:root {
    --black-obsidian: #050507;
    --black-carbon: #0b0c10;
    --black-steel: #111319;
    --gray-graphite: #242833;
    --gray-metal: #7c8493;
    --red-tail: #dc2626;
    --red-dark: #6d1214;
    --orange-ignition: #ff7a1a;
    --amber-signal: #f0b84d;
    --white-cold: #f7fbff;
    --white-soft: #d8dee8;
    --text-muted: #8d96a8;
    --border-subtle: rgba(255, 255, 255, 0.11);
    --border-strong: rgba(255, 255, 255, 0.22);
    --glow-soft: 0 0 42px rgba(220, 38, 38, 0.18);
    --glow-hot: 0 0 34px rgba(255, 122, 26, 0.28);
    --shadow-deep: 0 26px 80px rgba(0, 0, 0, 0.52);
    --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.38);
    --nav-height: 78px;
    --radius-sm: 8px;
    --radius-md: 8px;
    --radius-lg: 8px;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-inout: cubic-bezier(0.65, 0, 0.35, 1);
    color-scheme: dark;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    background: var(--black-obsidian);
}

body {
    min-width: 0;
    margin: 0;
    overflow-x: hidden;
    background: var(--black-obsidian);
    color: var(--white-soft);
    font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
}

body.intro-playing {
    overflow: hidden;
}

body.menu-open,
body.modal-open {
    overflow: hidden;
}

img,
video,
canvas,
svg,
iframe {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

button {
    border: 0;
}

button,
a,
input,
select,
textarea {
    min-width: 0;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--orange-ignition);
    outline-offset: 3px;
}

::selection {
    background: rgba(255, 122, 26, 0.28);
    color: var(--white-cold);
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--black-carbon);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--red-tail), var(--orange-ignition));
    border: 2px solid var(--black-carbon);
    border-radius: 999px;
}

.share-probe {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.container {
    width: min(100% - 48px, 1180px);
    margin-inline: auto;
}

.section-shell {
    position: relative;
    padding: clamp(64px, 8vw, 104px) 0;
    isolation: isolate;
}

#about.section-shell {
    padding-bottom: clamp(34px, 4.2vw, 58px);
}

.section-shell::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
    pointer-events: none;
}

.section-band {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.025), rgba(255, 255, 255, 0.01)),
        radial-gradient(circle at 80% 0%, rgba(220, 38, 38, 0.09), transparent 36%);
}

.site-bg {
    position: fixed;
    inset: 0;
    z-index: -10;
    overflow: hidden;
    pointer-events: none;
    background:
        radial-gradient(circle at 18% 16%, rgba(220, 38, 38, 0.14), transparent 31%),
        radial-gradient(circle at 78% 26%, rgba(255, 122, 26, 0.1), transparent 32%),
        linear-gradient(135deg, #030304 0%, #090a0e 48%, #050507 100%);
}

.halo {
    position: absolute;
    border-radius: 999px;
    filter: blur(70px);
    opacity: 0.62;
    will-change: transform;
}

.halo-a {
    width: min(54vw, 700px);
    height: min(54vw, 700px);
    left: -18vw;
    top: -20vh;
    background: rgba(220, 38, 38, 0.28);
    animation: haloDriftA 24s var(--ease-inout) infinite alternate;
}

.halo-b {
    width: min(44vw, 620px);
    height: min(44vw, 620px);
    right: -16vw;
    bottom: -18vh;
    background: rgba(255, 122, 26, 0.14);
    animation: haloDriftB 28s var(--ease-inout) infinite alternate;
}

.grid-field,
.scan-field,
.speed-field,
.noise-field {
    position: absolute;
    inset: 0;
}

.grid-field {
    opacity: 0.28;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(circle at center, black, transparent 72%);
}

.speed-field {
    opacity: 0.26;
    background:
        repeating-linear-gradient(105deg, transparent 0 56px, rgba(255, 255, 255, 0.08) 58px, transparent 60px),
        repeating-linear-gradient(105deg, transparent 0 132px, rgba(255, 122, 26, 0.09) 134px, transparent 136px);
    transform: translate3d(0, 0, 0);
    animation: speedMove 18s linear infinite;
}

.scan-field {
    opacity: 0.12;
    background: repeating-linear-gradient(180deg, transparent 0 8px, rgba(255, 255, 255, 0.16) 9px, transparent 10px);
    mix-blend-mode: screen;
}

.noise-field {
    opacity: 0.16;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.25) 0 1px, transparent 1px),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.18) 0 1px, transparent 1px);
    background-size: 5px 5px, 7px 7px;
    mix-blend-mode: overlay;
}

.cursor-glow {
    position: fixed;
    z-index: 5;
    left: 0;
    top: 0;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    background:
        radial-gradient(circle, rgba(255, 122, 26, 0.18), rgba(220, 38, 38, 0.11) 38%, transparent 68%);
    transform: translate3d(var(--mx, -200px), var(--my, -200px), 0) translate(-50%, -50%);
    transition: opacity 0.35s ease;
    mix-blend-mode: screen;
}

.ignition-intro {
    position: fixed;
    z-index: 1000;
    inset: 0;
    overflow: hidden;
    background:
        radial-gradient(circle at 52% 48%, rgba(255, 255, 255, 0.94), rgba(245, 241, 230, 0.94) 30%, rgba(225, 221, 207, 0.86) 64%, rgba(12, 14, 12, 0.92) 100%),
        #f2efe5;
    color: #151512;
    opacity: 1;
    visibility: visible;
    transform: translate3d(0, 0, 0);
    isolation: isolate;
    transition: opacity 0.62s ease, visibility 0.62s ease, transform 0.62s var(--ease-out);
}

.ignition-intro.is-done {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: scale(1.03);
}

.ignition-intro[hidden] {
    display: none;
}

.intro-contours,
.intro-marquee,
.intro-photo-track,
.intro-vignette,
.intro-headlight,
.intro-speed-ribbons,
.intro-flash {
    position: absolute;
    inset: 0;
}

.intro-contours {
    z-index: 0;
    opacity: 0.58;
    background:
        radial-gradient(ellipse at 24% 18%, transparent 0 24%, rgba(21, 21, 18, 0.14) 24.4% 24.8%, transparent 25.2%),
        radial-gradient(ellipse at 68% 22%, transparent 0 32%, rgba(21, 21, 18, 0.12) 32.4% 32.8%, transparent 33.2%),
        radial-gradient(ellipse at 54% 74%, transparent 0 28%, rgba(21, 21, 18, 0.11) 28.4% 28.8%, transparent 29.2%),
        repeating-linear-gradient(104deg, transparent 0 86px, rgba(21, 21, 18, 0.08) 87px, transparent 89px);
    animation: introContourDrift 7.4s linear infinite;
}

.intro-contours::before,
.intro-contours::after {
    content: "";
    position: absolute;
    left: -16vw;
    right: -16vw;
    pointer-events: none;
}

.intro-contours::before {
    bottom: -18%;
    height: 48%;
    opacity: 0.28;
    background:
        linear-gradient(90deg, transparent 0 48%, rgba(21, 21, 18, 0.32) 49% 51%, transparent 52% 100%),
        repeating-linear-gradient(105deg, transparent 0 58px, rgba(21, 21, 18, 0.18) 60px, transparent 63px),
        repeating-linear-gradient(0deg, rgba(21, 21, 18, 0.1) 0 1px, transparent 1px 18px);
    transform: perspective(560px) rotateX(66deg);
    transform-origin: bottom center;
    animation: introRoadFlow 1.4s linear infinite;
}

.intro-contours::after {
    top: 50%;
    height: 1px;
    opacity: 0.72;
    background: linear-gradient(90deg, transparent, rgba(21, 21, 18, 0.48), transparent);
    box-shadow:
        0 34px 0 rgba(255, 122, 26, 0.24),
        0 78px 0 rgba(207, 235, 31, 0.18);
}

.intro-marquee {
    z-index: 1;
    top: auto;
    bottom: clamp(64px, 8vh, 92px);
    height: clamp(70px, 9vw, 116px);
    display: flex;
    align-items: center;
    gap: 0;
    overflow: hidden;
    color: rgba(21, 21, 18, 0.065);
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(54px, 10vw, 136px);
    font-weight: 900;
    line-height: 1;
    white-space: nowrap;
    text-transform: uppercase;
    transform: translateY(16px);
}

.intro-marquee span {
    flex: 0 0 auto;
    padding-right: 0.32em;
    animation: introMarqueeMove 9s linear infinite;
}

.intro-photo-track {
    z-index: 2;
    display: grid;
    place-items: center;
    pointer-events: none;
}

.intro-photo {
    position: absolute;
    top: 50%;
    left: 50%;
    display: block;
    width: min(62vw, 760px);
    height: 112svh;
    max-height: 980px;
    filter: saturate(0.96) contrast(1.06) brightness(0.96);
    box-shadow: 0 34px 90px rgba(0, 0, 0, 0.18);
    transform: translate3d(-50%, -50%, 0) scale(1);
    will-change: opacity, transform, filter, clip-path;
}

.intro-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: inherit;
}

.intro-photo-a {
    object-position: 50% 53%;
    clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
    animation: introPhotoA 3.7s var(--ease-out) forwards;
}

.intro-photo-b {
    opacity: 0;
    width: min(68vw, 860px);
    object-position: 58% 50%;
    mix-blend-mode: multiply;
    filter: saturate(0.72) contrast(1.12) brightness(0.74);
    clip-path: polygon(0 0, 82% 0, 100% 100%, 16% 100%);
    animation: introPhotoB 3.7s var(--ease-out) forwards;
}

.intro-vignette {
    z-index: 3;
    background:
        linear-gradient(90deg, rgba(242, 239, 229, 0.92) 0 19%, transparent 42%, rgba(242, 239, 229, 0.84) 86% 100%),
        linear-gradient(180deg, rgba(242, 239, 229, 0.86), transparent 22% 62%, rgba(20, 20, 17, 0.24));
    pointer-events: none;
}

.intro-headlight {
    z-index: 4;
    opacity: 0;
    background:
        linear-gradient(105deg, transparent 0 14%, rgba(255, 255, 255, 0.88) 34%, rgba(255, 122, 26, 0.62) 43%, transparent 61%),
        radial-gradient(circle at 66% 54%, rgba(255, 122, 26, 0.34), transparent 32%);
    mix-blend-mode: screen;
    transform: translateX(-68%) skewX(-14deg);
    animation: introHeadlight 3.7s var(--ease-out) forwards;
}

.intro-speed-ribbons {
    z-index: 5;
    opacity: 0;
    pointer-events: none;
    animation: introRibbonsIn 0.24s ease 0.42s forwards, introRibbonsOut 0.42s ease 2.95s forwards;
}

.intro-speed-ribbons span {
    position: absolute;
    left: -18vw;
    width: 142vw;
    height: clamp(12px, 2.1vw, 28px);
    background: linear-gradient(90deg, transparent, rgba(255, 122, 26, 0.88) 32%, rgba(21, 21, 18, 0.9) 50%, rgba(207, 235, 31, 0.78) 64%, transparent);
    transform: skewX(-18deg) translate3d(-40vw, 0, 0);
    animation: introRibbonMove 0.82s cubic-bezier(0.45, 0, 0.12, 1) infinite;
}

.intro-speed-ribbons span:nth-child(1) { top: 12%; animation-delay: 0s; }
.intro-speed-ribbons span:nth-child(2) { top: 27%; height: clamp(8px, 1.5vw, 18px); animation-delay: 0.12s; }
.intro-speed-ribbons span:nth-child(3) { top: 44%; animation-delay: 0.24s; }
.intro-speed-ribbons span:nth-child(4) { top: 61%; height: clamp(8px, 1.5vw, 18px); animation-delay: 0.36s; }
.intro-speed-ribbons span:nth-child(5) { top: 76%; animation-delay: 0.48s; }
.intro-speed-ribbons span:nth-child(6) { top: 88%; height: clamp(7px, 1.3vw, 16px); animation-delay: 0.6s; }

