:root {
    --bg: #050b13;
    --bg-soft: #08121f;
    --panel: rgba(12, 24, 38, 0.72);
    --panel-strong: rgba(16, 30, 46, 0.88);
    --line: rgba(162, 206, 255, 0.18);
    --line-strong: rgba(162, 206, 255, 0.32);
    --text: rgba(244, 249, 255, 0.96);
    --muted: rgba(207, 222, 238, 0.72);
    --faint: rgba(207, 222, 238, 0.52);
    --cyan: #74e6ff;
    --mint: #76f0bd;
    --coral: #ff9a7a;
    --amber: #ffd36b;
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-snap-type: y mandatory;
    scroll-padding-top: 0;
    background: var(--bg);
}

html.is-programmatic-scroll {
    scroll-behavior: auto;
    scroll-snap-type: none;
}

body {
    margin: 0;
    overflow-x: hidden;
    overscroll-behavior-y: contain;
    background: #03070d;
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

.site-aurora-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 1;
    filter: blur(20px) saturate(1.85) contrast(1.12) hue-rotate(0deg);
    background:
        radial-gradient(ellipse at 72% 34%, rgba(116, 230, 255, 0.5), transparent 34%),
        radial-gradient(ellipse at 80% 72%, rgba(255, 211, 107, 0.28), transparent 30%),
        linear-gradient(110deg, transparent 2%, rgba(116, 230, 255, 0.46) 28%, rgba(116, 230, 255, 0.14) 42%, transparent 58%),
        linear-gradient(58deg, transparent 22%, rgba(118, 240, 189, 0.36) 50%, rgba(118, 240, 189, 0.13) 64%, transparent 80%),
        linear-gradient(155deg, transparent 26%, rgba(255, 118, 196, 0.28) 56%, rgba(255, 154, 122, 0.16) 70%, transparent 88%),
        linear-gradient(145deg, #07111d, #02050a 72%);
    mix-blend-mode: screen;
    transform: translate3d(-1%, 0, 0) scale(1.06);
    animation: oasisAuroraChaos 16s ease-in-out infinite alternate;
}

.site-aurora-bg::before,
.site-aurora-bg::after {
    content: "";
    position: absolute;
    inset: -6%;
    pointer-events: none;
}

.site-aurora-bg::before {
    opacity: 0.48;
    background:
        linear-gradient(rgba(190, 236, 255, 0.28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(190, 236, 255, 0.28) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(90deg, transparent 0%, #000 34%, #000 100%);
    transform: perspective(900px) rotateX(58deg) translate3d(5%, 16%, 0) scale(1.28);
    transform-origin: 50% 100%;
    animation: oasisLatticeDrift 22s linear infinite;
}

.site-aurora-bg::after {
    opacity: 0.7;
    background:
        radial-gradient(circle at center, rgba(116, 230, 255, 0.72) 0 38%, transparent 40%),
        radial-gradient(circle at center, rgba(118, 240, 189, 0.62) 0 36%, transparent 38%),
        radial-gradient(circle at center, rgba(255, 255, 255, 0.42) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 118, 196, 0.42) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 211, 107, 0.48) 0 35%, transparent 37%),
        radial-gradient(circle at center, rgba(116, 230, 255, 0.52) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(118, 240, 189, 0.46) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 255, 255, 0.34) 0 32%, transparent 34%),
        radial-gradient(circle at center, rgba(255, 118, 196, 0.34) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 211, 107, 0.36) 0 35%, transparent 37%),
        radial-gradient(circle at center, rgba(116, 230, 255, 0.36) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(118, 240, 189, 0.34) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 255, 255, 0.28) 0 32%, transparent 34%),
        radial-gradient(circle at center, rgba(255, 118, 196, 0.3) 0 34%, transparent 36%),
        radial-gradient(circle at center, rgba(255, 211, 107, 0.32) 0 35%, transparent 37%),
        radial-gradient(circle at center, rgba(116, 230, 255, 0.32) 0 34%, transparent 36%);
    background-size:
        16px 16px, 14px 14px, 12px 12px, 18px 18px,
        15px 15px, 20px 20px, 13px 13px, 11px 11px,
        17px 17px, 12px 12px, 14px 14px, 18px 18px,
        10px 10px, 16px 16px, 12px 12px, 15px 15px;
    background-position:
        72% 28%, 86% 58%, 62% 72%, 44% 40%,
        78% 44%, 92% 28%, 54% 56%, 66% 36%,
        84% 76%, 50% 82%, 38% 64%, 94% 68%,
        58% 24%, 70% 86%, 48% 30%, 88% 42%;
    background-repeat: no-repeat;
    mix-blend-mode: screen;
    clip-path: polygon(30% 4%, 100% 0, 100% 100%, 18% 100%);
    filter: blur(0.2px) drop-shadow(0 0 14px rgba(116, 230, 255, 0.46));
    image-rendering: pixelated;
    animation: oasisLatticePulse 5.8s ease-in-out infinite alternate;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 72px;
    padding: 0 clamp(20px, 4vw, 64px);
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.62), transparent);
}

main,
.site-footer {
    position: relative;
    z-index: 1;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 650;
    letter-spacing: 0.08em;
    white-space: nowrap;
    margin: 0 auto;
    text-transform: uppercase;
}

