/* ==========================================================================
   盛煌娱乐 · HEXTECH ARENA 设计系统（arena.css）
   --------------------------------------------------------------------------
   海克斯竞技大厅视觉：深海克斯蓝底 + 黄铜符文金 + 水晶青 + 六边形斜切面板。
   与站群其他模板的区分点：六边形裁剪 / 斜切角面板 / 顶栏记分线 / 无左侧导航轨。
   令牌与组件集中在本文件，页面区块样式见 pages.css，类名统一 sh- 前缀。
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 底色：暖调深海克斯蓝（非纯黑） */
  --sh-void: #08111b;
  --sh-bg: #0a131f;
  --sh-bg-2: #0f1d2b;
  --sh-panel: #12233430;
  --sh-panel-solid: #122334;

  /* 符文金（主品牌色） */
  --sh-brass: #c99a45;
  --sh-brass-hi: #e9d59a;
  --sh-brass-dim: #8a6a30;

  /* 水晶青 + 奥术紫（强调） */
  --sh-cyan: #37d2d9;
  --sh-cyan-dim: #1c7f86;
  --sh-violet: #7b5cff;

  /* 纸张 / 文字 */
  --sh-paper: #f4ece0;
  --sh-ink: #e8eef5;
  --sh-ink-2: #9db0c2;
  --sh-ink-3: #647889;

  /* 线条 */
  --sh-line: rgba(233, 213, 154, .16);
  --sh-line-2: rgba(233, 213, 154, .32);
  --sh-line-cyan: rgba(55, 210, 217, .28);

  /* 尺寸 */
  --sh-wrap: 1240px;
  --sh-gutter: 26px;
  --sh-radius: 4px;

  /* 字体 */
  --sh-sans: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --sh-mono: ui-monospace, "Cascadia Mono", "Consolas", "SFMono-Regular", monospace;
  --sh-display: "Segoe UI", "Arial Black", "PingFang SC", "Microsoft YaHei", sans-serif;

  /* 形状：六边形 / 斜切角 */
  --sh-hex: polygon(25% 4%, 75% 4%, 100% 50%, 75% 96%, 25% 96%, 0 50%);
  --sh-bevel: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  --sh-bevel-sm: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));

  /* 阴影 / 光晕 */
  --sh-glow-cyan: 0 0 24px rgba(55, 210, 217, .22);
  --sh-glow-brass: 0 0 28px rgba(201, 154, 69, .18);
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sh-sans);
  color: var(--sh-ink);
  background-color: var(--sh-bg);
  background-image:
    radial-gradient(120% 90% at 85% -10%, rgba(123, 92, 255, .12), transparent 55%),
    radial-gradient(90% 80% at -5% 5%, rgba(55, 210, 217, .10), transparent 50%),
    linear-gradient(180deg, var(--sh-bg) 0%, var(--sh-void) 100%);
  background-attachment: fixed;
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, h5, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--sh-cyan); outline-offset: 3px; }

/* 底纹：六边形点阵 + 细网格 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(var(--sh-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--sh-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(140% 100% at 50% 0, #000 30%, transparent 78%);
          mask-image: radial-gradient(140% 100% at 50% 0, #000 30%, transparent 78%);
}

/* ---------- 布局工具 ---------- */
.sh-wrap { width: 100%; max-width: var(--sh-wrap); margin-inline: auto; padding-inline: var(--sh-gutter); position: relative; z-index: 1; }
.sh-skip { position: absolute; left: -9999px; top: 0; z-index: 100; background: var(--sh-brass); color: #1a1206; padding: 8px 16px; }
.sh-skip:focus { left: 12px; top: 12px; }
.sh-mt { margin-top: 34px; }
.sh-mt-lg { margin-top: 60px; }
main { position: relative; z-index: 1; }

