/* ===== 世界探索 RPG V5.1 — 着陆页样式 ===== */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&family=DM+Mono:wght@400;500&display=swap');

:root {
    --bg-deep: #0b0e14;
    --bg-card: #111827;
    --bg-card-hover: #1a2332;
    --border-subtle: rgba(255,255,255,0.06);
    --border-hover: rgba(255,255,255,0.12);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --amber: #f0b429;
    --amber-dim: rgba(240,180,41,0.15);
    --amber-glow: rgba(240,180,41,0.3);
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    --font-mono: 'DM Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg-deep); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
code { font-family: var(--font-mono); font-size: 0.85em; background: rgba(255,255,255,0.06); padding: 2px 6px; border-radius: 4px; }

/* ===== 粒子画布 ===== */
#particleCanvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }

/* ===== 导航栏 ===== */
.landing-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 12px 0; transition: all 0.3s; }
.landing-nav.scrolled { background: rgba(11,14,20,0.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border-subtle); }
.nav-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand-icon { font-size: 1.4em; }
.nav-brand-text { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--text-primary); }
.nav-brand-divider { width: 1px; height: 20px; background: var(--border-subtle); margin: 0 4px; }
.nav-brand-team { display: flex; align-items: center; gap: 4px; }
.team-icon { font-size: 0.9em; }
.team-name { font-family: var(--font-display); font-weight: 600; font-size: 0.85rem; color: var(--amber); }
.nav-links { display: flex; gap: 6px; }
.nav-links a { font-size: 0.85rem; color: var(--text-secondary); padding: 6px 12px; border-radius: 6px; transition: all 0.2s; }
.nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); }
.nav-cta { font-family: var(--font-display); font-size: 0.85rem; font-weight: 600; color: #1a1a2e; background: var(--amber); padding: 8px 20px; border-radius: 8px; transition: all 0.2s; }
.nav-cta:hover { background: #e6a817; transform: translateY(-1px); box-shadow: 0 4px 16px var(--amber-glow); }
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.4rem; cursor: pointer; }

/* ===== Hero ===== */
.hero-section { position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg-img { width: 100%; height: 100%; object-fit: cover; opacity: 0.35; }
.hero-bg-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,14,20,0.3) 0%, rgba(11,14,20,0.7) 50%, var(--bg-deep) 100%); }
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; padding: 120px 24px 80px; }
.hero-brand-banner { display: inline-flex; align-items: center; gap: 12px; background: rgba(240,180,41,0.08); border: 1px solid rgba(240,180,41,0.2); border-radius: 12px; padding: 10px 20px; margin-bottom: 24px; }
.brand-icon-box { font-size: 1.3em; }
.brand-text-box { display: flex; flex-direction: column; align-items: flex-start; }
.brand-main { font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--amber); }
.brand-sub { font-size: 0.65rem; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; }
.brand-divider { width: 1px; height: 28px; background: rgba(240,180,41,0.2); }
.brand-status { font-family: var(--font-mono); font-size: 0.75rem; color: #22c55e; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); padding: 4px 10px; border-radius: 6px; }
.hero-title { font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 700; line-height: 1.1; margin-bottom: 20px; }
.hero-title-accent { color: var(--amber); text-shadow: 0 0 40px var(--amber-glow); }
.hero-subtitle { font-size: 1.05rem; color: var(--text-secondary); line-height: 1.8; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-bottom: 48px; }
.btn-primary-gold { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: #1a1a2e; background: var(--amber); padding: 14px 36px; border-radius: 10px; border: none; cursor: pointer; transition: all 0.25s; display: inline-block; }
.btn-primary-gold:hover { background: #e6a817; transform: translateY(-2px); box-shadow: 0 8px 32px var(--amber-glow); }
.btn-primary-gold.btn-large { font-size: 1.1rem; padding: 16px 44px; }
.btn-outline-light { font-family: var(--font-display); font-weight: 500; font-size: 1rem; color: var(--text-secondary); background: transparent; border: 1px solid var(--border-hover); padding: 14px 36px; border-radius: 10px; cursor: pointer; transition: all 0.25s; }
.btn-outline-light:hover { color: var(--text-primary); border-color: var(--text-muted); background: rgba(255,255,255,0.03); }
.hero-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; max-width: 700px; margin: 0 auto 40px; }
.feature-chip { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 16px 8px; border-radius: 10px; border: 1px solid var(--border-subtle); background: rgba(255,255,255,0.02); transition: all 0.3s; }
.feature-chip:hover { border-color: var(--border-hover); background: rgba(255,255,255,0.04); transform: translateY(-2px); }
.f-icon { font-size: 1.3em; }
.f-label { font-family: var(--font-display); font-weight: 600; font-size: 0.8rem; }
.f-desc { font-size: 0.7rem; color: var(--text-muted); }
.f-amber .f-label { color: var(--amber); }
.f-indigo .f-label { color: #6366f1; }
.f-violet .f-label { color: #a855f7; }
.f-cyan .f-label { color: #06b6d4; }
.hero-scroll-hint { margin-top: 16px; }
.hero-scroll-hint button { background: none; border: none; color: var(--text-muted); font-size: 0.85rem; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; margin: 0 auto; }
.scroll-arrow { animation: bounce 2s infinite; }
@keyframes bounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ===== 入场动画 ===== */
.anim-up { opacity: 0; transform: translateY(30px); animation: fadeUp 0.8s calc(var(--delay, 0s)) forwards; }
@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
.scroll-reveal { opacity: 0; transform: translateY(24px); transition: all 0.6s cubic-bezier(0.22,1,0.36,1); }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }
@keyframes cardReveal { from { opacity:0; transform:translateY(20px) scale(0.95); } to { opacity:1; transform:translateY(0) scale(1); } }

