:root {
    --bg: #12130f;
    --bg-soft: #1b1c16;
    --panel: #20231a;
    --panel-strong: #292714;
    --text: #fffaf0;
    --muted: #c9c1ae;
    --line: rgba(255, 250, 240, 0.14);
    --gold: #f4b84a;
    --gold-deep: #a6691b;
    --teal: #16c5a4;
    --coral: #e65b3d;
    --green: #78c956;
    --shadow: rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--text);
    background: var(--bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ── 公告滚动条 ── */
.notice-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 36px;
    padding: 0 16px;
    background: #1c1a0f;
    border-bottom: 1px solid rgba(244, 184, 74, 0.22);
    font-size: 13px;
    color: var(--muted);
    overflow: hidden;
}

.notice-icon { flex-shrink: 0; font-size: 15px; }

.notice-track {
    flex: 1;
    overflow: hidden;
    position: relative;
    height: 100%;
}

.notice-inner {
    display: flex;
    align-items: center;
    gap: 48px;
    white-space: nowrap;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    will-change: transform;
}

.notice-inner span {
    flex-shrink: 0;
}

/* ── Header ── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(18, 19, 15, 0.9);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}

.header-inner,
.hero-inner,
.section,
.footer-inner {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { width: 44px; height: 44px; object-fit: contain; }
.brand-name { font-size: 18px; font-weight: 800; white-space: nowrap; }

.site-nav {
    display: flex;
    align-items: center;
    gap: 22px;
    color: var(--muted);
    font-size: 14px;
}

.site-nav a { position: relative; padding: 8px 0; }

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 160ms ease;
}

.site-nav a:hover,
.site-nav a.is-active { color: var(--text); }

.site-nav a:hover::after,
.site-nav a.is-active::after { transform: scaleX(1); }

.header-action,
.primary-btn,
.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 6px;
    font-weight: 800;
    line-height: 1;
    border: 1px solid transparent;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
    cursor: pointer;
}

.header-action,
.primary-btn {
    color: #1c1607;
    background: var(--gold);
    box-shadow: 0 12px 28px rgba(244, 184, 74, 0.22);
}

.secondary-btn {
    color: var(--text);
    background: rgba(255, 250, 240, 0.1);
    border-color: var(--line);
}

.header-action:hover,
.primary-btn:hover,
.secondary-btn:hover { transform: translateY(-2px); }

.disabled-btn,
.disabled-btn:hover { cursor: default; opacity: 0.68; transform: none; }

.btn-icon {
    display: inline-grid;
    place-items: center;
    width: 22px; height: 22px;
    border-radius: 6px;
    background: rgba(18, 19, 15, 0.16);
    font-size: 16px;
    line-height: 1;
}

.secondary-btn .btn-icon { background: rgba(244, 184, 74, 0.18); color: var(--gold); }

/* ── Hero ── */
.hero {
    position: relative;
    min-height: 76svh;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background-color: #17170f;
    background-image:
        url("../images/games/symbol-8.png"),
        url("../images/games/symbol-9.png");
    background-repeat: no-repeat;
    background-size: 136px auto, 118px auto;
    background-position: 7% 18%, 91% 78%;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(18,19,15,0.96) 0%, rgba(18,19,15,0.78) 42%, rgba(18,19,15,0.2) 100%),
        linear-gradient(180deg, rgba(244,184,74,0.18) 0%, rgba(18,19,15,0) 34%, rgba(22,197,164,0.12) 100%);
}

.hero::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 96px;
    background: linear-gradient(180deg, rgba(18,19,15,0), rgba(18,19,15,0.82));
}

.hero-inner {
    position: relative;
    z-index: 2;
    min-height: 76svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 54px 0 48px;
}

.eyebrow,
.section-kicker,
.game-code {
    margin: 0;
    color: var(--gold);
    font-size: 13px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.hero h1 {
    margin: 14px 0 18px;
    font-size: 72px;
    line-height: 1.02;
}