.intro-flash {
    z-index: 9;
    opacity: 0;
    background: rgba(255, 255, 255, 0.94);
    pointer-events: none;
    animation: introFlash 3.7s linear forwards;
}

.intro-brand {
    position: absolute;
    z-index: 6;
    top: clamp(14px, 3vw, 34px);
    left: clamp(14px, 3vw, 36px);
    display: grid;
    gap: 4px;
    color: #151512;
    opacity: 0;
    transform: translate3d(-18px, 0, 0);
    animation: introBrandIn 0.56s var(--ease-out) 0.2s forwards;
}

.intro-brand strong {
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(28px, 5.6vw, 78px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: 0;
}

.intro-brand span {
    color: rgba(21, 21, 18, 0.66);
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(10px, 1.4vw, 13px);
    font-weight: 900;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.intro-monogram {
    position: absolute;
    z-index: 6;
    top: clamp(18px, 3vw, 34px);
    left: 50%;
    width: clamp(40px, 6vw, 64px);
    height: clamp(40px, 6vw, 64px);
    display: grid;
    place-items: center;
    border: 2px solid rgba(21, 21, 18, 0.8);
    border-radius: 50%;
    color: #151512;
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(13px, 2vw, 20px);
    font-weight: 900;
    transform: translate3d(-50%, -10px, 0) scale(0.82);
    opacity: 0;
    animation: introMonogramIn 0.52s var(--ease-out) 0.48s forwards, introMonogramPulse 1.2s ease-in-out 1.2s infinite alternate;
}

.intro-race-card {
    position: absolute;
    z-index: 6;
    left: clamp(14px, 3vw, 36px);
    bottom: clamp(22px, 5vw, 54px);
    width: clamp(104px, 12vw, 150px);
    min-height: clamp(118px, 14vw, 170px);
    display: grid;
    align-content: space-between;
    gap: 10px;
    padding: clamp(12px, 2vw, 16px);
    border: 1px solid rgba(21, 21, 18, 0.72);
    border-radius: 10px;
    background: rgba(244, 241, 230, 0.62);
    color: #151512;
    box-shadow: 0 20px 54px rgba(0, 0, 0, 0.12);
    opacity: 0;
    transform: translate3d(-16px, 18px, 0);
    animation: introCardIn 0.58s var(--ease-out) 0.72s forwards;
}

.intro-race-card span,
.intro-race-card small {
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.1em;
    line-height: 1.2;
    text-transform: uppercase;
}

.intro-race-card strong {
    display: block;
    padding: 16px 0;
    border-top: 1px solid rgba(21, 21, 18, 0.42);
    border-bottom: 1px solid rgba(21, 21, 18, 0.42);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(14px, 1.8vw, 21px);
    font-weight: 900;
    line-height: 1.02;
}

.intro-dashboard {
    --tach-rotate: -132deg;
    --intro-progress: 0%;
    position: absolute;
    z-index: 6;
    right: clamp(14px, 4vw, 46px);
    bottom: clamp(24px, 5vw, 54px);
    width: min(42vw, 468px);
    min-width: 320px;
    display: grid;
    gap: 12px;
    padding: clamp(14px, 2.2vw, 20px);
    border: 1px solid rgba(207, 235, 31, 0.18);
    border-radius: 12px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent 24%),
        repeating-linear-gradient(115deg, transparent 0 12px, rgba(255, 255, 255, 0.035) 13px, transparent 14px),
        rgba(14, 15, 13, 0.9);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.12), inset 0 -1px 0 rgba(207, 235, 31, 0.08);
    color: #f5f2e9;
    overflow: hidden;
    font-variant-numeric: tabular-nums;
    opacity: 0;
    transform: translate3d(22px, 18px, 0);
    animation: introPanelIn 0.58s var(--ease-out) 0.62s forwards;
}

.intro-dashboard > * {
    position: relative;
    z-index: 1;
}

.intro-dashboard::before,
.intro-title::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(110deg, transparent 0 28%, rgba(255, 255, 255, 0.32), transparent 58% 100%);
    transform: translateX(-110%);
    animation: introPanelSweep 1.1s var(--ease-out) 0.98s forwards;
}

.intro-dashboard::after {
    content: "";
    position: absolute;
    z-index: 0;
    top: -38px;
    right: -28px;
    width: clamp(132px, 15vw, 178px);
    aspect-ratio: 1;
    border-radius: 50%;
    opacity: 0.22;
    background:
        radial-gradient(circle at 50% 50%, transparent 0 46%, rgba(245, 242, 233, 0.12) 47% 49%, transparent 50%),
        conic-gradient(from 218deg, rgba(207, 235, 31, 0.76), rgba(255, 122, 26, 0.7), rgba(220, 38, 38, 0.72), transparent 72%);
    -webkit-mask: radial-gradient(circle, transparent 0 52%, #000 53% 69%, transparent 70%);
    mask: radial-gradient(circle, transparent 0 52%, #000 53% 69%, transparent 70%);
    animation: introGaugePulse 0.88s ease-in-out infinite alternate;
}

.intro-kicker {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin: 0;
    color: #cfeb1f;
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(10px, 1.3vw, 12px);
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.intro-kicker::after {
    content: "ECU ONLINE";
    flex: 0 0 auto;
    padding: 3px 6px;
    border: 1px solid rgba(207, 235, 31, 0.26);
    border-radius: 999px;
    color: rgba(245, 242, 233, 0.7);
    background: rgba(207, 235, 31, 0.08);
    font-size: 8px;
    letter-spacing: 0.12em;
}

.intro-cluster {
    display: grid;
    grid-template-columns: minmax(112px, 0.78fr) minmax(0, 1fr);
    align-items: center;
    gap: 12px;
}

.intro-tach {
    position: relative;
    width: min(126px, 100%);
    aspect-ratio: 1;
    border-radius: 50%;
    background:
        radial-gradient(circle at 50% 50%, rgba(245, 242, 233, 0.08) 0 24%, rgba(245, 242, 233, 0.03) 25% 46%, transparent 47%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02)),
        rgba(0, 0, 0, 0.18);
    box-shadow: inset 0 0 0 1px rgba(245, 242, 233, 0.12), 0 16px 28px rgba(0, 0, 0, 0.22);
}

.intro-tach::before,
.intro-tach::after,
.intro-tach-zone {
    content: "";
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    pointer-events: none;
}

.intro-tach::before {
    background: conic-gradient(from 222deg, rgba(245, 242, 233, 0.22) 0 76%, transparent 76% 100%);
    -webkit-mask: radial-gradient(circle, transparent 0 60%, #000 61% 69%, transparent 70%);
    mask: radial-gradient(circle, transparent 0 60%, #000 61% 69%, transparent 70%);
}

.intro-tach::after {
    background: conic-gradient(from 222deg, #cfeb1f 0 var(--intro-progress), rgba(255, 122, 26, 0.95) var(--intro-progress), rgba(220, 38, 38, 0.95) 76%, transparent 76% 100%);
    -webkit-mask: radial-gradient(circle, transparent 0 64%, #000 65% 74%, transparent 75%);
    mask: radial-gradient(circle, transparent 0 64%, #000 65% 74%, transparent 75%);
    filter: drop-shadow(0 0 8px rgba(255, 122, 26, 0.46));
}

.intro-tach-zone {
    inset: 12px;
    background: conic-gradient(from 306deg, transparent 0 66%, rgba(220, 38, 38, 0.32) 66% 78%, transparent 78% 100%);
    -webkit-mask: radial-gradient(circle, transparent 0 54%, #000 55% 61%, transparent 62%);
    mask: radial-gradient(circle, transparent 0 54%, #000 55% 61%, transparent 62%);
}

.intro-tach-mark {
    position: absolute;
    color: rgba(245, 242, 233, 0.62);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 8px;
    font-weight: 900;
    letter-spacing: 0;
}

.intro-tach-mark.mark-a { left: 18px; bottom: 28px; }
.intro-tach-mark.mark-b { left: 26px; top: 23px; }
.intro-tach-mark.mark-c { right: 26px; top: 23px; }
.intro-tach-mark.mark-d { right: 14px; bottom: 31px; color: #ff7a1a; }

.intro-needle {
    position: absolute;
    z-index: 2;
    left: 50%;
    top: 50%;
    width: 38%;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #f5f2e9, #ff7a1a 76%, #dc2626);
    box-shadow: 0 0 12px rgba(255, 122, 26, 0.76);
    transform: rotate(var(--tach-rotate)) translateY(-50%);
    transform-origin: 0 50%;
    transition: transform 0.12s linear;
}

.intro-needle-cap {
    position: absolute;
    z-index: 3;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(245, 242, 233, 0.7);
    border-radius: 50%;
    background: #151512;
    transform: translate(-50%, -50%);
}

.intro-tach-label {
    position: absolute;
    left: 50%;
    bottom: 22px;
    color: rgba(245, 242, 233, 0.5);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 7px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transform: translateX(-50%);
    white-space: nowrap;
}

.intro-ride-stack {
    display: grid;
    gap: 8px;
    min-width: 0;
}

.intro-status-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.intro-status-strip span {
    min-width: 30px;
    padding: 4px 6px;
    border: 1px solid rgba(245, 242, 233, 0.13);
    border-radius: 6px;
    color: rgba(245, 242, 233, 0.62);
    background: rgba(245, 242, 233, 0.055);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 8px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-align: center;
}

.intro-status-strip span.is-hot {
    border-color: rgba(207, 235, 31, 0.42);
    color: #cfeb1f;
    background: rgba(207, 235, 31, 0.1);
    box-shadow: 0 0 14px rgba(207, 235, 31, 0.16);
}

.intro-speed-box,
.intro-gear-box {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: end;
    gap: 7px;
    min-width: 0;
    padding: 8px 9px;
    border: 1px solid rgba(245, 242, 233, 0.1);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.16);
}

.intro-speed-box small,
.intro-gear-box small,
.intro-speed-box span,
.intro-gear-box span {
    color: rgba(245, 242, 233, 0.5);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 8px;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
}

.intro-speed-box strong,
.intro-gear-box strong {
    color: #f5f2e9;
    font-family: "Sora", system-ui, sans-serif;
    font-size: 28px;
    font-weight: 900;
    line-height: 0.88;
    text-align: right;
}

.intro-gear-box strong {
    color: #cfeb1f;
}

.intro-progress-copy {
    display: flex;
    align-items: end;
    gap: 5px;
    color: #f5f2e9;
}

.intro-progress-copy::after {
    content: "Load / ECU Check";
    align-self: center;
    margin-left: 8px;
    color: rgba(245, 242, 233, 0.46);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    white-space: nowrap;
}

.intro-progress-copy strong {
    display: inline-block;
    font-family: "DIN Condensed", "DIN Alternate", "Avenir Next Condensed", "Arial Narrow", sans-serif;
    font-size: clamp(42px, 6vw, 74px);
    font-weight: 900;
    line-height: 0.9;
    font-variant-numeric: tabular-nums;
}

.intro-progress-copy small {
    color: rgba(245, 242, 233, 0.54);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 0.12em;
    line-height: 1.2;
}

.intro-progress-line {
    position: relative;
    height: 5px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(245, 242, 233, 0.18);
}

.intro-progress-line::before {
    content: "";
    position: absolute;
    top: -5px;
    bottom: -5px;
    left: 72%;
    width: 2px;
    background: rgba(255, 255, 255, 0.62);
    box-shadow: 18px 0 0 rgba(220, 38, 38, 0.72), 32px 0 0 rgba(220, 38, 38, 0.42);
}

.intro-progress-line span {
    display: block;
    width: var(--intro-progress, 0%);
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #cfeb1f, #ff7a1a 52%, #dc2626);
    box-shadow: 0 0 18px rgba(255, 122, 26, 0.48);
    transition: width 0.12s linear;
}