/* ===== 通用板块 ===== */
.section-container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.content-section { padding: 80px 0; position: relative; z-index: 1; }
.section-border-top { border-top: 1px solid var(--border-subtle); }
.section-header { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 48px; }
.section-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3em; flex-shrink: 0; }
.icon-amber { background: var(--amber-dim); }
.icon-cyan { background: rgba(6,182,212,0.15); }
.icon-emerald { background: rgba(34,197,94,0.15); }
.icon-violet { background: rgba(168,85,247,0.15); }
.icon-rose { background: rgba(236,72,153,0.15); }
.section-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; margin-bottom: 4px; }
.section-subtitle { font-size: 0.9rem; color: var(--text-muted); }

/* ===== 统计条 ===== */
.stats-section { padding: 48px 0; position: relative; z-index: 1; border-top: 1px solid var(--border-subtle); border-bottom: 1px solid var(--border-subtle); background: rgba(255,255,255,0.01); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item { display: flex; flex-direction: column; gap: 4px; }
.stat-value { font-family: var(--font-mono); font-size: 2rem; font-weight: 700; color: var(--amber); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* ===== 时间线 ===== */
.timeline { position: relative; padding: 40px 0; }
.timeline-line { position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, transparent, var(--border-hover) 10%, var(--border-hover) 90%, transparent); transform: translateX(-50%); }
.timeline-item { position: relative; display: flex; margin-bottom: 48px; }
.timeline-item[data-side="left"] { justify-content: flex-start; padding-right: calc(50% + 32px); }
.timeline-item[data-side="right"] { justify-content: flex-end; padding-left: calc(50% + 32px); }
.timeline-dot { position: absolute; left: 50%; top: 24px; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1em; transform: translateX(-50%); z-index: 2; border: 2px solid; }
.dot-stone { background: rgba(120,113,108,0.2); border-color: rgba(120,113,108,0.4); }
.dot-blue { background: rgba(59,130,246,0.2); border-color: rgba(59,130,246,0.4); }
.dot-violet { background: rgba(168,85,247,0.2); border-color: rgba(168,85,247,0.4); }
.dot-emerald { background: rgba(34,197,94,0.2); border-color: rgba(34,197,94,0.4); }
.dot-amber { background: var(--amber-dim); border-color: rgba(240,180,41,0.4); }
.timeline-card { width: 100%; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; transition: all 0.3s; }
.timeline-card:hover { border-color: var(--border-hover); }
.card-stone { border-left: 3px solid #78716c; }
.card-blue { border-left: 3px solid #3b82f6; }
.card-violet { border-left: 3px solid #a855f7; }
.card-emerald { border-left: 3px solid #22c55e; }
.card-amber { border-left: 3px solid var(--amber); }
.timeline-card-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; cursor: pointer; gap: 12px; flex-wrap: wrap; }
.timeline-card-header:hover { background: rgba(255,255,255,0.02); }
.tc-title-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tc-version { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; padding: 2px 10px; border-radius: 6px; }
.v-stone { color: #d6d3d1; background: rgba(120,113,108,0.15); }
.v-blue { color: #93c5fd; background: rgba(59,130,246,0.15); }
.v-violet { color: #c4b5fd; background: rgba(168,85,247,0.15); }
.v-emerald { color: #86efac; background: rgba(34,197,94,0.15); }
.v-amber { color: var(--amber); background: var(--amber-dim); }
.tc-codename { font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; padding: 2px 10px; border-radius: 6px; }
.b-stone { color: #a8a29e; background: rgba(120,113,108,0.1); }
.b-blue { color: #60a5fa; background: rgba(59,130,246,0.1); }
.b-violet { color: #a78bfa; background: rgba(168,85,247,0.1); }
.b-emerald { color: #4ade80; background: rgba(34,197,94,0.1); }
.b-amber { color: #fbbf24; background: rgba(240,180,41,0.1); }
.tc-badge { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-muted); background: rgba(255,255,255,0.05); padding: 2px 8px; border-radius: 4px; }
.badge-current { color: #22c55e; background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); }
.tc-date { font-size: 0.8rem; color: var(--text-muted); }
.tc-toggle { font-size: 0.8rem; color: var(--text-muted); transition: transform 0.3s; }
.tc-summary { font-size: 0.88rem; color: var(--text-secondary); padding: 0 20px 16px; line-height: 1.7; }
.tc-details { padding: 0 20px 20px; }
.tc-stats-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.tc-stat { font-family: var(--font-mono); font-size: 0.8rem; padding: 4px 12px; border-radius: 6px; }
.s-stone { color: #d6d3d1; background: rgba(120,113,108,0.1); }
.s-blue { color: #93c5fd; background: rgba(59,130,246,0.1); }
.s-violet { color: #c4b5fd; background: rgba(168,85,247,0.1); }
.s-emerald { color: #86efac; background: rgba(34,197,94,0.1); }
.s-amber { color: var(--amber); background: var(--amber-dim); }
.tc-highlights { display: flex; flex-direction: column; gap: 8px; }
.tc-hl { display: flex; align-items: flex-start; gap: 8px; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
.tc-hl-icon { flex-shrink: 0; }
.timeline-end { text-align: center; padding-top: 24px; }
.timeline-end-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--amber); margin: 0 auto 8px; box-shadow: 0 0 12px var(--amber-glow); }
.timeline-end-text { font-size: 0.85rem; color: var(--text-muted); }

