/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#1FE0B5;
  --c-primary-bright:#39F0C6;
  --c-primary-dim:rgba(31,224,181,.14);
  --c-accent:#FFB45C;
  --bg-deep:#06131F;
  --bg-mid:#0A1B2A;
  --bg-panel:#0D2233;
  --glass:rgba(13,32,48,.58);
  --glass-strong:rgba(13,32,48,.9);
  --line:rgba(143,246,225,.14);
  --line-soft:rgba(157,178,196,.16);
  --txt-1:#EAF7FF;
  --txt-2:#9DB2C4;
  --txt-3:#6F8699;
  --ok:#35D07F;
  --warn:#FF6B6B;
  --r-card:18px;
  --r-btn:11px;
  --r-pill:999px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 30px rgba(0,0,0,.26);
  --glow:0 0 0 1px rgba(31,224,181,.35), 0 10px 30px rgba(31,224,181,.22);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --num-font:"DIN Alternate","Bahnschrift",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  color:var(--txt-1);
  background-color:var(--bg-deep);
  background-image:
    radial-gradient(1100px 560px at 10% -12%, rgba(31,224,181,.13), transparent 62%),
    radial-gradient(880px 480px at 102% 2%, rgba(255,180,92,.09), transparent 58%),
    linear-gradient(180deg,#06131F 0%,#0A1B2A 46%,#06131F 100%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(143,246,225,.045) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(90deg, rgba(143,246,225,.045) 0 1px, transparent 1px 72px);
  opacity:.5;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);}
a:hover{color:var(--c-primary-bright);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:inherit;}
button{border:0;background:none;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}
::selection{background:rgba(31,224,181,.32);color:#fff;}

/* ============ 通用版式 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;letter-spacing:.14em;font-weight:600;
  color:var(--c-primary);text-transform:uppercase;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-dim);border:1px solid var(--line);
  margin-bottom:18px;
}
h1{font-size:clamp(28px,5vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3.2vw,36px);line-height:1.28;font-weight:800;letter-spacing:-.01em;}
h3{font-size:clamp(18px,2vw,22px);line-height:1.4;font-weight:700;}
h4{font-size:1rem;font-weight:700;}
.section-desc{color:var(--txt-2);font-size:1.02rem;margin-top:14px;max-width:680px;}
.num{font-family:var(--num-font);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-primary);font-weight:600;font-size:.95rem;
  text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;
  text-decoration-color:rgba(31,224,181,.4);
}
.link-arrow i{transition:transform .25s var(--ease);font-size:.85em;}
.link-arrow:hover{color:var(--c-accent);text-decoration-color:rgba(255,180,92,.5);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:1rem;font-weight:600;line-height:1.2;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary) 0%,#16c9a2 100%);
  color:#04231C;font-weight:700;
  box-shadow:0 0 0 1px rgba(31,224,181,.4), 0 12px 30px rgba(31,224,181,.26);
}
.btn-primary:hover{
  transform:translateY(-2px);
  color:#04231C;
  background:linear-gradient(135deg,var(--c-primary-bright) 0%,#1ad6ac 100%);
  box-shadow:0 0 0 1px rgba(31,224,181,.6), 0 18px 40px rgba(31,224,181,.36);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,181,.4),0 8px 20px rgba(31,224,181,.22);}
.btn-ghost{
  background:rgba(13,32,48,.5);
  border-color:var(--line);
  color:var(--txt-1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--c-primary);color:var(--c-primary-bright);background:rgba(31,224,181,.08);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 18px;font-size:.92rem;}
.btn-text{
  background:none;border:0;color:var(--txt-2);padding:14px 6px;font-size:.98rem;
  text-decoration:underline;text-underline-offset:5px;text-decoration-color:rgba(157,178,196,.45);
}
.btn-text:hover{color:var(--c-accent);text-decoration-color:rgba(255,180,92,.6);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  --h-top:68px;--h-ch:52px;
  background:rgba(6,19,31,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,19,31,.95);box-shadow:0 14px 34px rgba(0,0,0,.4);--h-top:54px;--h-ch:46px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--h-top);transition:height .28s var(--ease);}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--c-primary) 0%,#0fb994 100%);
  color:#04231C;font-weight:800;font-size:1.05rem;
  box-shadow:0 6px 18px rgba(31,224,181,.3);
  transition:width .28s var(--ease),height .28s var(--ease),font-size .28s var(--ease);
}
.is-scrolled .brand-mark{width:30px;height:30px;flex-basis:30px;font-size:.95rem;}
.brand-text{
  font-size:1.08rem;font-weight:800;letter-spacing:.01em;color:var(--txt-1);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:font-size .28s var(--ease);
}
.is-scrolled .brand-text{font-size:1rem;}
.brand:hover .brand-text{color:var(--c-primary-bright);}
.topbar-tools{display:flex;align-items:center;gap:12px;}
.search-box{
  display:flex;align-items:center;gap:9px;
  padding:9px 15px;border-radius:var(--r-pill);
  background:rgba(13,32,48,.6);border:1px solid var(--line-soft);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.search-box i{color:var(--txt-3);font-size:.9rem;}
.search-box input{
  border:0;background:none;outline:none;width:190px;
  font-size:.92rem;color:var(--txt-1);padding:0;
}
.search-box input::placeholder{color:var(--txt-3);}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,224,181,.16);background:rgba(13,32,48,.85);}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(13,32,48,.6);border:1px solid var(--line-soft);color:var(--txt-2);
  transition:.22s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:rgba(31,224,181,.08);}
.nav-toggle{display:none;}
.channelbar{border-top:1px solid rgba(143,246,225,.08);transition:height .28s var(--ease);}
.channelbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--h-ch);transition:height .28s var(--ease);}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  display:inline-block;padding:7px 15px;border-radius:var(--r-pill);
  font-size:.95rem;font-weight:600;color:var(--txt-2);white-space:nowrap;
  border:1px solid transparent;transition:.22s var(--ease);
}
.channel-list a:hover{color:var(--txt-1);background:rgba(31,224,181,.09);}
.channel-list a.active{
  color:#04231C;background:linear-gradient(135deg,var(--c-primary) 0%,#17cba5 100%);
  box-shadow:0 6px 18px rgba(31,224,181,.24);
}
.trend-chips{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.chips-label{font-size:.78rem;color:var(--txt-3);letter-spacing:.1em;}
.chip{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  font-size:.8rem;color:var(--txt-2);
  background:rgba(13,32,48,.62);border:1px solid var(--line-soft);
  transition:.22s var(--ease);white-space:nowrap;
}
.chip:hover{color:var(--c-accent);border-color:rgba(255,180,92,.5);background:rgba(255,180,92,.1);}

/* ============ Hero ============ */
.hero{
  position:relative;padding:78px 0 92px;overflow:hidden;
  background-image:
    linear-gradient(180deg,rgba(6,19,31,.9) 0%,rgba(6,19,31,.72) 45%,rgba(6,19,31,.96) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;left:-140px;bottom:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,181,.2) 0%,transparent 68%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;position:relative;z-index:2;}
.hero-copy h1{margin-bottom:20px;}
.hero-copy h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:var(--txt-2);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:.93rem;color:var(--txt-2);}
.hero-points i{color:var(--c-primary);font-size:.85rem;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:22px;border:1px solid var(--line);
  box-shadow:var(--shadow);object-fit:cover;aspect-ratio:4/3;
  background:var(--bg-panel);
}
.hero-float{
  position:absolute;left:-18px;bottom:26px;
  display:flex;align-items:center;gap:12px;
  padding:14px 20px;border-radius:16px;
  background:var(--glass-strong);border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-soft);
}
.hero-float .dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px rgba(53,208,127,.85);}
.hero-float strong{display:block;font-size:.95rem;font-weight:700;}
.hero-float span{font-size:.78rem;color:var(--txt-3);}

/* ============ 疑问区 ============ */
.issue-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.issue-card{
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.issue-card:hover{transform:translateY(-4px);border-color:rgba(31,224,181,.45);box-shadow:0 16px 40px rgba(0,0,0,.34);}
.issue-num{
  display:inline-block;font-family:var(--num-font);font-size:1.5rem;font-weight:700;
  color:var(--c-primary);opacity:.9;margin-bottom:14px;letter-spacing:.02em;
}
.issue-card h3{font-size:1.06rem;margin-bottom:10px;line-height:1.5;}
.issue-card p{font-size:.9rem;color:var(--txt-3);line-height:1.65;}

