/* ============================================================
   鼎上娱乐平台 · 官网样式表（Nocturne Gold / 暗夜鎏金）
   设计体系：暖黑夜景 + 鎏金主线 + 金线框卡片 + 庄重对称
   域名：https://www.dingssyl.com/
   ============================================================ */

/* ---------- 基础与变量 ---------- */
:root {
  --night: #0c0a07;            /* 主背景：暖夜黑 */
  --night-2: #131009;          /* 次级背景 */
  --night-3: #1b150c;          /* 卡片底 */
  --panel: rgba(27, 21, 12, .72);
  --panel-soft: rgba(38, 30, 16, .5);

  --gold: #d9b45c;             /* 主金 */
  --gold-2: #f0d488;           /* 亮金 */
  --gold-3: #a8832f;           /* 深金 */
  --gold-deep: #6e5520;        /* 暗金 */
  --ember: #c9763b;            /* 琥珀点缀 */

  --ink: #f6efdc;              /* 暖白正文 */
  --ink-2: #beb193;            /* 次级文字 */
  --ink-3: #857a60;            /* 弱化文字 */

  --line: rgba(217, 180, 92, .18);
  --line-2: rgba(217, 180, 92, .42);

  --grad-gold: linear-gradient(120deg, #f0d488 0%, #d9b45c 48%, #a8832f 100%);
  --grad-line: linear-gradient(90deg, transparent, rgba(217, 180, 92, .55), transparent);
  --shadow: 0 24px 60px rgba(0, 0, 0, .55);
  --shadow-gold: 0 14px 44px rgba(217, 180, 92, .16);

  --face: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --shell: 1200px;
  --radius: 18px;
  --radius-sm: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--face);
  background: var(--night);
  color: var(--ink);
  font-size: 15.5px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 顶部鎏金细线 */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-gold);
  z-index: 120;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

::selection { background: rgba(217, 180, 92, .35); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--night-2); }
::-webkit-scrollbar-thumb { background: #3a2f18; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-deep); }

.ds-shell { width: min(var(--shell), calc(100% - 48px)); margin: 0 auto; }

/* ---------- 通用文字体系 ---------- */
.ds-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  letter-spacing: .34em;
  color: var(--gold);
  text-transform: uppercase;
}
.ds-eyebrow::before,
.ds-eyebrow::after { content: "◆"; font-size: 8px; color: var(--gold-3); }

.ds-h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.35;
  margin: 14px 0 12px;
}
.ds-h2 em { font-style: normal; color: var(--gold-2); }
.ds-sub { color: var(--ink-2); max-width: 720px; }

.ds-sec-head { margin-bottom: 46px; }
.ds-sec-head--center { text-align: center; }
.ds-sec-head--center .ds-sub { margin: 0 auto; }
.ds-sec-head--center .ds-eyebrow::before { content: "◆"; }

.ds-gold-text {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .06em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space: nowrap;
}
.ds-btn--gold {
  background: var(--grad-gold);
  color: #221703;
  box-shadow: 0 10px 30px rgba(217, 180, 92, .28);
}
.ds-btn--gold:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(217, 180, 92, .4); }
.ds-btn--ghost {
  border-color: var(--line-2);
  color: var(--gold-2);
  background: rgba(217, 180, 92, .05);
}
.ds-btn--ghost:hover { background: rgba(217, 180, 92, .14); transform: translateY(-2px); }
.ds-btn--dark {
  background: #201808;
  color: var(--gold-2);
  border-color: var(--line-2);
}
.ds-btn--dark:hover { background: #2a2010; transform: translateY(-2px); }
.ds-btn--lg { padding: 16px 40px; font-size: 16px; }

/* ---------- 顶部通告条 ---------- */
.ds-notice {
  background: linear-gradient(90deg, #16110a, #221a0e, #16110a);
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-2);
}
.ds-notice .ds-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 9px 0;
}
.ds-notice b { color: var(--gold-2); font-weight: 600; }
.ds-notice a { color: var(--ink-3); white-space: nowrap; }
.ds-notice a:hover { color: var(--gold-2); }

/* ---------- 页头 ---------- */
.ds-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12, 10, 7, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease;
}
.ds-head.is-stuck { box-shadow: 0 12px 34px rgba(0, 0, 0, .5); }
.ds-head .ds-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}
.ds-brand { display: flex; align-items: center; flex: 0 0 auto; }
.ds-brand img { height: 44px; width: auto; }