.intro-checks {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.intro-checks span {
    min-width: 0;
    padding: 7px 8px;
    border: 1px solid rgba(245, 242, 233, 0.13);
    border-radius: 7px;
    color: rgba(245, 242, 233, 0.78);
    background: rgba(245, 242, 233, 0.07);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(8px);
    animation: introCheckIn 0.36s var(--ease-out) forwards;
}

.intro-checks span:nth-child(1) { animation-delay: 0.82s; }
.intro-checks span:nth-child(2) { animation-delay: 1.05s; }
.intro-checks span:nth-child(3) { animation-delay: 1.28s; }

.intro-title {
    position: absolute;
    z-index: 6;
    left: clamp(150px, 16vw, 236px);
    bottom: clamp(26px, 5vw, 58px);
    width: min(45vw, 660px);
    overflow: hidden;
    opacity: 0;
    transform: translate3d(28px, 20px, 0);
    animation: introTitleIn 0.64s var(--ease-out) 1.05s forwards;
}

.intro-title span {
    display: block;
    color: rgba(21, 21, 18, 0.68);
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(10px, 1.5vw, 14px);
    font-weight: 900;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.intro-title strong {
    display: block;
    margin-top: 8px;
    color: #151512;
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(30px, 5.4vw, 76px);
    font-weight: 900;
    line-height: 0.98;
    letter-spacing: 0;
}

.intro-skip {
    position: absolute;
    z-index: 8;
    top: max(16px, env(safe-area-inset-top));
    right: max(16px, env(safe-area-inset-right));
    min-height: 42px;
    padding: 8px 13px;
    border: 1px solid rgba(21, 21, 18, 0.72);
    border-radius: 8px;
    color: #151512;
    background: rgba(244, 241, 230, 0.66);
    cursor: pointer;
    font-family: "Sora", system-ui, sans-serif;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

body.pointer-active .cursor-glow {
    opacity: 1;
}

.site-nav {
    position: fixed;
    z-index: 100;
    top: 0;
    left: 0;
    right: 0;
    padding-top: env(safe-area-inset-top);
    transition: background 0.35s ease, border-color 0.35s ease, transform 0.35s ease;
}

.site-nav::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0;
    background: rgba(5, 5, 7, 0.78);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    transition: opacity 0.35s ease;
}

.site-nav.scrolled::before,
.site-nav.menu-open::before {
    opacity: 1;
}

.nav-inner {
    position: relative;
    z-index: 1;
    width: min(100% - 44px, 1240px);
    height: var(--nav-height);
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    display: inline-flex;
    align-items: center;
    min-width: 0;
    gap: 12px;
}

.avatar-button {
    flex: 0 0 auto;
    width: 48px;
    height: 48px;
    min-height: 48px;
    padding: 0;
    overflow: hidden;
    border-radius: 50%;
    background: var(--black-carbon);
    border: 1px solid rgba(255, 122, 26, 0.48);
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12), var(--glow-soft);
    cursor: pointer;
}

.avatar-button img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.brand-copy {
    display: grid;
    gap: 1px;
    min-width: 0;
}

.brand-copy strong {
    color: var(--white-cold);
    font-size: 15px;
    font-weight: 800;
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.brand-copy small {
    color: var(--orange-ignition);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(12px, 1.5vw, 24px);
    min-width: 0;
}

.nav-link {
    position: relative;
    color: rgba(247, 251, 255, 0.78);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
    transition: color 0.25s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -9px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--orange-ignition), transparent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.28s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white-cold);
}

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

.menu-toggle {
    display: none;
    width: 48px;
    height: 48px;
    min-height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-subtle);
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    background: var(--white-cold);
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle.is-open span:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle.is-open span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

.mobile-menu {
    position: relative;
    z-index: 1;
    display: none;
    width: min(100% - 32px, 520px);
    margin: 0 auto 14px;
    padding: 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: rgba(10, 11, 15, 0.92);
    box-shadow: var(--shadow-card);
}

.mobile-menu.is-open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.mobile-menu .nav-link {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 9px 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.035);
}

.mobile-menu .nav-link::after {
    display: none;
}

.avatar-preview {
    position: fixed;
    z-index: 300;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.88);
}

.avatar-preview[hidden] {
    display: none;
}

.avatar-preview button {
    position: absolute;
    top: max(18px, env(safe-area-inset-top));
    right: max(18px, env(safe-area-inset-right));
    width: 48px;
    height: 48px;
    min-height: 48px;
    border-radius: 50%;
    color: var(--white-cold);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-subtle);
    cursor: pointer;
    font-size: 28px;
    line-height: 1;
}

.avatar-preview img {
    max-width: min(92vw, 720px);
    max-height: 86svh;
    object-fit: contain;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-deep);
}

.hero {
    min-height: 100svh;
    display: grid;
    align-items: center;
    padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 44px);
    padding-bottom: max(56px, env(safe-area-inset-bottom));
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    z-index: -1;
    right: -12vw;
    top: 20%;
    width: min(74vw, 900px);
    height: min(34vw, 420px);
    background: linear-gradient(104deg, transparent, rgba(255, 244, 214, 0.16) 24%, rgba(255, 122, 26, 0.2) 46%, transparent 72%);
    mix-blend-mode: screen;
    transform: skewX(-14deg);
    animation: heroHeadlight 5.5s ease-in-out infinite;
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    left: -10vw;
    right: -10vw;
    bottom: 8%;
    height: 26%;
    opacity: 0.22;
    background:
        repeating-linear-gradient(102deg, transparent 0 72px, rgba(255, 255, 255, 0.13) 74px, transparent 76px),
        linear-gradient(90deg, transparent, rgba(255, 122, 26, 0.22), transparent);
    transform: perspective(700px) rotateX(62deg);
    transform-origin: bottom center;
    animation: heroRoadMove 9s linear infinite;
    pointer-events: none;
}

.hero-media,
.hero-overlay,
.hero-lines {
    position: absolute;
    inset: 0;
    z-index: -3;
}

.hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 64% 50%;
    filter: saturate(0.92) contrast(1.1) brightness(0.68);
    transform: scale(1.04);
    animation: heroScale 18s var(--ease-inout) infinite alternate;
}

.hero-overlay {
    z-index: -2;
    background:
        radial-gradient(circle at 72% 42%, rgba(220, 38, 38, 0.24), transparent 34%),
        radial-gradient(circle at 18% 78%, rgba(255, 122, 26, 0.16), transparent 30%),
        linear-gradient(90deg, rgba(5, 5, 7, 0.94), rgba(5, 5, 7, 0.54) 48%, rgba(5, 5, 7, 0.68)),
        linear-gradient(180deg, rgba(5, 5, 7, 0.28), rgba(5, 5, 7, 0.9));
}

.hero-lines {
    z-index: -1;
    opacity: 0.34;
    background:
        linear-gradient(115deg, transparent 0 38%, rgba(255, 255, 255, 0.12) 39%, transparent 40%),
        repeating-linear-gradient(100deg, transparent 0 88px, rgba(255, 122, 26, 0.18) 90px, transparent 92px);
    animation: speedMove 12s linear infinite;
}

.hero-marquee {
    position: absolute;
    z-index: -1;
    left: 0;
    right: 0;
    bottom: clamp(18px, 5vh, 56px);
    display: flex;
    overflow: hidden;
    color: rgba(247, 251, 255, 0.045);
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(48px, 9.8vw, 132px);
    font-weight: 900;
    line-height: 0.9;
    white-space: nowrap;
    text-transform: uppercase;
    pointer-events: none;
}

.hero-marquee span {
    flex: 0 0 auto;
    padding-right: 0.36em;
    animation: heroMarqueeMove 16s linear infinite;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: center;
    gap: clamp(24px, 4vw, 54px);
}

.hero-copy {
    width: min(100%, 1120px);
    min-width: 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    min-height: 30px;
    padding: 5px 10px;
    border: 1px solid rgba(255, 122, 26, 0.28);
    border-radius: 999px;
    background: rgba(255, 122, 26, 0.08);
    color: var(--amber-signal);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(10px, 1.4vw, 12px);
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    overflow-wrap: anywhere;
}

.hero-title,
.section-head h2,
.content-panel h2,
.zhangxue-section h2 {
    margin: 0;
    color: var(--white-cold);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-weight: 900;
    line-height: 0.98;
    letter-spacing: 0;
}

.hero-title {
    margin-top: 20px;
    max-width: 1120px;
    font-size: clamp(46px, 9.2vw, 112px);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.hero-title span {
    display: block;
    margin-top: 8px;
    background: linear-gradient(100deg, var(--white-cold) 8%, var(--orange-ignition) 42%, var(--red-tail) 78%, var(--white-cold));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: clamp(34px, 5.5vw, 70px);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.hero-lead {
    max-width: 730px;
    margin: 26px 0 0;
    color: rgba(247, 251, 255, 0.82);
    font-size: clamp(16px, 2.1vw, 21px);
    line-height: 1.75;
}

.hero-lead a,
.content-panel a,
.site-footer a {
    color: var(--orange-ignition);
    font-weight: 800;
}

.tag-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.hero-bike-cinema {
    position: relative;
    width: min(100%, 760px);
    height: clamp(118px, 15vw, 178px);
    margin: 24px 0 0;
    overflow: hidden;
    border: 1px solid rgba(255, 122, 26, 0.26);
    border-radius: var(--radius-md);
    background: var(--black-carbon);
    box-shadow: 0 18px 58px rgba(0, 0, 0, 0.32), 0 0 38px rgba(255, 122, 26, 0.08);
}

.hero-bike-cinema picture {
    display: block;
    width: 100%;
    height: 100%;
}

.hero-bike-cinema::before,
.hero-bike-cinema::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-bike-cinema::before {
    z-index: 1;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.58), transparent 48%, rgba(0, 0, 0, 0.24)),
        linear-gradient(180deg, transparent 36%, rgba(0, 0, 0, 0.7));
}

.hero-bike-cinema::after {
    z-index: 2;
    background: linear-gradient(104deg, transparent 0 24%, rgba(255, 255, 255, 0.2), transparent 50% 100%);
    transform: translateX(-120%) skewX(-14deg);
    animation: heroCinemaSweep 4.8s var(--ease-out) infinite;
}

.hero-bike-cinema img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 58%;
    filter: saturate(0.96) contrast(1.08) brightness(0.82);
    transform: scale(1.04);
}

.hero-bike-cinema figcaption {
    position: absolute;
    z-index: 3;
    left: 14px;
    right: 14px;
    bottom: 12px;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 10px;
}

.hero-bike-cinema span,
.hero-bike-cinema strong {
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.68);
}

.hero-bike-cinema span {
    color: var(--orange-ignition);
    font-size: 11px;
}

.hero-bike-cinema strong {
    max-width: 58%;
    color: var(--white-cold);
    font-size: 12px;
    line-height: 1.15;
    text-align: right;
    overflow-wrap: anywhere;
}

.tag-stack span {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 999px;
    color: rgba(247, 251, 255, 0.82);
    background: rgba(255, 255, 255, 0.045);
    font-size: 13px;
    font-weight: 700;
}

.moto-plate {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, auto)) minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    width: min(100%, 760px);
    margin-top: 18px;
    padding: 10px;
    border: 1px solid rgba(255, 122, 26, 0.26);
    border-radius: var(--radius-md);
    background:
        linear-gradient(100deg, rgba(255, 122, 26, 0.12), transparent 35% 65%, rgba(220, 38, 38, 0.11)),
        repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.045) 0 1px, transparent 1px 9px);
    overflow: hidden;
}

.moto-plate::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.18), transparent);
    transform: translateX(-110%);
    animation: motoPlateSweep 4.2s var(--ease-out) infinite;
}

.moto-plate span,
.moto-plate strong {
    position: relative;
    z-index: 1;
    min-width: 0;
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    overflow-wrap: anywhere;
}

