/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --ink-900:#0B1120;
  --ink-800:#131C33;
  --ink-700:#1B2745;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.20);
  --gold-500:#E9B44C;
  --gold-600:#F5C868;
  --gold-700:#C9963A;
  --teal-500:#2FA79B;
  --teal-600:#26877E;
  --violet-500:#7A6BE8;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --text:#1A1F2E;
  --text-2:#5A6274;
  --divide:#E6E1D6;
  --on-dark:#C9D2E4;
  --on-dark-2:#8E9AB5;
  --ok:#3FA76B;
  --warn:#D97A2B;
  --err:#C9453D;
  --r-card:8px;
  --r-btn:6px;
  --r-input:6px;
  --r-pill:999px;
  --sh-light:0 1px 2px rgba(16,22,40,.06),0 8px 24px rgba(16,22,40,.06);
  --sh-deep:0 12px 32px rgba(0,0,0,.34);
  --tr:200ms ease-out;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}

/* ===================== reset / base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--on-dark);
  background:var(--ink-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--tr)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--teal-500);outline-offset:2px;border-radius:4px}

/* ===================== 容器 / 栅格 ===================== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ===================== 通用排版 ===================== */
.h1{font-family:var(--serif);font-weight:700;font-size:clamp(30px,4.6vw,52px);line-height:1.32;letter-spacing:.01em;color:#fff}
.h2{font-family:var(--serif);font-weight:700;font-size:clamp(24px,3vw,34px);line-height:1.42;letter-spacing:.01em}
.h3{font-family:var(--serif);font-weight:600;font-size:clamp(19px,2vw,22px);line-height:1.55}
.h4{font-family:var(--sans);font-weight:600;font-size:17.5px;line-height:1.62}
.lead{font-size:17px;line-height:1.9;color:var(--on-dark)}
.small{font-size:13.5px;line-height:1.7}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.section{padding:104px 0}
.section--tight{padding:80px 0}
.section--paper{background:var(--paper);color:var(--text)}
.section--paper .h2,.section--paper .h3,.section--paper .h4{color:var(--text)}
.section--paper p{color:var(--text-2)}
.sect-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.sect-head__eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--gold-500);font-weight:600;margin-bottom:14px
}
.sect-head__eyebrow::before{content:"";width:22px;height:1px;background:var(--gold-500);display:block}
.section--paper .sect-head__eyebrow{color:var(--gold-700)}
.section--paper .sect-head__eyebrow::before{background:var(--gold-700)}
.sect-head__desc{max-width:560px;margin-top:12px;font-size:16px;color:var(--on-dark-2)}
.section--paper .sect-head__desc{color:var(--text-2)}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;
  line-height:1;border:1px solid transparent;transition:all var(--tr);white-space:nowrap;
}
.btn--gold{background:var(--gold-500);color:#1A1206;border-color:var(--gold-500)}
.btn--gold:hover{background:var(--gold-600);border-color:var(--gold-600);transform:translateY(-1px)}
.btn--gold:active{background:var(--gold-700);border-color:var(--gold-700);transform:translateY(0)}
.btn--ghost{background:transparent;color:#fff;border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--gold-500);background:rgba(233,180,76,.10);color:var(--gold-600);transform:translateY(-1px)}
.btn--teal{background:transparent;color:var(--teal-500);border-color:rgba(47,167,155,.5)}
.btn--teal:hover{background:rgba(47,167,155,.10);border-color:var(--teal-500)}
.btn--solid-teal{background:var(--teal-500);color:#fff;border-color:var(--teal-500)}
.btn--solid-teal:hover{background:var(--teal-600);border-color:var(--teal-600);transform:translateY(-1px)}
.btn--sm{padding:10px 18px;font-size:14.5px}
.btn--lg{padding:16px 34px;font-size:16.5px}
.btn--block{width:100%}
.btn--disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none!important}
.link-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--teal-500);
  font-size:15px;font-weight:600;border-bottom:1px solid rgba(47,167,155,.4);padding-bottom:2px;
  transition:all var(--tr)
}
.link-more:hover{color:var(--teal-600);border-bottom-color:var(--teal-600);transform:translateX(2px)}
.section--paper .link-more{color:var(--teal-600)}

/* ===================== 标签 / 徽章 ===================== */
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.02em;font-weight:500;line-height:1.6;border:1px solid transparent;
}
.tag--gold{background:rgba(233,180,76,.14);color:var(--gold-600);border-color:rgba(233,180,76,.36)}
.tag--teal{background:rgba(47,167,155,.13);color:#57C6BB;border-color:rgba(47,167,155,.34)}
.tag--violet{background:rgba(122,107,232,.14);color:#A79CF2;border-color:rgba(122,107,232,.36)}
.tag--plain{background:rgba(255,255,255,.06);color:var(--on-dark-2);border-color:var(--line)}
.section--paper .tag--gold{background:#FBF1DC;color:#8A6416;border-color:#EBD8AE}
.section--paper .tag--teal{background:#E4F4F2;color:#1F7A70;border-color:#B7DED9}

/* ===================== 顶部信息条 + 导航 ===================== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120;transition:background var(--tr),box-shadow var(--tr)}
.topbar{border-bottom:1px solid var(--line);background:transparent;transition:all var(--tr)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:40px}
.topbar__note{font-size:13px;color:var(--on-dark-2);letter-spacing:.01em}
.topbar__note b{color:var(--gold-500);font-weight:600}
.topbar__links{display:flex;align-items:center;gap:22px}
.topbar__links a{font-size:13px;color:var(--on-dark-2)}
.topbar__links a:hover{color:var(--gold-600)}

.navbar{transition:all var(--tr)}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:74px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{
  width:30px;height:30px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(233,180,76,.9),rgba(233,180,76,.35));
  color:#16100A;font-size:15px;font-weight:700;line-height:1
}
.logo__text{font-family:var(--serif);font-weight:700;font-size:19px;color:#fff;letter-spacing:.02em;display:flex;align-items:baseline;gap:7px}
.logo__sub{font-family:var(--sans);font-size:11.5px;font-weight:500;color:var(--on-dark-2);letter-spacing:.08em}
.mainnav{display:flex;align-items:center;gap:4px}
.mainnav > a{
  position:relative;padding:9px 14px;font-size:15px;color:var(--on-dark);border-radius:6px;
  transition:color var(--tr),background var(--tr)
}
.mainnav > a:hover{color:#fff;background:rgba(255,255,255,.05)}
.mainnav > a.is-active{color:var(--gold-500)}
.mainnav > a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--gold-500);border-radius:2px
}
.nav-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;width:44px;height:44px;border-radius:8px;place-items:center;border:1px solid var(--line)}
.burger span{display:block;width:18px;height:1.6px;background:#fff;margin:3.6px auto;transition:all var(--tr)}
.mainnav__foot{display:none}

.site-header.is-scrolled{background:var(--ink-900);box-shadow:0 1px 0 rgba(255,255,255,.10)}
.site-header.is-scrolled .topbar{background:rgba(255,255,255,.02)}

@media (max-width:991px){
  .topbar{display:none}
  .navbar__inner{min-height:64px}
  .burger{display:grid}
  .nav-actions .btn{display:none}
  .mainnav{
    position:fixed;top:0;left:0;right:0;bottom:0;background:var(--ink-900);
    flex-direction:column;align-items:stretch;gap:0;padding:88px 24px 32px;
    opacity:0;visibility:hidden;transform:translateY(-10px);transition:all var(--tr);overflow-y:auto
  }
  .mainnav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .mainnav > a{padding:18px 4px;font-size:17px;border-bottom:1px solid var(--line);border-radius:0}
  .mainnav > a:hover{background:transparent}
  .mainnav > a.is-active::after{display:none}
  .mainnav > a.is-active{color:var(--gold-500);box-shadow:inset 3px 0 0 var(--gold-500);padding-left:14px}
  .mainnav__foot{display:flex;flex-direction:column;gap:12px;margin-top:28px}
}