/* ---------- 顶栏 ---------- */
.sh-top {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: linear-gradient(180deg, rgba(8, 17, 27, .94), rgba(8, 17, 27, .78));
  border-bottom: 1px solid var(--sh-line);
}
.sh-top__bar { display: flex; align-items: center; gap: 22px; height: 70px; }
.sh-brand { display: flex; align-items: center; gap: 12px; margin-right: auto; }
.sh-brand__hex {
  width: 40px; height: 40px; display: grid; place-items: center;
  clip-path: var(--sh-hex);
  background: linear-gradient(145deg, var(--sh-brass-hi), var(--sh-brass) 55%, var(--sh-brass-dim));
  color: #1a1206; font-family: var(--sh-display); font-weight: 900; font-size: 15px; letter-spacing: -.5px;
}
.sh-brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.sh-brand__text b { font-family: var(--sh-display); font-weight: 800; font-size: 1.12rem; letter-spacing: .5px; }
.sh-brand__text i { font-family: var(--sh-mono); font-style: normal; font-size: .64rem; letter-spacing: 2px; color: var(--sh-cyan); text-transform: uppercase; }
.sh-nav { display: flex; gap: 4px; }
.sh-nav a { padding: 8px 13px; font-size: .95rem; color: var(--sh-ink-2); border-radius: var(--sh-radius); transition: color .2s, background .2s; position: relative; }
.sh-nav a:hover { color: var(--sh-brass-hi); }
.sh-nav a[aria-current="page"] { color: var(--sh-ink); }
.sh-nav a[aria-current="page"]::after { content: ""; position: absolute; left: 13px; right: 13px; bottom: 2px; height: 2px; background: var(--sh-cyan); box-shadow: var(--sh-glow-cyan); }
.sh-top__act { display: flex; align-items: center; gap: 10px; }
.sh-burger { display: none; width: 42px; height: 40px; border: 1px solid var(--sh-line-2); background: transparent; border-radius: var(--sh-radius); }
.sh-burger span { display: block; width: 18px; height: 2px; background: var(--sh-brass-hi); margin: 3px auto; transition: transform .25s, opacity .25s; }
.sh-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.sh-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.sh-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* 记分线：滚动跑马灯 */
.sh-scoreline { overflow: hidden; border-bottom: 1px solid var(--sh-line); background: rgba(55, 210, 217, .05); }
.sh-scoreline__track { display: flex; gap: 34px; white-space: nowrap; padding: 7px 0; width: max-content; animation: sh-slide 34s linear infinite; font-family: var(--sh-mono); font-size: .74rem; letter-spacing: 1px; color: var(--sh-ink-2); }
.sh-scoreline__track b { color: var(--sh-brass-hi); }
.sh-scoreline__track i { font-style: normal; color: var(--sh-cyan); }
@keyframes sh-slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .sh-scoreline__track { animation: none; } html { scroll-behavior: auto; } }

/* ---------- 按钮 ---------- */
.sh-btn { display: inline-flex; align-items: center; gap: 9px; padding: 12px 22px; font-family: var(--sh-display); font-weight: 700; font-size: .96rem; letter-spacing: .3px; clip-path: var(--sh-bevel-sm); border: 0; transition: transform .18s, filter .18s; }
.sh-btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.sh-btn--brass { background: linear-gradient(140deg, var(--sh-brass-hi), var(--sh-brass) 60%, var(--sh-brass-dim)); color: #1a1206; }
.sh-btn--cyan { background: linear-gradient(140deg, #56e0e6, var(--sh-cyan) 60%, var(--sh-cyan-dim)); color: #04222a; }
.sh-btn--ghost { background: transparent; color: var(--sh-brass-hi); box-shadow: inset 0 0 0 1px var(--sh-line-2); }
.sh-btn--dark { background: rgba(255, 255, 255, .04); color: var(--sh-ink); box-shadow: inset 0 0 0 1px var(--sh-line); }

/* ---------- 区块通用 ---------- */
.sh-band { padding: 92px 0; position: relative; }
.sh-band--panel { background: linear-gradient(180deg, var(--sh-bg-2), transparent); border-block: 1px solid var(--sh-line); }
.sh-band--tight { padding: 60px 0; }

.sh-kicker { font-family: var(--sh-mono); font-size: .74rem; letter-spacing: 3px; text-transform: uppercase; color: var(--sh-cyan); }
.sh-head { max-width: 760px; margin-bottom: 46px; }
.sh-head__no { font-family: var(--sh-mono); font-size: .78rem; letter-spacing: 3px; color: var(--sh-brass); margin-bottom: 12px; display: flex; align-items: center; gap: 12px; }
.sh-head__no::before { content: ""; width: 34px; height: 1px; background: var(--sh-brass); }
.sh-head__title { font-family: var(--sh-display); font-weight: 800; font-size: clamp(1.7rem, 3.6vw, 2.7rem); line-height: 1.16; letter-spacing: -.5px; }
.sh-head__meta { margin-top: 14px; color: var(--sh-ink-2); font-size: 1.02rem; }