.ds-nav { display: flex; align-items: center; gap: 4px; }
.ds-nav > li > a {
  display: block;
  padding: 10px 15px;
  font-size: 15px;
  color: var(--ink-2);
  border-radius: 10px;
  position: relative;
  transition: color .22s ease, background .22s ease;
}
.ds-nav > li > a:hover { color: var(--gold-2); background: rgba(217, 180, 92, .07); }
.ds-nav > li > a.is-on { color: var(--gold-2); font-weight: 600; }
.ds-nav > li > a.is-on::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 4px;
  height: 2px;
  background: var(--grad-gold);
  border-radius: 2px;
}

.ds-head-side { display: flex; align-items: center; gap: 14px; }
.ds-head-side .ds-btn { padding: 10px 24px; font-size: 14px; }

/* 汉堡按钮 */
.ds-burger {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: rgba(217, 180, 92, .06);
  cursor: pointer;
  position: relative;
}
.ds-burger span,
.ds-burger span::before,
.ds-burger span::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 20px; height: 2px;
  background: var(--gold-2);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform .3s ease, opacity .3s ease;
}
.ds-burger span::before { transform: translate(-50%, -7px); }
.ds-burger span::after { transform: translate(-50%, 7px); }
.ds-burger.is-open span { background: transparent; }
.ds-burger.is-open span::before { transform: translate(-50%, 0) rotate(45deg); }
.ds-burger.is-open span::after { transform: translate(-50%, 0) rotate(-45deg); }

/* 移动抽屉 */
.ds-drawer {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(9, 7, 4, .97);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s ease, visibility .35s ease;
}
.ds-drawer.is-open { opacity: 1; visibility: visible; }
.ds-drawer a {
  font-size: 21px;
  color: var(--ink-2);
  padding: 11px 30px;
  letter-spacing: .2em;
  transition: color .25s ease;
}
.ds-drawer a:hover, .ds-drawer a.is-on { color: var(--gold-2); }
.ds-drawer .ds-drawer-cta { margin-top: 22px; }
.ds-drawer-note { margin-top: 30px; font-size: 12px; letter-spacing: .3em; color: var(--ink-3); }

/* ---------- Hero（首页） ---------- */
.ds-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 90px 0 140px;
}
.ds-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .58;
}
.ds-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 48% at 50% 32%, rgba(217, 180, 92, .17), transparent 70%),
    linear-gradient(180deg, rgba(12, 10, 7, .68) 0%, rgba(12, 10, 7, .42) 42%, var(--night) 96%);
  z-index: 1;
}
.ds-hero-inner { position: relative; z-index: 2; width: min(880px, calc(100% - 48px)); margin: 0 auto; }

.ds-hero-emblem {
  width: 78px; height: 78px;
  margin: 0 auto 26px;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 42%, rgba(217, 180, 92, .18), rgba(12, 10, 7, .4));
  box-shadow: 0 0 0 8px rgba(217, 180, 92, .05), 0 0 44px rgba(217, 180, 92, .2);
}
.ds-hero-emblem svg { width: 42px; height: 42px; }

.ds-hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.22;
  margin: 18px 0 8px;
}
.ds-hero h1 .ds-gold-text { padding: 0 6px; }

.ds-hero-slogan {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: clamp(15px, 1.8vw, 19px);
  color: var(--ink-2);
  letter-spacing: .3em;
  margin: 12px 0 18px;
}
.ds-hero-slogan::before,
.ds-hero-slogan::after { content: "◆"; font-size: 9px; color: var(--gold-3); letter-spacing: 0; }

.ds-hero-copy { color: var(--ink-2); max-width: 640px; margin: 0 auto 34px; }

.ds-hero-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.ds-hero-stats {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 2;
  width: min(var(--shell), calc(100% - 48px));
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(19, 16, 9, .82);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-bottom: none;
  border-radius: 18px 18px 0 0;
}
.ds-hero-stats > div {
  padding: 20px 12px;
  text-align: center;
  border-right: 1px solid var(--line);
}
.ds-hero-stats > div:last-child { border-right: none; }
.ds-hero-stats b {
  display: block;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 800;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: .02em;
}
.ds-hero-stats span { font-size: 12.5px; color: var(--ink-3); letter-spacing: .18em; }

/* ---------- 通用章节 ---------- */
.ds-sec { padding: 92px 0; position: relative; }
.ds-sec--alt { background: var(--night-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.ds-sec--tight { padding: 64px 0; }