.hero-copy {
    max-width: 620px;
    margin: 0;
    color: var(--muted);
    font-size: 19px;
    line-height: 1.85;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 34px 0 0;
}

.hero-stats div {
    min-width: 118px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255,250,240,0.07);
}

.hero-stats dt {
    margin: 0;
    color: var(--text);
    font-size: 28px;
    font-weight: 900;
}

.hero-stats dd {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: 13px;
}

/* Hero scene */
.hero-scene {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.scene-symbol {
    position: absolute;
    filter: drop-shadow(0 26px 30px var(--shadow));
    animation: floatSymbol 5.8s ease-in-out infinite;
}

.symbol-a { width: 154px; top: 12%; right: 16%; }
.symbol-b { width: 150px; right: 29%; bottom: 16%; animation-delay: 700ms; }
.symbol-c { width: 130px; top: 47%; right: 7%; animation-delay: 1100ms; }
.symbol-d { width: 132px; right: 5%; top: 19%; animation-delay: 1600ms; }

@keyframes floatSymbol {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-14px); }
}

/* Slot reel in hero */
.reel-stack {
    position: absolute;
    right: 12%;
    top: 22%;
    width: 250px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 16px;
    border: 1px solid rgba(244,184,74,0.45);
    border-radius: 10px;
    background: rgba(24,20,11,0.82);
    box-shadow: 0 28px 60px var(--shadow);
    transform: rotate(-4deg);
    overflow: hidden;
}

.reel-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.reel-col span {
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    border-radius: 6px;
    background: rgba(255,250,240,0.08);
    border: 1px solid rgba(255,250,240,0.06);
}

.reel-col img {
    width: 80%;
    max-height: 64px;
    object-fit: contain;
}

.reel-spinning {
    animation: reelSpin 1.4s steps(3) infinite;
}

@keyframes reelSpin {
    0%   { transform: translateY(0); }
    100% { transform: translateY(-100%); }
}

.reel-win-line {
    position: absolute;
    left: 0; right: 0;
    top: 50%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    transform: translateY(-50%);
    animation: winLinePulse 2s ease-in-out infinite;
}

@keyframes winLinePulse {
    0%, 100% { opacity: 0.4; }
    50%       { opacity: 1; }
}

/* ── Section common ── */
.section { padding: 82px 0; }

.section-heading {
    display: grid;
    gap: 10px;
    max-width: 760px;
    margin-bottom: 34px;
}

.section-heading.compact { max-width: 680px; margin-bottom: 28px; }

.section-heading h2,
.download-layout h2,
.support-layout h2 {
    margin: 0;
    font-size: 40px;
    line-height: 1.18;
}

.section-heading p,
.download-copy,
.support-layout p,
.platform-copy p {
    margin: 0;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.8;
}

/* ── Games ── */
.games-section { padding-top: 58px; }

.game-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.game-card {
    display: grid;
    grid-template-rows: 128px auto;
    gap: 14px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    box-shadow: 0 20px 44px rgba(0,0,0,0.16);
    position: relative;
    --mx: 50%;
    --my: 50%;
    transition: border-color 200ms ease, transform 200ms ease;
}

.game-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(320px at var(--mx) var(--my), rgba(244,184,74,0.08), transparent 70%);
    opacity: 0;
    transition: opacity 200ms ease;
    pointer-events: none;
}

.game-card:hover { border-color: rgba(244,184,74,0.3); transform: translateY(-3px); }
.game-card:hover::before { opacity: 1; }

.game-card.featured {
    background: #28220f;
    border-color: rgba(244,184,74,0.36);
}

.game-card img {
    align-self: center;
    justify-self: center;
    width: 104px; height: 104px;
    object-fit: contain;
    filter: drop-shadow(0 12px 18px rgba(0,0,0,0.24));
}

.game-icon-placeholder {
    display: grid;
    place-items: center;
    width: 104px; height: 104px;
    margin: auto;
    border-radius: 18px;
    background: rgba(255,250,240,0.07);
    border: 1px solid var(--line);
}

