42px;height:42px;border-radius:13px;display:flex;align-items:center;justify-content:center;
 font-size:1.12rem;font-weight:800;color:#03211c;
 background:linear-gradient(135deg,var(--accent),var(--primary) 60%,#15b39b);
 box-shadow:0 8px 22px rgba(47,224,192,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.18;}
.brand-text strong{font-size:1.08rem;letter-spacing:.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:.68rem;letter-spacing:.22em;color:var(--muted-2);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.main-nav a{
 position:relative;padding:9px 15px;border-radius:999px;
 font-size:.92rem;color:var(--muted);font-weight:500;
 transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(59,140,255,.14);}
.main-nav a.active{
 color:#fff;background:rgba(47,224,192,.13);
 box-shadow:inset 0 0 0 1px rgba(47,224,192,.34),0 8px 20px rgba(47,224,192,.16);
}
.phase-chip{
 display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
 padding:7px 14px;border-radius:999px;font-size:.78rem;font-weight:600;
 color:var(--accent);background:rgba(47,224,192,.08);
 border:1px solid rgba(47,224,192,.26);
}
.phase-chip .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.nav-toggle{
 display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;
 border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
 font-size:1.1rem;line-height:1;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--line-strong);color:#fff;}
/* ============ 首屏（杂志分栏） ============ */
.hero{padding:60px 0 48px;position:relative;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr);gap:32px;align-items:start;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px;}
.hero h1{margin-bottom:16px;}
.hero h1 .hl{color:var(--primary);}
.hero-lead{font-size:1.02rem;color:var(--muted);line-height:1.94;max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin:26px 0 24px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:.85rem;color:var(--muted-2);}
.hero-meta li{display:flex;align-items:center;gap:8px;}
.hero-meta li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}
.feature-card{
 position:relative;overflow:hidden;padding:26px 24px;
 background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius-l);
 box-shadow:var(--shadow);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.feature-card::after{
 content:"";position:absolute;right:-70px;bottom:-90px;width:230px;height:230px;border-radius:50%;
 background:radial-gradient(circle,rgba(47,224,192,.30),transparent 68%);pointer-events:none;
}
.feature-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;font-size:.78rem;letter-spacing:.14em;color:var(--muted-2);}
.feature-card h3{font-size:1.16rem;margin-bottom:10px;position:relative;}
.feature-card p{font-size:.9rem;color:var(--muted);position:relative;}
.feature-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);position:relative;}
.feature-stats b{display:block;color:var(--primary);font-size:1.05rem;letter-spacing:.4px;}
.feature-stats span{font-size:.74rem;color:var(--muted-2);}
.bar-track{height:6px;border-radius:999px;background:rgba(96,166,255,.16);overflow:hidden;margin-top:16px;position:relative;}
.bar-fill{height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--blue));box-shadow:0 0 14px rgba(47,224,192,.6);}
/* ============ 指标看板 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.metric{
 background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 20px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.metric:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--glow);background:var(--surface-2);}
.metric-value{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:.5px;}
.metric-label{font-size:.9rem;color:#fff;margin-top:8px;font-weight:600;}
.metric-desc{font-size:.8rem;color:var(--muted-2);margin-top:6px;line-height:1.7;}
/* ============ 玻璃卡片 ============ */
.cards-row .column{margin-bottom:22px;}
.glass-card{
 height:100%;position:relative;overflow:hidden;padding:24px 22px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
 transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease,background .26s ease;
}
.glass-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:var(--shadow);background:var(--surface-2);}
.glass-card h3{margin-bottom:9px;}