/* 分隔金光 */
.ds-glowline { height: 1px; background: var(--grad-line); border: none; }

/* ---------- 特色卡 ---------- */
.ds-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ds-feature {
  position: relative;
  background: linear-gradient(165deg, rgba(217, 180, 92, .07), rgba(27, 21, 12, .5) 42%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 28px 30px;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.ds-feature:hover { transform: translateY(-6px); border-color: var(--line-2); box-shadow: var(--shadow-gold); }
.ds-feature-num {
  font-size: 13px;
  letter-spacing: .3em;
  color: var(--gold-3);
  margin-bottom: 18px;
}
.ds-feature-ico {
  width: 52px; height: 52px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-2);
  background: rgba(217, 180, 92, .07);
  margin-bottom: 20px;
}
.ds-feature-ico svg { width: 26px; height: 26px; }
.ds-feature h3 { font-size: 18.5px; font-weight: 700; letter-spacing: .05em; margin-bottom: 10px; }
.ds-feature p { font-size: 14px; color: var(--ink-2); }

/* ---------- 游戏卡（竖版海报） ---------- */
.ds-games-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ds-games-grid--four { grid-template-columns: repeat(4, 1fr); }
.ds-gcard {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--night-3);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.ds-gcard:hover { transform: translateY(-8px); border-color: var(--line-2); box-shadow: var(--shadow), var(--shadow-gold); }
.ds-gcard-media { position: relative; aspect-ratio: 3 / 4; overflow: hidden; }
.ds-gcard-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.ds-gcard:hover .ds-gcard-media img { transform: scale(1.06); }
.ds-gcard-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 46%, rgba(9, 7, 4, .92) 96%);
}
.ds-gcard-tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  font-size: 11.5px;
  letter-spacing: .18em;
  color: #2a1c05;
  background: var(--grad-gold);
  border-radius: 999px;
  padding: 5px 13px;
  font-weight: 700;
}
.ds-gcard-body { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 20px 20px 18px; }
.ds-gcard-body h3 { font-size: 19px; font-weight: 700; letter-spacing: .06em; margin-bottom: 6px; }
.ds-gcard-body p { font-size: 13px; color: var(--ink-2); line-height: 1.7; }
.ds-gcard-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(217, 180, 92, .22);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .1em;
}
.ds-gcard-meta i { font-style: normal; color: var(--gold-2); }

/* ---------- 数据横幅 ---------- */
.ds-band {
  background:
    radial-gradient(60% 120% at 50% 0%, rgba(217, 180, 92, .12), transparent 68%),
    var(--night-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 58px 0;
}
.ds-band-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.ds-band-item b {
  display: block;
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.ds-band-item span { font-size: 13px; color: var(--ink-3); letter-spacing: .22em; }

/* ---------- 步骤流程 ---------- */
.ds-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: dsstep; }
.ds-step {
  position: relative;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 24px 26px;
  transition: transform .3s ease, border-color .3s ease;
}
.ds-step:hover { transform: translateY(-5px); border-color: var(--line-2); }
.ds-step::before {
  counter-increment: dsstep;
  content: "0" counter(dsstep);
  display: block;
  font-size: 30px;
  font-weight: 800;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 14px;
  letter-spacing: .04em;
}
.ds-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: .05em; }
.ds-step p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- FAQ 手风琴 ---------- */
.ds-faq { display: grid; gap: 12px; max-width: 900px; margin: 0 auto; }
.ds-faq details {
  background: var(--panel-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color .3s ease;
}
.ds-faq details[open] { border-color: var(--line-2); }
.ds-faq summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 50px 18px 22px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .03em;
  position: relative;
  transition: color .25s ease;
}
.ds-faq summary::-webkit-details-marker { display: none; }
.ds-faq summary:hover { color: var(--gold-2); }
.ds-faq summary::after {
  content: "+";
  position: absolute;
  right: 20px; top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--gold);
  transition: transform .3s ease;
}
.ds-faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.ds-faq .ds-faq-body { padding: 2px 22px 20px; color: var(--ink-2); font-size: 14px; border-top: 1px dashed var(--line); margin-top: 2px; padding-top: 14px; }