/* ===== 系统卡片 ===== */
.systems-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 48px; }
.system-card { border-radius: 12px; overflow: hidden; cursor: pointer; transition: all 0.3s; border: 1px solid var(--border-subtle); }
.system-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.system-card.expanded { border-color: var(--border-hover); }
.system-card-bg { position: relative; min-height: 180px; }
.system-card-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.2; }
.system-card-content { position: relative; z-index: 1; padding: 24px; }
.system-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.system-emoji { font-size: 1.5em; }
.system-name { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; }
.system-summary { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }
.system-details { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border-subtle); }
.mech-item { display: flex; gap: 8px; margin-bottom: 10px; font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }
.mech-label { font-family: var(--font-display); font-weight: 600; font-size: 0.8rem; white-space: nowrap; }

/* ===== 品质分布条 ===== */
.rarity-bar-section { margin-top: 16px; }
.rarity-bar-title { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin-bottom: 12px; color: var(--text-secondary); }
.rarity-bar { display: flex; height: 32px; border-radius: 8px; overflow: hidden; }
.rarity-seg { display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 600; color: rgba(0,0,0,0.7); transition: all 0.3s; }
.rarity-seg:hover { filter: brightness(1.2); }
.rarity-legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 10px; font-size: 0.8rem; color: var(--text-secondary); }
.rarity-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 4px; vertical-align: middle; }

/* ===== 版本对比 ===== */
.diff-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.diff-tab { font-family: var(--font-display); font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); background: rgba(255,255,255,0.03); border: 1px solid var(--border-subtle); padding: 8px 16px; border-radius: 8px; cursor: pointer; transition: all 0.2s; }
.diff-tab:hover { color: var(--text-primary); border-color: var(--border-hover); }
.diff-tab.active { color: var(--amber); border-color: rgba(240,180,41,0.3); background: var(--amber-dim); }
.diff-file-info { margin-bottom: 16px; }
.diff-file-path { font-size: 0.85rem; color: var(--amber); }
.diff-file-desc { display: block; font-size: 0.82rem; color: var(--text-muted); margin-top: 4px; }
.diff-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.diff-panel { border-radius: 10px; overflow: hidden; border: 1px solid var(--border-subtle); background: var(--bg-card); }
.diff-panel-header { display: flex; align-items: center; gap: 8px; padding: 10px 16px; border-bottom: 1px solid var(--border-subtle); background: rgba(255,255,255,0.02); }
.diff-dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-red { background: #ef4444; }
.dot-green { background: #22c55e; }
.diff-label { font-family: var(--font-display); font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.diff-code { margin: 0; padding: 0; font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.7; overflow-x: auto; }
.code-line { display: flex; padding: 0 12px; }
.code-line.hl-new { background: rgba(34,197,94,0.08); }
.line-num { width: 32px; flex-shrink: 0; color: var(--text-muted); text-align: right; padding-right: 12px; user-select: none; opacity: 0.5; }
.line-text { white-space: pre; }