/* ============ 方案卡 ============ */
.plan-grid{--xy-gutter:1.5rem;--xy-gutter-half:.75rem;}
.plan-grid .cell{margin-bottom:24px;}
.plan-card{
  height:100%;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  display:flex;flex-direction:column;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(31,224,181,.5);box-shadow:0 20px 48px rgba(0,0,0,.4);}
.plan-card--wide{flex-direction:row;align-items:stretch;}
.plan-card--wide .plan-img{width:44%;object-fit:cover;aspect-ratio:auto;height:100%;min-height:230px;}
.plan-card--wide .plan-body{width:56%;}
.plan-img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-panel);}
.plan-body{padding:28px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.plan-icon{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:rgba(31,224,181,.14);color:var(--c-primary);font-size:1.1rem;
  border:1px solid rgba(31,224,181,.28);
}
.plan-icon--amber{background:rgba(255,180,92,.14);color:var(--c-accent);border-color:rgba(255,180,92,.3);}
.plan-card h3{font-size:1.12rem;}
.plan-card p{font-size:.93rem;color:var(--txt-2);line-height:1.7;}
.plan-body .link-arrow{margin-top:auto;padding-top:6px;}

/* ============ 数据区 ============ */
.stats-section{
  background:
    linear-gradient(180deg,rgba(6,19,31,.82),rgba(10,27,42,.92)),
    url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.stat-grid{--xy-gutter:1.5rem;--xy-gutter-half:.75rem;}
.stat-grid .cell{margin-bottom:24px;}
.stat-card{
  position:relative;height:100%;padding:30px 24px 26px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  overflow:hidden;text-align:left;
}
.stat-card::before{
  content:"";position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,181,.85),transparent);
}
.stat-num{
  font-family:var(--num-font);font-variant-numeric:tabular-nums;
  font-size:clamp(34px,4.4vw,48px);font-weight:700;line-height:1;
  color:var(--c-primary);text-shadow:0 0 26px rgba(31,224,181,.35);
}
.stat-unit{font-size:1rem;font-weight:700;color:var(--c-primary);margin-left:6px;}
.stat-label{margin-top:14px;font-size:1rem;font-weight:700;color:var(--txt-1);}
.stat-note{margin-top:6px;font-size:.85rem;color:var(--txt-3);}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,224,181,.5);box-shadow:0 20px 46px rgba(0,0,0,.4);}
.news-thumb{display:block;overflow:hidden;background:var(--bg-panel);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:11px;flex:1;}
.tag{
  align-self:flex-start;padding:4px 11px;border-radius:var(--r-pill);
  font-size:.76rem;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);background:rgba(31,224,181,.13);
  border:1px solid rgba(31,224,181,.26);
}
.news-title{font-size:1.06rem;line-height:1.5;}
.news-title a{display:block;}
.news-summary{
  font-size:.9rem;color:var(--txt-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;border-top:1px solid rgba(157,178,196,.12);}
.news-date{font-family:var(--num-font);font-size:.82rem;color:var(--txt-3);}
.news-more{font-size:.85rem;color:var(--c-primary);font-weight:600;}
.empty-state{
  grid-column:1/-1;padding:52px 24px;text-align:center;border-radius:var(--r-card);
  background:var(--glass);border:1px dashed rgba(143,246,225,.28);color:var(--txt-2);
}
.empty-state i{display:block;font-size:1.6rem;color:var(--txt-3);margin-bottom:12px;}

/* ============ 表单弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:200;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(3,10,17,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.modal-mask.is-open{display:flex;}
.modal-box{
  width:100%;max-width:560px;max-height:90vh;overflow-y:auto;
  padding:32px;border-radius:20px;
  background:var(--glass-strong);border:1px solid var(--line);
  box-shadow:var(--shadow);
  animation:modalUp .3s var(--ease);
}
@keyframes modalUp{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:translateY(0);}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.modal-close{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:var(--txt-2);background:rgba(13,32,48,.7);border:1px solid var(--line-soft);}
.modal-close:hover{color:var(--warn);border-color:rgba(255,107,107,.5);}
.modal-desc{font-size:.9rem;color:var(--txt-3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:.86rem;color:var(--txt-2);margin-bottom:7px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:11px;
  background:rgba(9,24,38,.85);border:1px solid var(--line-soft);
  color:var(--txt-1);font-size:.95rem;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(31,224,181,.18);
}
.field input::placeholder,.field textarea::placeholder{color:var(--txt-3);}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:18px 0 22px;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--c-primary);flex:0 0 18px;}
.check-row label{font-size:.85rem;color:var(--txt-3);line-height:1.6;font-weight:400;}
.form-note{font-size:.8rem;color:var(--txt-3);margin-top:14px;line-height:1.7;}
.form-feedback{display:none;margin-top:14px;padding:11px 14px;border-radius:10px;font-size:.88rem;background:rgba(53,208,127,.13);border:1px solid rgba(53,208,127,.4);color:var(--ok);}
.form-feedback.is-visible{display:block;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  margin-bottom:12px;border-radius:14px;overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:border-color .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(31,224,181,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 24px;min-height:58px;text-align:left;
  font-size:1rem;font-weight:600;color:var(--txt-1);
}
.faq-q .plus{
  width:24px;height:24px;flex:0 0 24px;position:relative;border-radius:50%;
  border:1px solid rgba(31,224,181,.4);transition:transform .3s var(--ease),background-color .3s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:11px;height:1.5px;}
.faq-q .plus::after{width:1.5px;height:11px;transition:transform .3s var(--ease);}
.faq-item.is-open .faq-q .plus{transform:rotate(90deg);background:rgba(31,224,181,.14);}
.faq-item.is-open .faq-q .plus::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s var(--ease);}
.faq-a p{padding:0 24px 22px;font-size:.93rem;color:var(--txt-2);line-height:1.8;}