.brand-mark {
    width: 20px;
    height: 20px;
    border: 1px solid rgba(116, 230, 255, 0.8);
    border-radius: 50%;
    background:
        radial-gradient(circle at 50% 50%, rgba(118, 240, 189, 0.95) 0 22%, transparent 23%),
        radial-gradient(circle at 50% 50%, rgba(116, 230, 255, 0.35), transparent 62%);
    box-shadow: 0 0 18px rgba(116, 230, 255, 0.45);
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(14px, 2vw, 30px);
    color: var(--muted);
    font-size: 14px;
}

.site-nav a,
.site-footer nav a {
    transition: color 160ms ease;
}

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

.nav-action,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 168px;
    min-height: 48px;
    padding: 0 24px;
    border-radius: 0;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

.nav-action,
.button-secondary {
    border: 2px solid rgba(255, 255, 255, 0.86);
    color: var(--text);
    background: transparent;
}

.button-primary {
    border: 2px solid rgba(255, 255, 255, 0.92);
    color: #050b13;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: none;
}

.hero-section {
    position: relative;
    height: 100svh;
    min-height: 620px;
    overflow: hidden;
    isolation: isolate;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: flex;
    align-items: flex-end;
    padding: 132px clamp(24px, 5.4vw, 96px) clamp(58px, 9vh, 118px);
    background: #040915;
}

.hero-backdrop,
.hero-vignette {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-backdrop {
    z-index: 1;
    background-image: url("/prototype/assets/hero/hero-city-master.png");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.hero-backdrop::after {
    content: none;
}

.hero-vignette {
    z-index: 2;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.36) 26%, rgba(0, 0, 0, 0.02) 58%, rgba(0, 0, 0, 0.38) 100%),
        linear-gradient(180deg, rgba(0, 0, 0, 0.18) 0%, transparent 30%, rgba(0, 0, 0, 0.72) 100%);
}

.hero-content {
    position: relative;
    z-index: 4;
    max-width: 760px;
}

.hero-kicker,
.section-kicker {
    margin: 0 0 18px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero-title {
    margin: 0;
    max-width: 760px;
    color: var(--text);
    font-size: clamp(42px, 6.1vw, 82px);
    font-weight: 820;
    line-height: 0.98;
    letter-spacing: 0;
    text-transform: uppercase;
    text-shadow: 0 3px 22px rgba(0, 0, 0, 0.46);
    animation: heroTitleIn 1000ms ease 240ms both;
}

.hero-title span {
    white-space: nowrap;
}

.hero-copy {
    max-width: 720px;
    margin: 22px 0 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: clamp(15px, 1.2vw, 18px);
    line-height: 1.65;
}

.hero-line {
    margin: 20px 0 0;
    color: rgba(255, 255, 255, 0.86);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.hero-scan {
    position: absolute;
    right: clamp(20px, 5vw, 82px);
    bottom: clamp(58px, 9vh, 118px);
    z-index: 5;
    width: 192px;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 0;
    background: rgba(0, 0, 0, 0.54);
}

.hero-scan p,
.experience-qr p {
    margin: 10px 0 4px;
    font-size: 13px;
    color: var(--text);
}

.hero-scan small,
.experience-qr small {
    color: var(--faint);
    font-size: 12px;
}

.qr-placeholder {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 5px;
    width: 100%;
    aspect-ratio: 1;
    padding: 12px;
    border-radius: 6px;
    background:
        linear-gradient(135deg, rgba(244, 249, 255, 0.96), rgba(212, 232, 246, 0.92));
}

.qr-placeholder::before {
    content: "";
    grid-column: 1 / -1;
    grid-row: 1 / -1;
    background:
        linear-gradient(90deg, #08121f 0 16%, transparent 16% 28%, #08121f 28% 40%, transparent 40% 60%, #08121f 60% 72%, transparent 72% 84%, #08121f 84%),
        linear-gradient(0deg, #08121f 0 12%, transparent 12% 24%, #08121f 24% 38%, transparent 38% 58%, #08121f 58% 70%, transparent 70% 84%, #08121f 84%);
    opacity: 0.86;
    mix-blend-mode: multiply;
}

.qr-placeholder span {
    position: absolute;
    width: 28%;
    aspect-ratio: 1;
    border: 7px solid #08121f;
}

.qr-placeholder span:nth-child(1) {
    top: 12px;
    left: 12px;
}

.qr-placeholder span:nth-child(2) {
    top: 12px;
    right: 12px;
}

.qr-placeholder span:nth-child(3) {
    bottom: 12px;
    left: 12px;
}

.live-tickers {
    position: absolute;
    left: clamp(20px, 4vw, 72px);
    right: clamp(20px, 4vw, 72px);
    bottom: 18px;
    z-index: 5;
    display: flex;
    gap: 10px;
    overflow: hidden;
    color: rgba(230, 240, 250, 0.78);
}

.live-tickers span {
    flex: 0 0 auto;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    background: rgba(5, 12, 20, 0.56);
    font-size: 13px;
}

.section {
    padding: clamp(80px, 10vh, 132px) clamp(24px, 5.4vw, 96px);
}

.mission-section {
    position: relative;
    height: 100svh;
    min-height: 620px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    isolation: isolate;
    scroll-snap-align: start;
    scroll-snap-stop: always;
    background: transparent;
}

