/* =============================================================
   XIYOU:WUJIE Official Site - AAA-style
   Color system: deep night + jade green + gold accent
   ============================================================= */
:root {
    --bg-0: #07090d;
    --bg-1: #0d1117;
    --bg-2: #131922;
    --bg-3: #1b2330;
    --line: rgba(255, 255, 255, 0.08);
    --line-strong: rgba(255, 255, 255, 0.16);
    --ink-1: #f3f5f8;
    --ink-2: #c8cdd8;
    --ink-3: #8a93a3;
    --ink-4: #5a6373;
    --gold: #d8b15a;
    --gold-soft: #f1d99a;
    --jade: #4ec59a;
    --crimson: #c14b4b;
    --shadow: 0 30px 60px -20px rgba(0, 0, 0, .7);
    --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
    --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; -webkit-font-smoothing: antialiased; }
html, body { margin: 0; padding: 0; background: var(--bg-0); color: var(--ink-1); font-family: var(--sans); line-height: 1.65; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s, opacity .25s; }
a:hover { color: var(--gold); }
button { font-family: inherit; cursor: pointer; }

/* === Top navigation === */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 48px;
    background: linear-gradient(180deg, rgba(7, 9, 13, .85) 0%, rgba(7, 9, 13, 0) 100%);
    transition: background .35s, padding .35s, border-color .35s;
    border-bottom: 1px solid transparent;
}
.navbar.scrolled {
    background: rgba(7, 9, 13, .92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 10px 48px;
    border-bottom-color: var(--line);
}
.navbar .brand {
    display: flex; align-items: center; gap: 12px;
    font-family: var(--serif); letter-spacing: 2px;
}
.brand-mark {
    width: 38px; height: 38px; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--gold) 0%, #a07a2a 100%);
    color: #0c0d10; font-weight: 900; font-size: 18px;
    border-radius: 6px; box-shadow: 0 0 20px rgba(216, 177, 90, .35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 18px; color: #fff; }
.brand-text small { font-size: 10px; color: var(--ink-3); letter-spacing: 3px; }

.main-nav { display: flex; gap: 32px; align-items: center; }
.main-nav a {
    font-size: 14px; color: var(--ink-2); letter-spacing: 1px;
    position: relative; padding: 6px 0;
}
.main-nav a::after {
    content: ''; position: absolute; left: 50%; bottom: 0;
    width: 0; height: 1px; background: var(--gold);
    transition: width .3s, left .3s;
}
.main-nav a:hover::after { width: 100%; left: 0; }

.nav-right { display: flex; align-items: center; gap: 18px; }
.lang-switch {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border: 1px solid var(--line);
    border-radius: 999px; font-size: 12px; color: var(--ink-3);
}
.lang-switch .ls-btn { color: var(--ink-3); padding: 2px 6px; }
.lang-switch .ls-btn.active { color: var(--gold); }
.lang-switch .ls-sep { opacity: .35; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 26px; border-radius: 4px; font-size: 14px;
    letter-spacing: 1.5px; font-weight: 600; border: none;
    transition: transform .25s, box-shadow .25s, background .25s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--gold) 0%, #b58a32 100%);
    color: #0a0c10;
    box-shadow: 0 12px 30px -8px rgba(216, 177, 90, .55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 38px -8px rgba(216, 177, 90, .7); color: #0a0c10; }
.btn-ghost { background: transparent; color: var(--ink-1); border: 1px solid var(--line-strong); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }

.hamburger { display: none; background: transparent; border: 0; color: var(--ink-1); font-size: 22px; }