.moto-plate span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 8px;
    border-radius: 6px;
    color: rgba(247, 251, 255, 0.78);
    background: rgba(0, 0, 0, 0.22);
}

.moto-plate strong {
    justify-self: end;
    color: var(--amber-signal);
    text-align: right;
}

.hero-actions,
.profile-links,
.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-actions {
    margin-top: 32px;
}

.hero-social-links {
    width: min(100%, 980px);
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
    gap: 10px;
}

.hero-social-links a {
    justify-content: center;
    color: rgba(247, 251, 255, 0.82);
    background: rgba(247, 251, 255, 0.045);
}

.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    min-width: 0;
    padding: 13px 18px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    font-size: 14px;
    font-weight: 900;
    line-height: 1.2;
    text-align: center;
    isolation: isolate;
    transition: transform 0.25s var(--ease-out), border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn span {
    position: relative;
    z-index: 1;
}

.btn::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background: linear-gradient(110deg, transparent 0 28%, rgba(255, 255, 255, 0.36) 42%, transparent 58% 100%);
    transform: translateX(-120%);
    transition: transform 0.55s var(--ease-out);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:hover::before {
    transform: translateX(120%);
}

.btn-primary {
    border: 1px solid rgba(255, 122, 26, 0.5);
    color: white;
    background:
        linear-gradient(135deg, rgba(255, 122, 26, 0.95), rgba(220, 38, 38, 0.94) 52%, rgba(109, 18, 20, 0.98));
    box-shadow: 0 14px 42px rgba(220, 38, 38, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.26);
}

.btn-primary:hover {
    box-shadow: 0 18px 58px rgba(255, 122, 26, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.34);
}

.btn-ghost {
    border: 1px solid var(--border-strong);
    color: var(--white-cold);
    background: rgba(255, 255, 255, 0.055);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.btn-ghost:hover {
    border-color: rgba(255, 122, 26, 0.52);
    box-shadow: var(--glow-hot), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-disabled,
button:disabled {
    cursor: not-allowed;
    opacity: 0.58;
}

.btn-disabled {
    background: rgba(255, 255, 255, 0.08);
    color: rgba(247, 251, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-wide {
    width: 100%;
}

.metal-card::before,
.stat-card::before,
.message-item::before,
.story-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 20%, rgba(255, 255, 255, 0.12), transparent 54%);
    transform: translateX(-130%);
    transition: transform 0.7s var(--ease-out);
    pointer-events: none;
}

.metal-card:hover::before,
.stat-card:hover::before,
.message-item:hover::before,
.story-card:hover::before {
    transform: translateX(130%);
}

.profile-links a,
.benefit-grid div,
.result-card,
.style-card {
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.045);
}

.benefit-grid small,
.result-card small,
.style-card small,
.stat-card small {
    display: block;
    color: var(--text-muted);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.benefit-grid strong {
    display: block;
    margin-top: 4px;
    color: var(--white-cold);
    font-size: 13px;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.profile-links {
    margin-top: 16px;
}

.profile-links a,
.contact-links a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 10px 12px;
    color: var(--white-cold);
    font-size: 13px;
    font-weight: 800;
    border: 1px solid rgba(255, 122, 26, 0.22);
    border-radius: var(--radius-sm);
    background: rgba(255, 122, 26, 0.055);
    transition: transform 0.22s var(--ease-out), border-color 0.22s ease, background 0.22s ease;
}

.profile-links a:hover,
.contact-links a:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 122, 26, 0.52);
    background: rgba(255, 122, 26, 0.1);
}

.profile-links.hero-social-links {
    margin-top: 18px;
}

.profile-links.hero-social-links a {
    min-height: 40px;
    justify-content: center;
    padding: 8px 10px;
    font-size: 12px;
    line-height: 1.22;
    text-align: center;
    overflow-wrap: anywhere;
}

.about-layout .contact-links {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-top: 4px;
}

.about-layout .contact-links a {
    justify-content: center;
    min-height: 54px;
    text-align: center;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.scroll-cue {
    position: absolute;
    left: 50%;
    bottom: max(20px, env(safe-area-inset-bottom));
    width: 32px;
    height: 54px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    transform: translateX(-50%);
}

.scroll-cue span {
    position: absolute;
    top: 10px;
    left: 50%;
    width: 4px;
    height: 10px;
    border-radius: 999px;
    background: var(--orange-ignition);
    transform: translateX(-50%);
    animation: scrollPulse 1.8s ease-in-out infinite;
}

.section-head {
    max-width: 780px;
    margin-bottom: clamp(24px, 4vw, 42px);
}

.section-head.center {
    margin-inline: auto;
    text-align: center;
}

.section-head h2,
.content-panel h2,
.welfare-copy h2,
.zhangxue-section h2 {
    margin-top: 12px;
    font-size: clamp(34px, 5vw, 64px);
}

.section-head p:not(.eyebrow),
.content-panel > p,
.welfare-copy > p,
.card-copy {
    color: var(--text-muted);
    font-size: clamp(15px, 1.8vw, 18px);
}

.section-head p:not(.eyebrow) {
    margin: 12px 0 0;
}

.tool-stack {
    display: grid;
    gap: 24px;
}

.metal-card,
.stat-card,
.message-item,
.story-card,
.media-panel,
.content-panel {
    position: relative;
    min-width: 0;
    border: 1px solid var(--border-subtle);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.095), rgba(255, 255, 255, 0.02)),
        linear-gradient(180deg, rgba(14, 15, 20, 0.86), rgba(7, 8, 12, 0.9));
    box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    overflow: hidden;
    transition: transform 0.35s var(--ease-out), border-color 0.35s ease, box-shadow 0.35s ease;
}

.metal-card,
.content-panel {
    border-radius: var(--radius-lg);
    padding: clamp(18px, 3vw, 34px);
}

.metal-card::after,
.stat-card::after,
.message-item::after,
.story-card::after,
.content-panel::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.09), transparent 24% 76%, rgba(255, 255, 255, 0.05)),
        repeating-linear-gradient(135deg, transparent 0 16px, rgba(255, 255, 255, 0.025) 17px, transparent 18px);
    opacity: 0.55;
}

.metal-card:hover,
.stat-card:hover,
.message-item:hover,
.story-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 122, 26, 0.34);
    box-shadow: var(--shadow-card), var(--glow-soft);
}

.card-head {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.card-head h3,
.message-list h3,
.game-strip h3,
.story-card h3 {
    margin: 0;
    color: var(--white-cold);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(19px, 2.4vw, 26px);
    line-height: 1.22;
}

.micro-label {
    margin: 0 0 8px;
    color: var(--orange-ignition);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.status-chip {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 5px 9px;
    border: 1px solid rgba(121, 255, 176, 0.24);
    border-radius: 999px;
    color: #a8ffc9;
    background: rgba(121, 255, 176, 0.08);
    font-size: 11px;
    font-weight: 900;
    white-space: nowrap;
}

.status-chip.muted {
    color: var(--text-muted);
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
}

.card-copy,
.form-panel,
.responsive-grid,
.result-grid,
.fine-print,
.style-card {
    position: relative;
    z-index: 1;
}

.segment-control {
    position: relative;
    z-index: 1;
    display: inline-grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    width: min(100%, 420px);
    padding: 5px;
    margin: 10px 0 18px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.045);
}

.segment-button {
    min-height: 44px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: rgba(247, 251, 255, 0.78);
    background: transparent;
    cursor: pointer;
    font-size: 13px;
    font-weight: 900;
    transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.segment-button.is-active {
    color: white;
    background: linear-gradient(135deg, rgba(255, 122, 26, 0.92), rgba(220, 38, 38, 0.92));
    box-shadow: 0 10px 24px rgba(220, 38, 38, 0.22);
}

.form-panel,
.field-group {
    display: grid;
    gap: 8px;
}

.form-panel {
    margin-bottom: 18px;
}

.is-hidden,
.hidden {
    display: none !important;
}

label {
    color: rgba(247, 251, 255, 0.76);
    font-size: 12px;
    font-weight: 800;
}

.field,
.field-like {
    width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    color: var(--white-cold);
    background: rgba(5, 6, 9, 0.72);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    transition: border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

select.field {
    color: var(--white-cold);
}

.field::placeholder {
    color: rgba(216, 222, 232, 0.42);
}

.field:focus {
    border-color: rgba(255, 122, 26, 0.56);
    box-shadow: 0 0 0 4px rgba(255, 122, 26, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.field:disabled,
textarea:disabled,
select:disabled,
input:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.param-desc,
.fine-print,
.source-note {
    color: rgba(216, 222, 232, 0.55);
    font-size: 11px;
    line-height: 1.65;
}

.responsive-grid {
    display: grid;
    gap: 14px;
    margin-bottom: 18px;
}

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

.four-col {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.load-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.load-btn {
    color: rgba(247, 251, 255, 0.78);
    cursor: pointer;
    font-size: 12px;
    font-weight: 800;
}

.load-btn.active,
.load-btn.is-active {
    border-color: rgba(255, 122, 26, 0.72);
    color: white;
    background: rgba(255, 122, 26, 0.16);
}

.alert {
    position: relative;
    z-index: 1;
    margin-top: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 13px;
    font-weight: 900;
    text-align: center;
}

.alert-safe {
    background: rgba(16, 185, 129, 0.2);
    border: 1px solid rgba(16, 185, 129, 0.46);
}

.alert-warn {
    background: rgba(245, 158, 11, 0.2);
    border: 1px solid rgba(245, 158, 11, 0.5);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.22);
    border: 1px solid rgba(239, 68, 68, 0.54);
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.result-card {
    min-width: 0;
    padding: 16px;
    text-align: center;
}

.result-card strong {
    display: block;
    margin-top: 6px;
    color: var(--white-cold);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(22px, 3.2vw, 34px);
    line-height: 1.16;
    overflow-wrap: anywhere;
}

.result-card span {
    display: block;
    min-height: 18px;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 12px;
}

.result-card.border-green-500 {
    border-color: rgba(16, 185, 129, 0.58);
    box-shadow: 0 0 28px rgba(16, 185, 129, 0.12);
}

.result-card.border-yellow-500 {
    border-color: rgba(245, 158, 11, 0.62);
    box-shadow: 0 0 28px rgba(245, 158, 11, 0.12);
}

.style-card {
    margin-top: 14px;
    padding: 18px;
    text-align: center;
}

.style-card strong {
    display: block;
    margin-top: 5px;
    color: var(--white-cold);
    font-size: clamp(20px, 3vw, 28px);
    overflow-wrap: anywhere;
}

.style-card p {
    margin: 8px 0 0;
    color: rgba(247, 251, 255, 0.72);
}

.style-pop {
    animation: pop 0.28s var(--ease-out);
}

.border-green-500 {
    border-color: rgba(16, 185, 129, 0.65) !important;
}

.border-blue-500 {
    border-color: rgba(59, 130, 246, 0.65) !important;
}

.border-red-500 {
    border-color: rgba(239, 68, 68, 0.65) !important;
}

.bg-green-900\/20 {
    background: rgba(20, 83, 45, 0.22) !important;
}

.bg-blue-900\/20 {
    background: rgba(30, 58, 138, 0.22) !important;
}

.bg-red-900\/20 {
    background: rgba(127, 29, 29, 0.22) !important;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.stat-card {
    border-radius: var(--radius-md);
    padding: clamp(18px, 3vw, 28px);
    text-align: center;
}

.stat-card strong {
    display: block;
    margin-top: 8px;
    color: var(--white-cold);
    font-family: "Sora", system-ui, sans-serif;
    font-size: clamp(32px, 5.4vw, 58px);
    line-height: 1;
    overflow-wrap: anywhere;
}