.sh-tag { display: inline-flex; align-items: center; gap: 7px; font-family: var(--sh-mono); font-size: .72rem; letter-spacing: 1px; color: var(--sh-cyan); padding: 4px 11px; clip-path: var(--sh-bevel-sm); background: rgba(55, 210, 217, .1); }
.sh-tag--brass { color: #22170a; background: linear-gradient(120deg, var(--sh-brass-hi), var(--sh-brass)); }
.sh-tag--violet { color: #d9ceff; background: rgba(123, 92, 255, .16); }

/* 六边形图标 */
.sh-hex-ico { width: 52px; height: 52px; display: grid; place-items: center; clip-path: var(--sh-hex); background: linear-gradient(150deg, rgba(55, 210, 217, .28), rgba(123, 92, 255, .22)); color: var(--sh-cyan); font-size: 1.3rem; }

/* 揭示动画 */
[data-reveal] { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1), transform .7s cubic-bezier(.2, .7, .2, 1); }
[data-reveal].sh-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; transition: none; } }

/* ---------- 卡片（斜切角面板） ---------- */
.sh-card { position: relative; background: linear-gradient(165deg, var(--sh-panel-solid), #0d1a27); clip-path: var(--sh-bevel); padding: 26px 24px 22px; border: 0; transition: transform .2s; }
.sh-card::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: linear-gradient(180deg, var(--sh-cyan), transparent); opacity: .5; }
.sh-card:hover { transform: translateY(-4px); }
.sh-card__no { font-family: var(--sh-mono); font-size: .7rem; letter-spacing: 2px; color: var(--sh-brass); margin-bottom: 16px; }
.sh-card h3 { font-family: var(--sh-display); font-weight: 800; font-size: 1.24rem; margin: 14px 0 10px; }
.sh-card p { color: var(--sh-ink-2); font-size: .96rem; }
.sh-card__foot { display: flex; align-items: center; justify-content: space-between; margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--sh-line); }
.sh-card__foot a { color: var(--sh-brass-hi); font-weight: 600; font-size: .92rem; }
.sh-card__foot span { font-family: var(--sh-mono); font-size: .78rem; color: var(--sh-cyan); }

.sh-arw { position: relative; padding-right: 20px; }
.sh-arw::after { content: "→"; position: absolute; right: 0; transition: transform .2s; }
.sh-arw:hover::after { transform: translateX(4px); }

/* 网格 */
.sh-grid { display: grid; gap: 20px; }
.sh-grid--2 { grid-template-columns: repeat(2, 1fr); }
.sh-grid--3 { grid-template-columns: repeat(3, 1fr); }
.sh-grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 数据读数 ---------- */
.sh-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sh-metric { padding: 26px 22px; background: linear-gradient(160deg, rgba(55, 210, 217, .06), rgba(123, 92, 255, .04)); clip-path: var(--sh-bevel); border: 1px solid var(--sh-line); }
.sh-metric__val { font-family: var(--sh-display); font-weight: 900; font-size: clamp(2rem, 4vw, 3rem); color: var(--sh-brass-hi); line-height: 1; }
.sh-metric__val em { font-style: normal; font-size: .5em; color: var(--sh-cyan); margin-left: 3px; }
.sh-metric__lab { display: block; font-family: var(--sh-mono); font-size: .72rem; letter-spacing: 2px; text-transform: uppercase; color: var(--sh-ink-3); margin-top: 8px; }
.sh-metric__note { margin-top: 10px; color: var(--sh-ink-2); font-size: .9rem; }

/* ---------- 备注 / 声明 ---------- */
.sh-note { padding: 22px 24px; background: rgba(201, 154, 69, .07); clip-path: var(--sh-bevel-sm); border-left: 3px solid var(--sh-brass); color: var(--sh-ink-2); font-size: .96rem; }
.sh-note b { color: var(--sh-brass-hi); }

/* ---------- FAQ 折叠 ---------- */
.sh-faq details { border: 1px solid var(--sh-line); clip-path: var(--sh-bevel-sm); background: rgba(255, 255, 255, .02); margin-bottom: 12px; }
.sh-faq summary { list-style: none; padding: 18px 22px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.sh-faq summary::-webkit-details-marker { display: none; }
.sh-faq summary::after { content: "+"; font-family: var(--sh-mono); color: var(--sh-cyan); font-size: 1.3rem; transition: transform .2s; }
.sh-faq details[open] summary::after { transform: rotate(45deg); }
.sh-faq__body { padding: 0 22px 20px; color: var(--sh-ink-2); }