/* === Hero === */
.hero {
    position: relative; min-height: 100vh; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    text-align: center; padding: 0 20px;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
}
.hero-slide {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0; transition: opacity 1.6s ease;
    animation: slow-zoom 18s ease-in-out infinite alternate;
}
.hero-slide.active { opacity: 1; }
@keyframes slow-zoom {
    from { transform: scale(1.02); }
    to   { transform: scale(1.12); }
}
.hero::before {
    content: ''; position: absolute; inset: 0; z-index: 1;
    background:
        radial-gradient(ellipse at top, rgba(0, 0, 0, .15), transparent 60%),
        linear-gradient(180deg, rgba(7, 9, 13, .55) 0%, rgba(7, 9, 13, .45) 50%, rgba(7, 9, 13, .98) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 980px; }
.eyebrow {
    display: inline-block;
    font-size: 12px; letter-spacing: 6px; color: var(--gold);
    padding: 6px 14px; border: 1px solid rgba(216, 177, 90, .3);
    border-radius: 999px; margin-bottom: 28px; text-transform: uppercase;
}
.hero h1 {
    font-family: var(--serif);
    font-size: clamp(48px, 8vw, 108px);
    margin: 0 0 14px; letter-spacing: 8px; font-weight: 700;
    background: linear-gradient(180deg, #fff 0%, var(--gold-soft) 100%);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    text-shadow: 0 6px 30px rgba(216, 177, 90, .15);
    animation: fade-up 1.2s .2s both;
}
.hero .subtitle {
    font-family: var(--serif); font-size: clamp(18px, 2.4vw, 30px);
    margin: 0 0 24px; color: var(--ink-1); letter-spacing: 4px;
    animation: fade-up 1.2s .4s both;
}
.hero .lead {
    font-size: 15px; color: var(--ink-2); max-width: 720px; margin: 0 auto 44px;
    letter-spacing: .5px; animation: fade-up 1.2s .55s both;
}
.hero-actions { display: flex; gap: 18px; justify-content: center; animation: fade-up 1.2s .7s both; }
@keyframes fade-up {
    from { opacity: 0; transform: translateY(28px); }
    to   { opacity: 1; transform: translateY(0); }
}

.scroll-hint {
    position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
    color: var(--ink-3); font-size: 11px; letter-spacing: 4px; z-index: 3;
    animation: pulse 2.5s ease-in-out infinite;
}
.scroll-hint::after {
    content: ''; display: block; width: 1px; height: 28px;
    background: var(--ink-3); margin: 10px auto 0;
}
@keyframes pulse {
    0%, 100% { opacity: .4; transform: translate(-50%, 0); }
    50%      { opacity: 1;  transform: translate(-50%, 6px); }
}

/* === Stats bar === */
.stats {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: linear-gradient(180deg, var(--bg-1), var(--bg-0));
}
.stats-row {
    max-width: 1200px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(6, 1fr);
    padding: 36px 24px;
}
.stat { text-align: center; border-right: 1px solid var(--line); padding: 8px; }
.stat:last-child { border-right: 0; }
.stat-v { font-family: var(--serif); font-size: 32px; color: var(--gold); font-weight: 700; letter-spacing: 1px; }
.stat-k { font-size: 12px; color: var(--ink-3); letter-spacing: 3px; margin-top: 4px; }

/* === Sections === */
section { padding: 120px 24px; }
.section-head { text-align: center; max-width: 800px; margin: 0 auto 70px; }
.section-tag { font-size: 12px; color: var(--gold); letter-spacing: 6px; text-transform: uppercase; }
.section-title {
    font-family: var(--serif); font-size: clamp(32px, 4.5vw, 56px);
    margin: 14px 0 18px; letter-spacing: 4px; line-height: 1.2;
}
.section-lead { color: var(--ink-2); font-size: 16px; max-width: 720px; margin: 0 auto; }

.shell { max-width: 1280px; margin: 0 auto; }

/* === World === */
.world {
    background:
        radial-gradient(ellipse at 70% 30%, rgba(78, 197, 154, .07), transparent 60%),
        var(--bg-0);
}
.world-grid {
    max-width: 1100px; margin: 0 auto; display: grid;
    grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.world-card {
    aspect-ratio: 4/5;
    background-size: cover; background-position: center;
    border-radius: 12px; position: relative; overflow: hidden;
    box-shadow: var(--shadow);
}
.world-card::after {
    content: ''; position: absolute; inset: 0;
    border: 1px solid rgba(216, 177, 90, .25);
    border-radius: 12px; pointer-events: none;
}
.world-text h2 {
    font-family: var(--serif); font-size: 44px; margin: 12px 0 28px;
    letter-spacing: 4px; line-height: 1.3;
}
.world-text p { color: var(--ink-2); font-size: 16px; line-height: 1.95; letter-spacing: .5px; }