/* ===================== Hero ===================== */
.hero{
  position:relative;padding:170px 0 96px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,17,32,.90) 0%,rgba(11,17,32,.82) 45%,rgba(11,17,32,.96) 100%)
}
.hero::after{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.2px 1.2px at 34% 68%,rgba(233,180,76,.6),transparent 60%),
    radial-gradient(1.6px 1.6px at 58% 16%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.1px 1.1px at 76% 54%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.5px 1.5px at 88% 30%,rgba(233,180,76,.5),transparent 60%),
    radial-gradient(1px 1px at 22% 82%,rgba(255,255,255,.45),transparent 60%);
}
.hero .container{position:relative;z-index:2}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}
.hero__brand{
  display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(233,180,76,.36);background:rgba(233,180,76,.08);
  font-size:13px;color:var(--gold-600);letter-spacing:.06em;margin-bottom:26px
}
.hero__brand i{width:6px;height:6px;border-radius:50%;background:var(--gold-500);display:block}
.hero h1{margin-bottom:24px}
.hero h1 em{font-style:normal;color:var(--gold-500);border-bottom:2px solid rgba(233,180,76,.45);padding-bottom:2px}
.hero__sub{max-width:620px;font-size:17px;line-height:1.9;color:var(--on-dark)}
.hero__points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:34px 0 36px;max-width:640px}
.hero__point{border-left:1px solid var(--line-strong);padding-left:14px}
.hero__point b{display:block;font-size:15px;color:#fff;font-weight:600;margin-bottom:2px}
.hero__point span{font-size:13px;color:var(--on-dark-2);line-height:1.7}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* 凭证卡 */
.pass{
  border:1px solid var(--line-strong);border-radius:var(--r-card);
  background:linear-gradient(165deg,rgba(27,39,69,.94),rgba(13,20,38,.96));
  padding:26px;box-shadow:var(--sh-deep);position:relative;overflow:hidden
}
.pass::before{
  content:"";position:absolute;top:-40px;right:-40px;width:150px;height:150px;border-radius:50%;
  background:radial-gradient(circle,rgba(233,180,76,.18),transparent 68%)
}
.pass__top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--line-strong);margin-bottom:20px}
.pass__label{font-family:var(--serif);font-size:16.5px;font-weight:600;color:#fff;letter-spacing:.04em}
.pass__code{font-family:var(--mono);font-size:12px;color:var(--gold-500);letter-spacing:.08em}
.pass__field{margin-bottom:16px}
.pass__field span{display:block;font-size:12.5px;color:var(--on-dark-2);letter-spacing:.06em;margin-bottom:6px}
.pass__field b{
  display:block;font-weight:500;font-size:14.5px;color:#fff;font-family:var(--mono);
  border:1px solid var(--line);border-radius:var(--r-input);padding:11px 14px;
  background:rgba(255,255,255,.03);letter-spacing:.02em
}
.pass__field b.is-dots{letter-spacing:.32em;color:var(--on-dark)}
.pass__foot{display:flex;align-items:center;gap:8px;margin-top:20px;font-size:12.5px;color:var(--on-dark-2)}
.pass__foot i{width:6px;height:6px;border-radius:50%;background:var(--ok);display:block;box-shadow:0 0 0 3px rgba(63,167,107,.18)}

/* ===================== 信任条 ===================== */
.trustbar{
  background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.trustbar__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trustbar__item{padding:30px 26px;border-right:1px solid var(--line)}
.trustbar__item:last-child{border-right:0}
.trustbar__num{font-family:var(--mono);font-size:29px;font-weight:700;color:var(--gold-500);line-height:1.2;letter-spacing:-.02em}
.trustbar__num small{font-size:15px;margin-left:3px;color:var(--gold-600)}
.trustbar__txt{font-size:13.5px;color:var(--on-dark-2);margin-top:6px;line-height:1.7}

/* ===================== 促销延伸段 ===================== */
.promo__grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.promo__visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--divide);box-shadow:var(--sh-light)}
.promo__visual img{width:100%;aspect-ratio:16/9;object-fit:cover}
.promo__badge{
  position:absolute;top:16px;left:16px;background:var(--gold-500);color:#1A1206;
  font-size:12.5px;font-weight:700;padding:5px 13px;border-radius:var(--r-pill);letter-spacing:.04em
}
.promo__list{margin-top:26px;display:grid;gap:12px}
.promo__list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--text-2);line-height:1.8}
.promo__list li svg{flex-shrink:0;margin-top:8px}
.promo__cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}

/* ===================== 优惠阶梯 ===================== */
.tiers{display:grid;gap:0;position:relative}
.tier{display:grid;grid-template-columns:180px 1fr auto;gap:28px;align-items:center;position:relative;padding:30px 0 30px 34px}
.tier::before{
  content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(233,180,76,.15),rgba(233,180,76,.55),rgba(233,180,76,.15))
}
.tier:first-child::before{top:50%}
.tier:last-child::before{bottom:50%}
.tier::after{
  content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:12px;height:12px;border-radius:50%;background:var(--ink-900);
  border:2px solid var(--gold-500)
}
.tier__level{font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;color:var(--gold-500);margin-bottom:6px}
.tier__name{font-family:var(--serif);font-size:21px;font-weight:600;color:#fff;line-height:1.5}
.tier__for{font-size:13.5px;color:var(--on-dark-2);margin-top:4px}
.tier__benefits{display:flex;flex-wrap:wrap;gap:8px}
.tier__benefits span{
  font-size:13.5px;color:var(--on-dark);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 13px;background:rgba(255,255,255,.03)
}
.tier__link{color:var(--gold-500);font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.tier__link:hover{color:var(--gold-600);transform:translateX(2px)}
.tier + .tier{border-top:1px solid var(--line)}

/* ===================== 套餐对比 ===================== */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  background:var(--card);border:1px solid var(--divide);border-radius:var(--r-card);
  padding:30px 26px;position:relative;box-shadow:var(--sh-light);transition:all var(--tr);
  display:flex;flex-direction:column;height:100%
}
.plan:hover{border-color:#D6CDB8;transform:translateY(-2px)}
.plan--rec{border-color:rgba(233,180,76,.75);padding-top:34px}
.plan--rec::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gold-500);border-radius:var(--r-card) var(--r-card) 0 0}
.plan__badge{position:absolute;top:-13px;right:22px;background:var(--gold-500);color:#1A1206;font-size:12.5px;font-weight:700;padding:4px 13px;border-radius:var(--r-pill);letter-spacing:.04em}
.plan__name{font-family:var(--serif);font-size:20px;font-weight:600;color:var(--text)}
.plan__desc{font-size:13.5px;color:var(--text-2);margin-top:6px;min-height:44px}
.plan__price{display:flex;align-items:baseline;gap:6px;margin:20px 0 6px}
.plan__price b{font-family:var(--mono);font-size:38px;font-weight:700;color:var(--text);letter-spacing:-.03em;line-height:1}
.plan__price i{font-style:normal;font-size:14px;color:var(--text-2)}
.plan__cycle{font-size:13px;color:var(--text-2);padding-bottom:20px;border-bottom:1px solid var(--divide)}
.plan__feats{margin:22px 0 26px;display:grid;gap:11px;flex:1}
.plan__feats li{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;color:var(--text-2);line-height:1.75}
.plan__feats li.off{color:#A8AEBC}
.plan__feats li svg{flex-shrink:0;margin-top:7px}