/* ============ 底部 CTA ============ */
.cta-section{padding:84px 0;}
.cta-box{
  position:relative;overflow:hidden;border-radius:24px;padding:56px 52px;
  background:
    linear-gradient(135deg,rgba(31,224,181,.16),rgba(13,32,48,.86) 46%,rgba(255,180,92,.1)),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-box h2{margin-bottom:12px;}
.cta-box p{color:var(--txt-2);max-width:560px;font-size:.98rem;}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;padding:72px 0 0;
  background:linear-gradient(180deg,rgba(6,19,31,.6),#050F19 70%);
  border-top:1px solid var(--line);margin-top:20px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,181,.75),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col h4{font-size:.95rem;margin-bottom:16px;color:var(--txt-1);letter-spacing:.02em;}
.footer-col p,.footer-col li{font-size:.88rem;color:var(--txt-3);line-height:1.85;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:32px;height:32px;flex-basis:32px;border-radius:10px;}
.footer-brand span{font-weight:800;font-size:1.02rem;color:var(--txt-1);}
.footer-links li{margin-bottom:9px;}
.footer-links a{color:var(--txt-2);font-size:.88rem;}
.footer-links a:hover{color:var(--c-primary-bright);}
.footer-note{font-size:.82rem;color:var(--txt-3);line-height:1.8;margin-top:12px;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(157,178,196,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:.82rem;color:var(--txt-3);}
.footer-bottom a{color:var(--txt-3);}
.footer-bottom a:hover{color:var(--c-primary);}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:14px;display:none;place-items:center;
  background:var(--glass-strong);border:1px solid var(--line);color:var(--c-primary);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-soft);transition:.24s var(--ease);
}
.to-top.is-visible{display:grid;}
.to-top:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(31,224,181,.45),0 16px 34px rgba(0,0,0,.4);}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .hero-grid{gap:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .issue-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:30px;}
}
@media screen and (max-width:991px){
  .section{padding:76px 0;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .hero-visual img{aspect-ratio:16/9;}
  .hero-float{left:14px;bottom:14px;}
  .plan-card--wide{flex-direction:column;}
  .plan-card--wide .plan-img,.plan-card--wide .plan-body{width:100%;}
  .plan-card--wide .plan-img{min-height:0;aspect-ratio:16/9;}
  .cta-box{padding:44px 34px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .channelbar-inner{height:auto;padding:10px 0;}
  .channel-list{
    display:none;flex-direction:column;align-items:stretch;gap:6px;width:100%;
  }
  .channelbar.is-open .channel-list{display:flex;}
  .channel-list a{padding:11px 14px;border-radius:12px;background:rgba(13,32,48,.6);}
  .trend-chips{display:none;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .btn-text{width:100%;text-align:center;}
  .hero-points{gap:10px 18px;}
  .news-grid{grid-template-columns:1fr;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:36px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;justify-content:center;}
  .modal-box{padding:24px 20px;border-radius:20px 20px 0 0;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-mask.is-open .modal-box{animation:modalSlide .32s var(--ease);}
  @keyframes modalSlide{from{transform:translateY(60px);opacity:.6;}to{transform:translateY(0);opacity:1;}}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid rgba(157,178,196,.12);padding:16px 0;}
  .footer-col h4{margin-bottom:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;}
  .footer-col h4::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.72rem;color:var(--txt-3);transition:transform .26s var(--ease);}
  .footer-col.is-open h4::after{transform:rotate(180deg);}
  .footer-body{display:none;padding-top:14px;}
  .footer-col.is-open .footer-body{display:block;}
  .footer-bottom{margin-top:26px;flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:575px){
  .container{padding:0 16px;}
  .issue-grid{grid-template-columns:1fr;}
  .stat-num{font-size:34px;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;}
  .brand-text{font-size:.98rem;}
  .to-top{right:14px;bottom:16px;width:42px;height:42px;}
}
@supports not ((backdrop-filter:blur(10px)) or (-webkit-backdrop-filter:blur(10px))){
  .site-header{background:rgba(6,19,31,.97);}
  .issue-card,.plan-card,.news-card,.stat-card,.faq-item,.modal-box,.search-box,.icon-btn{background:rgba(13,32,48,.94);}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#06131F;
  --c-bg-2:#0A1B2A;
  --c-surface:#0D2233;
  --c-glass:rgba(13,32,48,.58);
  --c-glass-2:rgba(13,32,48,.78);
  --c-line:rgba(143,246,225,.14);
  --c-line-soft:rgba(255,255,255,.08);
  --c-primary:#1FE0B5;
  --c-primary-soft:#7CF2D8;
  --c-primary-deep:#0FA88A;
  --c-accent:#FFB45C;
  --c-text:#EAF7FF;
  --c-text-2:#9DB2C4;
  --c-text-3:#6F8699;
  --c-ok:#35D07F;
  --c-warn:#FF6B6B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-btn:11px;
  --shadow-sm:0 8px 24px rgba(0,0,0,.28);
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(31,224,181,.28);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Segoe UI",system-ui,sans-serif;
  --container:1240px;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--c-text);
  background:
    radial-gradient(1100px 560px at 8% -8%, rgba(31,224,181,.12), transparent 62%),
    radial-gradient(900px 520px at 102% 4%, rgba(255,180,92,.09), transparent 58%),
    linear-gradient(180deg,#06131F 0%, #0A1B2A 60%, #06131F 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:750;line-height:1.3;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
hr{border:0;border-top:1px solid var(--c-line-soft);margin:32px 0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(31,224,181,.32);color:#04131C;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-weight:650;font-size:16px;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .25s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#1FE0B5 0%, #12B995 100%);
  color:#04131C;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(31,224,181,.45);color:#04131C;filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(31,224,181,.32);}
.btn-ghost{
  background:rgba(13,32,48,.5);border-color:var(--c-line);color:var(--c-text);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.btn-ghost:hover{border-color:rgba(31,224,181,.72);color:var(--c-primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(31,224,181,.13);color:var(--c-primary);
  border:1px solid rgba(31,224,181,.28);
}
.badge-warm{background:rgba(255,180,92,.14);color:var(--c-accent);border-color:rgba(255,180,92,.3);}
.badge-soft{background:rgba(157,178,196,.12);color:var(--c-text-2);border-color:rgba(157,178,196,.22);}

.glass{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px) saturate(135%);
  -webkit-backdrop-filter:blur(16px) saturate(135%);
  box-shadow:var(--shadow);
}
.section{padding:64px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,3vw,34px);}
.section-head p{margin-top:10px;color:var(--c-text-2);font-size:16px;}

/* ============ 页头与导航 ============ */
.site-header{
  position:sticky;top:0;z-index:300;
  background:rgba(6,19,31,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(143,246,225,.10);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(6,19,31,.96);box-shadow:0 12px 34px rgba(0,0,0,.42);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;transition:height .25s ease;}
.site-header.is-scrolled .topbar-inner{height:58px;}

.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;font-size:17px;font-weight:800;
  background:linear-gradient(135deg,#1FE0B5 0%, #0FA88A 100%);
  color:#04131C;box-shadow:0 6px 18px rgba(31,224,181,.36);
  transition:width .25s ease,height .25s ease,flex-basis .25s ease;
}
.site-header.is-scrolled .brand-mark{width:30px;height:30px;flex-basis:30px;font-size:15px;}
.brand-text{letter-spacing:.4px;white-space:nowrap;}

.topbar-tools{display:flex;align-items:center;gap:10px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;min-width:236px;
  border-radius:999px;border:1px solid var(--c-line-soft);
  background:rgba(13,32,48,.6);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box i{color:var(--c-text-3);font-size:14px;}
.search-box input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-text-3);}
.search-box:focus-within{border-color:rgba(31,224,181,.65);box-shadow:0 0 0 3px rgba(31,224,181,.14);}

.icon-btn{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  border:1px solid var(--c-line-soft);background:rgba(13,32,48,.6);
  color:var(--c-text-2);font-size:15px;transition:all .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(31,224,181,.55);transform:translateY(-1px);}
.icon-btn:active{transform:translateY(0);}
.nav-toggle{display:none;}

.channelbar{border-top:1px solid rgba(255,255,255,.05);}
.channelbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:52px;}
.channel-list{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-list a{
  display:inline-block;padding:7px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--c-text-2);white-space:nowrap;
  transition:all .2s ease;
}
.channel-list a:hover{color:var(--c-text);background:rgba(255,255,255,.05);}
.channel-list a.active{color:#04131C;background:linear-gradient(135deg,#1FE0B5,#12B995);box-shadow:0 6px 16px rgba(31,224,181,.28);}

.trend-chips{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.trend-chips::-webkit-scrollbar{display:none;}
.chips-label{font-size:13px;color:var(--c-text-3);white-space:nowrap;}
.chip{
  padding:4px 12px;border-radius:999px;font-size:13px;white-space:nowrap;
  color:var(--c-text-2);border:1px solid var(--c-line-soft);background:rgba(13,32,48,.5);
  transition:all .2s ease;
}
.chip:hover{color:var(--c-primary);border-color:rgba(31,224,181,.55);background:rgba(31,224,181,.08);}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;padding:44px 0 34px;overflow:hidden;
  border-bottom:1px solid var(--c-line-soft);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg, rgba(6,19,31,.96) 0%, rgba(6,19,31,.86) 46%, rgba(6,19,31,.7) 100%);
}
.article-hero .container{position:relative;z-index:1;}

.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--c-text-3);margin-bottom:18px;}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);opacity:.7;}
.breadcrumb .current{color:var(--c-text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-title{
  font-size:clamp(28px,5vw,50px);
  line-height:1.24;
  max-width:960px;
  letter-spacing:.1px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;color:var(--c-text-2);font-size:14px;}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--c-primary);font-size:13px;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-text-3);display:inline-block;}

/* ============ 文章主体栅格 ============ */
.article-main{padding:52px 0 68px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:40px;align-items:start;}

.article-card{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px) saturate(135%);
  -webkit-backdrop-filter:blur(16px) saturate(135%);
  box-shadow:var(--shadow);
  padding:30px 34px 40px;
  min-width:0;
}

.article-cover{
  margin:0 0 28px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--c-line-soft);
  background:linear-gradient(135deg,#0D2233,#0A1B2A);
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/8;object-fit:cover;}