.mission-section::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.76), rgba(0, 0, 0, 0.18) 58%, rgba(0, 0, 0, 0.5)),
        linear-gradient(180deg, rgba(0, 0, 0, 0.14), transparent 32%, rgba(0, 0, 0, 0.84));
}

.mission-section::after {
    content: none;
}

.mission-section > * {
    position: relative;
    z-index: 2;
}

.section-heading {
    max-width: 700px;
    margin: 0;
    text-align: left;
}

.section-heading.compact {
    max-width: 760px;
}

.section h2,
.experience-copy h2 {
    margin: 0;
    color: var(--text);
    font-size: clamp(34px, 5.1vw, 76px);
    line-height: 1;
    font-weight: 820;
    letter-spacing: 0;
    text-transform: uppercase;
}

.section-heading p:not(.section-kicker),
.echo-copy p,
.heat-panel > div p,
.experience-copy p,
.site-footer p {
    color: rgba(255, 255, 255, 0.78);
    font-size: 15px;
    line-height: 1.7;
}

.feature-grid,
.scene-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    max-width: 1180px;
    margin: 0;
}

.value-grid {
    position: absolute;
    right: clamp(24px, 5.4vw, 96px);
    bottom: clamp(80px, 10vh, 132px);
    width: min(45vw, 640px);
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-demo {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-content: end;
    gap: 12px;
    width: min(38vw, 560px);
    height: auto;
    max-height: none;
}

.phone-demo {
    position: relative;
    justify-self: center;
    width: min(100%, 420px);
    height: auto;
    aspect-ratio: 390 / 760;
    min-height: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 30px;
    background: #f5f5f7;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

.phone-status {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    z-index: 12;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 42px;
    padding: 0 20px;
    color: #1c1c1e;
    font-size: 11px;
    font-weight: 800;
}

.mini-screen {
    position: absolute;
    inset: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(12px) scale(0.985);
    transition: opacity 420ms ease, transform 420ms ease;
}

.product-demo[data-demo-phase="discover"] .discover-screen,
.product-demo[data-demo-phase="echo"] .poi-screen,
.product-demo[data-demo-phase="heat"] .poi-screen {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.mock-map {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(30deg, transparent 0 44%, rgba(255, 255, 255, 0.72) 44% 48%, transparent 48%),
        linear-gradient(110deg, transparent 0 52%, rgba(255, 255, 255, 0.68) 52% 56%, transparent 56%),
        linear-gradient(145deg, #dcefe3 0 22%, #e7eef3 22% 48%, #d7ebe0 48% 74%, #eef0ea 74%);
}

.mock-map::before,
.mock-map::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(88deg, transparent 14%, rgba(123, 141, 160, 0.34) 14.4%, transparent 15.2%),
        linear-gradient(3deg, transparent 26%, rgba(123, 141, 160, 0.32) 26.4%, transparent 27.2%),
        linear-gradient(130deg, transparent 58%, rgba(123, 141, 160, 0.28) 58.4%, transparent 59.2%);
}

.mock-map::after {
    opacity: 0.5;
    background-size: 46px 46px;
    background-image:
        linear-gradient(rgba(129, 151, 168, 0.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(129, 151, 168, 0.18) 1px, transparent 1px);
}

.map-road {
    position: absolute;
    height: 5px;
    border-radius: 999px;
    background: rgba(101, 124, 145, 0.48);
}

.road-a { left: -8%; top: 45%; width: 118%; transform: rotate(-12deg); }
.road-b { left: 18%; top: 30%; width: 88%; transform: rotate(31deg); }
.road-c { left: -10%; top: 68%; width: 92%; transform: rotate(18deg); }

.map-park,
.map-water {
    position: absolute;
    border-radius: 48% 52% 44% 56%;
}

.map-park {
    left: 11%;
    top: 28%;
    width: 34%;
    height: 18%;
    background: rgba(140, 205, 164, 0.45);
}

.map-water {
    right: -8%;
    top: 16%;
    width: 32%;
    height: 22%;
    background: rgba(124, 196, 218, 0.34);
}

.map-pin {
    position: absolute;
    z-index: 3;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: #1a1a1e;
    border: 3px solid #fff;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.map-pin.selected {
    width: 22px;
    height: 22px;
    background: #ff9a5c;
    box-shadow: 0 0 0 10px rgba(255, 154, 92, 0.18), 0 12px 28px rgba(255, 154, 92, 0.38);
    animation: demoPinPulse 1.3s ease-in-out infinite;
}

.user-pin { left: 50%; top: 68%; background: #4f8cff; }
.live-pin { left: 46%; top: 58%; }
.pin-b { left: 63%; top: 50%; }
.pin-c { left: 28%; top: 74%; }

.mini-search {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 58px;
    z-index: 4;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    height: 44px;
    padding: 2px 2px 2px 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.78);
    border: 1px solid rgba(255, 255, 255, 0.42);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(18px);
}

.mini-search .search-input {
    flex: 1;
    height: 100%;
    background: none;
    border: none;
    outline: none;
    color: #1C1C1E;
    font-size: 12px;
    font-family: inherit;
}
.mini-search .search-input::placeholder {
    color: #8E8E93;
}