/* ===================== 限时入口 ===================== */
.flash{
  background:linear-gradient(100deg,#241F4E 0%,#312A63 52%,#241F4E 100%);
  border-top:1px solid rgba(122,107,232,.34);border-bottom:1px solid rgba(122,107,232,.34);
}
.flash__inner{display:flex;align-items:center;justify-content:space-between;gap:34px;min-height:150px;padding:26px 0;flex-wrap:wrap}
.flash__left{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.flash__tag{background:rgba(122,107,232,.24);border:1px solid rgba(122,107,232,.55);color:#C4BCFA;font-size:12.5px;padding:5px 13px;border-radius:var(--r-pill);letter-spacing:.06em}
.flash__title{font-family:var(--serif);font-size:clamp(19px,2.2vw,25px);font-weight:600;color:#fff;line-height:1.5}
.flash__sub{font-size:14px;color:#B4BCDA;margin-top:4px}
.flash__clock{display:flex;align-items:center;gap:8px}
.flash__unit{text-align:center;min-width:56px;background:rgba(11,17,32,.55);border:1px solid rgba(122,107,232,.4);border-radius:var(--r-btn);padding:8px 6px}
.flash__unit b{display:block;font-family:var(--mono);font-size:22px;font-weight:700;color:#fff;line-height:1.2}
.flash__unit span{font-size:11px;color:#A79CF2;letter-spacing:.08em}
.flash__colon{color:#7A6BE8;font-family:var(--mono);font-size:20px}

/* ===================== 咨询表单 ===================== */
.consult__grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:start}
.formcard{background:var(--card);border:1px solid var(--divide);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-light)}
.field{margin-bottom:20px}
.field > label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.6}
.field > label em{font-style:normal;color:var(--err);margin-left:3px}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--divide);border-radius:var(--r-input);
  padding:12px 14px;font-size:15px;color:var(--text);line-height:1.6;transition:all var(--tr)
}
.field textarea{min-height:104px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AA1B0}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal-500);box-shadow:0 0 0 2px rgba(47,167,155,.22)
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--err);box-shadow:0 0 0 2px rgba(201,69,61,.16)}
.field__err{color:var(--err);font-size:13px;margin-top:12px;display:none}
.field.is-error .field__err{display:block}
.field__ok{color:var(--ok);font-size:13px;margin-top:12px;display:none}
.field.is-ok .field__ok{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-2);line-height:1.75}
.check input{width:17px;height:17px;margin-top:4px;accent-color:var(--teal-500);flex-shrink:0}
.consult__aside{display:grid;gap:22px}
.asidecard{border:1px solid var(--divide);border-radius:var(--r-card);padding:24px;background:#fff;box-shadow:var(--sh-light)}
.asidecard h3{font-size:17.5px;margin-bottom:10px}
.asidecard p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.asidecard ul{margin-top:14px;display:grid;gap:10px}
.asidecard ul li{display:flex;gap:9px;font-size:14px;color:var(--text-2);line-height:1.75}
.asidecard ul li svg{flex-shrink:0;margin-top:7px}

/* ===================== 最新信息 ===================== */
.news__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.newscard{
  display:flex;gap:20px;background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;transition:all var(--tr)
}
.newscard:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.newscard__thumb{width:150px;flex-shrink:0;border-radius:6px;overflow:hidden;border:1px solid var(--line)}
.newscard__thumb img{width:100%;aspect-ratio:4/3;object-fit:cover}
.newscard__body{display:flex;flex-direction:column;min-width:0}
.newscard__meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.newscard__meta .m{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--on-dark-2)}
.newscard__title{font-family:var(--serif);font-size:18px;font-weight:600;line-height:1.55;color:#fff;margin-bottom:8px}
.newscard__title a:hover{color:var(--gold-600)}
.newscard__sum{
  font-size:14px;color:var(--on-dark-2);line-height:1.8;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.newscard__foot{margin-top:auto}
.newscard--lead{grid-column:1/-1;gap:28px;padding:26px}
.newscard--lead .newscard__thumb{width:320px}
.newscard--lead .newscard__thumb img{aspect-ratio:16/9}
.newscard--lead .newscard__title{font-size:22px}
.news__empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);padding:46px 24px;text-align:center;
  color:var(--on-dark-2);font-size:15px
}

/* ===================== FAQ ===================== */
.faq__list{border-top:1px solid var(--divide)}
.faq__item{border-bottom:1px solid var(--divide)}
.faq__q{
  width:100%;display:flex;align-items:flex-start;gap:18px;padding:24px 0;text-align:left;
  font-family:var(--serif);font-size:17.5px;font-weight:600;color:var(--text);line-height:1.65;transition:color var(--tr)
}
.faq__q:hover{color:var(--gold-700)}
.faq__num{font-family:var(--mono);font-size:13.5px;color:var(--gold-700);flex-shrink:0;padding-top:5px;letter-spacing:.04em}
.faq__arrow{margin-left:auto;flex-shrink:0;padding-top:4px;transition:transform var(--tr);color:var(--text-2)}
.faq__item.is-open .faq__arrow{transform:rotate(180deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out}
.faq__item.is-open .faq__a{max-height:420px}
.faq__a p{padding:0 0 26px 40px;font-size:15.5px;line-height:1.95;color:var(--text-2)}

/* ===================== CTA 条 ===================== */
.ctastrip{background:var(--ink-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ctastrip__inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:44px 0;flex-wrap:wrap}
.ctastrip h2{font-family:var(--serif);font-size:clamp(20px,2.4vw,27px);font-weight:600;color:#fff;line-height:1.5}
.ctastrip p{font-size:14.5px;color:var(--on-dark-2);margin-top:6px}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);padding-top:72px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}
.footer__brand .logo{margin-bottom:18px}
.footer__brand p{font-size:14px;color:var(--on-dark-2);line-height:1.9;max-width:330px}
.footer__enter{margin-top:22px;display:flex;gap:12px;flex-wrap:wrap}
.footer h4{font-size:14.5px;color:#fff;font-weight:600;letter-spacing:.04em;margin-bottom:18px}
.footer__links{display:grid;gap:11px}
.footer__links a{font-size:14px;color:var(--on-dark-2)}
.footer__links a:hover{color:var(--gold-500)}
.footer__contact{display:grid;gap:12px}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:var(--on-dark-2);line-height:1.75}
.footer__contact svg{flex-shrink:0;margin-top:6px}
.footer__bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap
}
.footer__bottom p{font-size:13px;color:var(--on-dark-2)}
.footer__bottom .mono{color:var(--on-dark-2)}

/* ===================== 响应式 ===================== */
@media (max-width:1199px){
  .section{padding:88px 0}
  .hero__grid{grid-template-columns:1.1fr .9fr;gap:44px}
  .promo__grid{gap:40px}
  .consult__grid{gap:40px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
}
@media (max-width:991px){
  body{font-size:16px}
  .section{padding:64px 0}
  .section--tight{padding:56px 0}
  .hero{padding:130px 0 72px}
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .hero__points{grid-template-columns:repeat(3,1fr)}
  .trustbar__grid{grid-template-columns:repeat(2,1fr)}
  .trustbar__item{border-right:0;border-bottom:1px solid var(--line);padding:24px 20px}
  .trustbar__item:nth-child(odd){border-right:1px solid var(--line)}
  .trustbar__item:nth-last-child(-n+2){border-bottom:0}
  .promo__grid{grid-template-columns:1fr;gap:36px}
  .plans{grid-template-columns:1fr;gap:20px}
  .plan{max-width:560px}
  .consult__grid{grid-template-columns:1fr;gap:32px}
  .tier{grid-template-columns:1fr;gap:14px;padding:26px 0 26px 30px}
  .tier__benefits{margin-top:2px}
  .news__grid{grid-template-columns:1fr}
  .newscard--lead .newscard__thumb{width:220px}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .container{padding:0 16px}
  .hero{padding:112px 0 56px}
  .hero__points{grid-template-columns:1fr;gap:14px;margin:26px 0 30px}
  .hero__cta .btn{flex:1 1 auto}
  .sect-head{margin-bottom:30px}
  .newscard{flex-direction:column;gap:16px;padding:18px}
  .newscard__thumb,.newscard--lead .newscard__thumb{width:100%}
  .newscard__thumb img,.newscard--lead .newscard__thumb img{aspect-ratio:16/9}
  .newscard--lead .newscard__title{font-size:19px}
  .flash__inner{gap:20px;min-height:auto;padding:26px 0}
  .flash__clock{transform:scale(.94);transform-origin:left center}
  .formcard{padding:22px 18px}
  .faq__q{font-size:16px;gap:12px;padding:20px 0}
  .faq__a p{padding-left:32px}
  .ctastrip__inner{padding:34px 0}
  .footer__grid{grid-template-columns:1fr;gap:30px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .h1{font-size:28px}
  .topbar__links a:nth-child(n+3){display:none}
  .trustbar__num{font-size:24px}
  .plan__price b{font-size:32px}
  .flash__unit{min-width:48px}
  .flash__unit b{font-size:18px}
}