.article-body{max-width:820px;font-size:17px;line-height:1.88;color:#DCEBF5;word-wrap:break-word;}
.article-body > * + *{margin-top:20px;}
.article-body h2{
  font-size:clamp(21px,2.6vw,28px);margin-top:44px;padding-left:16px;position:relative;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,#1FE0B5,#0FA88A);
  box-shadow:0 0 14px rgba(31,224,181,.6);
}
.article-body h3{font-size:clamp(18px,2.2vw,22px);margin-top:32px;color:var(--c-text);}
.article-body h4{font-size:17px;margin-top:24px;color:var(--c-primary-soft);}
.article-body p{color:#CFE2EE;}
.article-body strong{color:#FFFFFF;font-weight:700;}
.article-body em{color:var(--c-accent);font-style:normal;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(31,224,181,.42);}
.article-body a:hover{color:var(--c-accent);border-bottom-color:rgba(255,180,92,.6);}
.article-body img{border-radius:var(--r-md);margin:26px auto;border:1px solid var(--c-line-soft);height:auto;}
.article-body ul,.article-body ol{padding-left:6px;}
.article-body li{position:relative;padding-left:22px;margin-top:10px;color:#CFE2EE;}
.article-body ul > li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 10px rgba(31,224,181,.55);
}
.article-body ol{counter-reset:num;}
.article-body ol > li{counter-increment:num;}
.article-body ol > li::before{
  content:counter(num);position:absolute;left:0;top:.28em;
  width:18px;height:18px;border-radius:6px;display:grid;place-items:center;
  font-size:11px;font-weight:700;font-family:var(--font-num);
  background:rgba(31,224,181,.14);color:var(--c-primary);
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;border-left:3px solid var(--c-primary);
  background:rgba(31,224,181,.06);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--c-text-2);
}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;border-radius:var(--r-sm);
}
.article-body thead th{background:rgba(31,224,181,.1);color:var(--c-text);}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--c-line-soft);text-align:left;}
.article-body code{
  font-family:var(--font-num);font-size:14px;padding:2px 7px;border-radius:6px;
  background:rgba(31,224,181,.12);color:var(--c-primary-soft);
}
.article-body pre{
  background:rgba(4,16,26,.85);border:1px solid var(--c-line-soft);border-radius:var(--r-md);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;padding:0;color:#BCE9DC;}
.article-body hr{border-top:1px solid var(--c-line-soft);margin:34px 0;}

.empty-state{padding:52px 20px;text-align:center;}
.empty-state i{font-size:38px;color:var(--c-text-3);}
.empty-state h3{margin-top:18px;font-size:22px;}
.empty-state p{margin-top:10px;color:var(--c-text-2);}
.empty-state .btn{margin-top:24px;}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px) saturate(135%);
  -webkit-backdrop-filter:blur(16px) saturate(135%);
  box-shadow:var(--shadow-sm);
  padding:22px 22px 24px;
}
.side-card h3{
  font-size:16px;display:flex;align-items:center;gap:9px;
  padding-bottom:14px;border-bottom:1px solid var(--c-line-soft);margin-bottom:14px;
}
.side-card h3 i{color:var(--c-primary);font-size:14px;}
.toc-list{max-height:340px;overflow-y:auto;padding-right:4px;}
.toc-list a{
  display:block;font-size:14px;color:var(--c-text-2);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:all .18s ease;line-height:1.5;
}
.toc-list a:hover{color:var(--c-primary);background:rgba(31,224,181,.07);border-left-color:rgba(31,224,181,.6);}
.toc-list .lvl-3 a{padding-left:22px;font-size:13px;color:var(--c-text-3);}
.toc-list .lvl-3 a:hover{color:var(--c-primary-soft);}

.side-links li + li{margin-top:6px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 13px;border-radius:var(--r-sm);font-size:14px;color:var(--c-text-2);
  border:1px solid transparent;background:rgba(255,255,255,.025);
  transition:all .2s ease;
}
.side-links a:hover{color:var(--c-primary);border-color:rgba(31,224,181,.4);background:rgba(31,224,181,.07);transform:translateX(3px);}
.side-links i{font-size:12px;color:var(--c-text-3);}

.side-note{font-size:13px;color:var(--c-text-3);line-height:1.7;margin-top:12px;}

/* ============ 延伸阅读 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-lg);
  backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-5px);border-color:rgba(31,224,181,.55);box-shadow:0 20px 46px rgba(0,0,0,.42),0 0 0 1px rgba(31,224,181,.18);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0D2233,#081E2C);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.05);}
.card-media .badge{position:absolute;left:12px;top:12px;backdrop-filter:blur(8px);}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.45;}
.card-body p{font-size:14px;color:var(--c-text-2);line-height:1.72;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3);}
.card-foot .more{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card:hover .card-foot .more i{transform:translateX(4px);}
.card-foot .more i{transition:transform .25s ease;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-md);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{border-color:rgba(31,224,181,.42);background:rgba(13,32,48,.72);}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;padding:16px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:17px;font-weight:650;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--font-num);font-size:24px;line-height:1;
  color:var(--c-primary);transition:transform .28s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--c-primary);}
.faq-body{padding:0 20px 18px;color:var(--c-text-2);font-size:15px;line-height:1.8;animation:fadeIn .3s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--c-line);
  padding:48px 40px;
  background-image:linear-gradient(100deg, rgba(6,19,31,.94), rgba(10,27,42,.78)), url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle, rgba(31,224,181,.28), transparent 68%);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);max-width:620px;}
.cta-band p{margin-top:14px;color:var(--c-text-2);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-link{display:inline-flex;align-items:center;gap:7px;font-size:15px;color:var(--c-primary);border-bottom:1px solid rgba(31,224,181,.4);padding-bottom:2px;}
.cta-link:hover{color:var(--c-accent);border-bottom-color:rgba(255,180,92,.6);}

/* ============ 表单弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:600;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:rgba(3,10,17,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.modal-mask.is-open{display:flex;animation:fadeIn .22s ease;}
.modal-panel{
  width:100%;max-width:520px;max-height:90vh;overflow-y:auto;
  background:linear-gradient(180deg, rgba(13,32,48,.96), rgba(9,24,36,.98));
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:0 30px 80px rgba(0,0,0,.6);padding:28px 28px 30px;
  animation:riseIn .3s ease;
}
@keyframes riseIn{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:none;}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:6px;}
.modal-head h3{font-size:21px;}
.modal-head p{margin-top:8px;font-size:14px;color:var(--c-text-2);}
.modal-close{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:var(--c-text-3);border:1px solid var(--c-line-soft);}
.modal-close:hover{color:var(--c-primary);border-color:rgba(31,224,181,.5);}
.form-grid{display:grid;gap:16px;margin-top:20px;}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:7px;}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(6,19,31,.72);border:1px solid var(--c-line-soft);
  color:var(--c-text);font-size:15px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:92px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(31,224,181,.75);box-shadow:0 0 0 3px rgba(31,224,181,.16);
}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--c-text-2);line-height:1.7;}
.agree input{margin-top:3px;accent-color:#1FE0B5;width:16px;height:16px;}
.form-tip{font-size:12.5px;color:var(--c-text-3);line-height:1.7;}
.form-msg{margin-top:6px;font-size:13.5px;color:var(--c-ok);display:none;}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;margin-top:24px;padding:56px 0 26px;
  background:linear-gradient(180deg, rgba(6,19,31,.6), rgba(4,13,21,.96));
  border-top:1px solid transparent;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg, transparent, rgba(31,224,181,.7), rgba(255,180,92,.4), transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;}
.footer-col h4{font-size:15px;color:var(--c-text);margin-bottom:14px;letter-spacing:.4px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-body p{font-size:14px;color:var(--c-text-2);line-height:1.85;}
.footer-links li + li{margin-top:9px;}
.footer-links a{font-size:14px;color:var(--c-text-2);}
.footer-links a:hover{color:var(--c-primary);}
.footer-note{margin-top:12px;font-size:12.5px;color:var(--c-text-3);line-height:1.75;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--c-line-soft);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-2);}
.footer-bottom a:hover{color:var(--c-primary);}

