/* ============================================================
   玄量资本 XuanQuant Capital — 主样式表
   设计语言：深邃藏青 × 金融金 · 正式专业 · 现代金融美学
   ============================================================ */

:root {
  --bg:        #070b14;
  --bg-2:      #0b1120;
  --surface:   rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line:      rgba(255, 255, 255, 0.08);
  --line-gold: rgba(201, 164, 92, 0.35);

  --gold:      #c9a45c;
  --gold-hi:   #e8c87e;
  --gold-deep: #a8823e;
  --text:      #e9ecf3;
  --muted:     #8b93a7;
  --up:        #1ecb8b;
  --down:      #f04f5f;

  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --radius: 16px;
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, canvas { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }

::selection { background: rgba(201, 164, 92, 0.35); color: #fff; }

/* ---------- 滚动进度条 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 200;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-hi));
  box-shadow: 0 0 12px rgba(201, 164, 92, 0.6);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px;
  font-size: 15px; font-weight: 500; letter-spacing: 0.06em;
  border-radius: 999px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
              background 0.35s, border-color 0.35s;
  will-change: transform;
}
.btn-gold {
  color: #1a1305;
  background: linear-gradient(135deg, var(--gold-hi), var(--gold) 55%, var(--gold-deep));
  box-shadow: 0 8px 24px rgba(201, 164, 92, 0.28);
}
.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(201, 164, 92, 0.42);
}
.btn-ghost {
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--line-gold);
  color: var(--gold-hi);
}
.btn-arrow { transition: transform 0.3s var(--ease); }
.btn-ghost:hover .btn-arrow { transform: translateX(4px); }
.btn-sm { padding: 9px 22px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---------- 导航栏 ---------- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s, box-shadow 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(7, 11, 20, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.header-inner {
  display: flex; align-items: center; gap: 32px;
  height: 76px;
}
.logo { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  position: relative;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-family: var(--font-serif); font-size: 19px; font-weight: 700; color: #12100a;
  line-height: 1;
}
.logo-mark::before {
  content: ""; position: absolute; inset: 2px;
  background: linear-gradient(135deg, var(--gold-hi), var(--gold-deep));
  border-radius: 9px;
  transform: rotate(45deg);
  box-shadow: 0 4px 16px rgba(201, 164, 92, 0.35);
  transition: transform 0.5s var(--ease);
}
.logo:hover .logo-mark::before { transform: rotate(225deg); }
.logo-text {
  display: flex; flex-direction: column; line-height: 1.25;
  font-family: var(--font-serif); font-size: 19px; font-weight: 700; letter-spacing: 0.12em;
}
.logo-text small {
  font-family: var(--font-mono); font-size: 9px; font-weight: 500;
  letter-spacing: 0.24em; color: var(--muted);
}
.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav-link {
  position: relative;
  font-size: 14.5px; color: var(--muted); letter-spacing: 0.04em;
  transition: color 0.3s;
  padding: 6px 0;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1.5px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-cta { margin-left: 8px; }

.menu-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  padding: 8px; margin-left: auto;
}
.menu-toggle span {
  width: 24px; height: 2px; border-radius: 2px;
  background: var(--text);
  transition: transform 0.35s var(--ease), opacity 0.3s;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
  background:
    radial-gradient(1100px 500px at 75% 18%, rgba(201, 164, 92, 0.10), transparent 60%),
    radial-gradient(900px 600px at 12% 85%, rgba(43, 90, 170, 0.12), transparent 60%),
    var(--bg);
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(7,11,20,0.6) 0%, rgba(7,11,20,0.18) 42%, rgba(7,11,20,0.94) 96%);
}
.hero-content { position: relative; z-index: 2; padding: 140px 0 120px; }
.hero-eyebrow {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.42em;
  color: var(--gold);
  margin-bottom: 26px;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 900; line-height: 1.22; letter-spacing: 0.06em;
  background: linear-gradient(180deg, #ffffff 30%, #c8ccd8);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  max-width: 620px;
  margin-top: 26px;
  color: var(--muted); font-size: 16.5px; font-weight: 300;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; }