/* roulang page: article */
:root{
  --ink-900:#0B1120;
  --ink-800:#131C33;
  --ink-700:#1B2540;
  --gold-500:#E9B44C;
  --gold-400:#F5C868;
  --gold-600:#C9963A;
  --teal-500:#2FA79B;
  --violet-500:#7A6BE8;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --text:#1A1F2E;
  --text-2:#5A6274;
  --line:#E6E1D6;
  --d-text:#C9D2E4;
  --d-text-2:#8E9AB5;
  --d-line:rgba(255,255,255,.10);
  --ok:#3FA76B;
  --warn:#D97A2B;
  --err:#C9453D;
  --r-card:8px;
  --r-btn:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,22,40,.06);
  --sh-2:0 8px 24px rgba(16,22,40,.06);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,Menlo,Consolas,monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out,transform .2s ease-out}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;line-height:1.35;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--teal-500);outline-offset:2px}
body.nav-open{overflow:hidden}

.container{width:min(100% - 48px,var(--container));margin-inline:auto}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:120}
.topbar{background:var(--ink-900);border-bottom:1px solid var(--d-line);font-size:13px;line-height:1.7}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
.topbar__note{color:var(--d-text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar__note b{color:var(--gold-500);font-weight:600}
.topbar__links{display:flex;gap:20px;flex-shrink:0}
.topbar__links a{color:var(--d-text-2);font-size:13px}
.topbar__links a:hover{color:var(--gold-400)}

/* ---------- 主导航 ---------- */
.navbar{background:transparent;border-bottom:1px solid transparent;transition:background-color .22s ease-out,border-color .22s ease-out}
.site-header.is-solid .navbar,
.site-header.is-scrolled .navbar{background:var(--ink-900);border-bottom:1px solid var(--d-line)}
.navbar__inner{display:flex;align-items:center;gap:32px;height:74px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff}
.logo__mark{color:var(--gold-500);font-size:18px;line-height:1}
.logo__text{display:flex;flex-direction:column;font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.02em;line-height:1.2}
.logo__sub{font-family:var(--font-sans);font-size:11px;font-weight:400;letter-spacing:.14em;color:var(--d-text-2);margin-top:2px}
.mainnav{display:flex;align-items:center;gap:28px;margin-left:auto}
.mainnav>a{position:relative;color:var(--d-text);font-size:15px;padding:6px 0;white-space:nowrap}
.mainnav>a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold-500);transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out}
.mainnav>a:hover{color:#fff}
.mainnav>a:hover::after,
.mainnav>a.is-active::after{transform:scaleX(1)}
.mainnav>a.is-active{color:#fff}
.mainnav__foot{display:none}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.burger{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:var(--r-btn)}
.burger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:12px 22px;white-space:nowrap;transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
.btn--gold{background:var(--gold-500);color:#1B1405}
.btn--gold:hover{background:var(--gold-400);transform:translateY(-1px)}
.btn--gold:active{background:var(--gold-600);transform:translateY(0)}
.btn--ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn--ghost:hover{background:rgba(233,180,76,.14);border-color:var(--gold-500)}
.btn--ghost:active{background:rgba(233,180,76,.2)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{display:flex;width:100%}

/* ---------- 标签与徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.02em;font-weight:500}
.badge--gold{background:rgba(233,180,76,.16);color:var(--gold-400);border:1px solid rgba(233,180,76,.35)}
.badge--teal{background:rgba(47,167,155,.14);color:#1F8C81;border:1px solid rgba(47,167,155,.3)}
.badge--light{background:#FBF6EA;color:#A8761F;border:1px solid rgba(233,180,76,.45)}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);font-size:12.5px;letter-spacing:.02em;border:1px solid rgba(47,167,155,.35);color:#25857B;background:rgba(47,167,155,.07)}
.tag--gold{border-color:rgba(233,180,76,.45);color:#A8761F;background:rgba(233,180,76,.12)}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  color:#fff;
  padding:60px 0 56px;
  background-image:linear-gradient(180deg,rgba(11,17,32,.86) 0%,rgba(11,17,32,.95) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.35;
}
.article-hero>.container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--d-text-2);line-height:1.7}
.breadcrumb a{color:var(--d-text-2);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--gold-400);border-bottom-color:rgba(233,180,76,.5)}
.breadcrumb .sep{color:rgba(142,154,181,.55)}
.breadcrumb .current{color:var(--d-text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero__head{margin-top:24px;max-width:860px}
.article-hero h1{font-size:clamp(28px,3.8vw,42px);margin:16px 0 20px;letter-spacing:.01em}
.meta-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:13.5px;color:var(--d-text-2)}
.meta-list li{display:inline-flex;align-items:center;gap:7px}
.meta-list .num{font-family:var(--font-mono);font-size:13px;color:var(--d-text)}

/* ---------- 主体布局 ---------- */
.article-wrap{background:var(--paper);padding:64px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:48px;box-shadow:var(--sh-1)}

.article-body{font-size:17px;line-height:2;color:var(--text);max-width:820px}
.article-body>p{margin-bottom:1.1em}
.article-body h2{font-size:27px;margin:1.8em 0 .6em;padding-left:14px;border-left:3px solid var(--gold-500);line-height:1.4}
.article-body h3{font-size:20px;margin:1.6em 0 .5em;letter-spacing:.01em}
.article-body h4{font-size:17px;margin:1.4em 0 .4em;letter-spacing:.01em}
.article-body strong{font-weight:600;color:#111726}
.article-body a{color:var(--teal-500);border-bottom:1px solid rgba(47,167,155,.4)}
.article-body a:hover{color:#25857B;border-bottom-color:#25857B}
.article-body ul,.article-body ol{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.88em;width:6px;height:6px;background:var(--gold-500);border-radius:1px;transform:rotate(45deg)}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:.5em;counter-increment:li}
.article-body ol li::before{content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--gold-600)}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--teal-500);background:#F2F7F6;border-radius:0 8px 8px 0;color:#31404A;font-size:16px;line-height:1.9}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top}
.article-body th{background:#FBF9F4;font-weight:600;color:#28303F}
.article-body img{border-radius:8px;margin:1.6em 0}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--text-2);text-align:center;margin-top:8px;line-height:1.7}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{font-family:var(--font-mono);font-size:14px;background:#F2EFE8;padding:2px 6px;border-radius:4px}

/* ---------- 空态 ---------- */
.empty-state{text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:10px;background:#FCFBF8}
.empty-state__mark{font-size:26px;color:var(--gold-500);line-height:1;margin-bottom:16px}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:24px}

/* ---------- 文末组件 ---------- */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:24px;border-top:1px solid var(--line)}
.article-tags__label{font-size:13px;color:var(--text-2);letter-spacing:.06em;margin-right:4px}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.post-nav__item{display:block;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out}
.post-nav__item:hover{border-color:var(--gold-500);transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-nav__label{display:block;font-size:12px;letter-spacing:.1em;color:var(--text-2);margin-bottom:8px}
.post-nav__item strong{display:block;font-family:var(--font-serif);font-size:17px;margin-bottom:6px}
.post-nav__item p{font-size:13.5px;color:var(--text-2);line-height:1.75}
.post-nav__item.is-next{text-align:right}