.to-top{
  position:fixed;right:22px;bottom:26px;z-index:400;
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(13,32,48,.86);border:1px solid var(--c-line);color:var(--c-primary);
  backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .28s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{background:rgba(31,224,181,.16);border-color:rgba(31,224,181,.6);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
  .related-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991px){
  .section{padding:52px 0;}
  .article-grid{grid-template-columns:1fr;}
  .article-side{position:static;top:auto;}
  .toc-list{max-height:none;}
  .article-card{padding:24px 22px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .channelbar-inner{height:auto;padding:8px 0;flex-direction:column;align-items:flex-start;gap:10px;}
  .trend-chips{padding-bottom:4px;}
  .cta-band{padding:38px 26px;}
}
@media (max-width:767px){
  .topbar-inner{height:60px;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;flex-basis:30px;font-size:15px;}
  .search-box{display:none;}
  .search-icon-btn{display:grid !important;}
  .nav-toggle{display:grid;}
  .channelbar{display:none;border-top:1px solid var(--c-line-soft);}
  .channelbar.is-open{display:block;animation:fadeIn .22s ease;}
  .channelbar-inner{flex-direction:column;align-items:stretch;gap:12px;}
  .channel-list{flex-direction:column;align-items:stretch;gap:2px;}
  .channel-list a{padding:11px 14px;border-radius:10px;font-size:15px;}
  .trend-chips{flex-wrap:wrap;overflow:visible;}
  .article-hero{padding:30px 0 26px;}
  .breadcrumb .current{max-width:100%;white-space:normal;}
  .article-main{padding:34px 0 48px;}
  .article-card{padding:20px 16px 26px;border-radius:var(--r-md);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{margin-top:34px;padding-left:13px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--c-line-soft);padding:14px 0;}
  .footer-col h4{margin-bottom:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer;}
  .footer-col h4::after{content:"+";font-family:var(--font-num);font-size:20px;color:var(--c-primary);transition:transform .25s ease;}
  .footer-col.is-open h4::after{transform:rotate(45deg);}
  .footer-col .footer-body{display:none;padding-top:12px;}
  .footer-col.is-open .footer-body{display:block;animation:fadeIn .25s ease;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-actions .btn{width:100%;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-panel{max-width:100%;border-radius:20px 20px 0 0;max-height:92vh;animation:slideUp .3s ease;}
  @keyframes slideUp{from{transform:translateY(100%);}to{transform:none;}}
  .to-top{right:14px;bottom:16px;}
}
@media (max-width:575px){
  .container{padding:0 15px;}
  .article-title{font-size:26px;}
  .article-meta{font-size:13px;gap:9px;}
  .faq-item summary{font-size:15.5px;padding:14px 16px;min-height:52px;}
  .faq-body{padding:0 16px 16px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --primary:#1FE0B5;
  --primary-strong:#42F2CD;
  --accent:#FFB45C;
  --bg:#06131F;
  --bg-2:#0A1B2A;
  --surface:#0D2233;
  --glass:rgba(13,32,48,.58);
  --glass-soft:rgba(13,32,48,.42);
  --line:rgba(143,246,225,.14);
  --line-strong:rgba(143,246,225,.32);
  --line-soft:rgba(157,178,196,.16);
  --text:#EAF7FF;
  --muted:#9DB2C4;
  --dim:#6F8699;
  --ok:#35D07F;
  --warn:#FF6B6B;
  --r-xl:22px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:11px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 28px rgba(0,0,0,.26);
  --shadow-glow:0 10px 30px rgba(31,224,181,.22);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",system-ui,-apple-system,"Segoe UI",sans-serif;
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1200px 600px at 82% -10%, rgba(31,224,181,.14), transparent 60%),
    radial-gradient(900px 520px at 8% 8%, rgba(255,180,92,.08), transparent 62%),
    linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 46%,#071725 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body.modal-open{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease,transform .22s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 22px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:900;
  background:rgba(6,19,31,.84);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background-color .28s ease;
}
.site-header.is-stuck{box-shadow:0 14px 34px rgba(0,0,0,.42);background:rgba(6,19,31,.94);}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:66px;
  transition:min-height .28s ease;
}
.site-header.is-stuck .topbar-inner{min-height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  font-weight:800;font-size:17px;color:#04211B;
  background:linear-gradient(135deg,var(--primary),#12B892 78%);
  box-shadow:0 8px 20px rgba(31,224,181,.28);
  transition:transform .28s ease;
}
.site-header.is-stuck .brand-mark{transform:scale(.94);}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.4px;white-space:nowrap;}
.topbar-tools{display:flex;align-items:center;gap:10px;}
.search-box{
  display:flex;align-items:center;gap:8px;
  padding:0 14px;height:40px;
  border:1px solid var(--line);
  border-radius:11px;
  background:var(--glass-soft);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-box i{color:var(--dim);font-size:14px;}
.search-box input{
  width:210px;border:0;background:transparent;color:var(--text);
  font-size:14px;outline:none;
}
.search-box input::placeholder{color:var(--dim);}
.search-box:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(31,224,181,.14);}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  border:1px solid var(--line);
  background:var(--glass-soft);
  color:var(--muted);
  font-size:15px;
  transition:all .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,224,181,.1);}
.nav-toggle{display:none;}

.channelbar{border-top:1px solid var(--line-soft);background:rgba(10,27,42,.5);}
.channelbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:52px;
}
.channel-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.channel-list a{
  display:inline-block;
  padding:7px 14px;
  border-radius:10px;
  border:1px solid transparent;
  color:var(--muted);
  font-size:14.5px;
  font-weight:500;
  white-space:nowrap;
}
.channel-list a:hover{color:var(--primary);background:rgba(31,224,181,.09);}
.channel-list a.active{
  color:var(--primary);
  background:rgba(31,224,181,.13);
  border-color:var(--line-strong);
}
.trend-chips{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;}
.chips-label{font-size:12.5px;color:var(--dim);letter-spacing:1px;}
.chip{
  display:inline-block;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:12.5px;
  white-space:nowrap;
}
.chip:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(31,224,181,.08);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,19,31,.74),rgba(7,23,37,.94)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(143,246,225,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(143,246,225,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  mask-image:radial-gradient(circle at 50% 30%,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,rgba(0,0,0,.9),transparent 78%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);margin-bottom:22px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span.sep{color:rgba(157,178,196,.4);}
.crumbs .current{color:var(--primary);}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:44px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(31,224,181,.1);
  color:var(--primary);font-size:13px;letter-spacing:.5px;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,4.3vw,50px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:.3px;
  margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{
  font-size:17px;color:var(--muted);
  max-width:620px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;}
.hero-stat{display:flex;flex-direction:column;gap:2px;}
.hero-stat b{
  font-family:var(--font-num);
  font-size:24px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.hero-stat span{font-size:13px;color:var(--dim);}
.hero-visual{
  position:relative;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual figcaption{
  padding:14px 18px;font-size:13px;color:var(--muted);
  border-top:1px solid var(--line-soft);
  background:rgba(6,19,31,.4);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15.5px;font-weight:600;
  letter-spacing:.3px;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#13C79E);
  color:#03211A;
  box-shadow:0 10px 26px rgba(31,224,181,.26);
}
.btn-primary:hover{
  color:#03211A;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(31,224,181,.4);
  background:linear-gradient(135deg,var(--primary-strong),#17D6A9);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(31,224,181,.28);}
.btn-ghost{
  background:var(--glass-soft);
  border-color:var(--line);
  color:var(--text);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px);background:rgba(31,224,181,.1);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}

/* ============ 指南主体：左目录 + 右列表 ============ */
.guide-main{padding:78px 0 20px;}
.guide-layout{display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start;}
.side-toc{position:sticky;top:132px;}
.toc-card{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:22px 20px;
  box-shadow:var(--shadow-soft);
}
.toc-title{
  font-size:13px;letter-spacing:2px;color:var(--dim);
  margin-bottom:14px;
}
.toc-list li{margin-bottom:4px;}
.toc-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;
  color:var(--muted);font-size:14.5px;
  border-left:2px solid transparent;
}
.toc-list a:hover{color:var(--primary);background:rgba(31,224,181,.08);}
.toc-list a.is-current{color:var(--primary);background:rgba(31,224,181,.11);border-left-color:var(--primary);}
.toc-list a i{font-size:11px;opacity:.7;}
.toc-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line-soft);}
.toc-note{margin-top:12px;font-size:12.5px;color:var(--dim);line-height:1.65;}