.glass-card p{font-size:.9rem;color:var(--muted);margin:0;}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.card-num{font-size:.76rem;letter-spacing:.2em;color:var(--muted-2);font-weight:700;}
.card-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:.8rem;color:var(--muted-2);}
/* ============ 结果对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-panel{border-radius:var(--radius);padding:26px 24px;border:1px solid var(--line);background:var(--surface-3);}
.compare-panel.bright{
 background:linear-gradient(160deg,rgba(47,224,192,.14),rgba(59,140,255,.10));
 border-color:var(--line-strong);box-shadow:var(--glow);
}
.compare-panel h3{display:flex;align-items:center;gap:10px;font-size:1.06rem;}
.compare-list li{
 display:flex;gap:10px;align-items:flex-start;padding:11px 0;font-size:.9rem;color:var(--muted);
 border-bottom:1px dashed rgba(96,166,255,.14);
}
.compare-list li:last-child{border-bottom:0;}
.compare-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--muted-2);}
.compare-panel.bright .compare-list li::before{background:var(--primary);box-shadow:0 0 8px var(--primary);}
.compare-panel.bright .compare-list li{color:#d7e6ff;}
/* ============ 里程碑时间线 ============ */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
 content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;
 background:linear-gradient(180deg,var(--primary),rgba(59,140,255,.42),transparent);
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
 content:"";position:absolute;left:-32px;top:8px;width:10px;height:10px;border-radius:50%;
 background:var(--bg);border:2px solid var(--primary);box-shadow:0 0 12px rgba(47,224,192,.7);
}
.tl-step{font-size:.74rem;letter-spacing:.16em;color:var(--primary);font-weight:700;}
.tl-item h3{font-size:1rem;margin:5px 0 7px;}
.tl-item p{margin:0;font-size:.9rem;color:var(--muted);max-width:760px;}
/* ============ 资讯列表 ============ */
.news-list{display:grid;gap:12px;}
.news-item{
 display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
 padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius-s);
 background:var(--surface-3);
 transition:transform .24s ease,border-color .24s ease,background .24s ease,box-shadow .24s ease;
}
.news-item:hover{transform:translateX(5px);border-color:var(--line-strong);background:var(--surface-2);box-shadow:var(--shadow-s);}
.news-idx{font-size:.8rem;font-weight:700;color:var(--muted-2);font-variant-numeric:tabular-nums;}
.news-item h3{font-size:.98rem;margin:0 0 5px;}
.news-item p{margin:0;font-size:.83rem;color:var(--muted-2);}
.news-item:hover h3{color:var(--primary);}
.news-meta{display:flex;flex-direction:column;align-items:flex-end;gap:7px;font-size:.76rem;color:var(--muted-2);white-space:nowrap;}
/* ============ 保障卡 ============ */
.guard-card{display:flex;gap:16px;align-items:flex-start;}
.guard-mark{
 flex:0 0 auto;width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
 font-size:.95rem;font-weight:800;color:var(--primary);
 background:rgba(47,224,192,.10);border:1px solid rgba(47,224,192,.26);
}
/* ============ 快速解答 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.quick-card{
 padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);
 background:var(--surface-2);position:relative;overflow:hidden;
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.quick-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-s);}
.quick-mark{font-size:1.5rem;font-weight:800;line-height:1;color:rgba(47,224,192,.4);margin-bottom:10px;}
.quick-card h3{font-size:1rem;margin-bottom:8px;}
.quick-card p{margin:0;font-size:.89rem;color:var(--muted);}
/* ============ FAQ ============ */
.faq-item{
 background:var(--surface-3);border:1px solid var(--line);border-radius:var(--radius-s);
 margin-bottom:12px;overflow:hidden;transition:border-color .24s ease,background .24s ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{background:var(--surface-2);border-color:var(--line-strong);}
.faq-item summary{
 cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:18px 22px;font-weight:600;color:#fff;font-size:.98rem;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--primary);font-size:1.3rem;line-height:1;transition:transform .25s ease;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 22px 20px;color:var(--muted);font-size:.92rem;line-height:1.88;}
/* ============ 订阅转化 ============ */
.subscribe-wrap{