.game-emoji { font-size: 52px; line-height: 1; }

.game-card h3 {
    margin: 6px 0 8px;
    font-size: 20px;
    line-height: 1.24;
}

.game-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.72; }

.game-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 10px 0 0;
    padding: 0;
    list-style: none;
}

.game-tags li {
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(255,250,240,0.08);
    border: 1px solid var(--line);
    font-size: 12px;
    color: var(--muted);
}

.game-card.featured .game-tags li {
    background: rgba(244,184,74,0.1);
    border-color: rgba(244,184,74,0.22);
    color: var(--gold);
}

/* ── Rooms ── */
.rooms-section {
    background: #181b15;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    width: 100%;
    max-width: none;
    padding-left: max(20px, calc((100% - 1180px) / 2));
    padding-right: max(20px, calc((100% - 1180px) / 2));
}

.rooms-section .section-heading { max-width: 860px; }

.rooms-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 12px;
    width: min(1180px, calc(100% - 0px));
    margin: 0 auto;
}

.room-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 22px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    text-align: center;
    transition: transform 160ms ease, border-color 160ms ease;
}

.room-card:hover { transform: translateY(-4px); }

.room-card.featured-room {
    background: linear-gradient(160deg, #2a1f05, #1e1808);
    border-color: rgba(244,184,74,0.5);
    box-shadow: 0 0 24px rgba(244,184,74,0.12);
}

.room-badge {
    font-size: 13px;
    font-weight: 900;
    color: var(--gold);
    letter-spacing: 0.04em;
}

.room-chips { font-size: 22px; line-height: 1; }

.room-entry {
    margin: 0;
    font-size: 13px;
    font-weight: 800;
    color: var(--teal);
}

.room-desc {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--muted);
    line-height: 1.6;
}

/* ── How To Play ── */
.howto-section { background: var(--bg); }

.howto-steps {
    display: flex;
    align-items: center;
    gap: 0;
    margin-bottom: 48px;
}

.step-card {
    flex: 1;
    padding: 28px 24px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
}

.step-num {
    font-size: 42px;
    font-weight: 900;
    color: rgba(244,184,74,0.22);
    line-height: 1;
    margin-bottom: 14px;
}

.step-card h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

.step-card p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.75;
}

.step-arrow {
    flex-shrink: 0;
    padding: 0 18px;
    font-size: 24px;
    color: rgba(244,184,74,0.4);
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}

.rule-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}

.rule-icon { font-size: 24px; }
.rule-item strong { font-size: 15px; color: var(--text); }
.rule-item span { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ── Platform ── */
.platform-section {
    width: 100%;
    max-width: none;
    padding-left: max(20px, calc((100% - 1180px) / 2));
    padding-right: max(20px, calc((100% - 1180px) / 2));
    background: #181b15;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.platform-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 54px;
    align-items: center;
}

.feature-list {
    display: grid;
    gap: 0;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.feature-list strong { color: var(--text); font-size: 16px; }
.feature-list span { color: var(--muted); line-height: 1.75; font-size: 14px; }

.phone-shell {
    width: 100%;
    max-width: 380px;
    justify-self: end;
    padding: 16px;
    border: 1px solid rgba(244,184,74,0.32);
    border-radius: 10px;
    background: #242116;
    box-shadow: 0 24px 52px var(--shadow);
}

.phone-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 46px;
    padding: 0 14px;
    border-radius: 6px;
    color: #1d1708;
    background: var(--gold);
    font-weight: 900;
    font-size: 14px;
}

.online-dot { color: #1a6e1a; font-weight: 700; font-size: 12px; }

.slot-window {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    margin: 12px 0;
    padding: 10px;
    border-radius: 8px;
    background: #17130b;
}

.slot-window img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
    border-radius: 5px;
    background: rgba(255,250,240,0.07);
    animation: slotWiggle 3s ease-in-out infinite;
}