/* ---------- 表单 ---------- */
.sh-field { margin-bottom: 18px; }
.sh-field label { display: block; font-family: var(--sh-mono); font-size: .74rem; letter-spacing: 1px; text-transform: uppercase; color: var(--sh-ink-3); margin-bottom: 8px; }
.sh-field input, .sh-field select, .sh-field textarea {
  width: 100%; padding: 13px 15px; background: rgba(8, 17, 27, .6); border: 1px solid var(--sh-line); color: var(--sh-ink);
  font: inherit; clip-path: var(--sh-bevel-sm); border-radius: 0;
}
.sh-field input:focus, .sh-field select:focus, .sh-field textarea:focus { border-color: var(--sh-cyan); outline: none; box-shadow: 0 0 0 1px var(--sh-cyan-dim); }
.sh-form__ok { display: none; margin-top: 16px; padding: 14px 18px; background: rgba(55, 210, 217, .12); color: var(--sh-cyan); clip-path: var(--sh-bevel-sm); font-size: .92rem; }
.sh-form__ok.sh-show { display: block; }

/* ---------- 面包屑 ---------- */
.sh-crumb { font-family: var(--sh-mono); font-size: .76rem; letter-spacing: 1px; color: var(--sh-ink-3); padding: 18px 0; }
.sh-crumb a { color: var(--sh-ink-3); }
.sh-crumb a:hover { color: var(--sh-cyan); }
.sh-crumb span { color: var(--sh-brass); }

/* ---------- 页脚 ---------- */
.sh-foot { border-top: 1px solid var(--sh-line); background: var(--sh-void); padding-top: 60px; position: relative; z-index: 1; }
.sh-foot__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 34px; padding-bottom: 44px; }
.sh-foot__brand b { font-family: var(--sh-display); font-weight: 800; font-size: 1.2rem; display: block; margin-bottom: 12px; }
.sh-foot__brand p { color: var(--sh-ink-2); font-size: .92rem; }
.sh-foot h2 { font-family: var(--sh-mono); font-size: .74rem; letter-spacing: 2px; text-transform: uppercase; color: var(--sh-brass); margin-bottom: 16px; }
.sh-foot__links { display: flex; flex-direction: column; gap: 10px; }
.sh-foot__links a { color: var(--sh-ink-2); font-size: .92rem; }
.sh-foot__links a:hover { color: var(--sh-cyan); }
.sh-foot__sig div { margin-bottom: 12px; font-size: .92rem; }
.sh-foot__sig span { display: block; font-family: var(--sh-mono); font-size: .68rem; letter-spacing: 1px; color: var(--sh-ink-3); text-transform: uppercase; }
.sh-foot__sig a, .sh-foot__sig p { color: var(--sh-ink); }
.sh-foot__legal { border-top: 1px solid var(--sh-line); padding: 24px 0 40px; font-size: .82rem; color: var(--sh-ink-3); display: grid; gap: 8px; }
.sh-foot__legal a { color: var(--sh-ink-3); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 内页 Hero ---------- */
.sh-pg-hero { padding: 40px 0 56px; }
.sh-pg-hero h1 { font-family: var(--sh-display); font-weight: 900; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.1; letter-spacing: -.8px; margin: 16px 0; }
.sh-pg-hero .sh-lead { color: var(--sh-ink-2); font-size: 1.1rem; max-width: 720px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .sh-nav { position: fixed; inset: 70px 0 auto 0; flex-direction: column; background: rgba(8, 17, 27, .98); border-bottom: 1px solid var(--sh-line); padding: 16px var(--sh-gutter) 24px; gap: 2px; transform: translateY(-140%); transition: transform .3s; z-index: 30; }
  .sh-nav.sh-open { transform: none; }
  .sh-nav a { padding: 13px; font-size: 1.05rem; }
  .sh-burger { display: block; }
  .sh-top__act .sh-btn--ghost { display: none; }
  .sh-grid--4, .sh-metrics { grid-template-columns: repeat(2, 1fr); }
  .sh-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .sh-foot__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .sh-band { padding: 64px 0; }
  .sh-top__act .sh-btn--brass { padding: 10px 16px; }
  .sh-grid--2, .sh-grid--3, .sh-grid--4, .sh-metrics { grid-template-columns: 1fr; }
  .sh-foot__grid { grid-template-columns: 1fr; }
  .sh-hero__grid { grid-template-columns: 1fr !important; }
}