/* ---------- 新闻 ---------- */
.ds-news-lead {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-soft);
  transition: border-color .3s ease, box-shadow .3s ease;
  margin-bottom: 26px;
}
.ds-news-lead:hover { border-color: var(--line-2); box-shadow: var(--shadow-gold); }
.ds-news-lead-media { position: relative; min-height: 320px; overflow: hidden; }
.ds-news-lead-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.ds-news-lead:hover .ds-news-lead-media img { transform: scale(1.05); }
.ds-news-lead-body { padding: 40px 38px; display: flex; flex-direction: column; justify-content: center; }
.ds-news-lead-body h3 { font-size: clamp(20px, 2.4vw, 26px); font-weight: 700; line-height: 1.5; margin: 12px 0 12px; letter-spacing: .03em; }
.ds-news-lead-body:hover h3 { color: var(--gold-2); }
.ds-news-lead-body p { color: var(--ink-2); font-size: 14px; margin-bottom: 20px; }

.ds-date { font-size: 12.5px; letter-spacing: .22em; color: var(--gold-3); }

.ds-nlist { display: grid; gap: 0; border-top: 1px solid var(--line); }
.ds-nitem {
  display: grid;
  grid-template-columns: 150px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 22px 6px;
  border-bottom: 1px solid var(--line);
  transition: background .25s ease;
}
.ds-nitem:hover { background: rgba(217, 180, 92, .05); }
.ds-nitem h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 6px; letter-spacing: .02em; }
.ds-nitem:hover h3 { color: var(--gold-2); }
.ds-nitem p { font-size: 13.5px; color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ds-nitem .ds-nitem-go { color: var(--gold); font-size: 20px; transition: transform .3s ease; }
.ds-nitem:hover .ds-nitem-go { transform: translateX(6px); }

/* ---------- CTA 横幅 ---------- */
.ds-cta { position: relative; padding: 96px 0; overflow: hidden; }
.ds-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(52% 68% at 50% 50%, rgba(217, 180, 92, .14), transparent 72%);
}
.ds-cta-card {
  position: relative;
  border: 1px solid var(--line-2);
  border-radius: 22px;
  padding: 62px 40px;
  text-align: center;
  background: linear-gradient(180deg, rgba(27, 21, 12, .88), rgba(19, 16, 9, .92));
  overflow: hidden;
}
.ds-cta-card::before,
.ds-cta-card::after {
  content: "";
  position: absolute;
  width: 74px; height: 74px;
  border: 2px solid rgba(217, 180, 92, .5);
}
.ds-cta-card::before { top: 10px; left: 10px; border-right: none; border-bottom: none; border-radius: 14px 0 0 0; }
.ds-cta-card::after { bottom: 10px; right: 10px; border-left: none; border-top: none; border-radius: 0 0 14px 0; }
.ds-cta-card h2 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; letter-spacing: .05em; margin: 14px 0 12px; }
.ds-cta-card p { color: var(--ink-2); max-width: 620px; margin: 0 auto 30px; }
.ds-cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.ds-foot {
  background: #0a0805;
  border-top: 1px solid var(--line);
  padding: 72px 0 0;
}
.ds-foot-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.15fr;
  gap: 44px;
  padding-bottom: 54px;
}
.ds-foot-brand img { height: 46px; margin-bottom: 20px; }
.ds-foot-brand p { font-size: 13.5px; color: var(--ink-3); max-width: 300px; margin-bottom: 18px; }
.ds-foot-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--gold-3);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  letter-spacing: .12em;
}
.ds-foot h4 { font-size: 15px; font-weight: 700; letter-spacing: .14em; color: var(--gold); margin-bottom: 20px; }
.ds-foot h4::before { content: "◆ "; font-size: 8px; vertical-align: 2px; color: var(--gold-3); }
.ds-foot-links { display: grid; gap: 11px; }
.ds-foot-links a { font-size: 13.5px; color: var(--ink-3); transition: color .25s ease, padding-left .25s ease; }
.ds-foot-links a:hover { color: var(--gold-2); padding-left: 5px; }
.ds-foot-contact { display: grid; gap: 13px; font-size: 13.5px; color: var(--ink-3); }
.ds-foot-contact b { color: var(--ink-2); font-weight: 600; }
.ds-foot-contact a { color: var(--gold-2); }
.ds-foot-keywords { padding: 0 0 30px; border-bottom: 1px solid var(--line); font-size: 12.5px; color: var(--ink-3); line-height: 2.1; }
.ds-foot-keywords b { color: var(--gold-3); font-weight: 600; }
.ds-foot-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding: 24px 0 30px;
  font-size: 12.5px;
  color: var(--ink-3);
}
.ds-foot-bottom a { color: var(--ink-3); }
.ds-foot-bottom a:hover { color: var(--gold-2); }