.slot-window img:nth-child(2) { animation-delay: 0.3s; }
.slot-window img:nth-child(3) { animation-delay: 0.6s; }
.slot-window img:nth-child(4) { animation-delay: 0.9s; }
.slot-window img:nth-child(5) { animation-delay: 1.2s; }
.slot-window img:nth-child(6) { animation-delay: 1.5s; }

@keyframes slotWiggle {
    0%, 90%, 100% { transform: scale(1); }
    95% { transform: scale(1.06); }
}

.phone-games {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.phone-games span {
    display: grid;
    place-items: center;
    min-height: 80px;
    border-radius: 8px;
    background: #1b2419;
    border: 1px solid rgba(120,201,86,0.22);
}

.phone-games img { width: 60px; height: 60px; object-fit: contain; }

.phone-footer-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: 10px;
    border-top: 1px solid rgba(255,250,240,0.1);
    padding-top: 10px;
    font-size: 11px;
    color: var(--muted);
    text-align: center;
}

.phone-footer-bar span:first-child { color: var(--gold); font-weight: 800; }

/* ── Download ── */
.download-section { padding-bottom: 70px; }

.download-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 36px;
    align-items: center;
    padding: 36px;
    border: 1px solid rgba(22,197,164,0.28);
    border-radius: 10px;
    background: #17231f;
}

.download-layout h2 { margin: 8px 0 12px; }

.download-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
}

.text-link { color: var(--teal); font-weight: 800; padding: 10px 0; }
.text-link:hover { color: var(--gold); }

.download-tips {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 20px;
}

.tip-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
}

.tip-icon { color: var(--teal); font-weight: 900; }

.qr-block {
    display: grid;
    justify-items: center;
    gap: 8px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255,250,240,0.06);
}

.qr-block img {
    width: 150px; height: 150px;
    border-radius: 6px;
    background: #ffffff;
}

.qr-block p { margin: 0; color: var(--muted); font-size: 13px; font-weight: 700; }
.qr-sub { font-size: 11px !important; font-weight: 400 !important; }

/* ── FAQ ── */
.faq-list {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    max-width: 860px;
}

.faq-item {
    background: var(--panel);
}

.faq-item summary {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: color 160ms ease;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: "+";
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255,250,240,0.08);
    font-size: 18px;
    color: var(--gold);
    transition: transform 200ms ease;
}

.faq-item[open] summary::after {
    content: "−";
    transform: rotate(180deg);
}

.faq-item summary:hover { color: var(--gold); }

.faq-item p {
    margin: 0;
    padding: 0 24px 20px;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.8;
}

/* ── Support ── */
.support-section {
    width: 100%;
    max-width: none;
    padding-left: max(20px, calc((100% - 1180px) / 2));
    padding-right: max(20px, calc((100% - 1180px) / 2));
    background: #1f1b13;
}

.support-layout {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 44px;
    align-items: start;
}

.support-layout h2 { margin: 8px 0 12px; }

.support-items {
    display: grid;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.support-items div {
    display: grid;
    grid-template-columns: 90px minmax(0, 1fr);
    gap: 16px;
    padding: 20px;
    background: #181813;
}

.support-items strong { color: var(--gold); font-size: 14px; }
.support-items span { color: var(--muted); line-height: 1.7; font-size: 14px; }

/* ── Footer ── */
.site-footer {
    border-top: 1px solid var(--line);
    background: #10110e;
}

.footer-inner {
    min-height: 92px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
    color: var(--muted);
    padding: 20px 0;
}

.footer-brand .brand-mark { width: 34px; height: 34px; }
.footer-inner p { margin: 0; font-size: 13px; }
.footer-copy { color: rgba(201,193,174,0.6); }