.btn-search-trigger {
    width: 40px;
    height: 40px;
    background: #1A1A1E;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}
.search-icon {
    position: relative;
    width: 18px;
    height: 18px;
}
.search-lens {
    position: absolute;
    top: 1px;
    left: 1px;
    width: 11px;
    height: 11px;
    border: 2px solid #FFFFFF;
    border-radius: 50%;
    box-sizing: border-box;
}
.search-handle {
    position: absolute;
    right: 1px;
    bottom: 2px;
    width: 8px;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transform: rotate(45deg);
    transform-origin: center;
}

.nearby-demo-sheet {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 144px;
    height: 240px;
    z-index: 5;
    overflow: hidden;
    border-radius: 24px;
    color: #1c1c1e;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
}

.demo-mode-bar {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    padding: 14px 20px 8px 20px;
    flex-shrink: 0;
}

.demo-mode-bar .sheet-mode-tab {
    font-size: 13px;
    color: #8E8E93;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 12px;
    background: rgba(142, 142, 147, 0.08);
}
.demo-mode-bar .sheet-mode-tab.active {
    color: #FFFFFF;
    background: #1A1A1E;
    font-weight: 600;
}

.demo-mode-bar .sheet-info {
    margin-left: auto;
    font-size: 11px;
    color: #8E8E93;
}

.poi-list-group {
    padding: 0 20px 12px;
}

.poi-item-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid rgba(229, 229, 234, 0.5);
}
.poi-item-row:last-child { border-bottom: none; }

.poi-item-row.selected {
    background: rgba(255, 154, 92, 0.08);
    margin: 0 -12px;
    padding: 14px 12px;
    border-radius: 10px;
    border-bottom: none;
}

.poi-row-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.poi-row-name {
    font-size: 12px;
    font-weight: 700;
    color: #1C1C1E;
    margin-bottom: 3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.poi-row-meta {
    font-size: 10px;
    color: #8E8E93;
}

.heat-badge-inline {
    background: #FFFFFF;
    padding: 4px 10px;
    border-radius: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.03);
    flex-shrink: 0;
    margin-left: 8px;
}

.heat-badge-text {
    font-size: 11px;
    color: #FF9A5C;
    font-weight: 600;
}

.distance-tag {
    font-size: 9px;
    color: #8E8E93;
    background: rgba(142, 142, 147, 0.1);
    padding: 2px 6px;
    border-radius: 8px;
    margin-left: 6px;
    white-space: nowrap;
    flex-shrink: 0;
}

.sheet-drag-area {
    flex-shrink: 0;
    padding: 8px 0 12px 0;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 0 0 24px 24px;
}

.sheet-drag-handle {
    display: block;
    width: 32px;
    height: 3px;
    margin: 0 auto;
    border-radius: 2px;
    background: rgba(142, 142, 147, 0.3);
}

.poi-screen {
    background: #f5f5f7;
    color: #1c1c1e;
}

.product-demo[data-demo-phase="heat"] .poi-screen {
    background: #120b18;
}

.product-demo[data-demo-phase="heat"] .poi-cover-demo,
.product-demo[data-demo-phase="heat"] .demo-input {
    background: rgba(30, 20, 38, 0.72);
    border-color: rgba(200, 107, 255, 0.2);
}

.product-demo[data-demo-phase="echo"] .poi-cover-demo,
.product-demo[data-demo-phase="echo"] .demo-input {
    background: rgba(255, 255, 255, 0.74);
    border-color: rgba(255, 255, 255, 0.42);
}

.product-demo[data-demo-phase="heat"] .poi-cover-demo h3,
.product-demo[data-demo-phase="heat"] .demo-note .note-card-text,
.product-demo[data-demo-phase="heat"] .demo-input .message-input {
    color: #fff;
}

.product-demo[data-demo-phase="heat"] .poi-cover-demo p,
.product-demo[data-demo-phase="heat"] .demo-note .note-card-author {
    color: rgba(255, 255, 255, 0.58);
}

.product-demo[data-demo-phase="heat"] .demo-heat,
.product-demo[data-demo-phase="heat"] .demo-input .btn-send-message {
    background: linear-gradient(135deg, #ff3c6f, #c86bff);
    color: #fff;
}

.poi-cover-demo {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 72px;
    z-index: 4;
    padding: 22px 18px 22px;
    border-radius: 28px;
    color: #1c1c1e;
}

.demo-cover-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.demo-circle {
    width: 40px;
    height: 40px;
    font-size: 18px;
    border-radius: 50%;
    background: #fff;
    color: #1c1c1e;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.demo-switch {
    display: flex;
    flex-direction: row;
    width: 220px;
    height: 36px;
    padding: 3px;
    border-radius: 18px;
    background: rgba(0, 0, 0, 0.05);
    flex-shrink: 0;
    overflow: hidden;
}

.demo-switch .switch-side {
    display: flex;
    align-items: center;
    height: 30px;
    border-radius: 15px;
    gap: 4px;
    padding: 0 8px;
    box-sizing: border-box;
    overflow: hidden;
}

.demo-switch.event-active .event-side {
    flex: 0 0 60px;
    justify-content: center;
    background: #fff;
    box-shadow: 0 2px 7px rgba(0, 0, 0, 0.08);
}