.guide-content{display:flex;flex-direction:column;gap:56px;}
.group-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:22px;padding-bottom:14px;border-bottom:1px solid var(--line-soft);}
.group-head h2{font-size:clamp(22px,2.5vw,30px);font-weight:700;letter-spacing:.2px;}
.group-head h2 span{
  display:inline-block;font-family:var(--font-num);
  font-size:15px;color:var(--primary);margin-right:10px;
  padding:2px 10px;border-radius:8px;background:rgba(31,224,181,.1);
  vertical-align:middle;
}
.group-head p{font-size:13.5px;color:var(--dim);max-width:340px;text-align:right;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.guide-card{
  display:flex;flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  overflow:hidden;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.guide-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.card-media{position:relative;background:linear-gradient(135deg,rgba(31,224,181,.14),rgba(255,180,92,.08));}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.9;}
.card-badge{
  position:absolute;left:14px;top:14px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;color:#03211A;font-weight:600;
  background:rgba(31,224,181,.92);
}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:19px;font-weight:700;line-height:1.45;}
.card-body p{font-size:14.5px;color:var(--muted);}
.mini-list{display:flex;flex-direction:column;gap:7px;}
.mini-list li{
  position:relative;padding-left:18px;
  font-size:13.8px;color:var(--muted);line-height:1.65;
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);opacity:.75;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.tag{
  padding:3px 11px;border-radius:999px;
  border:1px solid var(--line);
  font-size:12px;color:var(--muted);
  background:rgba(31,224,181,.06);
}
.card-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.card-link i{transition:transform .24s ease;}
.card-link:hover{color:var(--accent);}
.card-link:hover i{transform:translateX(4px);}
.guide-card--plain .card-body{padding-top:24px;}

/* ============ 流程 ============ */
.steps-section{padding:78px 0 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;
  color:var(--primary);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;margin-bottom:12px;}
.section-head p{font-size:16px;color:var(--muted);}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step-card{
  position:relative;
  padding:24px 22px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-soft);}
.step-card::before{
  content:"";position:absolute;left:0;top:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
  border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.step-num{
  font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--primary);letter-spacing:1px;margin-bottom:14px;
}
.step-icon{
  width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,224,181,.12);color:var(--primary);font-size:18px;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);}

/* ============ 设备适配表 ============ */
.device-section{padding:78px 0 0;}
.table-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  overflow-x:auto;
  box-shadow:var(--shadow-soft);
}
table.device-table{width:100%;border-collapse:collapse;min-width:640px;}
table.device-table caption{
  caption-side:top;text-align:left;
  padding:18px 22px 0;font-size:13px;color:var(--dim);
}
table.device-table th,
table.device-table td{
  padding:16px 22px;text-align:left;font-size:14.5px;
  border-bottom:1px solid var(--line-soft);
}
table.device-table th{
  color:var(--primary);font-weight:600;font-size:13.5px;
  letter-spacing:.6px;background:rgba(31,224,181,.05);
}
table.device-table td{color:var(--muted);}
table.device-table td:first-child{color:var(--text);font-weight:600;}
table.device-table tbody tr{transition:background-color .22s ease;}
table.device-table tbody tr:hover{background:rgba(31,224,181,.05);}
table.device-table tr:last-child td{border-bottom:0;}
.state-ok{color:var(--ok);font-weight:600;}
.state-warn{color:var(--accent);font-weight:600;}

/* ============ FAQ ============ */
.faq-section{padding:82px 0 0;}
.faq-list{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
}
.faq-item{border-bottom:1px solid var(--line-soft);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:14px 22px;
  background:transparent;border:0;text-align:left;
  color:var(--text);font-size:16px;font-weight:600;
  transition:background-color .22s ease,color .22s ease;
}
.faq-q:hover{background:rgba(31,224,181,.06);color:var(--primary);}
.faq-q .faq-plus{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);font-size:13px;
  transition:transform .28s ease,background-color .28s ease;
}
.faq-item.open .faq-plus{transform:rotate(45deg);background:rgba(31,224,181,.14);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease,opacity .28s ease,padding .28s ease;
  opacity:0;
}
.faq-item.open .faq-a{max-height:280px;opacity:1;padding:0 22px 18px;}
.faq-a p{font-size:14.5px;color:var(--muted);max-width:900px;}

/* ============ 底部 CTA ============ */
.cta-section{padding:82px 0 96px;}
.cta-panel{
  position:relative;
  padding:52px 46px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xl);
  background:
    radial-gradient(600px 260px at 88% 12%,rgba(31,224,181,.16),transparent 70%),
    var(--glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-panel h2{font-size:clamp(23px,3vw,32px);font-weight:700;margin-bottom:14px;}
.cta-panel p{color:var(--muted);font-size:16px;max-width:640px;margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.cta-link{font-size:15px;font-weight:600;border-bottom:1px solid rgba(31,224,181,.4);padding-bottom:2px;}
.cta-link:hover{border-color:var(--accent);}

/* ============ 弹层表单 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:1200;
  display:none;
  align-items:center;justify-content:center;
  padding:24px;
  background:rgba(3,11,18,.72);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.modal-mask.show{display:flex;}
.modal-box{
  width:100%;max-width:520px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-xl);
  background:linear-gradient(180deg,rgba(13,34,51,.96),rgba(8,24,38,.98));
  box-shadow:0 30px 70px rgba(0,0,0,.55);
  padding:28px 26px;
  max-height:88vh;overflow-y:auto;
  animation:modalIn .3s ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px;}
.modal-head h3{font-size:21px;font-weight:700;margin-bottom:6px;}
.modal-head p{font-size:13.5px;color:var(--dim);}
.modal-close{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;
  border:1px solid var(--line);background:transparent;color:var(--muted);
  transition:all .22s ease;
}
.modal-close:hover{color:var(--warn);border-color:rgba(255,107,107,.5);}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px;}
.form-row input[type="text"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea{
  width:100%;padding:11px 14px;
  border:1px solid var(--line);
  border-radius:11px;
  background:rgba(6,19,31,.6);
  color:var(--text);font-size:14.5px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.form-row textarea{min-height:96px;resize:vertical;}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--dim);}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,224,181,.16);
}
.form-row select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.6;}
.check-row input{margin-top:4px;width:16px;height:16px;accent-color:#1FE0B5;}
.form-hint{font-size:12.5px;color:var(--dim);margin-top:10px;line-height:1.6;}
.form-tip{
  display:none;
  margin-top:14px;padding:10px 14px;border-radius:10px;
  font-size:13.5px;
  background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.4);color:var(--ok);
}
.form-tip.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:20px;
  background:linear-gradient(180deg,rgba(6,19,31,.6),#050F18);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(31,224,181,.6),transparent) 1;
  padding:56px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--text);}
.footer-body p{font-size:13.8px;color:var(--muted);line-height:1.8;}
.footer-note{font-size:12.8px;color:var(--dim);margin-top:10px;}
.footer-links li{margin-bottom:9px;}
.footer-links a{font-size:13.8px;color:var(--muted);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--dim);}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary);}