.stat-card strong.red {
    color: var(--orange-ignition);
}

.source-note {
    margin: 28px 0 0;
    text-align: center;
}

.notice-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    margin-bottom: 22px;
    padding: 12px 16px;
    border: 1px solid rgba(255, 122, 26, 0.38);
    border-radius: var(--radius-sm);
    color: var(--white-cold);
    background: linear-gradient(135deg, rgba(255, 122, 26, 0.2), rgba(220, 38, 38, 0.18));
    font-weight: 900;
    text-align: center;
}

.message-grid {
    display: grid;
    grid-template-columns: minmax(270px, 0.72fr) minmax(0, 1fr);
    gap: 20px;
}

.message-form {
    display: grid;
    gap: 12px;
}

.route-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.route-tags button,
.list-head button {
    min-height: 34px;
    padding: 6px 10px;
    border: 1px solid rgba(255, 122, 26, 0.32);
    border-radius: 999px;
    color: var(--orange-ignition);
    background: rgba(255, 122, 26, 0.06);
    font-size: 12px;
    font-weight: 800;
}

.message-list {
    min-width: 0;
    display: grid;
    gap: 12px;
}

.list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-width: 0;
}

.message-item {
    border-radius: var(--radius-md);
    padding: 18px;
}

.message-item span {
    float: right;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 800;
}

.message-item h4 {
    margin: 0;
    color: var(--white-cold);
    font-size: 18px;
}

.message-item p {
    margin: 6px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.message-item strong {
    display: block;
    margin-top: 8px;
    color: rgba(247, 251, 255, 0.86);
    font-weight: 700;
}

.zhangxue-section {
    background:
        radial-gradient(circle at 50% 0%, rgba(220, 38, 38, 0.19), transparent 36%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
}

.story-grid {
    display: grid;
    gap: 18px;
}

.story-card {
    display: grid;
    grid-template-columns: minmax(220px, 0.44fr) minmax(0, 1fr);
    gap: clamp(16px, 3vw, 28px);
    align-items: stretch;
    border-radius: var(--radius-lg);
    padding: clamp(14px, 2vw, 18px);
}

.story-card img {
    width: 100%;
    height: 100%;
    min-height: 260px;
    object-fit: cover;
    border-radius: var(--radius-md);
    filter: saturate(0.92) contrast(1.08) brightness(0.9);
}

.story-card > div {
    position: relative;
    z-index: 1;
    min-width: 0;
    align-self: center;
    padding: clamp(6px, 1.5vw, 14px);
}

.story-card ul {
    display: grid;
    gap: 10px;
    margin: 16px 0 0;
    padding-left: 18px;
}

.story-card li,
.story-card blockquote {
    color: rgba(247, 251, 255, 0.78);
    overflow-wrap: anywhere;
}

.story-card li strong {
    color: var(--white-cold);
}

.quote-card blockquote {
    margin: 14px 0 0;
    padding-left: 14px;
    border-left: 2px solid rgba(255, 122, 26, 0.58);
    font-size: clamp(17px, 2.2vw, 24px);
    font-weight: 800;
}

.split-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(22px, 5vw, 56px);
    align-items: center;
}

.welfare-section {
    min-height: min(780px, 100svh);
    display: grid;
    align-items: center;
    overflow: hidden;
    background: #050507;
}

.welfare-bg {
    position: absolute;
    inset: 0;
    z-index: -3;
    overflow: hidden;
}

.welfare-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 50%;
    filter: saturate(0.95) contrast(1.22) brightness(0.78);
    opacity: 0.82;
    transform: scale(1.03);
}

.welfare-section::before,
.welfare-section::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.welfare-section::before {
    z-index: -2;
    background:
        linear-gradient(90deg, rgba(5, 5, 7, 0.92) 0%, rgba(5, 5, 7, 0.68) 48%, rgba(5, 5, 7, 0.34) 100%),
        linear-gradient(180deg, rgba(5, 5, 7, 0.58), rgba(5, 5, 7, 0.3) 45%, rgba(5, 5, 7, 0.86));
}

.welfare-section::after {
    z-index: -1;
    opacity: 0.34;
    background:
        radial-gradient(circle at 78% 22%, rgba(255, 122, 26, 0.24), transparent 31%),
        linear-gradient(110deg, transparent 0 58%, rgba(255, 122, 26, 0.2) 58.4% 59%, transparent 59.4%),
        repeating-linear-gradient(105deg, transparent 0 92px, rgba(255, 255, 255, 0.11) 94px, transparent 96px);
}

.welfare-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.88fr) minmax(420px, 0.72fr);
    gap: clamp(34px, 6vw, 86px);
    align-items: center;
}

.welfare-copy {
    position: relative;
    min-width: 0;
    max-width: 680px;
    padding-left: clamp(0px, 2vw, 22px);
}

.welfare-copy::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background: linear-gradient(180deg, var(--orange-ignition), rgba(220, 38, 38, 0.22), transparent);
}

.welfare-copy h2 {
    margin: 18px 0 0;
    color: var(--white-cold);
    font-family: "Sora", "Noto Sans SC", sans-serif;
    font-size: clamp(52px, 6.2vw, 88px);
    font-weight: 900;
    line-height: 0.94;
    letter-spacing: 0;
    text-wrap: balance;
}

.welfare-copy > p {
    max-width: 620px;
    margin: 18px 0 0;
    color: rgba(247, 251, 255, 0.78);
    line-height: 1.8;
}

.welfare-copy a:not(.btn) {
    color: var(--orange-ignition);
    font-weight: 900;
}

.welfare-copy .btn {
    margin-top: 28px;
}

.welfare-pass-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    max-width: 600px;
    margin-top: 24px;
}

.welfare-pass-row span {
    min-width: 0;
    padding: 13px 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.055);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.welfare-pass-row small {
    display: block;
    color: var(--amber-signal);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.welfare-pass-row strong {
    display: block;
    margin-top: 4px;
    color: var(--white-cold);
    font-size: 15px;
    font-weight: 900;
    line-height: 1.25;
}

.welfare-card {
    position: relative;
    justify-self: end;
    width: min(100%, 560px);
    min-width: 0;
    display: grid;
    gap: 20px;
    padding: clamp(18px, 2.4vw, 30px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-lg);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.035)),
        rgba(6, 7, 10, 0.7);
    box-shadow: var(--shadow-deep), inset 0 1px 0 rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(24px) saturate(140%);
    -webkit-backdrop-filter: blur(24px) saturate(140%);
    overflow: hidden;
}

.welfare-card > * {
    position: relative;
    z-index: 1;
}

.welfare-card-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.welfare-card-head span {
    color: var(--amber-signal);
    font-family: "Sora", system-ui, sans-serif;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.welfare-card-head strong {
    color: var(--white-cold);
    font-size: clamp(18px, 2vw, 24px);
    font-weight: 900;
    line-height: 1.1;
    text-align: right;
}

.welfare-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(120deg, transparent 20%, rgba(255, 255, 255, 0.11), transparent 54%);
    transform: translateX(-130%);
    transition: transform 0.7s var(--ease-out);
}

.welfare-card:hover::before {
    transform: translateX(130%);
}

.media-panel {
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 380px;
}

.media-panel img {
    width: 100%;
    height: 100%;
    min-height: 380px;
    object-fit: cover;
    filter: saturate(0.92) contrast(1.08) brightness(0.86);
    transition: transform 0.75s var(--ease-out), filter 0.35s ease;
}

.media-panel:hover img {
    transform: scale(1.04);
    filter: saturate(1.02) contrast(1.1) brightness(0.92);
}

.content-panel {
    display: grid;
    gap: 20px;
}

.content-panel > * {
    position: relative;
    z-index: 1;
}

.content-panel h2 a {
    color: inherit;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.benefit-grid div {
    padding: 14px;
}

.game-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 20px;
    border-top: 1px solid var(--border-subtle);
}

.game-strip p {
    margin: 6px 0 0;
    color: var(--text-muted);
}

.album-container {
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px 0 22px;
    cursor: grab;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.album-container.dragging {
    cursor: grabbing;
    scroll-snap-type: none;
}

.album-list {
    display: flex;
    gap: 18px;
    width: max-content;
}

.album-item {
    position: relative;
    width: clamp(220px, 26vw, 320px);
    aspect-ratio: 0.72;
    margin: 0;
    flex: 0 0 auto;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--black-carbon);
    scroll-snap-align: start;
    box-shadow: var(--shadow-card);
}

.album-item::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, transparent 54%, rgba(0, 0, 0, 0.52));
}

.album-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out), filter 0.35s ease;
}

.album-item:hover img {
    transform: scale(1.045);
    filter: saturate(1.08);
}

.about-layout {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.82fr);
}

.manifesto {
    display: grid;
    gap: 12px;
}

.manifesto p {
    margin: 0;
    color: rgba(247, 251, 255, 0.82);
    font-size: clamp(15px, 1.8vw, 18px);
}

.contact-links {
    margin-top: 8px;
}

.site-footer {
    padding: 26px 0 max(24px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.025);
}

.site-footer .container {
    display: grid;
    gap: 6px;
    text-align: center;
}

.site-footer p {
    margin: 0;
    color: rgba(247, 251, 255, 0.72);
    font-size: 13px;
}

.site-footer p:last-child {
    color: rgba(216, 222, 232, 0.48);
    font-size: 11px;
}

.reveal {
    opacity: 0;
    transform: translate3d(0, 28px, 0);
    transition: opacity 0.78s var(--ease-out), transform 0.78s var(--ease-out);
}

.reveal.in {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.intro-item {
    transition-delay: calc(var(--intro-order, 0) * 92ms);
}

@keyframes haloDriftA {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to { transform: translate3d(12vw, 10vh, 0) scale(1.14); }
}

@keyframes haloDriftB {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to { transform: translate3d(-10vw, -8vh, 0) scale(1.1); }
}

@keyframes speedMove {
    from { background-position: 0 0, 0 0; }
    to { background-position: 420px 0, 760px 0; }
}

@keyframes heroScale {
    from { transform: scale(1.04); }
    to { transform: scale(1.09); }
}

@keyframes heroHeadlight {
    0%, 100% { opacity: 0.18; transform: translateX(-2%) skewX(-14deg); }
    48% { opacity: 0.54; transform: translateX(3%) skewX(-14deg); }
}

@keyframes heroRoadMove {
    from { background-position: 0 0, 0 0; }
    to { background-position: 520px 0, 0 0; }
}

@keyframes heroCinemaSweep {
    0%, 46% { transform: translateX(-120%) skewX(-14deg); }
    74%, 100% { transform: translateX(120%) skewX(-14deg); }
}

@keyframes scrollPulse {
    0%, 100% { transform: translate(-50%, 0); opacity: 0.45; }
    50% { transform: translate(-50%, 16px); opacity: 1; }
}

@keyframes pop {
    from { transform: scale(0.96); opacity: 0.72; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes heroMarqueeMove {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}

@keyframes introContourDrift {
    from { background-position: 0 0, 0 0, 0 0, 0 0; }
    to { background-position: 120px 60px, -90px 80px, 70px -110px, 420px 0; }
}

@keyframes introRoadFlow {
    from { background-position: 0 0, 0 0, 0 0; }
    to { background-position: 0 0, 120px 0, 0 72px; }
}

@keyframes introMarqueeMove {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}

@keyframes introPhotoA {
    0% {
        opacity: 0;
        filter: saturate(0.42) contrast(1.22) brightness(0.74) blur(8px);
        clip-path: polygon(45% 0, 54% 0, 48% 100%, 38% 100%);
        transform: translate3d(-50%, -50%, 0) scale(1.22) rotate(-1.6deg);
    }
    20% {
        opacity: 1;
        filter: saturate(0.98) contrast(1.08) brightness(1) blur(0);
        clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
    }
    64% {
        opacity: 1;
        transform: translate3d(-50.8%, -50%, 0) scale(1.06) rotate(0deg);
    }
    100% {
        opacity: 0.94;
        filter: saturate(1.02) contrast(1.08) brightness(0.96) blur(0);
        transform: translate3d(-51.8%, -50%, 0) scale(1.02) rotate(0deg);
    }
}