.hero-stats {
  display: flex; flex-wrap: wrap;
  margin-top: 72px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 17, 32, 0.55);
  backdrop-filter: blur(12px);
  overflow: hidden;
}
.hero-stat {
  flex: 1 1 150px;
  padding: 22px 28px;
  border-right: 1px solid var(--line);
}
.hero-stat:last-child { border-right: none; }
.hero-stat b {
  display: block;
  font-family: var(--font-mono); font-size: 27px; font-weight: 600; color: var(--gold-hi);
  line-height: 1.3;
}
.hero-stat b i { font-style: normal; font-size: 15px; color: var(--gold); }
.hero-stat span { font-size: 13px; color: var(--muted); letter-spacing: 0.08em; }

.hero-scroll {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--muted);
}
.hero-scroll-text { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.4em; }
.hero-scroll-line {
  width: 1px; height: 44px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 0; }
  45%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  55%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ---------- 行情跑马灯 ---------- */
.ticker-wrap {
  position: relative;
  border-block: 1px solid var(--line);
  background: var(--bg-2);
  overflow: hidden;
}
.ticker-wrap::before, .ticker-wrap::after {
  content: ""; position: absolute; top: 0; bottom: 0; z-index: 2; width: 90px;
  pointer-events: none;
}
.ticker-wrap::before { left: 0;  background: linear-gradient(90deg, var(--bg-2), transparent); }
.ticker-wrap::after  { right: 0; background: linear-gradient(-90deg, var(--bg-2), transparent); }
.ticker {
  display: flex; width: max-content;
  animation: tickerMove 46s linear infinite;
}
.ticker-wrap:hover .ticker { animation-play-state: paused; }
@keyframes tickerMove {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.tk-item {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 30px;
  font-family: var(--font-mono); font-size: 13px;
  border-right: 1px solid var(--line);
  white-space: nowrap;
  transition: background 0.4s;
}
.tk-item.flash { background: rgba(201, 164, 92, 0.08); }
.tk-sym { color: var(--muted); letter-spacing: 0.04em; }
.tk-price { color: var(--text); font-weight: 500; }
.tk-chg.up   { color: var(--up); }
.tk-chg.down { color: var(--down); }

/* ---------- 通用区块 ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt {
  background:
    radial-gradient(800px 400px at 85% 0%, rgba(201, 164, 92, 0.05), transparent 55%),
    var(--bg-2);
  border-block: 1px solid var(--line);
}

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.sec-label {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.38em;
  color: var(--gold); margin-bottom: 16px;
}
.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 700; line-height: 1.3; letter-spacing: 0.04em;
}
.sec-head .sec-title::after {
  content: ""; display: block;
  width: 56px; height: 2px; margin: 22px auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.sec-desc { margin-top: 20px; color: var(--muted); font-size: 15.5px; }

/* ---------- 关于我们 ---------- */
.about-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: 72px; align-items: center;
}
.about-text p { color: var(--muted); margin-top: 18px; font-size: 15.5px; }
.about-text .sec-title { margin-top: 4px; }
.about-points { margin-top: 28px; display: grid; gap: 14px; }
.about-points li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14.5px; color: var(--text);
}
.about-points svg {
  width: 20px; height: 20px; flex-shrink: 0; margin-top: 3px;
  color: var(--gold);
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
}
.stat-card {
  padding: 34px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  text-align: center;
  transition: transform 0.45s var(--ease), border-color 0.45s, box-shadow 0.45s;
}
.stat-card:hover {
  transform: translateY(-6px);
  border-color: var(--line-gold);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.4);
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 38px; font-weight: 600; color: var(--gold-hi);
  line-height: 1.2;
}
.stat-num i { font-style: normal; font-size: 18px; color: var(--gold); margin-left: 2px; }
.stat-label { margin-top: 8px; font-size: 13px; color: var(--muted); letter-spacing: 0.06em; }

/* ---------- 卡片网格（策略） ---------- */
.card-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.card {
  position: relative;
  padding: 36px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, var(--surface-2), var(--surface) 60%);
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s, box-shadow 0.45s;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0; transition: opacity 0.45s;
}
.card::after {
  content: ""; position: absolute; top: -60%; left: -80%;
  width: 60%; height: 220%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.06), transparent);
  transform: rotate(12deg);
  transition: left 0.8s var(--ease);
}
.card:hover {
  transform: translateY(-8px);
  border-color: var(--line-gold);
  box-shadow: var(--shadow-lg);
}
.card:hover::before { opacity: 1; }
.card:hover::after { left: 130%; }
.card-icon {
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 14px;
  color: var(--gold-hi);
  background: rgba(201, 164, 92, 0.1);
  border: 1px solid rgba(201, 164, 92, 0.22);
  margin-bottom: 22px;
  transition: transform 0.45s var(--ease), background 0.45s;
}
.card:hover .card-icon { transform: scale(1.08) rotate(-4deg); background: rgba(201, 164, 92, 0.18); }
.card-icon svg { width: 26px; height: 26px; }
.card h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 700; letter-spacing: 0.03em; }
.card-en {
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.22em;
  color: var(--gold); margin: 6px 0 14px;
}
.card-desc { font-size: 14px; color: var(--muted); min-height: 74px; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.card-tags span {
  font-size: 12px; padding: 4px 12px;
  border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted);
  transition: color 0.3s, border-color 0.3s;
}
.card:hover .card-tags span { color: var(--gold-hi); border-color: var(--line-gold); }