.to-top{
  position:fixed;right:22px;bottom:26px;z-index:800;
  width:44px;height:44px;border-radius:13px;
  display:none;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);
  background:rgba(13,32,48,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  color:var(--primary);font-size:16px;
  box-shadow:var(--shadow-soft);
}
.to-top.show{display:inline-flex;}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-glow);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1.2fr .9fr;gap:32px;}
  .guide-layout{grid-template-columns:250px 1fr;gap:28px;}
}
@media (max-width:991px){
  .page-hero{padding:48px 0 44px;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-visual img{aspect-ratio:16/9;}
  .guide-layout{grid-template-columns:1fr;gap:30px;}
  .side-toc{position:static;}
  .toc-list{display:flex;flex-wrap:wrap;gap:8px;}
  .toc-list li{margin-bottom:0;}
  .toc-list a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:13.5px;}
  .toc-list a.is-current{border-color:var(--line-strong);}
  .toc-list a i{display:none;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .nav-toggle{display:inline-flex;}
  .search-box{display:none;}
  .search-icon-btn{display:inline-flex !important;}
  .channelbar-inner{flex-direction:column;align-items:stretch;gap:12px;padding-top:12px;padding-bottom:14px;}
  .channel-list,.trend-chips{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px;}
  .channelbar{max-height:0;overflow:hidden;transition:max-height .32s ease;border-top-color:transparent;}
  .channelbar.open{max-height:260px;border-top-color:var(--line-soft);}
  .group-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .group-head p{text-align:left;max-width:100%;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-panel{padding:36px 24px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:0;}
  .footer-col{border-bottom:1px solid var(--line-soft);padding:14px 0;}
  .footer-col h4{display:flex;align-items:center;justify-content:space-between;margin-bottom:0;cursor:pointer;}
  .footer-col h4::after{content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--primary);transition:transform .26s ease;}
  .footer-col.is-open h4::after{transform:rotate(45deg);}
  .footer-col .footer-body{max-height:0;overflow:hidden;transition:max-height .32s ease;}
  .footer-col.is-open .footer-body{max-height:460px;}
  .footer-col .footer-body > *:first-child{margin-top:12px;}
  .form-grid-2{grid-template-columns:1fr;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal-box{
    max-width:100%;border-radius:20px 20px 0 0;
    max-height:92vh;
    animation:sheetUp .32s ease;
  }
  @keyframes sheetUp{from{transform:translateY(100%);}to{transform:translateY(0);}}
  .to-top{right:14px;bottom:16px;}
}
@media (max-width:519px){
  .page-hero{padding:36px 0 34px;}
  .brand-text{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:18px;}
  .hero-stat b{font-size:21px;}
  .toc-card{padding:18px 16px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#06131F;
  --bg-1:#0A1B2A;
  --surface:#0D2233;
  --glass:rgba(13,32,48,.58);
  --line:rgba(143,246,225,.14);
  --line-strong:rgba(143,246,225,.32);
  --text:#EAF7FF;
  --text-2:#9DB2C4;
  --text-3:#6F8699;
  --primary:#1FE0B5;
  --primary-deep:#14B895;
  --accent:#FFB45C;
  --ok:#35D07F;
  --warn:#FF6B6B;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --shadow-soft:0 10px 28px rgba(0,0,0,.24);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 10% -10%, rgba(31,224,181,.13), transparent 62%),
    radial-gradient(760px 460px at 94% 4%, rgba(255,180,92,.09), transparent 64%),
    linear-gradient(180deg,#06131F 0%,#0A1B2A 52%,#06131F 100%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:750;letter-spacing:.2px}
h1{font-size:clamp(28px,5vw,52px);font-weight:800}
h2{font-size:clamp(23px,3vw,34px);font-weight:750}
h3{font-size:clamp(18px,2vw,22px)}
h4{font-size:16px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,224,181,.32);color:#fff}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.section{padding:76px 0}
.section-tight{padding:52px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--primary);
  text-transform:uppercase;margin-bottom:12px;font-weight:600;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),transparent);
}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:15.5px;max-width:680px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,19,31,.88);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.is-stuck{
  box-shadow:0 12px 34px rgba(0,0,0,.42);
  background:rgba(6,19,31,.96);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 0;transition:padding .28s ease;
}
.site-header.is-stuck .topbar-inner{padding:9px 0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#1FE0B5,#0F9D7D);
  color:#04231B;font-weight:800;font-size:18px;
  box-shadow:0 0 0 1px rgba(31,224,181,.4),0 8px 22px rgba(31,224,181,.3);
  transition:width .26s ease,height .26s ease;
}
.site-header.is-stuck .brand-mark{width:32px;height:32px;font-size:16px}
.brand-text{
  font-size:17px;font-weight:750;color:var(--text);
  letter-spacing:.4px;white-space:nowrap;
}
.site-header.is-stuck .brand-text{font-size:16px}
.topbar-tools{display:flex;align-items:center;gap:10px}
.search-box{
  display:flex;align-items:center;gap:9px;
  padding:8px 15px;border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.search-box input{
  width:200px;border:0;outline:0;background:transparent;
  color:var(--text);font-size:14px;
}
.search-box input::placeholder{color:var(--text-3)}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,224,181,.16);
}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:transform .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.icon-btn:hover{
  color:var(--primary);border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(31,224,181,.16);
}
.icon-btn:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;
}
.nav-toggle{display:none}
.channelbar{
  border-top:1px solid rgba(143,246,225,.08);
  transition:max-height .3s ease;
}
.channelbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:9px 0 11px;
}
.channel-list{display:flex;align-items:center;gap:6px}
.channel-list a{
  display:inline-block;padding:7px 15px;border-radius:999px;
  color:var(--text-2);font-size:14.5px;font-weight:500;
  white-space:nowrap;transition:color .2s ease,background .2s ease;
}
.channel-list a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.channel-list a.active{
  color:#04231B;font-weight:700;
  background:linear-gradient(135deg,#1FE0B5,#14B895);
  box-shadow:0 6px 18px rgba(31,224,181,.32);
}
.trend-chips{display:flex;align-items:center;gap:8px;font-size:12.5px}
.chips-label{color:var(--text-3);letter-spacing:1.5px;white-space:nowrap}
.chip{
  padding:5px 12px;border-radius:999px;white-space:nowrap;
  border:1px dashed rgba(143,246,225,.26);
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{
  color:var(--primary);border-style:solid;border-color:var(--primary);
  background:rgba(31,224,181,.08);
}

/* ============ 面包屑 ============ */
.crumb-bar{
  padding:20px 0 0;
  font-size:13.5px;
  color:var(--text-3);
}
.crumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb-bar li{display:flex;align-items:center;gap:8px}
.crumb-bar li+li::before{content:"/";color:rgba(111,134,153,.6)}
.crumb-bar a{color:var(--text-2);transition:color .2s ease}
.crumb-bar a:hover{color:var(--primary)}
.crumb-bar .current{color:var(--primary)}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  margin-top:18px;
  padding:60px 0 54px;
  border-radius:26px;
  overflow:hidden;
  background-image:
    linear-gradient(115deg,rgba(6,19,31,.94) 0%,rgba(6,19,31,.78) 48%,rgba(10,27,42,.66) 100%),
    url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center right;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(143,246,225,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(143,246,225,.05) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(560px 340px at 78% 30%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(560px 340px at 78% 30%,#000 0%,transparent 76%);
}
.page-hero .container{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:rgba(31,224,181,.1);
  border:1px solid rgba(31,224,181,.3);
  margin-bottom:18px;
}
.hero-tag i{font-size:11px}
.page-hero h1{max-width:840px;margin-bottom:16px}
.page-hero h1 em{
  font-style:normal;
  color:var(--primary);
  text-shadow:0 0 26px rgba(31,224,181,.36);
}
.hero-lead{
  max-width:660px;color:var(--text-2);font-size:16.5px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:12px;
  font-size:15px;font-weight:650;cursor:pointer;
  border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#1FE0B5,#12A98A);
  color:#04231B;
  box-shadow:0 0 0 1px rgba(31,224,181,.4),0 12px 30px rgba(31,224,181,.3);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background:linear-gradient(135deg,#37EDC4,#15BE9B);
  box-shadow:0 0 0 1px rgba(31,224,181,.55),0 18px 40px rgba(31,224,181,.42);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(31,224,181,.28)}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:var(--primary);
  color:var(--primary);
  background:rgba(31,224,181,.08);
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:12px;
}
.hero-facts span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);
  background:rgba(13,32,48,.6);
  border:1px solid var(--line);
}
.hero-facts i{color:var(--primary);font-size:12px}

/* ============ 筛选 chips ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:14px 18px;
  margin-top:-26px;
  position:relative;z-index:3;
  border-radius:18px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(15px);
  backdrop-filter:blur(15px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.filter-bar .filter-label{
  font-size:13px;color:var(--text-3);letter-spacing:1px;margin-right:4px;
}
.filter-chip{
  padding:8px 17px;border-radius:999px;
  font-size:14px;color:var(--text-2);cursor:pointer;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.filter-chip:hover{color:var(--text);transform:translateY(-1px);border-color:var(--line-strong)}
.filter-chip.is-active{
  color:#04231B;font-weight:700;
  background:linear-gradient(135deg,#1FE0B5,#14B895);
  border-color:transparent;
  box-shadow:0 8px 20px rgba(31,224,181,.3);
}
.filter-chip:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ============ 精选大卡 ============ */
.feature-card{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:0;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 26px 60px rgba(0,0,0,.44),0 0 0 1px rgba(31,224,181,.18);
}
.feature-media{position:relative;min-height:320px;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,19,31,.55),rgba(6,19,31,0) 62%);
}
.feature-body{
  padding:42px 40px;display:flex;flex-direction:column;justify-content:center;gap:16px;
}
.feature-body h3{font-size:clamp(20px,2.3vw,26px);line-height:1.45}
.feature-body p{color:var(--text-2);font-size:15.5px}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  color:var(--primary);
  background:rgba(31,224,181,.11);
  border:1px solid rgba(31,224,181,.28);
  white-space:nowrap;
}
.badge-warm{color:var(--accent);background:rgba(255,180,92,.12);border-color:rgba(255,180,92,.3)}
.badge-cool{color:#8FD8FF;background:rgba(143,216,255,.1);border-color:rgba(143,216,255,.26)}
.meta-time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-size:14.5px;font-weight:600;
  text-underline-offset:5px;
  transition:gap .22s ease,color .22s ease;
}
.text-link:hover{gap:13px;color:var(--accent)}
.text-link:hover span{text-decoration:underline}