@keyframes introPhotoB {
    0%, 38% {
        opacity: 0;
        filter: saturate(0.56) contrast(1.14) brightness(0.48) blur(6px);
        clip-path: polygon(40% 0, 48% 0, 55% 100%, 46% 100%);
        transform: translate3d(-28%, -50%, 0) scale(1.16) rotate(1.8deg);
    }
    55% {
        opacity: 0.34;
        filter: saturate(0.72) contrast(1.12) brightness(0.72) blur(0);
        clip-path: polygon(0 0, 82% 0, 100% 100%, 16% 100%);
    }
    100% {
        opacity: 0.2;
        filter: saturate(0.62) contrast(1.18) brightness(0.66) blur(0);
        transform: translate3d(-25%, -50%, 0) scale(1.04) rotate(0deg);
    }
}

@keyframes introHeadlight {
    0%, 18% { opacity: 0; transform: translateX(-68%) skewX(-14deg); }
    31% { opacity: 0.86; }
    62% { opacity: 0.46; transform: translateX(46%) skewX(-14deg); }
    82% { opacity: 0.18; transform: translateX(72%) skewX(-14deg); }
    100% { opacity: 0; transform: translateX(92%) skewX(-14deg); }
}

@keyframes introRibbonsIn {
    to { opacity: 0.72; }
}

@keyframes introRibbonsOut {
    to { opacity: 0; }
}

@keyframes introRibbonMove {
    from { transform: skewX(-18deg) translate3d(-42vw, 0, 0); }
    to { transform: skewX(-18deg) translate3d(92vw, 0, 0); }
}

@keyframes introFlash {
    0%, 78% { opacity: 0; }
    82% { opacity: 0.62; }
    88%, 100% { opacity: 0; }
}

@keyframes introBrandIn {
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes introMonogramIn {
    to { opacity: 1; transform: translate3d(-50%, 0, 0) scale(1); }
}

@keyframes introMonogramPulse {
    from { box-shadow: 0 0 0 rgba(255, 122, 26, 0); }
    to { box-shadow: 0 0 32px rgba(255, 122, 26, 0.22); }
}

@keyframes introCardIn {
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes introPanelIn {
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes introPanelSweep {
    to { transform: translateX(115%); }
}

@keyframes introTitleHeadlight {
    0%, 8% {
        opacity: 0;
        transform: translateX(-54%) skewX(-13deg);
    }
    18% {
        opacity: 0.72;
    }
    34% {
        opacity: 0.18;
        transform: translateX(46%) skewX(-13deg);
    }
    45%, 58% {
        opacity: 0;
        transform: translateX(64%) skewX(-13deg);
    }
    59% {
        transform: translateX(-34%) skewX(-13deg);
    }
    70% {
        opacity: 0.34;
    }
    86% {
        opacity: 0.12;
        transform: translateX(42%) skewX(-13deg);
    }
    100% {
        opacity: 0;
        transform: translateX(58%) skewX(-13deg);
    }
}

@keyframes introGaugePulse {
    from { transform: rotate(-8deg) scale(0.96); filter: drop-shadow(0 0 0 rgba(255, 122, 26, 0)); }
    to { transform: rotate(16deg) scale(1.02); filter: drop-shadow(0 0 14px rgba(255, 122, 26, 0.36)); }
}

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

@keyframes introTitleIn {
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes motoPlateSweep {
    0%, 46% { transform: translateX(-112%); }
    72%, 100% { transform: translateX(112%); }
}

@media (min-width: 1025px) and (hover: hover) and (pointer: fine) {
    .section-shell {
        padding: clamp(30px, 3.8vw, 52px) 0;
    }

    .hero.section-shell {
        min-height: min(820px, 84svh);
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 30px);
        padding-bottom: max(8px, env(safe-area-inset-bottom));
    }

    .hero.section-shell + #tools.section-shell {
        padding-top: clamp(12px, 2vw, 26px);
    }

    .section-head {
        margin-bottom: clamp(14px, 2vw, 22px);
    }

    .section-head h2,
    .content-panel h2,
    .welfare-copy h2,
    .zhangxue-section h2 {
        margin-top: 8px;
    }

    .section-head p:not(.eyebrow) {
        margin-top: 8px;
    }

    .hero {
        min-height: min(820px, 84svh);
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 30px);
        padding-bottom: max(8px, env(safe-area-inset-bottom));
    }

    .intro-brand strong {
        font-size: clamp(28px, 5vw, 70px);
        line-height: 0.98;
    }

    .intro-title {
        left: clamp(230px, 18vw, 340px);
        right: clamp(470px, 34vw, 620px);
        bottom: clamp(82px, 10vh, 116px);
        width: auto;
        background:
            radial-gradient(ellipse at 32% 58%, rgba(246, 242, 226, 0.44) 0 38%, rgba(246, 242, 226, 0.18) 58%, transparent 80%);
        filter: drop-shadow(0 14px 28px rgba(245, 242, 226, 0.14));
        isolation: isolate;
    }

    .intro-title::before {
        z-index: 1;
        opacity: 0.28;
        mix-blend-mode: screen;
    }

    .intro-title::after {
        content: "";
        position: absolute;
        z-index: 0;
        inset: -34% -16% -24% -14%;
        pointer-events: none;
        background:
            linear-gradient(104deg, transparent 0 28%, rgba(255, 251, 230, 0.05) 38%, rgba(255, 248, 218, 0.5) 48%, rgba(255, 122, 26, 0.2) 56%, transparent 72%),
            radial-gradient(ellipse at 36% 56%, rgba(207, 235, 31, 0.14) 0 16%, rgba(255, 122, 26, 0.12) 32%, transparent 66%);
        filter: blur(1px);
        opacity: 0;
        transform: translateX(-54%) skewX(-13deg);
        animation: introTitleHeadlight 2.38s var(--ease-out) 1.16s forwards;
    }

    .intro-title span {
        position: relative;
        z-index: 2;
        color: rgba(21, 21, 18, 0.78);
        text-shadow:
            0 1px 0 rgba(255, 248, 226, 0.54),
            0 5px 18px rgba(245, 242, 226, 0.32);
    }

    .intro-title strong {
        position: relative;
        z-index: 2;
        color: rgba(12, 12, 10, 0.94);
        font-size: clamp(31px, 3.9vw, 54px);
        line-height: 1.06;
        text-shadow:
            0 1px 0 rgba(255, 248, 226, 0.72),
            0 10px 26px rgba(245, 242, 226, 0.34);
        text-wrap: balance;
    }

    .intro-dashboard {
        right: clamp(18px, 2.4vw, 36px);
        bottom: clamp(12px, 1.8vw, 24px);
        width: min(39vw, 500px);
        min-width: 390px;
        gap: 10px;
        padding: clamp(13px, 1.35vw, 17px);
        border-radius: 14px;
        border-color: rgba(207, 235, 31, 0.42);
        background:
            linear-gradient(90deg, rgba(207, 235, 31, 0.12), transparent 22%, transparent 78%, rgba(255, 122, 26, 0.1)),
            linear-gradient(135deg, rgba(255, 248, 218, 0.055), rgba(255, 248, 218, 0.018) 46%, rgba(207, 235, 31, 0.035)),
            repeating-linear-gradient(115deg, transparent 0 12px, rgba(207, 235, 31, 0.045) 13px, transparent 14px);
        backdrop-filter: blur(2px) saturate(116%);
        -webkit-backdrop-filter: blur(2px) saturate(116%);
        box-shadow:
            0 0 0 1px rgba(255, 122, 26, 0.18),
            0 0 38px rgba(207, 235, 31, 0.2),
            0 0 72px rgba(255, 122, 26, 0.12),
            inset 0 0 0 1px rgba(255, 248, 218, 0.08);
    }

    .intro-dashboard::after {
        opacity: 0.46;
        mix-blend-mode: screen;
    }

    .intro-dashboard::before {
        opacity: 0.42;
        background:
            linear-gradient(90deg, transparent, rgba(207, 235, 31, 0.22), transparent),
            linear-gradient(110deg, transparent 0 34%, rgba(255, 255, 255, 0.22), transparent 58% 100%);
    }

    .intro-cluster {
        grid-template-columns: 138px minmax(0, 1fr);
        gap: 14px;
    }

    .intro-tach {
        width: 138px;
    }

    .intro-tach-mark {
        font-size: 9px;
        color: rgba(255, 252, 238, 0.88);
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.92), 0 0 9px rgba(207, 235, 31, 0.18);
    }

    .intro-tach-mark.mark-a { left: 20px; bottom: 31px; }
    .intro-tach-mark.mark-b { left: 30px; top: 25px; }
    .intro-tach-mark.mark-c { right: 30px; top: 25px; }
    .intro-tach-mark.mark-d { right: 16px; bottom: 33px; }

    .intro-tach-label {
        bottom: 24px;
        font-size: 8px;
        color: rgba(255, 252, 238, 0.78);
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.9);
    }

    .intro-needle {
        height: 3px;
    }

    .intro-needle-cap {
        width: 14px;
        height: 14px;
    }

    .intro-status-strip {
        gap: 6px;
    }

    .intro-status-strip span {
        min-width: 36px;
        padding: 5px 7px;
        font-size: 8.5px;
        border-color: rgba(207, 235, 31, 0.3);
        color: rgba(255, 252, 238, 0.96);
        background: rgba(12, 12, 10, 0.28);
        box-shadow: inset 0 0 14px rgba(207, 235, 31, 0.12), 0 0 14px rgba(207, 235, 31, 0.12), 0 0 12px rgba(12, 12, 10, 0.18);
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.95), 0 0 12px rgba(207, 235, 31, 0.32);
    }

    .intro-kicker,
    .intro-progress-copy,
    .intro-checks span,
    .intro-speed-box strong,
    .intro-gear-box strong {
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.98), 0 3px 12px rgba(0, 0, 0, 0.76), 0 0 18px rgba(207, 235, 31, 0.28);
    }

    .intro-kicker {
        color: #f4ff3d;
        text-shadow:
            0 1px 2px rgba(0, 0, 0, 0.95),
            0 0 8px rgba(207, 235, 31, 0.72),
            0 0 24px rgba(255, 122, 26, 0.22);
    }

    .intro-kicker::after {
        color: #f8ffd9;
        border-color: rgba(207, 235, 31, 0.44);
        background: rgba(207, 235, 31, 0.14);
        box-shadow: 0 0 16px rgba(207, 235, 31, 0.2), inset 0 0 10px rgba(207, 235, 31, 0.08);
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.88), 0 0 10px rgba(207, 235, 31, 0.42);
    }

    .intro-progress-copy strong {
        background: none;
        color: #fff8e8;
        -webkit-text-stroke: 1px rgba(0, 0, 0, 0.28);
        text-shadow:
            0 2px 0 rgba(0, 0, 0, 0.62),
            0 0 12px rgba(207, 235, 31, 0.2),
            0 0 22px rgba(255, 122, 26, 0.16);
        transform: skewX(-5deg);
        filter: drop-shadow(0 5px 7px rgba(0, 0, 0, 0.28));
    }

    .intro-progress-copy small,
    .intro-progress-copy::after,
    .intro-speed-box small,
    .intro-gear-box small,
    .intro-speed-box span,
    .intro-gear-box span {
        color: rgba(255, 252, 238, 0.88);
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.94), 0 0 9px rgba(207, 235, 31, 0.22);
    }

    .intro-progress-copy small {
        color: #fff8e8;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.9), 0 0 10px rgba(255, 122, 26, 0.28);
        transform: skewX(-5deg);
    }

    .intro-checks span {
        color: rgba(255, 252, 238, 0.88);
        border-color: rgba(255, 248, 218, 0.2);
        background: rgba(12, 12, 10, 0.2);
        box-shadow: inset 0 0 12px rgba(207, 235, 31, 0.06);
    }