.demo-switch.event-active .place-side {
    flex: 0 0 150px;
    justify-content: flex-start;
    background: transparent;
}

.demo-switch.event-active .event-side .side-name,
.demo-switch.event-active .place-side .side-tag {
    display: none;
}

.demo-switch .side-icon {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
    opacity: 0.7;
}

.demo-switch .side-name,
.demo-switch .side-tag {
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.demo-switch .side-name {
    color: #8e8e93;
    font-weight: 650;
    min-width: 0;
}

.demo-switch .side-tag {
    color: #ff3c6f;
    font-weight: 800;
}

.poi-cover-demo h3 {
    margin: 0 0 8px;
    font-size: 22px;
    line-height: 1.12;
    font-weight: 850;
}

.poi-cover-demo p {
    margin: 0;
    color: #8e8e93;
    font-size: 14px;
}

.demo-event-row {
    margin-top: 10px;
    font-size: 12px;
}

.demo-event-row .event-badge {
    padding: 4px 12px;
    border-radius: 8px;
    font-size: 12px;
}

.demo-heat {
    display: inline-flex;
    align-items: center;
    width: max-content;
    max-width: 100%;
    margin-top: 12px;
    padding: 8px 16px;
    border-radius: 18px;
    font-size: 13px;
    font-weight: 800;
}

.demo-event-chip-strip {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 310px;
    z-index: 3;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.demo-event-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    height: 36px;
    padding: 0 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(12px);
    box-sizing: border-box;
}

.demo-event-chip span {
    flex-shrink: 0;
    padding: 4px 8px;
    border-radius: 6px;
    color: #fff;
    background: #ff3c6f;
    font-size: 10px;
    font-weight: 800;
}

.demo-event-chip:not(.active) span {
    background: #ff9a5c;
}

.demo-event-chip strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #1c1c1e;
    font-size: 12px;
    font-weight: 800;
}

.product-demo[data-demo-phase="heat"] .demo-circle {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.product-demo[data-demo-phase="heat"] .demo-switch {
    background: rgba(255, 255, 255, 0.08);
}

.product-demo[data-demo-phase="heat"] .demo-switch.event-active .event-side {
    background: rgba(200, 107, 255, 0.2);
    box-shadow: none;
}

.product-demo[data-demo-phase="heat"] .demo-switch .side-name {
    color: rgba(255, 255, 255, 0.5);
}

.product-demo[data-demo-phase="heat"] .demo-switch .side-tag {
    color: #c86bff;
}

.note-scatter-demo {
    position: absolute;
    inset: 360px 0 130px;
    overflow: hidden;
}

.demo-note {
    position: absolute;
    width: 140px;
    min-height: 80px;
    padding: 12px;
    border-radius: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(255, 154, 92, 0.18);
    box-shadow: 0 8px 18px rgba(255, 154, 92, 0.08);
    z-index: 2;
}

.demo-note .note-card-text {
    margin: 0 0 6px;
    color: #1c1c1e;
    font-size: 12px;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.demo-note .note-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 0;
}

.demo-note .note-card-author {
    color: #8e8e93;
    font-size: 10px;
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.demo-note.seed {
    display: none;
}

.demo-note.seed.n1 { left: 24px; top: 12px; transform: rotate(-4deg); }
.demo-note.seed.n2 { right: 28px; top: 100px; transform: rotate(5deg); }
.demo-note.seed.n3 { left: 120px; top: 210px; transform: rotate(2deg); }

.demo-note.live {
    opacity: 0;
    transform: translateY(12px) rotate(var(--r, 0deg)) scale(0.96);
    animation: demoNoteIn 420ms ease forwards;
}

.product-demo[data-demo-phase="heat"] .demo-note {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 60, 111, 0.28);
    box-shadow: 0 8px 20px rgba(255, 60, 111, 0.12);
}

.demo-input {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 6;
    padding: 16px 16px 30px;
    border-radius: 24px 24px 0 0;
}

.demo-input .input-dock-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    width: 100%;
}

.demo-input .message-input-wrapper {
    flex: 1;
    min-width: 0;
    height: 46px;
    padding: 0 16px;
    margin-right: 10px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
}

.demo-input .message-input {
    color: #1c1c1e;
    font-size: 13px;
}

.demo-input .word-counter {
    font-size: 10px;
}

.demo-input .btn-send-message {
    flex: 0 0 65px;
    width: 65px !important;
    height: 46px;
    border-radius: 23px;
    background: linear-gradient(135deg, #FF9A5C, #FFB88C);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    box-shadow: 0 0 24rpx rgba(255,154,92,0.25);
}

.demo-input .btn-send-message.sent {
    transform: scale(0.96);
    opacity: 0.75;
}

.demo-step-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    width: 100%;
}

.demo-step {
    min-height: 0;
    padding: 10px 11px 11px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(0, 0, 0, 0.3);
    color: rgba(255, 255, 255, 0.68);
    transition: border-color 220ms ease, background 220ms ease, color 220ms ease;
}

.demo-step.active {
    border-color: rgba(255, 154, 92, 0.58);
    background: rgba(255, 154, 92, 0.12);
    color: rgba(255, 255, 255, 0.96);
}