/* ---------- 内页页头 ---------- */
.ds-pagehead {
  position: relative;
  padding: 84px 0 66px;
  text-align: center;
  background:
    radial-gradient(56% 90% at 50% 0%, rgba(217, 180, 92, .13), transparent 70%),
    var(--night-2);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.ds-pagehead::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -1px;
  transform: translateX(-50%);
  width: min(560px, 80%);
  height: 1px;
  background: var(--grad-line);
}
.ds-pagehead h1 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: .07em; margin: 16px 0 12px; }
.ds-pagehead p { color: var(--ink-2); max-width: 680px; margin: 0 auto; }

/* 面包屑 */
.ds-crumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.ds-crumb a:hover { color: var(--gold-2); }
.ds-crumb i { font-style: normal; color: var(--gold-3); font-size: 10px; }

/* ---------- 回顶按钮 ---------- */
.ds-top {
  position: fixed;
  right: 26px; bottom: 30px;
  width: 48px; height: 48px;
  border-radius: 14px;
  border: 1px solid var(--line-2);
  background: rgba(27, 21, 12, .9);
  color: var(--gold-2);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease, background .3s ease;
  z-index: 90;
}
.ds-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.ds-top:hover { background: rgba(217, 180, 92, .18); }

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .75s cubic-bezier(.22, .65, .3, 1), transform .75s cubic-bezier(.22, .65, .3, 1);
  transition-delay: var(--rv-delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   页面专属组件
   ============================================================ */

/* ---------- 开户指南（register 页） ---------- */
.ds-guide { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.ds-guide + .ds-guide { margin-top: 76px; }
.ds-guide--flip > .ds-guide-media { order: 2; }
.ds-guide-num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  letter-spacing: .28em;
  color: var(--gold-3);
  margin-bottom: 14px;
}
.ds-guide-num b {
  font-size: 34px;
  font-weight: 800;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0;
}
.ds-guide-body h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 700; letter-spacing: .04em; margin-bottom: 14px; }
.ds-guide-body > p { color: var(--ink-2); margin-bottom: 18px; }
.ds-check { display: grid; gap: 12px; margin-bottom: 24px; }
.ds-check li {
  position: relative;
  padding-left: 30px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.ds-check li::before {
  content: "◆";
  position: absolute;
  left: 4px; top: 1px;
  font-size: 9px;
  color: var(--gold);
}
.ds-check li b { color: var(--ink); font-weight: 600; }

/* 模拟面板（注册演示示意，非真实表单） */
.ds-mock {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(217, 180, 92, .08), rgba(19, 16, 9, .72) 46%);
  padding: 30px 28px;
  box-shadow: var(--shadow);
}
.ds-mock::before {
  content: "注册界面示意";
  position: absolute;
  top: -13px; left: 22px;
  font-size: 11px;
  letter-spacing: .22em;
  color: #2a1c05;
  background: var(--grad-gold);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 700;
}
.ds-mock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 4px;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.ds-mock-row:last-of-type { border-bottom: none; }
.ds-mock-row span { color: var(--ink-3); letter-spacing: .1em; }
.ds-mock-row b { font-weight: 600; color: var(--ink); }
.ds-mock-row b i { font-style: normal; color: var(--gold-2); }
.ds-mock-btn {
  margin-top: 18px;
  width: 100%;
  padding: 14px;
  border-radius: 999px;
  background: var(--grad-gold);
  color: #221703;
  font-weight: 700;
  text-align: center;
  letter-spacing: .3em;
  font-size: 15px;
}
.ds-mock-note { margin-top: 14px; font-size: 12.5px; color: var(--ink-3); text-align: center; letter-spacing: .06em; }

/* 提示框 */
.ds-note {
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  background: rgba(217, 180, 92, .06);
  padding: 18px 22px;
  font-size: 14px;
  color: var(--ink-2);
}
.ds-note b { color: var(--gold-2); }