.related{margin-top:56px;padding-top:32px;border-top:1px solid var(--line)}
.related__head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px}
.related__head h2{font-size:22px}
.related__head a{font-size:14px;color:var(--teal-500);border-bottom:1px solid rgba(47,167,155,.4)}
.related__head a:hover{color:#25857B;border-bottom-color:#25857B}
.related__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rcard{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;overflow:hidden;transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out}
.rcard:hover{border-color:var(--gold-500);transform:translateY(-2px);box-shadow:var(--sh-2)}
.rcard__thumb{position:relative;aspect-ratio:16/9;background:#EDEAE2;overflow:hidden}
.rcard__thumb img{width:100%;height:100%;object-fit:cover}
.rcard__body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard__body h3{font-size:16.5px;line-height:1.5}
.rcard__body p{font-size:13.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-2)}
.rcard__foot .num{font-family:var(--font-mono)}

.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:32px;font-size:14.5px;color:var(--teal-500);border-bottom:1px solid rgba(47,167,155,.4);padding-bottom:2px}
.back-link:hover{color:#25857B;border-bottom-color:#25857B;transform:translateX(2px)}

/* ---------- 侧栏 ---------- */
.article-aside__sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.aside-card h3{font-family:var(--font-sans);font-size:14px;font-weight:700;letter-spacing:.08em;color:#28303F;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-card h3::before{content:"";width:3px;height:14px;background:var(--gold-500);border-radius:2px}
.toc a{display:block;font-size:14px;line-height:1.7;color:var(--text-2);padding:7px 0 7px 12px;border-left:2px solid var(--line);transition:color .2s ease-out,border-color .2s ease-out}
.toc a:hover{color:#A8761F;border-left-color:var(--gold-500)}
.toc__empty{font-size:13.5px;color:var(--text-2);line-height:1.8}
.aside-links{display:flex;flex-direction:column;gap:12px}
.aside-links a{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.aside-links a:hover{color:#A8761F}
.aside-links .dot{flex-shrink:0;width:6px;height:6px;margin-top:9px;background:var(--gold-500);border-radius:1px;transform:rotate(45deg)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--ink-800);color:#fff;border-top:1px solid var(--d-line);border-bottom:1px solid var(--d-line);padding:44px 0}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-band p{font-size:14.5px;color:var(--d-text-2);line-height:1.8}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:var(--d-text);padding:64px 0 0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer__brand p{font-size:14px;line-height:1.9;color:var(--d-text-2);margin:16px 0 20px;max-width:350px}
.footer__enter{display:flex;gap:12px;flex-wrap:wrap}
.footer h4{font-family:var(--font-sans);font-size:14px;font-weight:700;letter-spacing:.08em;color:#fff;margin-bottom:16px}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__links a{font-size:14px;color:var(--d-text-2)}
.footer__links a:hover{color:var(--gold-400);transform:translateX(2px)}
.footer__contact{display:flex;flex-direction:column;gap:12px}
.footer__contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;line-height:1.7;color:var(--d-text-2)}
.footer__contact svg{flex-shrink:0;margin-top:5px}
.footer__bottom{border-top:1px solid var(--d-line);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--d-text-2)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .navbar__inner{gap:16px}
  .mainnav{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:min(88vw,360px);
    background:var(--ink-900);
    flex-direction:column;align-items:stretch;gap:0;
    padding:96px 24px 32px;
    margin-left:0;
    transform:translateX(100%);
    transition:transform .26s ease-out;
    overflow-y:auto;
    box-shadow:-24px 0 48px rgba(0,0,0,.45);
    z-index:130;
  }
  .mainnav.is-open{transform:translateX(0)}
  .mainnav>a{padding:16px 0;font-size:16px;border-bottom:1px solid var(--d-line);color:var(--d-text)}
  .mainnav>a::after{display:none}
  .mainnav>a.is-active{border-left:3px solid var(--gold-500);padding-left:12px;color:#fff}
  .mainnav__foot{display:flex;flex-direction:column;gap:12px;margin-top:28px}
  .burger{display:flex}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside__sticky{position:static}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{width:min(100% - 32px,var(--container))}
  .topbar__links{display:none}
  .topbar__inner{height:36px}
  .navbar__inner{height:64px}
  .article-hero{padding:40px 0 40px}
  .article-hero h1{margin:12px 0 16px}
  .breadcrumb .current{max-width:200px}
  .article-wrap{padding:32px 0 56px}
  .article{padding:24px 18px;border-radius:8px}
  .article-body{font-size:16px;line-height:2}
  .article-body h2{font-size:22px;margin-top:1.6em}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:1fr;gap:12px}
  .post-nav__item.is-next{text-align:left}
  .related__grid{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:32px 0}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .nav-actions .btn--gold{display:none}
  .article-hero h1{font-size:26px}
  .article-body h2{font-size:20px}
  .footer__enter .btn{flex:1}
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root{
  --ink-900:#0B1120;
  --ink-800:#131C33;
  --ink-700:#1B2540;
  --gold-500:#E9B44C;
  --gold-600:#F5C868;
  --gold-700:#C9963A;
  --teal-500:#2FA79B;
  --violet-500:#7A6BE8;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --text:#1A1F2E;
  --text-2:#5A6274;
  --line:#E6E1D6;
  --dark-text:#C9D2E4;
  --dark-text-2:#8E9AB5;
  --ok:#3FA76B;
  --warn:#D97A2B;
  --err:#C9453D;
  --radius-card:8px;
  --radius-btn:6px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,22,40,.06), 0 8px 24px rgba(16,22,40,.06);
  --shadow-lift:0 2px 4px rgba(16,22,40,.06), 0 12px 32px rgba(16,22,40,.10);
  --font-serif:"Noto Serif SC","Songti SC",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",monospace;
  --t:200ms ease-out;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;margin:0;color:var(--text)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
section[id],div[id]{scroll-margin-top:120px}
:focus-visible{outline:2px solid var(--teal-500);outline-offset:2px}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 头部与导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t);
}
.site-header.is-solid{
  background:var(--ink-900);
  border-bottom-color:rgba(255,255,255,.10);
}
.topbar{
  background:rgba(11,17,32,.80);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:40px;
}
.topbar__note{
  margin:0;font-size:13px;line-height:1.6;color:var(--dark-text-2);
}
.topbar__note b{color:var(--gold-500);font-weight:500}
.topbar__links{display:flex;align-items:center;gap:22px}
.topbar__links a{font-size:13px;color:var(--dark-text-2)}
.topbar__links a:hover{color:var(--gold-500)}

.navbar{background:transparent;transition:background var(--t)}
.site-header.is-solid .navbar{background:var(--ink-900)}
.navbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:68px;
}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff}
.logo__mark{color:var(--gold-500);font-size:18px;line-height:1}
.logo__text{
  display:inline-flex;flex-direction:column;line-height:1.15;
  font-family:var(--font-serif);font-weight:700;font-size:18px;letter-spacing:.02em;
}
.logo__sub{
  font-family:var(--font-sans);font-size:11px;font-weight:400;
  letter-spacing:.14em;color:var(--dark-text-2);
}

.mainnav{display:flex;align-items:center;gap:26px}
.mainnav > a{
  position:relative;font-size:15px;color:var(--dark-text);
  padding:6px 0;transition:color var(--t);
}
.mainnav > a:hover{color:#fff}
.mainnav > a.is-active{color:#fff}
.mainnav > a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--gold-500);border-radius:2px;
}
.mainnav > a.is-active::before{display:none}
.mainnav__foot{display:none}