/* ---------- 投资流程 ---------- */
.process-track { position: relative; padding-top: 10px; }
.process-line {
  position: absolute; top: 34px; left: 4%; right: 4%;
  height: 1px; background: var(--line);
}
.process-line span {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-hi));
  box-shadow: 0 0 10px rgba(201, 164, 92, 0.5);
  transition: width 2.4s var(--ease) 0.3s;
}
.process-track.on .process-line span { width: 100%; }
.process-steps {
  position: relative;
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
}
.step { text-align: center; padding: 0 8px; }
.step b {
  display: inline-grid; place-items: center;
  width: 48px; height: 48px;
  font-family: var(--font-mono); font-size: 15px; font-weight: 600;
  color: var(--gold-hi);
  border: 1px solid var(--line-gold); border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 0 0 6px rgba(201, 164, 92, 0.06);
  transition: transform 0.4s var(--ease), background 0.4s, color 0.4s;
}
.step:hover b {
  transform: scale(1.12);
  background: linear-gradient(135deg, var(--gold-hi), var(--gold-deep));
  color: #1a1305;
}
.step h4 { font-family: var(--font-serif); font-size: 17px; margin: 18px 0 8px; letter-spacing: 0.05em; }
.step p { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ---------- 技术优势 ---------- */
.tech-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  gap: 64px; align-items: center;
}
.tech-list { margin-top: 40px; display: grid; gap: 26px; }
.tech-item { display: flex; gap: 18px; align-items: flex-start; }
.tech-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 12px;
  color: var(--gold-hi);
  background: rgba(201, 164, 92, 0.1);
  border: 1px solid rgba(201, 164, 92, 0.22);
}
.tech-icon svg { width: 23px; height: 23px; }
.tech-item h4 { font-size: 16.5px; font-weight: 600; letter-spacing: 0.03em; }
.tech-item p { margin-top: 5px; font-size: 14px; color: var(--muted); }

/* 终端卡片 */
.terminal-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #05070d;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(201, 164, 92, 0.06), 0 0 60px rgba(201, 164, 92, 0.05);
  overflow: hidden;
}
.terminal-head {
  display: flex; align-items: center; gap: 8px;
  padding: 13px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--line);
}
.t-dot { width: 11px; height: 11px; border-radius: 50%; }
.t-red { background: #ff5f57; } .t-yellow { background: #febc2e; } .t-green { background: #28c840; }
.terminal-title {
  margin-left: 10px;
  font-family: var(--font-mono); font-size: 12px; color: var(--muted);
}
.terminal-body {
  padding: 22px 22px 26px;
  font-family: var(--font-mono); font-size: 13px; line-height: 2.05;
  min-height: 340px;
  white-space: pre-wrap; word-break: break-all;
}
.terminal-body .t-line { display: block; opacity: 0; transform: translateY(4px); transition: opacity 0.3s, transform 0.3s; }
.terminal-body .t-line.show { opacity: 1; transform: none; }
.terminal-body .c-prompt { color: var(--gold-hi); }
.terminal-body .c-info { color: #6f9fd8; }
.terminal-body .c-ok { color: var(--up); }
.terminal-body .c-num { color: #e8c87e; }
.terminal-body .c-dim { color: #5b6478; }
.t-cursor {
  display: inline-block; width: 8px; height: 15px;
  background: var(--gold);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- 业绩表现 ---------- */
.perf-grid {
  display: grid; grid-template-columns: 1.5fr 1fr;
  gap: 28px; align-items: stretch;
}
.perf-chart-wrap {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  padding: 18px;
  min-height: 380px;
}
#perf-canvas { width: 100%; height: 100%; min-height: 344px; cursor: crosshair; }
.perf-tooltip {
  position: absolute; z-index: 3;
  padding: 8px 14px;
  font-family: var(--font-mono); font-size: 12px; line-height: 1.6;
  color: var(--text);
  background: rgba(7, 11, 20, 0.92);
  border: 1px solid var(--line-gold);
  border-radius: 8px;
  pointer-events: none;
  opacity: 0; transform: translate(-50%, -10px);
  transition: opacity 0.2s;
  white-space: nowrap;
}
.perf-tooltip.show { opacity: 1; }
.perf-tooltip b { color: var(--gold-hi); font-weight: 600; }
.perf-metrics {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.metric {
  display: flex; flex-direction: column; justify-content: center;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  transition: transform 0.4s var(--ease), border-color 0.4s;
}
.metric:hover { transform: translateY(-4px); border-color: var(--line-gold); }
.metric b {
  font-family: var(--font-mono); font-size: 26px; font-weight: 600; color: var(--text);
}
.metric b.up { color: var(--up); } .metric b.down { color: var(--down); }
.metric span { margin-top: 4px; font-size: 12.5px; color: var(--muted); letter-spacing: 0.06em; }
.perf-note { margin-top: 26px; text-align: center; font-size: 12.5px; color: var(--muted); opacity: 0.8; }