.demo-step span,
.demo-step strong {
    display: block;
}

.demo-step span {
    margin-bottom: 6px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 10px;
    font-weight: 800;
}

.demo-step strong {
    font-size: 16px;
    line-height: 1.2;
    font-weight: 850;
}

.demo-step p {
    margin: 6px 0 0;
    color: rgba(255, 255, 255, 0.62);
    font-size: 12px;
    line-height: 1.35;
}

.feature-card,
.flow-step,
.scene-card,
.mechanism-line article {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 0;
    background: rgba(0, 0, 0, 0.34);
    box-shadow: none;
}

.feature-card {
    min-height: 188px;
    padding: 20px;
}

.feature-index,
.flow-step span,
.mechanism-line span,
.scene-card span {
    display: inline-flex;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.feature-card h3,
.flow-step h3,
.scene-card h3,
.mechanism-line h3 {
    margin: 0;
    color: var(--text);
    font-size: 18px;
    line-height: 1.22;
    font-weight: 800;
    text-transform: uppercase;
}

.feature-card p,
.flow-step p,
.scene-card p,
.mechanism-line p {
    margin: 14px 0 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 13px;
    line-height: 1.65;
}

.demo-section {
    background: linear-gradient(180deg, rgba(9, 20, 33, 0.35), rgba(5, 11, 19, 0));
}

.flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    max-width: 1180px;
    margin: 0 auto;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--line);
}

.flow-step {
    min-height: 286px;
    padding: 24px;
    border: 0;
    border-radius: 0;
    background: rgba(10, 22, 36, 0.82);
}

.flow-step a {
    display: inline-flex;
    margin-top: 22px;
    color: var(--mint);
    font-size: 14px;
    font-weight: 650;
}

.echoes-section {
    display: flex;
    align-items: flex-end;
    max-width: none;
    margin: 0;
}

.echoes-section .echo-copy h2 { color: #FFFFFF; }
.echoes-section .echo-copy p { color: rgba(255,255,255,0.78); }
.echoes-section .section-kicker { color: #C86BFF; }

.echo-copy strong {
    display: block;
    margin-top: 24px;
    color: var(--amber);
    font-size: 18px;
}

/* ─── 留言流动河流（high-heat 暗色版） ─── */
.note-matrix {
    position: absolute;
    top: 130px;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    z-index: 1;
}

.echo-note-card {
    position: absolute;
    width: 360px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 60, 111, 0.25);
    border-radius: 16px;
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 4px 16px rgba(255, 60, 111, 0.1);
    will-change: transform;
    pointer-events: none;
}

.echo-note-card .note-text {
    margin: 0 0 8px;
    font-size: 15px;
    line-height: 1.4;
    color: #FFFFFF;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.echo-note-card .note-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.echo-note-card .note-author {
    font-size: 12px;
    color: #C86BFF;
    white-space: nowrap;
    flex: 1;
}

.echo-note-card .note-likes {
    font-size: 12px;
    color: #FF85A2;
    font-weight: 600;
    flex-shrink: 0;
}

.scene-card {
    min-height: 232px;
    padding: 20px;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.05), transparent 55%),
        rgba(0, 0, 0, 0.36);
}

.scenes-section .scene-grid {
    position: absolute;
    right: clamp(24px, 5.4vw, 96px);
    bottom: clamp(80px, 10vh, 132px);
    width: min(50vw, 760px);
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.scene-card.concert { border-color: rgba(255, 154, 122, 0.34); }
.scene-card.esports { border-color: rgba(116, 230, 255, 0.34); }
.scene-card.expo { border-color: rgba(255, 211, 107, 0.34); }
.scene-card.travel { border-color: rgba(118, 240, 189, 0.34); }
.scene-card.festival { border-color: rgba(255, 118, 196, 0.34); }
.scene-card.sports { border-color: rgba(163, 210, 255, 0.34); }

.mechanics-section {
    background: linear-gradient(180deg, rgba(5, 11, 19, 0), rgba(12, 24, 38, 0.36), rgba(5, 11, 19, 0));
}

.mechanism-line {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    max-width: 1280px;
    margin: 0 auto;
}

.mechanism-line article {
    min-height: 262px;
    padding: 22px;
}

.heat-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(28px, 5vw, 72px);
    align-items: start;
    max-width: 1180px;
    margin: 0 auto;
    padding: clamp(28px, 5vw, 56px);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 78% 28%, rgba(255, 154, 122, 0.15), transparent 30%),
        radial-gradient(circle at 20% 70%, rgba(116, 230, 255, 0.15), transparent 30%),
        var(--panel-strong);
}

.heat-stages {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.heat-stages li {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 18px;
    align-items: baseline;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.04);
}

.heat-stages span {
    color: var(--amber);
    font-weight: 700;
}

.heat-stages p {
    margin: 0;
    color: var(--muted);
    line-height: 1.65;
}

/* ─── Footer partner grid ─── */
.footer-partner-title {
    display: block;
    color: var(--amber);
    font-size: 16px;
    font-weight: 800;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.footer-partner-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 18px;
}

.footer-partner-grid article {
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.04);
    padding: 14px;
}