/* ===== 装备演示 ===== */
.demo-controls { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 32px; padding: 20px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 12px; }
.demo-slider-group { display: flex; align-items: center; gap: 12px; }
.demo-slider-group label { font-size: 0.85rem; color: var(--text-secondary); white-space: nowrap; }
.demo-slider-group input[type="range"] { width: 160px; accent-color: var(--amber); }
.luck-value { font-family: var(--font-mono); font-weight: 700; color: var(--amber); min-width: 24px; }
.roll-count { font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-muted); }
.equipment-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 20px; }
.demo-empty { grid-column: 1 / -1; text-align: center; padding: 60px 24px; background: var(--bg-card); border: 1px dashed var(--border-hover); border-radius: 12px; }
.demo-empty-icon { font-size: 2.5rem; display: block; margin-bottom: 12px; }
.demo-empty p { color: var(--text-secondary); font-size: 0.9rem; }
.demo-empty-sub { font-size: 0.8rem !important; color: var(--text-muted) !important; margin-top: 4px; }
.equip-card { position: relative; border-radius: 12px; border: 1px solid; overflow: hidden; transition: all 0.3s; }
.equip-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.3); }
.equip-glow { position: absolute; top: 0; left: 0; right: 0; height: 2px; opacity: 0.6; }
.equip-body { padding: 20px; }
.equip-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.equip-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
.equip-tags { display: flex; gap: 6px; }
.equip-rarity { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; padding: 2px 8px; border-radius: 4px; border: 1px solid; }
.equip-slot { font-size: 0.7rem; color: var(--text-muted); background: rgba(255,255,255,0.05); padding: 2px 8px; border-radius: 4px; }
.equip-sparkle { font-size: 1.3em; animation: sparkle 1.5s infinite; }
@keyframes sparkle { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.2); } }
.equip-stats { display: flex; gap: 16px; margin-bottom: 12px; }
.equip-stat { display: flex; flex-direction: column; gap: 2px; }
.stat-label { font-size: 0.7rem; color: var(--text-muted); }
.stat-val { font-family: var(--font-mono); font-weight: 700; font-size: 0.9rem; }
.stat-atk { color: #ef4444; }
.stat-def { color: #3b82f6; }
.equip-affixes { display: flex; flex-direction: column; gap: 6px; padding-top: 12px; border-top: 1px solid var(--border-subtle); }
.affix-item { display: flex; align-items: center; gap: 6px; font-size: 0.8rem; }
.affix-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.affix-name { font-weight: 600; }
.affix-val { color: var(--text-muted); margin-left: auto; }
.equip-no-affix { font-size: 0.8rem; color: var(--text-muted); padding-top: 12px; border-top: 1px solid var(--border-subtle); }
.rarity-summary { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; padding: 12px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 10px; }
.rarity-stat-item { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; }
.rarity-stat-dot { width: 8px; height: 8px; border-radius: 50%; }
.rarity-stat-count { font-family: var(--font-mono); color: var(--text-muted); }

/* ===== 文件变更表格 ===== */
.file-table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border-subtle); }
.file-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.file-table thead { background: rgba(255,255,255,0.03); }
.file-table th { font-family: var(--font-display); font-weight: 600; color: var(--text-secondary); padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border-subtle); white-space: nowrap; }
.file-table td { padding: 10px 16px; border-bottom: 1px solid var(--border-subtle); color: var(--text-secondary); }
.file-table tr:last-child td { border-bottom: none; }
.file-table tr:hover td { background: rgba(255,255,255,0.02); }
.type-badge { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; padding: 2px 8px; border-radius: 4px; white-space: nowrap; }
.type-new { color: #22c55e; background: rgba(34,197,94,0.1); }
.type-rewrite { color: #f97316; background: rgba(249,115,22,0.1); }
.type-append { color: #3b82f6; background: rgba(59,130,246,0.1); }
.type-edit { color: #a855f7; background: rgba(168,85,247,0.1); }