/* ---------- 核心团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.member {
  padding: 38px 26px;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  transition: transform 0.45s var(--ease), border-color 0.45s, box-shadow 0.45s;
}
.member:hover {
  transform: translateY(-8px);
  border-color: var(--line-gold);
  box-shadow: var(--shadow-lg);
}
.avatar {
  width: 88px; height: 88px;
  display: grid; place-items: center;
  margin: 0 auto 22px;
  font-family: var(--font-serif); font-size: 34px; font-weight: 700; color: #fff;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.4);
  transition: transform 0.45s var(--ease);
}
.member:hover .avatar { transform: scale(1.08); }
.avatar-1 { background: linear-gradient(135deg, #c9a45c, #7a5b1e); }
.avatar-2 { background: linear-gradient(135deg, #3d7fa8, #1d3f58); }
.avatar-3 { background: linear-gradient(135deg, #8a63c9, #4a2f7a); }
.avatar-4 { background: linear-gradient(135deg, #3da88a, #1d5847); }
.member h3 { font-family: var(--font-serif); font-size: 19px; letter-spacing: 0.06em; }
.member-role {
  margin: 6px 0 14px;
  font-size: 12.5px; color: var(--gold); letter-spacing: 0.1em;
}
.member-bio { font-size: 13px; color: var(--muted); line-height: 1.8; }

/* ---------- 资讯洞察 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, var(--surface-2), var(--surface));
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s, box-shadow 0.45s;
}
.news-card:hover {
  transform: translateY(-8px);
  border-color: var(--line-gold);
  box-shadow: var(--shadow-lg);
}
.news-thumb {
  position: relative;
  height: 168px;
  display: grid; place-items: center;
  overflow: hidden;
}
.news-thumb::before {
  content: ""; position: absolute; inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.045) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.045) 0 1px, transparent 1px 28px);
}
.news-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7,11,20,0.55));
}
.thumb-1 { background: linear-gradient(135deg, #2a2415, #4a3a16 55%, #6b5420); }
.thumb-2 { background: linear-gradient(135deg, #14202e, #1d3f58 55%, #2a5a7d); }
.thumb-3 { background: linear-gradient(135deg, #221631, #41225e 55%, #5a3283); }
.news-thumb span {
  position: relative; z-index: 1;
  font-family: var(--font-serif); font-size: 30px; font-weight: 700;
  letter-spacing: 0.5em; text-indent: 0.5em;
  color: rgba(255, 255, 255, 0.85);
  transition: transform 0.5s var(--ease), letter-spacing 0.5s var(--ease);
}
.news-card:hover .news-thumb span { transform: scale(1.1); letter-spacing: 0.62em; }
.news-body { padding: 26px 26px 30px; }
.news-meta {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 12px; color: var(--muted);
}
.news-meta i {
  font-style: normal;
  padding: 2px 10px;
  font-size: 11px;
  color: var(--gold);
  border: 1px solid var(--line-gold);
  border-radius: 999px;
}
.news-body h3 {
  margin-top: 14px;
  font-family: var(--font-serif); font-size: 17.5px; font-weight: 700; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-body p {
  margin-top: 12px;
  font-size: 13.5px; color: var(--muted); line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-link {
  display: inline-flex; align-items: center; gap: 6px;
  margin-top: 18px;
  font-size: 13.5px; color: var(--gold-hi); letter-spacing: 0.05em;
}
.news-link span { transition: transform 0.3s var(--ease); }
.news-link:hover span { transform: translateX(5px); }