.footer-nav {
    display: flex;
    gap: 20px;
    font-size: 13px;
}

.footer-nav a:hover { color: var(--gold); }

/* ── Responsive ── */
@media (max-width: 1100px) {
    .rooms-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 980px) {
    .site-nav { gap: 14px; font-size: 13px; }
    .hero h1 { font-size: 56px; }
    .hero-copy { font-size: 17px; }
    .symbol-a { right: 9%; }
    .symbol-b { right: 18%; }
    .reel-stack { right: 5%; width: 210px; }
    .game-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .platform-layout, .support-layout { grid-template-columns: 1fr; }
    .phone-shell { justify-self: start; }
    .rules-grid { grid-template-columns: repeat(2, 1fr); }
    .howto-steps { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); padding: 8px 0; }
}

@media (max-width: 720px) {
    .header-inner,
    .hero-inner,
    .section,
    .footer-inner { width: min(100% - 28px, 1180px); }

    .header-inner { min-height: 64px; gap: 12px; }
    .brand-mark { width: 38px; height: 38px; }
    .brand-name { font-size: 17px; }
    .site-nav { display: none; }
    .header-action { min-height: 38px; padding: 0 12px; font-size: 14px; }

    .hero { min-height: 68svh; background-size: 82px auto, 78px auto; background-position: 4% 16%, 96% 84%; }
    .hero-inner { min-height: 68svh; padding: 34px 0 32px; }
    .hero h1 { margin: 10px 0 14px; font-size: 40px; }
    .hero-copy { font-size: 15px; line-height: 1.72; }
    .hero-actions { margin-top: 22px; }
    .primary-btn, .secondary-btn { min-height: 42px; padding: 0 14px; font-size: 14px; }
    .hero-stats { gap: 8px; margin-top: 22px; }
    .hero-stats div { min-width: 88px; padding: 10px 12px; }
    .hero-stats dt { font-size: 22px; }
    .hero-stats dd { font-size: 12px; }
    .scene-symbol { opacity: 0.45; }
    .symbol-a { width: 86px; top: 11%; right: 8%; }
    .symbol-b, .symbol-d { display: none; }
    .symbol-c { width: 78px; top: 53%; right: 2%; }
    .reel-stack { right: -40px; top: 22%; width: 155px; gap: 6px; padding: 8px; opacity: 0.7; }

    .section { padding: 52px 0; }
    .section-heading h2, .download-layout h2, .support-layout h2 { font-size: 28px; }
    .section-heading p, .download-copy, .support-layout p, .platform-copy p { font-size: 15px; }
    .games-section { padding-top: 38px; }
    .game-grid { grid-template-columns: 1fr; }
    .game-card { grid-template-columns: 90px minmax(0, 1fr); grid-template-rows: auto; align-items: center; padding: 14px; }
    .game-card img, .game-icon-placeholder { width: 74px; height: 74px; }
    .game-emoji { font-size: 36px; }
    .game-card h3 { font-size: 18px; }

    .rooms-section { padding-left: 14px; padding-right: 14px; }
    .rooms-grid { grid-template-columns: repeat(2, 1fr); }
    .room-card.featured-room { grid-column: 1 / -1; }

    .howto-steps { gap: 12px; }
    .step-arrow { padding: 0; font-size: 20px; }
    .rules-grid { grid-template-columns: 1fr; }

    .platform-section, .support-section { padding-left: 14px; padding-right: 14px; }
    .feature-list li { grid-template-columns: 1fr; gap: 8px; padding: 16px 0; }
    .phone-shell { max-width: 100%; }
    .phone-games span { min-height: 68px; }
    .phone-games img { width: 50px; height: 50px; }

    .download-layout { grid-template-columns: 1fr; padding: 22px; }
    .qr-block { justify-self: start; }

    .support-items div { grid-template-columns: 1fr; gap: 6px; padding: 16px; }

    .footer-inner { min-height: auto; flex-direction: column; align-items: flex-start; }
    .footer-nav { flex-wrap: wrap; gap: 14px; }
}

/* ── 入场动画 ── */
.fade-in {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 500ms ease var(--delay, 0ms), transform 500ms ease var(--delay, 0ms);
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
    }
}