/* ===== 成就 ===== */
.achievement-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.ach-card { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 20px 12px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 10px; text-align: center; transition: all 0.3s; }
.ach-card:hover { border-color: var(--amber); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(240,180,41,0.1); }
.ach-emoji { font-size: 1.6em; }
.ach-name { font-family: var(--font-display); font-weight: 600; font-size: 0.85rem; }
.ach-desc { font-size: 0.75rem; color: var(--text-muted); }

/* ===== 天赋树 ===== */
.talent-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.talent-card { display: flex; align-items: center; gap: 12px; padding: 16px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 10px; transition: all 0.3s; }
.talent-card:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.talent-emoji { font-size: 1.5em; }
.talent-info { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.talent-name { font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; }
.talent-effect { font-size: 0.8rem; color: var(--text-muted); }
.talent-cost { font-family: var(--font-mono); font-size: 0.85rem; color: var(--amber); white-space: nowrap; }

/* ===== 部署说明 ===== */
.deploy-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.deploy-step { display: flex; gap: 16px; padding: 20px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 10px; }
.deploy-num { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: var(--amber); opacity: 0.5; line-height: 1; }
.deploy-step strong { font-family: var(--font-display); font-size: 0.9rem; display: block; margin-bottom: 4px; }
.deploy-step p { font-size: 0.82rem; color: var(--text-muted); }
.compat-section { padding: 24px; background: var(--bg-card); border: 1px solid var(--border-subtle); border-radius: 12px; }
.compat-title { font-family: var(--font-display); font-size: 1rem; font-weight: 600; margin-bottom: 16px; color: #22c55e; }
.compat-list { display: flex; flex-direction: column; gap: 8px; }
.compat-item { font-size: 0.85rem; color: var(--text-secondary); padding-left: 4px; }

/* ===== CTA ===== */
.cta-section { padding: 80px 0; position: relative; z-index: 1; }
.cta-title { font-family: var(--font-display); font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
.cta-subtitle { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; margin-left: auto; margin-right: auto; }

/* ===== Footer ===== */
.landing-footer { padding: 40px 0; border-top: 1px solid var(--border-subtle); position: relative; z-index: 1; }
.footer-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.footer-brand { display: flex; align-items: center; gap: 8px; }
.footer-brand-icon { font-size: 1.2em; }
.footer-brand-text { font-family: var(--font-display); font-weight: 700; font-size: 1rem; }
.footer-version { font-family: var(--font-mono); font-size: 0.7rem; color: var(--amber); background: var(--amber-dim); padding: 2px 8px; border-radius: 4px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { font-size: 0.85rem; color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text-primary); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; border-top: 1px solid var(--border-subtle); }
.footer-team { display: flex; align-items: center; gap: 8px; }
.footer-team-icon { font-size: 0.9em; }
.footer-team-name { font-family: var(--font-display); font-weight: 700; font-size: 0.9rem; color: var(--amber); }
.footer-team-en { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 1px; }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .systems-grid { grid-template-columns: 1fr; }
    .diff-panels { grid-template-columns: 1fr; }
    .equipment-grid { grid-template-columns: repeat(2, 1fr); }
    .achievement-grid { grid-template-columns: repeat(3, 1fr); }
    .talent-grid { grid-template-columns: 1fr; }
    .deploy-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(11,14,20,0.95); backdrop-filter: blur(12px); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--border-subtle); }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .nav-cta { display: none; }
    .nav-brand-divider, .nav-brand-team { display: none; }
    .hero-features { grid-template-columns: repeat(2, 1fr); }
    .hero-cta { flex-direction: column; align-items: center; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .timeline-line { left: 20px; }
    .timeline-item[data-side="left"], .timeline-item[data-side="right"] { padding-left: 60px; padding-right: 0; justify-content: flex-start; }
    .timeline-dot { left: 20px; }
    .equipment-grid { grid-template-columns: 1fr; }
    .achievement-grid { grid-template-columns: repeat(2, 1fr); }
    .demo-controls { flex-direction: column; align-items: flex-start; }
    .footer-top, .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .footer-links { flex-wrap: wrap; justify-content: center; }
    .section-title { font-size: 1.4rem; }
    .hero-title { font-size: 2.2rem; }
}

@media (max-width: 480px) {
    .hero-features { grid-template-columns: 1fr 1fr; gap: 8px; }
    .achievement-grid { grid-template-columns: 1fr 1fr; }
    .tc-stats-row { flex-direction: column; }
}