/* === Classes === */
.classes {
    background:
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 100%);
}
.class-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
    max-width: 1280px; margin: 0 auto;
}
.class-card {
    position: relative; aspect-ratio: 3/5; overflow: hidden;
    border-radius: 10px; cursor: pointer;
    background: var(--bg-2); border: 1px solid var(--line);
    transition: transform .5s, box-shadow .5s, border-color .5s;
}
.class-card::before {
    content: ''; position: absolute; inset: 0;
    background-size: cover; background-position: center;
    transition: transform .8s, filter .5s;
    filter: brightness(.65) saturate(.85);
}
.class-card:hover { transform: translateY(-6px); border-color: rgba(216, 177, 90, .4); box-shadow: var(--shadow); }
.class-card:hover::before { transform: scale(1.08); filter: brightness(.85) saturate(1.1); }
.class-card .class-info {
    position: absolute; inset: 0; z-index: 2;
    background: linear-gradient(180deg, transparent 35%, rgba(7, 9, 13, .95) 100%);
    display: flex; flex-direction: column; justify-content: flex-end;
    padding: 28px;
}
.class-info .role { font-size: 11px; color: var(--gold); letter-spacing: 4px; text-transform: uppercase; }
.class-info h3 { font-family: var(--serif); font-size: 28px; margin: 8px 0 12px; letter-spacing: 3px; }
.class-info p { font-size: 13px; color: var(--ink-2); margin: 0; opacity: 0; max-height: 0; transition: opacity .4s, max-height .4s; }
.class-card:hover .class-info p { opacity: 1; max-height: 100px; }
.class-card[data-id="wxzs"]::before { background-image: url('../img/hero1.jpg'); }
.class-card[data-id="yjzs"]::before { background-image: url('../img/hero2.jpg'); }
.class-card[data-id="xdzs"]::before { background-image: url('../img/hero3.jpg'); }
.class-card[data-id="zwzs"]::before { background-image: url('../img/hero4.jpg'); }

/* === Features === */
.features {
    background:
        radial-gradient(ellipse at 50% 0%, rgba(216, 177, 90, .06), transparent 50%),
        var(--bg-1);
}
.feat-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
    max-width: 1280px; margin: 0 auto;
}
.feat {
    background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--line); border-radius: 10px;
    padding: 36px 30px; transition: transform .35s, border-color .35s;
    position: relative; overflow: hidden;
}
.feat::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transform: translateX(-100%); transition: transform .5s;
}
.feat:hover { transform: translateY(-4px); border-color: rgba(216, 177, 90, .3); }
.feat:hover::before { transform: translateX(0); }
.feat-num { font-family: var(--serif); font-size: 36px; color: var(--gold); opacity: .25; }
.feat h3 { font-family: var(--serif); font-size: 22px; margin: 8px 0 14px; letter-spacing: 2px; }
.feat p { color: var(--ink-2); font-size: 14px; line-height: 1.8; margin: 0; }

/* === Register & Server === */
.split {
    background: var(--bg-0);
    border-top: 1px solid var(--line);
}
.split-grid {
    max-width: 1180px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr; gap: 50px;
}
.card {
    background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--line); border-radius: 12px;
    padding: 44px 40px;
}
.card h3 { font-family: var(--serif); font-size: 26px; letter-spacing: 3px; margin: 0 0 8px; }
.card .clead { color: var(--ink-3); font-size: 13px; margin-bottom: 28px; letter-spacing: 1px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--ink-3); letter-spacing: 1px; margin-bottom: 6px; }
.field input {
    width: 100%; padding: 12px 14px; background: var(--bg-3); color: var(--ink-1);
    border: 1px solid var(--line); border-radius: 6px; outline: none;
    font-size: 14px; transition: border-color .25s;
}
.field input:focus { border-color: var(--gold); }
.btn-block { width: 100%; justify-content: center; }
.tip { font-size: 12px; color: var(--ink-4); margin-top: 14px; }
.soft-line { height: 1px; background: var(--line); margin: 28px 0; }
.profile-box {
    margin-top: 16px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.profile-box div {
    display: flex; justify-content: space-between; gap: 16px;
    padding: 10px 12px; border-bottom: 1px solid var(--line);
}
.profile-box div:last-child { border-bottom: 0; }
.profile-box span { color: var(--ink-3); font-size: 12px; }
.profile-box b { color: var(--ink-1); font-weight: 500; text-align: right; }

.srv-row { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.srv-row:last-child { border-bottom: 0; }
.srv-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--jade); box-shadow: 0 0 12px var(--jade); }
.srv-dot.warn { background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.srv-dot.err  { background: var(--crimson); box-shadow: 0 0 12px var(--crimson); }
.srv-name { font-family: var(--serif); flex: 1; letter-spacing: 2px; }
.srv-status { font-size: 12px; color: var(--ink-3); letter-spacing: 1px; }