/* ---------- 游戏筛选（games 页） ---------- */
.ds-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 44px;
}
.ds-filter button {
  font-family: var(--face);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--ink-2);
  background: rgba(217, 180, 92, .05);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 24px;
  cursor: pointer;
  transition: all .25s ease;
}
.ds-filter button:hover { color: var(--gold-2); border-color: var(--line-2); }
.ds-filter button.is-on {
  background: var(--grad-gold);
  color: #221703;
  border-color: transparent;
  font-weight: 700;
}
.ds-gcard.is-hide { display: none; }

/* ---------- 文章页（news-detail） ---------- */
.ds-article { max-width: 860px; margin: 0 auto; }
.ds-article-head { text-align: center; margin-bottom: 42px; }
.ds-article-head h1 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 800; line-height: 1.5; letter-spacing: .04em; margin: 14px 0 16px; }
.ds-article-meta { display: flex; justify-content: center; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); letter-spacing: .12em; }
.ds-article-meta b { color: var(--gold-2); font-weight: 600; }
.ds-article-cover { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); margin-bottom: 42px; }
.ds-article-cover img { width: 100%; height: auto; }
.ds-article-body { font-size: 15.5px; color: var(--ink-2); }
.ds-article-body > * + * { margin-top: 22px; }
.ds-article-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .04em;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
  margin-top: 46px;
}
.ds-article-body h3 { font-size: 17.5px; font-weight: 700; color: var(--ink); margin-top: 32px; }
.ds-article-body strong { color: var(--ink); }
.ds-article-body a { color: var(--gold-2); border-bottom: 1px dashed var(--line-2); }
.ds-article-body a:hover { color: var(--gold); }
.ds-article-body ul { display: grid; gap: 10px; padding-left: 6px; }
.ds-article-body ul li { position: relative; padding-left: 26px; }
.ds-article-body ul li::before { content: "◆"; position: absolute; left: 4px; top: 2px; font-size: 8px; color: var(--gold); }
.ds-article-body blockquote {
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 12px;
  background: rgba(217, 180, 92, .06);
  padding: 20px 26px;
  color: var(--ink);
  font-size: 15px;
}
.ds-article-body figure { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.ds-article-body figure img { width: 100%; height: auto; }
.ds-article-body figcaption { padding: 12px 18px; font-size: 13px; color: var(--ink-3); border-top: 1px dashed var(--line); }

.ds-adj { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 860px; margin: 54px auto 0; }
.ds-adj a {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  font-size: 14px;
  color: var(--ink-2);
  transition: all .25s ease;
}
.ds-adj a:hover { border-color: var(--line-2); color: var(--gold-2); background: rgba(217, 180, 92, .05); }
.ds-adj a i { font-style: normal; display: block; font-size: 12px; letter-spacing: .2em; color: var(--gold-3); margin-bottom: 6px; }
.ds-adj a.ds-adj-next { text-align: right; }

/* ---------- 关于页（about） ---------- */
.ds-timeline { position: relative; max-width: 780px; margin: 0 auto; padding-left: 34px; }
.ds-timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-2) 12%, var(--line-2) 88%, transparent);
}
.ds-tl-item { position: relative; padding: 0 0 40px 24px; }
.ds-tl-item:last-child { padding-bottom: 0; }
.ds-tl-item::before {
  content: "";
  position: absolute;
  left: -31px; top: 7px;
  width: 11px; height: 11px;
  transform: rotate(45deg);
  background: var(--grad-gold);
  box-shadow: 0 0 0 4px rgba(217, 180, 92, .14);
}
.ds-tl-item b { display: block; font-size: 15px; color: var(--gold-2); letter-spacing: .22em; margin-bottom: 8px; }
.ds-tl-item h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 8px; letter-spacing: .03em; }
.ds-tl-item p { font-size: 14px; color: var(--ink-2); }

.ds-split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 54px; align-items: center; }
.ds-split + .ds-split { margin-top: 76px; }
.ds-split--flip > .ds-split-media { order: 2; }
.ds-split-media { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.ds-split-media img { width: 100%; height: 100%; object-fit: cover; }
.ds-split-body h2 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 700; letter-spacing: .04em; margin-bottom: 16px; }
.ds-split-body p { color: var(--ink-2); margin-bottom: 14px; }

/* ---------- 联系页（contact） ---------- */
.ds-contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ds-contact-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-soft);
  padding: 32px 28px;
  text-align: center;
  transition: transform .3s ease, border-color .3s ease;
}
.ds-contact-card:hover { transform: translateY(-6px); border-color: var(--line-2); }
.ds-contact-card .ds-feature-ico { margin: 0 auto 18px; }
.ds-contact-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; letter-spacing: .06em; }
.ds-contact-card p { font-size: 13.5px; color: var(--ink-2); margin-bottom: 16px; }
.ds-contact-card b { display: block; color: var(--gold-2); font-weight: 600; font-size: 15px; letter-spacing: .04em; }