.nav-actions{display:flex;align-items:center;gap:14px}

.burger{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid rgba(255,255,255,.22);border-radius:var(--radius-btn);
  transition:border-color var(--t),background var(--t);
}
.burger:hover{border-color:var(--gold-500);background:rgba(233,180,76,.08)}
.burger span{display:block;width:18px;height:1.5px;background:#fff;border-radius:2px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:500;line-height:1.4;
  text-align:center;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn--gold{background:var(--gold-500);border-color:var(--gold-500);color:#1B1305}
.btn--gold:hover{background:var(--gold-600);border-color:var(--gold-600);transform:translateY(-1px)}
.btn--gold:active{background:var(--gold-700);border-color:var(--gold-700);transform:none}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.30);color:#fff}
.btn--ghost:hover{background:rgba(233,180,76,.08);border-color:var(--gold-500);color:var(--gold-500)}
.btn--outline{background:transparent;border-color:var(--line);color:var(--text)}
.btn--outline:hover{border-color:var(--gold-500);color:var(--gold-700);background:rgba(233,180,76,.08)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-900) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:172px 0 74px;
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,17,32,.86) 0%,rgba(11,17,32,.93) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 14% 28%,rgba(233,180,76,.55) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 68% 18%,rgba(255,255,255,.42) 50%,transparent 51%),
    radial-gradient(1.6px 1.6px at 86% 62%,rgba(233,180,76,.40) 50%,transparent 51%),
    radial-gradient(1.2px 1.2px at 34% 76%,rgba(255,255,255,.30) 50%,transparent 51%);
  opacity:.9;
}
.page-hero > .container{position:relative;z-index:2}

.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--dark-text-2);
}
.crumbs a:hover{color:var(--gold-500)}
.crumbs .sep{color:rgba(255,255,255,.28)}

.page-hero h1{
  margin:18px 0 16px;
  font-size:clamp(30px,4.6vw,50px);
  line-height:1.28;
  color:#fff;
  letter-spacing:.01em;
}
.page-hero .lead{
  max-width:760px;
  font-size:17px;line-height:1.95;
  color:var(--dark-text);
}
.hl{color:var(--gold-500)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--radius-pill);
  padding:4px 13px;
  font-size:12.5px;font-weight:500;line-height:1.7;letter-spacing:.02em;
  border:1px solid transparent;
}
.badge--gold{background:rgba(233,180,76,.14);border-color:rgba(233,180,76,.42);color:#8A6218}
.badge--teal{background:rgba(47,167,155,.12);border-color:rgba(47,167,155,.36);color:#1F7269}
.badge--dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.20);color:var(--dark-text)}
.badge--golddark{background:rgba(233,180,76,.14);border-color:rgba(233,180,76,.42);color:var(--gold-500)}

/* ============ 快速锚点条 ============ */
.quicknav{
  background:var(--ink-800);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.quicknav__inner{
  display:flex;align-items:center;gap:12px;
  padding-top:14px;padding-bottom:14px;
  overflow-x:auto;scrollbar-width:none;
}
.quicknav__inner::-webkit-scrollbar{display:none}
.quicknav a{
  flex:0 0 auto;
  border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-pill);
  padding:7px 16px;font-size:14px;color:var(--dark-text);
  transition:var(--t);
}
.quicknav a:hover{border-color:var(--gold-500);color:var(--gold-500);background:rgba(233,180,76,.08)}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section--paper{background:var(--paper)}
.section--white{background:#fff}
.section--dark{background:var(--ink-900);color:var(--dark-text)}
.section--dark h2,.section--dark h3{color:#fff}

.section-head{max-width:780px;margin-bottom:52px}
.section-head h2{
  font-size:clamp(24px,3vw,34px);line-height:1.4;
  margin:14px 0 14px;
}
.section-head p{color:var(--text-2);font-size:16.5px}
.section--dark .section-head p{color:var(--dark-text-2)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.16em;color:var(--gold-700);
  font-family:var(--font-sans);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--gold-500);display:block}
.section--dark .eyebrow{color:var(--gold-500)}

/* ============ 交错图文清单 ============ */
.zigzag{display:flex;flex-direction:column;gap:28px}
.zigzag__item{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;
  box-shadow:var(--shadow-card);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.zigzag__item:hover{border-color:rgba(233,180,76,.55);transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.zigzag__item:nth-child(even) .zigzag__media{order:2}
.zigzag__item:nth-child(even) .zigzag__body{order:1}
.zigzag__media{
  margin:0;border-radius:6px;overflow:hidden;
  border:1px solid var(--line);background:var(--ink-800);
}
.zigzag__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 260ms ease-out}
.zigzag__item:hover .zigzag__media img{transform:scale(1.02)}
.zigzag__body h3{font-size:22px;line-height:1.5;margin:14px 0 14px}
.ticks{list-style:none;display:grid;gap:11px;margin:0 0 20px}
.ticks li{
  position:relative;padding-left:24px;
  font-size:15.5px;line-height:1.85;color:var(--text-2);
}
.ticks li::before{
  content:"";position:absolute;left:4px;top:12px;
  width:7px;height:7px;border-radius:1px;
  background:var(--gold-500);transform:rotate(45deg);
}
.link-more{
  display:inline-block;
  color:var(--teal-500);font-size:15px;font-weight:500;
  border-bottom:1px solid rgba(47,167,155,.40);
  padding-bottom:2px;
  transition:var(--t);
}
.link-more:hover{border-color:var(--teal-500);transform:translateX(2px)}

/* ============ FAQ ============ */
.faq{max-width:940px;border-top:1px solid var(--line)}
details.faq__item{border-bottom:1px solid var(--line)}
details.faq__item summary{
  list-style:none;display:flex;align-items:flex-start;gap:16px;
  padding:24px 0;cursor:pointer;
  transition:color var(--t);
}
details.faq__item summary::-webkit-details-marker{display:none}
details.faq__item summary:hover .faq__q{color:var(--gold-700)}
.faq__num{
  font-family:var(--font-mono);font-size:13.5px;color:var(--gold-700);
  padding-top:5px;flex:0 0 auto;
}
.faq__q{
  font-family:var(--font-serif);font-weight:600;font-size:17.5px;
  line-height:1.7;color:var(--text);transition:color var(--t);
}
.faq__arrow{
  margin-left:auto;flex:0 0 auto;padding-top:6px;
  color:var(--text-2);transition:transform var(--t);
}
details[open] .faq__arrow{transform:rotate(180deg)}
.faq__a{
  padding:0 0 24px 38px;
  color:var(--text-2);font-size:15.5px;line-height:1.95;
}

/* ============ CTA 分隔带 ============ */
.cta-band{
  margin-top:56px;
  background:var(--ink-800);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-card);
  padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px solid rgba(233,180,76,.20);border-radius:50%;
  pointer-events:none;
}
.cta-band h3{font-size:22px;margin-bottom:8px;color:#fff}
.cta-band p{color:var(--dark-text-2);font-size:15px;margin:0}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:2}