    .intro-tach {
        background:
            radial-gradient(circle at 50% 50%, rgba(207, 235, 31, 0.08) 0 22%, rgba(255, 122, 26, 0.045) 23% 46%, transparent 47%),
            rgba(255, 248, 218, 0.035);
        box-shadow:
            inset 0 0 0 1px rgba(207, 235, 31, 0.16),
            0 0 22px rgba(207, 235, 31, 0.18),
            0 0 42px rgba(255, 122, 26, 0.1);
    }

    .intro-progress-line {
        background: rgba(255, 248, 218, 0.18);
        box-shadow: 0 0 18px rgba(207, 235, 31, 0.12);
    }

    .intro-speed-box,
    .intro-gear-box {
        min-height: 44px;
        padding: 8px 9px;
        border-radius: 9px;
        border-color: rgba(207, 235, 31, 0.32);
        background:
            linear-gradient(120deg, rgba(207, 235, 31, 0.1), transparent 48%),
            rgba(12, 12, 10, 0.24);
        box-shadow: inset 0 0 18px rgba(207, 235, 31, 0.06), 0 0 16px rgba(0, 0, 0, 0.16);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .intro-speed-box strong,
    .intro-gear-box strong {
        font-size: 30px;
        background: none;
        color: #fff8e8;
        -webkit-text-stroke: 0.45px rgba(0, 0, 0, 0.28);
        filter: none;
    }

    .intro-gear-box strong {
        background: none;
        color: #dbff2e;
        filter: none;
    }

    .intro-progress-line {
        height: 6px;
    }

    .hero .container {
        width: min(100% - 44px, 1320px);
    }

    .hero-copy {
        width: 100%;
        display: grid;
        grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.78fr);
        grid-template-areas:
            "eyebrow media"
            "title media"
            "lead media"
            "links media"
            "tags media"
            "plate media"
            "actions media";
        column-gap: clamp(24px, 3.8vw, 58px);
        align-items: center;
    }

    .hero .eyebrow {
        grid-area: eyebrow;
        justify-self: start;
        margin-bottom: 2px;
    }

    .hero-title {
        grid-area: title;
        max-width: 760px;
        margin-top: 12px;
        font-size: clamp(48px, 6vw, 82px);
        line-height: 0.96;
    }

    .hero-title span {
        margin-top: 10px;
        font-size: clamp(28px, 3.45vw, 46px);
        line-height: 1.04;
    }

    .hero-lead {
        grid-area: lead;
        max-width: 720px;
        margin-top: 18px;
        font-size: clamp(16px, 1.35vw, 20px);
    }

    .hero-social-links {
        grid-area: links;
        width: min(100%, 600px);
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-top: 18px;
    }

    .profile-links.hero-social-links a {
        min-height: 40px;
        padding: 8px 10px;
        font-size: 12px;
    }

    .hero-bike-cinema {
        grid-area: media;
        justify-self: end;
        width: min(100%, 430px);
        height: clamp(400px, 54vh, 560px);
        margin: 0;
        align-self: center;
        background: var(--black-carbon);
        box-shadow: 0 26px 88px rgba(0, 0, 0, 0.44), 0 0 48px rgba(255, 122, 26, 0.12);
    }

    .hero-bike-cinema img {
        object-fit: cover;
        object-position: 56% 46%;
        transform: scale(1.015);
    }

    .hero-bike-cinema figcaption {
        bottom: 14px;
    }

    .hero .scroll-cue {
        left: 50%;
        bottom: 10px;
        width: 28px;
        height: 44px;
        opacity: 0.78;
    }

    .tag-stack {
        grid-area: tags;
        margin-top: 18px;
    }

    .moto-plate {
        grid-area: plate;
        max-width: 720px;
        margin-top: 18px;
    }

    .hero-actions {
        grid-area: actions;
        margin-top: 18px;
    }

    .tool-stack {
        gap: 14px;
    }

    .responsive-grid {
        gap: 12px;
        margin-bottom: 14px;
    }

    .stat-grid {
        gap: 12px;
    }

    .source-note {
        margin-top: 18px;
    }

    .notice-bar {
        margin-bottom: 14px;
    }

    .message-grid {
        gap: 16px;
    }

    .story-grid {
        gap: 14px;
    }

    .story-card {
        gap: clamp(12px, 2vw, 18px);
        padding: clamp(12px, 1.6vw, 16px);
    }

    .story-card img {
        min-height: 220px;
    }

    .split-layout {
        gap: clamp(18px, 3.2vw, 34px);
    }

    .welfare-section {
        min-height: auto;
    }

    .welfare-layout {
        gap: clamp(18px, 3vw, 42px);
    }

    .welfare-copy h2,
    .welfare-copy > p {
        margin-top: 12px;
    }

    .welfare-copy .btn {
        margin-top: 18px;
    }

    .welfare-pass-row {
        margin-top: 16px;
    }

    .welfare-card {
        gap: 14px;
        padding: clamp(16px, 2vw, 24px);
    }

    .content-panel {
        gap: 14px;
    }

    .game-strip {
        gap: 12px;
        padding-top: 14px;
    }

    .album-container {
        padding: 6px 0 14px;
    }

    .album-list {
        gap: 14px;
    }
}

@media (min-width: 1280px) and (hover: hover) and (pointer: fine) {
    .hero,
    .hero.section-shell {
        min-height: min(840px, 84svh);
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 34px);
        padding-bottom: max(10px, env(safe-area-inset-bottom));
    }

    .intro-dashboard {
        right: clamp(20px, 2.2vw, 40px);
        bottom: clamp(14px, 1.8vw, 28px);
        width: min(37vw, 520px);
        min-width: 420px;
    }

    .intro-cluster {
        grid-template-columns: 148px minmax(0, 1fr);
    }

    .intro-tach {
        width: 148px;
    }

    .intro-tach-mark.mark-a { left: 22px; bottom: 34px; }
    .intro-tach-mark.mark-b { left: 32px; top: 27px; }
    .intro-tach-mark.mark-c { right: 32px; top: 27px; }
    .intro-tach-mark.mark-d { right: 18px; bottom: 36px; }

    .intro-speed-box strong,
    .intro-gear-box strong {
        font-size: 34px;
    }

    .hero .container {
        width: min(100% - 80px, 1440px);
    }

    .hero-copy {
        grid-template-columns: minmax(0, 0.9fr) minmax(420px, 0.72fr);
        column-gap: clamp(42px, 5.4vw, 92px);
    }

    .hero-title {
        max-width: 820px;
        margin-top: 14px;
        font-size: clamp(56px, 6.1vw, 104px);
        line-height: 0.95;
    }

    .hero-title span {
        margin-top: 12px;
        font-size: clamp(32px, 3.65vw, 58px);
        line-height: 1.02;
    }

    .hero-lead {
        max-width: 760px;
        margin-top: 22px;
        font-size: clamp(17px, 1.45vw, 22px);
    }

    .hero-social-links {
        width: min(100%, 640px);
        gap: 10px;
        margin-top: 18px;
    }

    .profile-links.hero-social-links a {
        min-height: 40px;
        padding: 8px 10px;
        font-size: 13px;
    }

    .hero-bike-cinema {
        width: min(100%, 460px);
        height: clamp(430px, 54vh, 580px);
    }

    .tag-stack,
    .moto-plate,
    .hero-actions {
        margin-top: 18px;
    }
}

@media (max-width: 1120px) {
    .nav-links {
        gap: 12px;
    }

    .nav-link {
        font-size: 12px;
    }

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

@media (max-width: 1024px) {
    :root {
        --nav-height: 72px;
    }

    .container {
        width: min(100% - 36px, 920px);
    }

    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
        flex: 0 0 auto;
    }

    .hero-grid,
    .split-layout,
    .about-layout,
    .welfare-layout {
        grid-template-columns: 1fr;
    }

    .welfare-copy {
        max-width: 720px;
    }

    .welfare-card {
        justify-self: start;
    }

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

    .message-grid {
        grid-template-columns: 1fr;
    }

    .intro-photo {
        width: min(72vw, 700px);
    }

    .intro-dashboard {
        left: auto;
        right: 24px;
        bottom: 26px;
        width: min(44vw, 390px);
        min-width: 280px;
    }

    .intro-title {
        left: 24px;
        right: auto;
        bottom: clamp(220px, 32svh, 284px);
        width: min(54vw, 520px);
    }
}

@media (max-width: 1024px) and (hover: none), (max-width: 1024px) and (pointer: coarse) {
    body {
        font-size: 15px;
    }

    .container {
        width: min(100% - 30px, 680px);
    }

    .section-shell {
        padding: 52px 0;
    }

    .hero {
        min-height: auto;
        align-items: start;
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 34px);
        padding-bottom: 30px;
    }

    .hero-grid {
        gap: 24px;
    }

    .hero-title {
        font-size: clamp(38px, 12vw, 68px);
    }

    .hero-title span {
        font-size: clamp(27px, 8.6vw, 46px);
        line-height: 1.08;
    }

    .hero-bike-cinema {
        margin-top: 18px;
        height: clamp(132px, 38vw, 178px);
    }

    .scroll-cue {
        display: none;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .container {
        width: min(100% - 30px, 680px);
    }

    .section-shell {
        padding: 52px 0;
    }

    .hero {
        align-items: start;
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 34px);
        padding-bottom: 30px;
    }

    .hero-grid {
        gap: 24px;
    }

    .hero-title {
        font-size: clamp(38px, 12vw, 68px);
    }

    .hero-title span {
        font-size: clamp(27px, 8.6vw, 46px);
        line-height: 1.08;
    }

    .cursor-glow {
        display: none;
    }

    .hero-actions .btn {
        flex: 1 1 180px;
    }

    .scroll-cue {
        display: none;
    }

    .welfare-layout {
        align-items: start;
        gap: 24px;
    }

    .welfare-copy h2 {
        font-size: clamp(42px, 13vw, 72px);
        line-height: 0.96;
    }

    .welfare-copy {
        padding-left: 0;
    }

    .welfare-copy::before {
        display: none;
    }

    .welfare-pass-row {
        grid-template-columns: 1fr;
        max-width: none;
    }

    .intro-brand strong {
        font-size: clamp(30px, 10vw, 48px);
    }

    .intro-brand span {
        font-size: 9px;
    }

    .intro-monogram {
        display: none;
    }

    .intro-photo {
        width: min(112vw, 470px);
        height: 82svh;
        max-height: none;
    }

    .intro-photo-a {
        object-position: 50% 55%;
        clip-path: polygon(7% 0, 100% 0, 93% 100%, 0 100%);
    }

    .intro-photo-b {
        width: min(118vw, 520px);
        object-position: 54% 52%;
    }

    .intro-marquee {
        bottom: 150px;
        font-size: clamp(48px, 18vw, 82px);
    }

    .intro-race-card {
        display: none;
    }

    .intro-race-card strong {
        padding: 10px 0;
        font-size: 13px;
    }

    .intro-dashboard {
        left: 15px;
        right: 15px;
        bottom: max(14px, env(safe-area-inset-bottom));
        width: auto;
        min-width: 0;
        padding: 14px;
        gap: 10px;
    }

    .intro-cluster {
        grid-template-columns: 106px minmax(0, 1fr);
        gap: 10px;
    }

    .intro-tach {
        width: 106px;
    }

    .intro-speed-box,
    .intro-gear-box {
        padding: 7px 8px;
    }

    .intro-speed-box strong,
    .intro-gear-box strong {
        font-size: 23px;
    }

    .intro-status-strip span {
        min-width: 28px;
        padding: 4px 5px;
        font-size: 7.5px;
    }

    .intro-progress-copy strong {
        font-size: clamp(38px, 13vw, 54px);
    }

    .intro-checks {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .intro-checks span {
        min-height: 28px;
        padding: 7px 9px;
        font-size: 9px;
    }