 display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);gap:32px;align-items:start;
 padding:34px;border-radius:var(--radius-l);border:1px solid var(--line-strong);
 background:linear-gradient(150deg,rgba(47,224,192,.11),rgba(59,140,255,.11));
 box-shadow:var(--shadow);
}
.subscribe-wrap h2{margin-bottom:12px;}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--muted);padding:7px 0;}
.point-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);}
.form-panel{background:rgba(5,12,26,.62);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:0;}
.field label{display:block;font-size:.84rem;color:var(--muted);margin-bottom:7px;}
.field input,.field select{
 width:100%;padding:12px 15px;border-radius:var(--radius-s);
 background:rgba(6,14,30,.8);border:1px solid var(--line);color:var(--text);
 transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field input::placeholder{color:var(--muted-2);}
.field input:hover,.field select:hover{border-color:rgba(96,206,255,.34);}
.field input:focus,.field select:focus{outline:none;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(47,224,192,.16);background:rgba(8,18,38,.9);}
.check-grid{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px;}
.check-pill{position:relative;display:inline-flex;}
.check-pill input{position:absolute;opacity:0;width:0;height:0;pointer-events:none;}
.check-pill span{
 display:inline-block;padding:8px 16px;border-radius:999px;border:1px solid var(--line);
 color:var(--muted);font-size:.85rem;cursor:pointer;
 transition:color .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.check-pill span:hover{color:#fff;border-color:var(--line-strong);}
.check-pill input:checked + span{
 color:#04211c;font-weight:600;border-color:transparent;
 background:linear-gradient(135deg,var(--accent),var(--primary));
 box-shadow:0 8px 22px rgba(47,224,192,.32);
}
.check-pill input:focus-visible + span{outline:2px solid var(--primary);outline-offset:2px;}
.form-note{font-size:.8rem;color:var(--muted-2);margin:16px 0 0;line-height:1.75;}
.form-span-2{grid-column:1 / -1;}
/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(3,8,18,.88);padding:56px 0 26px;margin-top:16px;}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.foot-brand strong{color:#fff;font-size:1.05rem;display:block;}
.foot-brand em{font-style:normal;font-size:.72rem;letter-spacing:.16em;color:var(--muted-2);display:block;}
.foot-desc{color:var(--muted-2);font-size:.88rem;line-height:1.86;margin:0;max-width:520px;}
.foot-col h4{font-size:.92rem;color:#fff;margin:0 0 14px;letter-spacing:.06em;}
.foot-col ul{list-style:none;margin:0;padding:0;}
.foot-col li{margin-bottom:9px;}
.foot-col a{font-size:.88rem;color:var(--muted);}
.foot-col a:hover{color:var(--primary);}
.foot-bottom{
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
 font-size:.82rem;color:var(--muted-2);
}
.foot-bottom a{color:var(--muted);}
/* ============ 响应式 ============ */
@media (max-width:1100px){
 .hero-grid{grid-template-columns:1fr;}
 .metrics{grid-template-columns:repeat(2,1fr);}
 .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:860px){
 .nav-wrap{flex-wrap:wrap;}
 .nav-toggle{display:inline-flex;}
 .phase-chip{margin-left:auto;}
 .main-nav{
  position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;
  gap:4px;padding:12px 16px 16px;background:rgba(5,11,24,.98);
  border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none;
 }
 .main-nav.open{display:flex;}
 .main-nav a{padding:12px 14px;border-radius:var(--radius-s);}
 .quick-grid{grid-template-columns:1fr;}
 .subscribe-wrap{grid-template-columns:1fr;padding:26px;}
}
@media (max-width:768px){
 .section{padding:54px 0;}
 .section--tight{padding:38px 0;}
 .compare-grid{grid-template-columns:1fr;}
 .form-grid{grid-template-columns:1fr;}
 .news-item{grid-template-columns:auto 1fr;gap:12px;}
 .news-meta{grid-column:2;flex-direction:row;align-items:center;justify-content:flex-start;gap:12px;}
 .timeline{padding-left:26px;}
 .tl-item::before{left:-24px;}
 .hero{padding:44px 0 36px;}
}
@media (max-width:520px){
 .metrics{grid-template-columns:1fr;}
 .foot-grid{grid-template-columns:1fr;}
 .foot-bottom{flex-direction:column;}
 .brand-text em{display:none;}
 .btn{width:100%;}
 .hero-actions{flex-direction:column;}
 .feature-stats{grid-template-columns:1fr 1fr;}
 .form-panel{padding:20px 18px;}
}