/* ============ 双列列表 ============ */
.news-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--gap);
}
.news-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:rgba(13,32,48,.52);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 24px 54px rgba(0,0,0,.42);
}
.news-media{
  position:relative;
  height:200px;
  overflow:hidden;
  background:linear-gradient(135deg,#0F2A3E,#0A1B2A);
}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-media img{transform:scale(1.045)}
.news-body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:19px;line-height:1.5}
.news-body p{color:var(--text-2);font-size:14.5px;line-height:1.8}
.news-foot{
  margin-top:auto;padding-top:14px;
  border-top:1px solid rgba(143,246,225,.1);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-foot .date{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.news-foot a{font-size:13.5px;color:var(--text-2);transition:color .2s ease}
.news-foot a:hover{color:var(--primary)}
.is-hidden{display:none!important}
.empty-tip{
  display:none;
  padding:40px 24px;text-align:center;
  border-radius:var(--radius-lg);
  border:1px dashed var(--line-strong);
  color:var(--text-2);
  background:rgba(13,32,48,.42);
}
.empty-tip.is-show{display:block}

/* ============ 数据带 ============ */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gap);
}
.stat-card{
  position:relative;
  padding:28px 24px;
  border-radius:var(--radius);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease;
}
.stat-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(31,224,181,0),rgba(31,224,181,.8),rgba(31,224,181,0));
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.stat-num{
  font-family:"DIN Alternate","Bahnschrift",system-ui,sans-serif;
  font-size:clamp(30px,3.4vw,42px);
  font-weight:800;
  color:var(--primary);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  text-shadow:0 0 24px rgba(31,224,181,.4);
}
.stat-card .stat-num small{font-size:16px;margin-left:3px;color:var(--text-2);font-weight:600}
.stat-label{margin-top:10px;font-size:15px;font-weight:650;color:var(--text)}
.stat-desc{margin-top:6px;font-size:13px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(13,32,48,.46);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(31,224,181,.4);background:rgba(13,32,48,.68)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 22px;min-height:58px;
  background:transparent;border:0;cursor:pointer;
  color:var(--text);font-size:16px;font-weight:600;text-align:left;
}
.faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-q .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;
  color:var(--primary);
  border:1px solid rgba(31,224,181,.32);
  transition:transform .28s ease,background .28s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(135deg);background:rgba(31,224,181,.14)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .34s ease,opacity .3s ease;
  opacity:0;
}
.faq-item.is-open .faq-a{max-height:280px;opacity:1}
.faq-a p{
  padding:0 22px 20px;color:var(--text-2);font-size:14.8px;line-height:1.85;
}

/* ============ CTA ============ */
.cta-panel{
  position:relative;
  padding:52px 48px;
  border-radius:26px;
  overflow:hidden;
  background:
    linear-gradient(115deg,rgba(9,32,44,.96),rgba(13,32,48,.78)),
    url(/assets/images/backpic/back-3.png);
  background-size:cover;
  background-position:center;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:26px;
}
.cta-panel::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,181,.28),transparent 68%);
  filter:blur(6px);
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{margin-bottom:12px}
.cta-copy p{color:var(--text-2);font-size:15.5px}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:#04101A;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(31,224,181,0),rgba(31,224,181,.7),rgba(31,224,181,0)) 1;
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:16px;letter-spacing:.4px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:750;color:var(--text);
  margin-bottom:14px;
}
.footer-brand .brand-mark{width:32px;height:32px;font-size:15px;border-radius:10px}
.footer-body p{color:var(--text-2);font-size:14px;line-height:1.85}
.footer-links li{margin-bottom:10px}
.footer-links a{
  color:var(--text-2);font-size:14px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-note{margin-top:12px;color:var(--text-3);font-size:12.8px;line-height:1.8}
.footer-bottom{
  border-top:1px solid rgba(143,246,225,.1);
  padding:20px 0 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{color:var(--text-3);font-size:13px}
.footer-bottom a{color:var(--text-2);transition:color .2s ease}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:linear-gradient(135deg,#1FE0B5,#14B895);
  color:#04231B;border:0;
  box-shadow:0 12px 30px rgba(31,224,181,.36);
  opacity:0;visibility:hidden;
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px)}

/* ============ 弹层表单 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:120;
  display:none;align-items:center;justify-content:center;
  padding:20px;
  background:rgba(3,10,17,.72);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.modal-mask.is-open{display:flex}
.modal-panel{
  position:relative;
  width:100%;max-width:520px;
  max-height:88vh;overflow-y:auto;
  padding:34px 32px 30px;
  border-radius:22px;
  background:rgba(13,32,48,.94);
  border:1px solid var(--line-strong);
  box-shadow:0 30px 70px rgba(0,0,0,.55);
  animation:popIn .28s ease;
}
@keyframes popIn{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.modal-panel h3{margin-bottom:10px}
.modal-panel .modal-desc{color:var(--text-2);font-size:14.5px;margin-bottom:22px}
.modal-close{
  position:absolute;right:16px;top:16px;
  width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color .2s ease,border-color .2s ease;
}
.modal-close:hover{color:var(--primary);border-color:var(--primary)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;
  border-radius:var(--radius-sm);
  background:rgba(6,19,31,.7);
  border:1px solid var(--line);
  color:var(--text);font-size:14.5px;
  outline:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,224,181,.18);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6F8699 50%),linear-gradient(135deg,#6F8699 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check-line{display:flex;align-items:flex-start;gap:9px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-line input{width:16px;height:16px;margin-top:3px;accent-color:#1FE0B5}
.check-line a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.form-tip{font-size:12.5px;color:var(--text-3);margin-top:12px;line-height:1.75}
.form-actions{margin-top:20px}
.form-actions .btn{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:1040px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .section{padding:60px 0}
  .page-hero{padding:46px 0 44px;border-radius:22px}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:230px}
  .feature-body{padding:30px 28px}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-panel{padding:40px 32px}
}
@media (max-width:767px){
  .search-box{display:none!important}
  .search-icon-btn{display:grid!important}
  .nav-toggle{display:grid}
  .channelbar{display:none}
  .channelbar.is-open{display:block}
  .channelbar-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0 14px}
  .channel-list{overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
  .channel-list::-webkit-scrollbar{display:none}
  .trend-chips{overflow-x:auto;padding-bottom:6px}
  .trend-chips::-webkit-scrollbar{display:none}
  .page-hero{margin-top:14px;padding:38px 0 36px}
  .hero-actions .btn{flex:1 1 100%}
  .filter-bar{margin-top:-18px;padding:12px 14px}
  .news-grid{grid-template-columns:1fr;gap:18px}
  .news-media{height:180px}
  .field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:24px}
  .footer-col{border-bottom:1px solid rgba(143,246,225,.1);padding:14px 0}
  .footer-col h4{
    margin-bottom:0;position:relative;padding-right:26px;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;
  }
  .footer-col .footer-brand{margin-bottom:12px}
  .footer-col .footer-body{display:none;margin-top:12px}
  .footer-col.is-open .footer-body{display:block}
  .footer-col h4::after{
    content:"\f067";
    font-family:"Font Awesome 6 Free";
    font-weight:900;font-size:11px;color:var(--primary);
    transition:transform .26s ease;
  }
  .footer-col h4::after{margin-left:auto}
  .footer-col.is-open h4::after{transform:rotate(135deg)}
  .footer-bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .cta-panel{padding:32px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .modal-panel{padding:26px 20px 24px;align-self:flex-end;border-radius:22px 22px 0 0;max-height:92vh}
  .modal-mask{align-items:flex-end;padding:0}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:575px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding:48px 0}
  .stat-band{grid-template-columns:1fr;gap:14px}
  .brand-text{font-size:15.5px}
  .hero-lead{font-size:15px}
  .feature-body{padding:24px 20px}
  .news-body{padding:20px 20px 22px}
}