/* === Download CTA === */
.cta {
    position: relative; padding: 140px 24px;
    background:
        linear-gradient(180deg, rgba(7, 9, 13, .8), rgba(7, 9, 13, .95)),
        url('../img/hero5.jpg') center/cover;
    text-align: center;
}
.cta h2 {
    font-family: var(--serif); font-size: clamp(36px, 5vw, 64px);
    margin: 0 0 18px; letter-spacing: 5px;
}
.cta p { font-size: 15px; color: var(--ink-2); margin-bottom: 36px; }
.cta .patch-info { margin-top: -18px; color: var(--gold-soft); }
.cta-actions { display: flex; gap: 18px; justify-content: center; }

/* === Flash === */
.flash {
    margin: 90px auto 0; max-width: 720px;
    padding: 14px 22px; border-radius: 8px; font-size: 14px;
    border: 1px solid;
}
.flash-success { background: rgba(78, 197, 154, .08); border-color: rgba(78, 197, 154, .35); color: var(--jade); }
.flash-error   { background: rgba(193, 75, 75, .08);  border-color: rgba(193, 75, 75, .35);  color: #ff7a7a; }
.flash-info    { background: rgba(216, 177, 90, .08); border-color: rgba(216, 177, 90, .35); color: var(--gold-soft); }

/* === Footer === */
.footer {
    background: #050608; border-top: 1px solid var(--line);
    padding: 60px 24px 32px; color: var(--ink-3); font-size: 13px;
}
.foot-grid {
    max-width: 1280px; margin: 0 auto;
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 44px;
}
.foot-brand { font-family: var(--serif); }
.foot-brand .big {
    font-size: 22px; letter-spacing: 4px; color: var(--ink-1);
    display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
}
.foot-brand p { color: var(--ink-3); line-height: 1.7; max-width: 360px; }
.foot-col h5 { color: var(--ink-1); letter-spacing: 2px; margin: 0 0 16px; font-size: 13px; }
.foot-col a { display: block; color: var(--ink-3); padding: 5px 0; }
.foot-bottom {
    max-width: 1280px; margin: 40px auto 0; padding-top: 24px;
    border-top: 1px solid var(--line);
    display: flex; justify-content: space-between; align-items: center;
    color: var(--ink-4); font-size: 12px; letter-spacing: 1px;
    flex-wrap: wrap; gap: 12px;
}
.foot-tags { display: flex; gap: 12px; }
.foot-tags span { padding: 3px 10px; border: 1px solid var(--line); border-radius: 4px; }

/* === Responsive === */
@media (max-width: 1100px) {
    .navbar { padding: 14px 20px; }
    .main-nav { gap: 22px; }
    .class-grid { grid-template-columns: repeat(2, 1fr); }
    .feat-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-row { grid-template-columns: repeat(3, 1fr); }
    .stat:nth-child(3n) { border-right: 0; }
    .world-grid { grid-template-columns: 1fr; gap: 40px; }
    .split-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
    .navbar { padding: 12px 16px; }
    .main-nav { display: none; position: fixed; top: 70px; left: 0; right: 0;
        background: var(--bg-0); border-bottom: 1px solid var(--line);
        flex-direction: column; gap: 0; padding: 0;
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 16px 24px; border-bottom: 1px solid var(--line); }
    .nav-right .btn { display: none; }
    .hamburger { display: inline-flex; }
    section { padding: 80px 18px; }
    .stats-row { grid-template-columns: repeat(2, 1fr); padding: 22px 12px; }
    .stat { border: 0 !important; padding: 14px 6px; }
    .stat-v { font-size: 24px; }
    .class-grid { grid-template-columns: 1fr; }
    .feat-grid { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: 1fr; gap: 28px; }
    .foot-bottom { flex-direction: column; }
}

/* =============================================================
   News block (homepage)
   ============================================================= */
.news { padding: 100px 60px; background: var(--bg-1); }
.news-head { display: flex; justify-content: space-between; align-items: flex-end; max-width: 1280px; margin: 0 auto 36px; gap: 20px; flex-wrap: wrap; }
.news-cats { display: flex; gap: 6px; flex-wrap: wrap; }
.news-cats a { padding: 6px 16px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; color: var(--ink-3); letter-spacing: 1px; }
.news-cats a:hover { color: var(--gold); border-color: var(--gold); }
.news-cats a.active { background: var(--gold); color: #0a0c10; border-color: var(--gold); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1280px; margin: 0 auto; }
.news-card { display: block; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; transition: transform .35s, border-color .35s, box-shadow .35s; }
.news-card:hover { transform: translateY(-4px); border-color: var(--gold); box-shadow: 0 20px 40px -16px rgba(0,0,0,.6); color: inherit; }
.news-card-img { aspect-ratio: 16/9; background: var(--bg-3) center/cover; position: relative; }
.news-card-img::after { content:''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.6) 100%); }
.news-card-cat { position: absolute; top: 12px; left: 12px; padding: 3px 10px; background: rgba(216,177,90,.92); color: #0a0c10; font-size: 11px; letter-spacing: 1px; border-radius: 3px; font-weight: 600; z-index: 1; }
.news-card-body { padding: 18px 20px 22px; }
.news-card h3 { font-size: 16px; margin: 0 0 8px; line-height: 1.45; color: var(--ink-1); }
.news-card-meta { color: var(--ink-3); font-size: 12px; display: flex; justify-content: space-between; }
.news-empty { text-align: center; color: var(--ink-3); padding: 40px 0; }
@media (max-width: 900px) { .news-grid { grid-template-columns: 1fr 1fr; } .news { padding: 80px 20px; } }
@media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; } }