/* ============ 交叉链接 ============ */
.crossgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.crosscard{
  display:flex;gap:20px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.crosscard:hover{border-color:rgba(233,180,76,.6);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.crosscard img{
  flex:0 0 auto;width:134px;aspect-ratio:4/3;object-fit:cover;
  border-radius:6px;border:1px solid var(--line);
}
.crosscard h3{font-size:18px;line-height:1.5;margin-bottom:8px}
.crosscard p{color:var(--text-2);font-size:14.5px;line-height:1.8;margin:0 0 10px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--dark-text);padding:76px 0 0}
.footer__grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:40px;padding-bottom:54px;
}
.site-footer .logo{color:#fff;margin-bottom:4px}
.site-footer .logo__text{font-size:17px}
.footer__brand p{
  color:var(--dark-text-2);font-size:14.5px;line-height:1.9;
  margin:18px 0 22px;max-width:360px;
}
.footer__enter{display:flex;gap:12px;flex-wrap:wrap}
.footer h4{
  color:#fff;font-size:15px;letter-spacing:.04em;
  margin:0 0 18px;font-family:var(--font-serif);
}
.footer__links{display:flex;flex-direction:column;gap:12px}
.footer__links a{color:var(--dark-text-2);font-size:14.5px}
.footer__links a:hover{color:var(--gold-500)}
.footer__contact{list-style:none;display:flex;flex-direction:column;gap:14px}
.footer__contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;line-height:1.8;color:var(--dark-text-2);
}
.footer__contact svg{flex:0 0 auto;margin-top:5px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dark-text-2);
}
.footer__bottom p{margin:0}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .mainnav{gap:20px}
  .mainnav > a{font-size:14.5px}
}
@media (max-width:1080px){
  .burger{display:flex}
  .nav-actions .btn--gold{display:none}
  .mainnav{
    position:fixed;top:0;left:0;right:0;bottom:0;
    background:var(--ink-900);
    flex-direction:column;align-items:stretch;gap:0;
    padding:112px 24px 32px;
    transform:translateX(100%);
    transition:transform 240ms ease-out;
    overflow-y:auto;z-index:85;
  }
  .mainnav.is-open{transform:translateX(0)}
  .mainnav > a{
    width:100%;padding:18px 0 18px 16px;font-size:17px;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mainnav > a.is-active::after{display:none}
  .mainnav > a.is-active::before{
    display:block;content:"";position:absolute;left:0;top:20px;bottom:20px;
    width:3px;border-radius:2px;background:var(--gold-500);
  }
  .mainnav__foot{
    display:flex;flex-direction:column;gap:12px;
    margin-top:30px;
  }
}
@media (max-width:992px){
  .section{padding:64px 0}
  .zigzag__item{grid-template-columns:1fr;gap:24px;padding:22px}
  .zigzag__item:nth-child(even) .zigzag__media{order:0}
  .zigzag__item:nth-child(even) .zigzag__body{order:0}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .container{padding:0 18px}
  .topbar__note{display:none}
  .topbar__inner{justify-content:center}
  .topbar__links{gap:18px}
  .page-hero{padding:140px 0 54px}
  .page-hero .lead{font-size:16px}
  .section-head{margin-bottom:36px}
  .crossgrid{grid-template-columns:1fr}
  .crosscard{flex-direction:row}
  .crosscard img{width:110px}
  .faq__a{padding-left:0}
  .footer__grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .site-footer{padding-top:56px}
  .zigzag__item:hover{transform:none}
}
@media (max-width:520px){
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .crosscard{flex-direction:column;align-items:flex-start}
  .crosscard img{width:100%;aspect-ratio:16/9}
  .quicknav a{font-size:13px;padding:6px 13px}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B1120;
  --ink-800:#131C33;
  --ink-700:#1C2743;
  --gold-500:#E9B44C;
  --gold-hover:#F5C868;
  --gold-active:#C9963A;
  --teal-500:#2FA79B;
  --violet-500:#7A6BE8;
  --paper:#F7F5F0;
  --card:#FFFFFF;
  --text:#1A1F2E;
  --text-2:#5A6274;
  --line:#E6E1D6;
  --dk-text:#C9D2E4;
  --dk-text-2:#8E9AB5;
  --ok:#3FA76B;
  --warn:#D97A2B;
  --err:#C9453D;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"JetBrains Mono","Roboto Mono","SFMono-Regular",Consolas,monospace;
  --r-card:8px;
  --r-btn:6px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,22,40,.06),0 8px 24px rgba(16,22,40,.06);
  --shadow-2:0 12px 30px rgba(4,8,20,.45);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;line-height:1.35;color:#131C33;letter-spacing:.01em}
h1{font-size:clamp(30px,4.6vw,52px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:21px}
h4{font-size:17.5px}
p{margin:0}
a{color:var(--teal-500);text-decoration:none;transition:color var(--ease)}
a:hover{color:#238D83}
img{display:block;max-width:100%;height:auto}
button{font:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--teal-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#080D1A;border-bottom:1px solid rgba(255,255,255,.08);color:var(--dk-text-2);font-size:13.5px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;min-height:42px}
.topbar__note{margin:0;font-size:13.5px;color:var(--dk-text-2)}
.topbar__note b{color:var(--gold-500);font-weight:600}
.topbar__links{display:flex;gap:20px}
.topbar__links a{color:var(--dk-text-2);font-size:13.5px}
.topbar__links a:hover{color:var(--gold-500)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--ink-900);border-bottom:1px solid transparent;transition:border-color var(--ease),box-shadow var(--ease)}
.site-header.is-scrolled{border-bottom-color:rgba(255,255,255,.12);box-shadow:var(--shadow-2)}
.navbar__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.logo:hover{color:#fff}
.logo__mark{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1px solid rgba(233,180,76,.55);background:radial-gradient(circle at 32% 28%,rgba(233,180,76,.32),rgba(11,17,32,.1) 70%);color:var(--gold-500);font-size:13px;line-height:1}
.logo__text{display:flex;flex-direction:column;font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.02em;line-height:1.15;color:#fff}
.logo__sub{font-family:var(--sans);font-size:11px;font-weight:400;letter-spacing:.16em;color:var(--dk-text-2)}
.mainnav{display:flex;align-items:center;gap:26px}
.mainnav a{position:relative;padding:6px 0;font-size:15px;color:var(--dk-text);text-decoration:none}
.mainnav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--gold-500);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.mainnav a:hover{color:#fff}
.mainnav a:hover::after{transform:scaleX(1)}
.mainnav a.is-active{color:var(--gold-500)}
.mainnav a.is-active::after{transform:scaleX(1)}
.mainnav__foot{display:none}
.nav-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;width:44px;height:44px;padding:0;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:transparent;cursor:pointer}
.burger span{display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:#fff}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border:1px solid transparent;border-radius:var(--r-btn);font-family:var(--sans);font-size:15px;font-weight:600;line-height:1.2;text-decoration:none;cursor:pointer;transition:transform var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease)}
.btn--gold{background:var(--gold-500);color:#131C33}
.btn--gold:hover{background:var(--gold-hover);color:#0B1120;transform:translateY(-1px)}
.btn--gold:active{background:var(--gold-active)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn--ghost:hover{background:rgba(233,180,76,.12);border-color:var(--gold-500);color:var(--gold-500);transform:translateY(-1px)}
.btn--outline{background:transparent;border-color:#D8D2C4;color:#1A1F2E}
.btn--outline:hover{border-color:var(--teal-500);color:var(--teal-500);background:rgba(47,167,155,.06);transform:translateY(-1px)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--teal-500);border-bottom:1px solid rgba(47,167,155,.42);padding-bottom:2px}
.link-more:hover{color:#238D83;transform:translateX(2px)}