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 72px; align-items: start;
}
.contact-info > p { color: var(--muted); margin-top: 18px; font-size: 15.5px; max-width: 460px; }
.contact-list { margin-top: 38px; display: grid; gap: 22px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: 12px;
  color: var(--gold-hi);
  background: rgba(201, 164, 92, 0.1);
  border: 1px solid rgba(201, 164, 92, 0.22);
}
.contact-icon svg { width: 21px; height: 21px; }
.contact-list b { display: block; font-size: 15px; font-weight: 600; }
.contact-list span { font-size: 13.5px; color: var(--muted); }

.contact-form {
  padding: 40px 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, var(--surface-2), var(--surface));
  box-shadow: var(--shadow-lg);
}
.contact-form h3 {
  font-family: var(--font-serif); font-size: 22px; letter-spacing: 0.06em;
  margin-bottom: 26px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block;
  font-size: 13px; color: var(--muted); letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: inherit; font-size: 14px; color: var(--text);
  background: rgba(7, 11, 20, 0.6);
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s;
  resize: vertical;
}
.form-field select { appearance: none; }
.form-field input::placeholder, .form-field textarea::placeholder { color: rgba(139, 147, 167, 0.55); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.14);
}
.form-tip { margin-top: 14px; font-size: 12px; color: var(--muted); text-align: center; opacity: 0.8; }

/* 表单成功提示 */
.toast {
  position: fixed; bottom: 34px; left: 50%;
  transform: translate(-50%, 20px);
  z-index: 300;
  padding: 14px 28px;
  font-size: 14px; color: #12240f;
  background: linear-gradient(135deg, #4ade80, #22b45e);
  border-radius: 999px;
  box-shadow: 0 16px 40px rgba(34, 180, 94, 0.35);
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: #05070d;
  padding: 72px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand p { margin-top: 20px; max-width: 320px; font-size: 13.5px; color: var(--muted); }
.footer-col h5 {
  font-size: 14px; font-weight: 600; letter-spacing: 0.14em; color: var(--text);
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  padding: 5px 0;
  font-size: 13.5px; color: var(--muted);
  transition: color 0.3s, transform 0.3s var(--ease);
}
.footer-col a:hover { color: var(--gold-hi); transform: translateX(4px); }
.footer-risk {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.footer-risk p { font-size: 12px; color: var(--muted); opacity: 0.75; line-height: 1.9; }
.footer-bottom {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  padding: 20px 0 26px;
  border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--muted);
}
.footer-bottom b { font-family: var(--font-mono); font-weight: 500; }

/* ---------- 返回顶部 ---------- */
.to-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 90;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  color: var(--gold-hi);
  background: rgba(11, 17, 32, 0.85);
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  backdrop-filter: blur(10px);
  opacity: 0; transform: translateY(16px); pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), background 0.3s;
}
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: rgba(201, 164, 92, 0.18); }
.to-top svg { width: 20px; height: 20px; }

/* ---------- 滚动渐入动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .about-grid, .tech-grid, .contact-grid { grid-template-columns: 1fr; gap: 52px; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; max-width: 560px; margin-inline: auto; }
  .perf-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 36px 20px; }
  .process-line { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .nav {
    position: fixed; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 24px 22px;
    background: rgba(7, 11, 20, 0.97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform 0.4s var(--ease), opacity 0.4s;
  }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-link { padding: 13px 4px; font-size: 15px; border-bottom: 1px solid var(--line); }
  .nav-link::after { display: none; }
  .nav-cta { margin: 16px 0 0; text-align: center; }
  .menu-toggle { display: flex; }
  .header-inner { height: 76px; }
  .hero-content { padding: 120px 0 100px; }
  .hero-stat { flex: 1 1 42%; border-bottom: 1px solid var(--line); }
  .hero-stat:nth-child(2n) { border-right: none; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 560px) {
  .card-grid, .team-grid, .about-stats, .perf-metrics, .process-steps { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 30px 22px; }
}

/* ---------- 减少动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}