.footer-partner-grid h3 {
    margin: 0 0 6px;
    color: var(--amber);
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.footer-partner-grid p {
    margin: 0;
    color: rgba(255, 255, 255, 0.65);
    font-size: 12px;
    line-height: 1.5;
}

.experience-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    max-width: none;
    margin: 0;
}

.experience-copy span {
    display: inline-flex;
    margin-top: 12px;
    color: var(--mint);
    font-weight: 700;
}

.experience-copy h2 {
    text-align: center;
}

.experience-qr {
    width: 240px;
    margin-top: 32px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 0;
    background: rgba(0, 0, 0, 0.42);
}

.qr-placeholder.large {
    width: 100%;
}

.site-footer {
    scroll-snap-align: start;
    scroll-snap-stop: always;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
    gap: 32px;
    padding: 44px clamp(20px, 4vw, 72px);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(4, 8, 14, 0.88);
}

.footer-platform {
    margin-top: 8px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

.footer-icp {
    display: block;
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.35);
    font-size: 12px;
    text-decoration: none;
}
.footer-icp:hover {
    color: rgba(255, 255, 255, 0.6);
}

.footer-brand {
    margin-bottom: 14px;
}

.site-footer nav {
    display: grid;
    gap: 10px;
    color: var(--muted);
    font-size: 14px;
}

.site-footer strong {
    color: var(--amber);
    font-size: 14px;
}

.footer-meta {
    color: var(--muted);
    font-size: 14px;
}

.hero-status {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@keyframes heroTitleIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes demoPinPulse {
    0%, 100% {
        box-shadow: 0 0 0 8px rgba(255, 154, 92, 0.14), 0 12px 28px rgba(255, 154, 92, 0.32);
    }

    50% {
        box-shadow: 0 0 0 15px rgba(255, 154, 92, 0.08), 0 16px 36px rgba(255, 154, 92, 0.42);
    }
}

@keyframes demoNoteIn {
    to {
        opacity: 1;
        transform: translateY(0) rotate(var(--r, 0deg)) scale(1);
    }
}

@keyframes oasisAuroraDrift {
    from {
        background-position: 0% 50%, 22% 50%, 52% 50%, 0% 50%;
        transform: translate3d(-2%, 1%, 0) rotate(-2deg) scale(1.06);
    }

    to {
        background-position: 38% 44%, 66% 58%, 88% 48%, 100% 50%;
        transform: translate3d(2%, -1%, 0) rotate(2deg) scale(1.12);
    }
}

@keyframes oasisAuroraChaos {
    0% {
        background-position: 0% 46%, 20% 54%, 48% 50%, 70% 46%, 0% 50%;
        filter: blur(20px) saturate(1.75) contrast(1.08) hue-rotate(0deg);
        transform: translate3d(-3%, 2%, 0) rotate(-3deg) scale(1.08);
    }

    19% {
        background-position: 28% 40%, 66% 62%, 12% 46%, 88% 56%, 100% 50%;
        filter: blur(24px) saturate(2.15) contrast(1.18) hue-rotate(38deg);
        transform: translate3d(2%, -2%, 0) rotate(4deg) scale(1.16);
    }

    43% {
        background-position: 72% 58%, 10% 42%, 86% 64%, 24% 38%, 45% 50%;
        filter: blur(18px) saturate(2.35) contrast(1.12) hue-rotate(116deg);
        transform: translate3d(-1%, -4%, 0) rotate(-7deg) scale(1.12);
    }

    67% {
        background-position: 18% 64%, 82% 34%, 44% 42%, 8% 70%, 76% 50%;
        filter: blur(28px) saturate(1.95) contrast(1.2) hue-rotate(214deg);
        transform: translate3d(4%, 2%, 0) rotate(5deg) scale(1.2);
    }

    100% {
        background-position: 96% 48%, 34% 66%, 70% 34%, 52% 58%, 100% 50%;
        filter: blur(21px) saturate(2.25) contrast(1.14) hue-rotate(318deg);
        transform: translate3d(-2%, 1%, 0) rotate(2deg) scale(1.14);
    }
}

@keyframes oasisLatticeDrift {
    from {
        background-position: 0 0, 0 0;
        opacity: 0.26;
    }

    50% {
        opacity: 0.42;
    }

    to {
        background-position: 84px 42px, 84px 42px;
        opacity: 0.3;
    }
}

@keyframes oasisLatticePulse {
    0% {
        opacity: 0.42;
        background-size:
            14px 14px, 12px 12px, 10px 10px, 16px 16px,
            13px 13px, 18px 18px, 11px 11px, 9px 9px,
            15px 15px, 10px 10px, 12px 12px, 16px 16px,
            8px 8px, 14px 14px, 10px 10px, 13px 13px;
        background-position:
            70% 28%, 84% 58%, 62% 72%, 44% 40%,
            76% 44%, 90% 28%, 54% 56%, 66% 36%,
            82% 76%, 50% 82%, 38% 64%, 92% 68%,
            58% 24%, 70% 86%, 48% 30%, 86% 42%;
        transform: translate3d(0, 0, 0) scale(1);
    }