.ds-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.ds-table th, .ds-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.ds-table th { color: var(--gold); font-weight: 600; letter-spacing: .1em; background: rgba(217, 180, 92, .06); }
.ds-table td { color: var(--ink-2); }
.ds-table tr:hover td { background: rgba(217, 180, 92, .04); }
.ds-table-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }

/* ---------- 404 ---------- */
.ds-err { text-align: center; padding: 110px 0 120px; }
.ds-err-code {
  font-size: clamp(90px, 16vw, 170px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: .06em;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: .9;
}
.ds-err h1 { font-size: clamp(22px, 3vw, 32px); font-weight: 700; margin: 18px 0 12px; letter-spacing: .06em; }
.ds-err p { color: var(--ink-2); max-width: 560px; margin: 0 auto 32px; }
.ds-err-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- 关键词内链横条 ---------- */
.ds-keybar {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(217, 180, 92, .04);
  padding: 22px 0;
}
.ds-keybar .ds-shell { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px 26px; font-size: 13.5px; }
.ds-keybar span { color: var(--ink-3); letter-spacing: .14em; }
.ds-keybar a { color: var(--gold-2); border-bottom: 1px dashed var(--line-2); padding-bottom: 1px; }
.ds-keybar a:hover { color: var(--gold); border-bottom-style: solid; }

/* ============================================================
   响应式适配
   ============================================================ */
@media (max-width: 1120px) {
  .ds-nav > li > a { padding: 10px 11px; font-size: 14.5px; }
  .ds-head-side .ds-btn { padding: 9px 18px; }
  .ds-games-grid--four { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .ds-sec { padding: 76px 0; }
  .ds-features { grid-template-columns: repeat(2, 1fr); }
  .ds-games-grid { grid-template-columns: repeat(2, 1fr); }
  .ds-steps { grid-template-columns: repeat(2, 1fr); }
  .ds-foot-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .ds-contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 920px) {
  .ds-nav, .ds-head-side .ds-btn { display: none; }
  .ds-burger { display: block; }
  .ds-guide { grid-template-columns: 1fr; gap: 34px; }
  .ds-guide--flip > .ds-guide-media { order: 0; }
  .ds-guide + .ds-guide { margin-top: 58px; }
  .ds-split { grid-template-columns: 1fr; gap: 32px; }
  .ds-split--flip > .ds-split-media { order: 0; }
  .ds-split + .ds-split { margin-top: 58px; }
  .ds-news-lead { grid-template-columns: 1fr; }
  .ds-news-lead-media { min-height: 240px; }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .ds-hero { min-height: 100vh; padding: 72px 0 190px; }
  .ds-hero-stats { grid-template-columns: repeat(2, 1fr); border-radius: 16px 16px 0 0; }
  .ds-hero-stats > div { border-bottom: 1px solid var(--line); }
  .ds-hero-stats > div:nth-child(2) { border-right: none; }
  .ds-hero-stats > div:nth-child(3), .ds-hero-stats > div:nth-child(4) { border-bottom: none; }
  .ds-band-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 18px; }
  .ds-nitem { grid-template-columns: 1fr; gap: 6px; padding: 20px 4px; }
  .ds-nitem .ds-nitem-go { display: none; }
  .ds-adj { grid-template-columns: 1fr; }
  .ds-adj a.ds-adj-next { text-align: left; }
  .ds-cta-card { padding: 48px 22px; }
}

@media (max-width: 560px) {
  .ds-shell { width: calc(100% - 36px); }
  .ds-sec { padding: 58px 0; }
  .ds-notice .ds-shell { justify-content: center; text-align: center; }
  .ds-notice a { display: none; }
  .ds-features, .ds-games-grid, .ds-games-grid--four, .ds-steps, .ds-contact-grid { grid-template-columns: 1fr; }
  .ds-foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .ds-hero-cta .ds-btn, .ds-cta-actions .ds-btn, .ds-err-actions .ds-btn { width: 100%; }
  .ds-news-lead-body { padding: 26px 22px; }
  .ds-top { right: 16px; bottom: 20px; }
}