/* News detail page */
.news-detail { max-width: 880px; margin: 0 auto; padding: 140px 24px 80px; }
.news-detail .crumb { color: var(--ink-3); font-size: 12px; letter-spacing: 1px; margin-bottom: 14px; }
.news-detail h1 { font-size: 32px; line-height: 1.3; margin: 0 0 16px; font-family: var(--serif); }
.news-detail .meta { color: var(--ink-3); font-size: 13px; margin-bottom: 30px; display: flex; gap: 16px; flex-wrap: wrap; }
.news-detail .cover { width: 100%; border-radius: 8px; margin-bottom: 30px; }
.news-detail .body { font-size: 16px; line-height: 1.85; color: var(--ink-2); }
.news-detail .body img { border-radius: 6px; margin: 18px 0; }
.news-detail .body h2, .news-detail .body h3 { color: var(--ink-1); margin: 32px 0 12px; }
.news-detail .body p { margin: 0 0 18px; }

/* =============================================================
   Theme toggle button
   ============================================================= */
.theme-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 50%;
    background: transparent; border: 1px solid var(--line);
    color: var(--ink-2); font-size: 14px; transition: .25s;
}
.theme-toggle:hover { color: var(--gold); border-color: var(--gold); }

/* =============================================================
   LIGHT THEME — body.theme-light 覆盖变量
   ============================================================= */
body.theme-light {
    --bg-0: #f4f1e8;
    --bg-1: #ffffff;
    --bg-2: #faf7ef;
    --bg-3: #ede7d6;
    --line: rgba(0, 0, 0, 0.10);
    --line-strong: rgba(0, 0, 0, 0.18);
    --ink-1: #1a1c20;
    --ink-2: #3a3f48;
    --ink-3: #6f7785;
    --ink-4: #9ba0ac;
    --gold: #b58a32;
    --gold-soft: #d8b15a;
    --shadow: 0 30px 60px -20px rgba(60, 50, 30, .25);
}
body.theme-light .navbar {
    background: linear-gradient(180deg, rgba(255, 252, 245, .92) 0%, rgba(255, 252, 245, 0) 100%);
}
body.theme-light .navbar.scrolled {
    background: rgba(255, 252, 245, .94);
    border-bottom-color: var(--line);
}
body.theme-light .brand-mark { color: #fff; box-shadow: 0 0 16px rgba(181,138,50,.35); }
body.theme-light .brand-text strong { color: var(--ink-1); }
body.theme-light .hero-slide { filter: brightness(.85) saturate(1.05); }
body.theme-light .hero-content { color: #fff; text-shadow: 0 2px 24px rgba(0,0,0,.5); }
body.theme-light .btn-primary { color: #fff; }
body.theme-light .stat-v { color: var(--gold); }
body.theme-light .stats { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
body.theme-light .world { background: var(--bg-1); }
body.theme-light .features { background: var(--bg-2); }
body.theme-light .news { background: var(--bg-2); }
body.theme-light .cta { background: linear-gradient(135deg, var(--bg-3), var(--bg-2)); color: var(--ink-1); }
body.theme-light .footer { background: var(--bg-3); color: var(--ink-2); }
body.theme-light .card { background: #fff; border-color: var(--line); }
body.theme-light .feat { background: #fff; border-color: var(--line); }
body.theme-light .news-card { background: #fff; }
body.theme-light input, body.theme-light textarea, body.theme-light select {
    background: #fff; color: var(--ink-1); border-color: var(--line-strong);
}

/* =============================================================
   Image quality: higher rendering quality for hero / world / class
   ============================================================= */
.hero-slide, .world-card, .class-card, .news-card-img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transform: translateZ(0);
    backface-visibility: hidden;
    will-change: transform;
}