    28% {
        opacity: 0.82;
        background-size:
            20px 20px, 16px 16px, 14px 14px, 22px 22px,
            19px 19px, 24px 24px, 17px 17px, 13px 13px,
            21px 21px, 14px 14px, 18px 18px, 20px 20px,
            12px 12px, 22px 22px, 14px 14px, 19px 19px;
        background-position:
            76% 24%, 88% 54%, 58% 68%, 48% 44%,
            82% 40%, 94% 30%, 50% 52%, 70% 32%,
            88% 72%, 46% 78%, 42% 68%, 96% 62%,
            54% 28%, 74% 82%, 52% 34%, 90% 46%;
        transform: translate3d(10px, -6px, 0) scale(1.04);
    }

    52% {
        opacity: 0.58;
        background-size:
            16px 16px, 18px 18px, 12px 12px, 18px 18px,
            15px 15px, 20px 20px, 13px 13px, 11px 11px,
            19px 19px, 12px 12px, 16px 16px, 18px 18px,
            10px 10px, 16px 16px, 12px 12px, 15px 15px;
        background-position:
            66% 34%, 82% 62%, 66% 76%, 40% 36%,
            74% 48%, 88% 34%, 58% 60%, 62% 40%,
            80% 80%, 54% 84%, 36% 60%, 90% 72%,
            62% 20%, 68% 90%, 44% 26%, 84% 38%;
        transform: translate3d(-8px, 8px, 0) scale(0.98);
    }

    78% {
        opacity: 0.9;
        background-size:
            22px 22px, 14px 14px, 16px 16px, 20px 20px,
            17px 17px, 26px 26px, 15px 15px, 13px 13px,
            23px 23px, 14px 14px, 18px 18px, 22px 22px,
            12px 12px, 20px 20px, 14px 14px, 17px 17px;
        background-position:
            78% 36%, 90% 48%, 60% 64%, 52% 46%,
            84% 50%, 96% 36%, 52% 58%, 72% 38%,
            86% 68%, 48% 80%, 44% 70%, 94% 58%,
            56% 32%, 76% 78%, 50% 38%, 92% 50%;
        transform: translate3d(4px, 4px, 0) scale(1.06);
    }

    100% {
        opacity: 0.5;
        background-size:
            14px 14px, 20px 20px, 10px 10px, 16px 16px,
            13px 13px, 18px 18px, 11px 11px, 9px 9px,
            17px 17px, 10px 10px, 14px 14px, 16px 16px,
            8px 8px, 18px 18px, 10px 10px, 13px 13px;
        background-position:
            68% 30%, 80% 66%, 72% 70%, 46% 54%,
            78% 42%, 92% 24%, 56% 54%, 64% 34%,
            82% 74%, 52% 86%, 40% 66%, 88% 70%,
            60% 26%, 72% 84%, 46% 32%, 86% 44%;
        transform: translate3d(-2px, 2px, 0) scale(1.01);
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-aurora-bg,
    .site-aurora-bg::before,
    .site-aurora-bg::after,
    .hero-backdrop::after,
    .mission-section::after {
        animation: none;
    }
}

@media (max-width: 1100px) {
    .site-nav {
        display: none;
    }

    .hero-scan {
        display: none;
    }

    .mission-section {
        height: 100svh;
        min-height: 720px;
        display: flex;
        align-items: flex-end;
        padding-top: 88px;
        padding-bottom: 48px;
    }

    .value-grid,
    .note-matrix,
    .scenes-section .scene-grid,
    .experience-qr {
        position: static;
        width: auto;
        margin-top: 24px;
    }

    .feature-grid,
    .scene-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .flow,
    .mechanism-line {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .echoes-section,
    .heat-panel,
    .experience-section,
    .site-footer {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    html {
        scroll-snap-type: none;
    }

    /* 手机只显示 hero、扫码体验、底部栏 */
    #spaces,
    #echoes,
    #scenes {
        display: none;
    }

    .experience-qr {
        width: 200px;
        margin: 32px auto 0;
    }

    .site-header {
        height: 64px;
        padding: 0 18px;
    }

    .brand {
        font-size: 14px;
    }

    .nav-action {
        min-height: 38px;
        padding: 0 12px;
        font-size: 13px;
    }

    .hero-section {
        height: 100svh;
        min-height: 760px;
        padding: 96px 20px 56px;
    }

    .hero-backdrop {
        background-position: 50% center;
    }

    .hero-vignette {
        background:
            linear-gradient(90deg, rgba(2, 6, 11, 0.82) 0%, rgba(2, 6, 11, 0.34) 60%, rgba(2, 6, 11, 0.54) 100%),
            linear-gradient(180deg, rgba(2, 6, 11, 0.38) 0%, transparent 32%, rgba(2, 6, 11, 0.78) 100%);
    }

    .hero-copy {
        font-size: 15px;
        line-height: 1.75;
    }

    .hero-title {
        font-size: clamp(36px, 10.8vw, 44px);
        line-height: 1.08;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .live-tickers {
        display: none;
    }

    .section {
        padding: 68px 20px;
    }

    .mission-section {
        min-height: 760px;
        padding: 84px 20px 44px;
    }

    .section-heading {
        text-align: left;
    }

    .feature-grid,
    .scene-grid,
    .flow,
    .mechanism-line,
    .note-matrix {
        grid-template-columns: 1fr;
    }

    .heat-stages li {
        grid-template-columns: 1fr;
    }

    .site-footer {
        padding: 36px 20px;
    }
}