/* ---------- 分类页头（窄条深底） ---------- */
.page-banner{position:relative;overflow:hidden;background:linear-gradient(180deg,#0B1120,#131C33);color:var(--dk-text);padding:34px 0 38px}
.page-banner::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.3}
.page-banner::after{content:"";position:absolute;inset:0;background:
  radial-gradient(110% 80% at 10% 0%,rgba(122,107,232,.2),transparent 55%),
  radial-gradient(90% 70% at 92% 100%,rgba(47,167,155,.16),transparent 60%),
  linear-gradient(180deg,rgba(11,17,32,.72),rgba(11,17,32,.94))}
.page-banner__inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 232px;gap:36px;align-items:center}
.page-banner h1{margin:10px 0 12px;font-size:clamp(24px,3.1vw,36px);color:#fff;max-width:26ch}
.page-banner p{max-width:60ch;font-size:15.5px;color:var(--dk-text)}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--dk-text-2);flex-wrap:wrap}
.crumb a{color:var(--dk-text-2)}
.crumb a:hover{color:var(--gold-500)}
.crumb .sep{opacity:.55}
.banner-visual{margin:0;border:1px solid rgba(255,255,255,.14);border-radius:8px;overflow:hidden;background:#0E1526}
.banner-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.92}
.banner-visual figcaption{padding:9px 12px;border-top:1px solid rgba(255,255,255,.1);font-size:12.5px;color:var(--dk-text-2);line-height:1.6}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section--white{background:#fff}
.section--paper{background:var(--paper)}
.section--dark{position:relative;background:var(--ink-900);color:var(--dk-text)}
.section--dark::before{content:"";position:absolute;inset:0;background-image:
  radial-gradient(circle at 12% 20%,rgba(233,180,76,.10),transparent 40%),
  radial-gradient(circle at 84% 76%,rgba(122,107,232,.14),transparent 45%);
  pointer-events:none}
.section--dark>*{position:relative;z-index:1}
.section--dark h2,.section--dark h3{color:#fff}
.section__head{max-width:740px;margin-bottom:40px}
.section__head h2{margin:12px 0 12px}
.section__head p{font-size:16px;color:var(--text-2)}
.section--dark .section__head p{color:var(--dk-text-2)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.14em;color:#9A6E12}
.section--dark .eyebrow{color:var(--gold-500)}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor}

/* ---------- 筛选胶囊 ---------- */
.filterbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid var(--line);margin-bottom:40px}
.filterbar__label{font-size:13px;color:var(--text-2);margin-right:4px}
.pill{padding:8px 16px;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;font-size:13px;letter-spacing:.02em;color:var(--text-2);cursor:pointer;transition:border-color var(--ease),color var(--ease),background-color var(--ease)}
.pill:hover{border-color:var(--gold-500);color:#9A6E12}
.pill.is-on{background:var(--ink-900);border-color:var(--ink-900);color:#fff}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.scard{display:flex;flex-direction:column;overflow:hidden;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.scard:hover{transform:translateY(-2px);border-color:rgba(233,180,76,.62);box-shadow:var(--shadow-1)}
.scard__media{position:relative;aspect-ratio:16/9;background:#E9E5DC;overflow:hidden}
.scard__media img{width:100%;height:100%;object-fit:cover}
.scard__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,17,32,0) 45%,rgba(11,17,32,.35));opacity:0;transition:opacity var(--ease)}
.scard:hover .scard__media::after{opacity:1}
.scard__body{display:flex;flex-direction:column;flex:1;gap:12px;padding:24px}
.scard__body h3{font-size:19px}
.scard__body p{font-size:15px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.scard__meta{display:flex;gap:18px;padding-top:2px;font-family:var(--mono);font-size:12.5px;color:var(--text-2);letter-spacing:.02em}
.scard__meta b{color:#9A6E12;font-weight:600}
.scard__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border:1px solid transparent;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.tag--gold{background:rgba(233,180,76,.16);border-color:rgba(233,180,76,.42);color:#8C630F}
.tag--teal{background:rgba(47,167,155,.12);border-color:rgba(47,167,155,.32);color:#1F7C73}
.tag--violet{background:rgba(122,107,232,.12);border-color:rgba(122,107,232,.3);color:#5546C4}

/* ---------- 流程阶梯 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{position:relative;padding-top:22px;border-top:1px solid rgba(255,255,255,.16)}
.step::before{content:"";position:absolute;top:-1px;left:0;width:44px;height:2px;background:var(--gold-500)}
.step__no{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--gold-500)}
.step h3{margin:10px 0 8px;font-size:18px}
.step p{font-size:14.5px;color:var(--dk-text-2)}

/* ---------- 优惠提示条 ---------- */
.promo{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;padding:30px 34px;border:1px solid rgba(233,180,76,.4);border-radius:var(--r-card);background:linear-gradient(90deg,rgba(233,180,76,.16),rgba(233,180,76,.04))}
.promo__text{max-width:64ch}
.promo h3{font-size:20px;margin-bottom:8px}
.promo p{font-size:15px;color:var(--text-2)}
.promo__acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 交叉链接 ---------- */
.cross{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.crosscard{display:flex;flex-direction:column;gap:12px;padding:28px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;color:inherit;text-decoration:none;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.crosscard:hover{transform:translateY(-2px);border-color:rgba(47,167,155,.5);box-shadow:var(--shadow-1);color:inherit}
.crosscard h3{font-size:19px}
.crosscard p{font-size:15px;color:var(--text-2)}
.crosscard .crosscard__top{display:flex;align-items:center;gap:10px}
.starline{width:26px;height:26px;flex:none;color:var(--gold-500)}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;align-items:center;gap:14px;padding:20px 0;cursor:pointer;list-style:none;font-family:var(--serif);font-size:18px;font-weight:700;color:#131C33}
.faq summary::-webkit-details-marker{display:none}
.faq .qno{font-family:var(--mono);font-size:13px;font-weight:400;color:var(--gold-active);min-width:30px}
.faq .arrow{margin-left:auto;flex:none;color:var(--text-2);transition:transform var(--ease)}
.faq details[open] .arrow{transform:rotate(180deg)}
.faq .ans{padding:0 0 22px 44px;font-size:15.5px;line-height:1.9;color:var(--text-2)}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;padding:44px;border:1px solid rgba(255,255,255,.1);border-radius:var(--r-card);background:var(--ink-800)}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 88% 18%,rgba(233,180,76,.16),transparent 42%);pointer-events:none}
.cta-band__text{position:relative;z-index:1;max-width:60ch}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:var(--dk-text-2);font-size:15.5px}
.cta-band__acts{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid rgba(255,255,255,.1);padding:64px 0 0;color:var(--dk-text-2)}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__brand .logo{margin-bottom:16px}
.footer__brand p{font-size:14.5px;line-height:1.85;color:var(--dk-text-2)}
.footer__enter{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.footer h4{margin-bottom:16px;font-family:var(--sans);font-size:16px;font-weight:600;letter-spacing:.02em;color:#fff}
.footer__links{display:grid;gap:12px}
.footer__links a{font-size:14.5px;color:var(--dk-text-2)}
.footer__links a:hover{color:var(--gold-500)}
.footer__contact{display:grid;gap:14px;font-size:14.5px}
.footer__contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer__contact svg{flex:none;margin-top:4px}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:var(--dk-text-2)}
.footer__bottom a{font-size:13px;color:var(--dk-text-2)}
.footer__bottom a:hover{color:var(--gold-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .section{padding:80px 0}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:992px){
  .mainnav{position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);padding:92px 22px 32px;background:var(--ink-900);border-left:1px solid rgba(255,255,255,.1);flex-direction:column;align-items:stretch;gap:0;overflow-y:auto;transform:translateX(101%);transition:transform 220ms ease-out;z-index:90}
  .mainnav.is-open{transform:none}
  .mainnav a{padding:16px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .mainnav a::after{display:none}
  .mainnav a.is-active{color:var(--gold-500);box-shadow:inset 3px 0 0 var(--gold-500);padding-left:14px}
  .mainnav__foot{display:grid;gap:12px;margin-top:26px}
  .burger{display:block}
  .nav-actions .btn--gold{display:none}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .page-banner__inner{grid-template-columns:minmax(0,1fr)}
  .banner-visual{display:none}
  .section{padding:64px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .topbar__inner{padding:6px 0}
  .topbar__note{display:none}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .scard__body{padding:16px}
  .cross{grid-template-columns:1fr}
  .promo{padding:22px}
  .cta-band{padding:28px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:36px}
  .footer__brand{grid-column:1 / -1}
  .faq summary{font-size:16.5px;gap:10px}
  .faq .ans{padding-left:0}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .steps{grid-template-columns:1fr}
  .filterbar{gap:8px}
  .pill{padding:7px 13px;font-size:12.5px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}