    .intro-title {
        left: 15px;
        right: 15px;
        top: clamp(122px, 22svh, 176px);
        bottom: auto;
        width: auto;
        transform: translate3d(0, 12px, 0);
    }

    .intro-title span {
        font-size: 9px;
        letter-spacing: 0.12em;
    }

    .intro-title strong {
        margin-top: 6px;
        font-size: clamp(26px, 8vw, 40px);
        line-height: 1.05;
    }

    .two-col,
    .four-col,
    .load-grid,
    .result-grid,
    .benefit-grid {
        grid-template-columns: 1fr;
    }

    .stat-grid {
        gap: 12px;
    }

    .story-card {
        grid-template-columns: 1fr;
    }

    .story-card img {
        min-height: 220px;
        aspect-ratio: 16 / 10;
    }

    .media-panel,
    .media-panel img {
        min-height: 300px;
    }

    .welfare-section {
        min-height: auto;
    }

    .welfare-bg img {
        object-position: 50% 50%;
        filter: saturate(0.92) contrast(1.18) brightness(0.58);
        opacity: 0.74;
    }

    .game-strip {
        align-items: stretch;
        flex-direction: column;
    }

    .game-strip .btn {
        width: 100%;
    }

    .about-layout .contact-links {
        grid-template-columns: 1fr;
    }

    .album-item {
        width: min(74vw, 300px);
    }
}

@media (max-width: 640px) {
    .nav-inner {
        width: min(100% - 26px, 620px);
    }

    .hero-marquee {
        display: none;
    }

    .brand-copy small {
        display: none;
    }

    .mobile-menu {
        width: min(100% - 24px, 520px);
        grid-template-columns: 1fr 1fr;
    }

    .hero-title {
        margin-top: 12px;
    }

    .hero-lead {
        margin-top: 12px;
        font-size: 15px;
        line-height: 1.58;
    }

    .hero-bike-cinema {
        margin-top: 12px;
        height: clamp(132px, 38vw, 178px);
    }

    .hero-bike-cinema figcaption {
        align-items: start;
        flex-direction: column;
    }

    .hero-bike-cinema strong {
        text-align: left;
        font-size: 11px;
    }

    .tag-stack {
        margin-top: 12px;
        gap: 8px;
    }

    .tag-stack span {
        min-height: 32px;
        font-size: 12px;
    }

    .moto-plate {
        margin-top: 12px;
    }

    .hero-actions {
        margin-top: 12px;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }

    .card-head,
    .list-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .status-chip {
        white-space: normal;
    }
}

@media (max-width: 480px) {
    .container {
        width: min(100% - 24px, 440px);
    }

    .section-shell {
        padding: 38px 0;
    }

    .hero {
        min-height: auto;
        padding-bottom: 24px;
    }

    .avatar-button {
        width: 42px;
        height: 42px;
        min-height: 42px;
    }

    .brand-copy strong {
        font-size: 14px;
    }

    .menu-toggle {
        width: 44px;
        height: 44px;
        min-height: 44px;
    }

    .hero-title {
        font-size: clamp(32px, 12.6vw, 46px);
        line-height: 1.02;
    }

    .hero-title span {
        font-size: clamp(23px, 7.2vw, 30px);
    }

    .hero-social-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: 9px;
        margin-top: 12px;
    }

    .hero-actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 9px;
        margin-top: 12px;
    }

    .moto-plate {
        grid-template-columns: 1fr;
    }

    .moto-plate strong {
        justify-self: stretch;
        text-align: left;
    }

    .intro-brand {
        top: 12px;
        left: 12px;
        transform: translate3d(0, 0, 0);
    }

    .intro-brand strong {
        font-size: clamp(29px, 10vw, 38px);
    }

    .intro-photo {
        width: min(126vw, 430px);
        height: 80svh;
    }

    .intro-marquee {
        bottom: 136px;
        font-size: clamp(42px, 18vw, 70px);
    }

    .intro-race-card {
        display: none;
    }

    .intro-race-card span,
    .intro-race-card small {
        font-size: 7px;
    }

    .intro-race-card strong {
        padding: 8px 0;
        font-size: 11px;
    }

    .intro-dashboard {
        left: 12px;
        right: 12px;
        bottom: max(10px, env(safe-area-inset-bottom));
        padding: 12px;
        gap: 8px;
        transform: translate3d(0, 12px, 0);
    }

    .intro-cluster {
        grid-template-columns: 92px minmax(0, 1fr);
        gap: 8px;
    }

    .intro-tach {
        width: 92px;
    }

    .intro-tach-label {
        display: none;
    }

    .intro-tach-mark {
        font-size: 7px;
    }

    .intro-speed-box,
    .intro-gear-box {
        gap: 5px;
        padding: 6px 7px;
    }

    .intro-speed-box strong,
    .intro-gear-box strong {
        font-size: 20px;
    }

    .intro-gear-box span {
        display: none;
    }

    .intro-kicker {
        font-size: 9px;
    }

    .intro-progress-copy strong {
        font-size: clamp(34px, 12vw, 46px);
    }

    .intro-dashboard::after {
        top: 10px;
        right: 10px;
        width: 68px;
        opacity: 0.38;
    }

    .intro-progress-copy::after {
        margin-left: 5px;
        font-size: 8px;
        letter-spacing: 0.1em;
    }

    .intro-title {
        left: 12px;
        right: 12px;
        top: clamp(112px, 21svh, 150px);
        bottom: auto;
        transform: translate3d(0, 12px, 0);
    }

    .intro-title span {
        font-size: 8.5px;
        letter-spacing: 0.1em;
    }

    .intro-title strong {
        font-size: clamp(24px, 8.4vw, 34px);
    }

    .btn {
        width: 100%;
        min-height: 48px;
        padding-inline: 14px;
    }

    .profile-links,
    .contact-links {
        display: grid;
        grid-template-columns: 1fr;
    }

    .metal-card,
    .content-panel {
        border-radius: 18px;
        padding: 16px;
    }

    .segment-control {
        width: 100%;
    }

    .segment-button {
        padding-inline: 8px;
        font-size: 12px;
    }

    .field,
    .field-like {
        min-height: 46px;
        padding-inline: 11px;
    }

    .notice-bar {
        font-size: 14px;
    }

    .mobile-menu.is-open {
        grid-template-columns: 1fr;
    }

    .album-list {
        gap: 12px;
    }

    .album-item {
        width: min(78vw, 270px);
    }

    .reveal {
        transform: translate3d(0, 16px, 0);
    }
}

@media (max-width: 360px) {
    .container,
    .nav-inner,
    .mobile-menu {
        width: min(100% - 20px, 340px);
    }

    .brand {
        gap: 8px;
    }

    .brand-copy strong {
        max-width: 120px;
    }

    .hero-title {
        font-size: clamp(30px, 11.6vw, 38px);
    }

    .hero-title span {
        font-size: clamp(21px, 7.4vw, 27px);
    }

    .intro-dashboard {
        left: 10px;
        right: 10px;
        bottom: max(10px, env(safe-area-inset-bottom));
        padding: 10px;
        gap: 7px;
    }

    .intro-cluster {
        grid-template-columns: 82px minmax(0, 1fr);
    }

    .intro-tach {
        width: 82px;
    }

    .intro-status-strip {
        gap: 4px;
    }

    .intro-status-strip span {
        min-width: 24px;
        padding: 3px 4px;
        font-size: 7px;
    }

    .intro-speed-box small,
    .intro-gear-box small,
    .intro-speed-box span,
    .intro-gear-box span {
        font-size: 7px;
    }

    .intro-speed-box strong,
    .intro-gear-box strong {
        font-size: 18px;
    }

    .intro-brand {
        left: 10px;
    }

    .intro-brand strong {
        font-size: 28px;
    }

    .intro-progress-copy strong {
        font-size: 34px;
    }

    .intro-progress-copy::after {
        display: none;
    }

    .intro-checks span {
        min-height: 24px;
        padding: 5px 6px;
        font-size: 8px;
    }

    .intro-title {
        left: 10px;
        right: 10px;
        top: clamp(104px, 20svh, 134px);
        bottom: auto;
    }

    .intro-title strong {
        font-size: clamp(22px, 8.6vw, 29px);
    }

    .intro-skip {
        right: 10px;
        min-height: 38px;
        padding: 7px 10px;
    }

    .eyebrow {
        font-size: 9px;
        letter-spacing: 0.05em;
        padding-inline: 8px;
    }

    .metal-card,
    .content-panel,
    .welfare-card,
    .story-card,
    .message-item,
    .stat-card {
        padding: 14px;
    }

    .section-head h2,
    .content-panel h2,
    .welfare-copy h2,
    .zhangxue-section h2 {
        font-size: clamp(28px, 10vw, 36px);
    }

    .result-card strong {
        font-size: 21px;
    }
}

@media (max-width: 768px) and (max-height: 640px) {
    .intro-brand strong {
        font-size: clamp(26px, 8vw, 36px);
    }

    .intro-title {
        top: max(108px, calc(env(safe-area-inset-top) + 96px));
    }

    .intro-title span {
        font-size: 8px;
    }

    .intro-title strong {
        font-size: clamp(21px, 6.8vw, 30px);
        line-height: 1.06;
    }

    .intro-dashboard {
        padding: 10px;
        gap: 7px;
    }

    .intro-dashboard::after {
        width: 58px;
        opacity: 0.24;
    }

    .intro-progress-copy strong {
        font-size: clamp(30px, 10vw, 42px);
    }

    .intro-progress-copy::after {
        display: none;
    }

    .intro-checks {
        display: none;
    }
}

@media (max-width: 768px) and (hover: none), (max-width: 768px) and (pointer: coarse) {
    .site-nav::before {
        opacity: 0.64;
    }

    .brand {
        max-width: calc(100vw - 104px);
    }

    .brand-copy strong {
        max-width: 180px;
        line-height: 1.18;
    }

    .hero {
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 48px);
    }

    .hero .eyebrow {
        max-width: min(100%, calc(100vw - 52px));
        min-height: 28px;
        padding: 5px 9px;
        font-size: clamp(9px, 2.6vw, 11px);
        line-height: 1.2;
        letter-spacing: 0.06em;
        white-space: normal;
    }

    .intro-brand {
        top: max(10px, calc(env(safe-area-inset-top) + 8px));
        left: 14px;
        gap: 2px;
        max-width: min(58vw, 220px);
    }

    .intro-brand strong {
        font-size: clamp(25px, 8.8vw, 34px);
        line-height: 0.94;
    }

    .intro-brand span {
        font-size: 8px;
        letter-spacing: 0.12em;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    .site-nav::before {
        opacity: 0.72;
    }

    .brand {
        max-width: calc(100vw - 104px);
        gap: 9px;
    }

    .brand-copy strong {
        max-width: 160px;
        font-size: 14px;
        line-height: 1.16;
    }

    .hero,
    .hero.section-shell {
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 4px);
    }

    .hero .eyebrow {
        max-width: min(100%, calc(100vw - 44px));
        min-height: 28px;
        padding: 5px 9px;
        font-size: clamp(8.5px, 2.55vw, 10.5px);
        line-height: 1.22;
        letter-spacing: 0.04em;
        white-space: normal;
    }

    .intro-brand {
        top: max(10px, calc(env(safe-area-inset-top) + 8px));
        left: 14px;
        gap: 2px;
        max-width: min(56vw, 210px);
    }

    .intro-brand strong {
        font-size: clamp(24px, 8.2vw, 32px);
        line-height: 1.02;
    }

    .intro-brand span {
        font-size: 7.5px;
        letter-spacing: 0.11em;
    }
}

@media (max-width: 430px) {
    :root {
        --nav-height: 60px;
    }

    .hero,
    .hero.section-shell {
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top));
    }

    .hero .eyebrow {
        max-width: calc(100vw - 36px);
    }

    .intro-brand {
        max-width: 190px;
    }

    .intro-brand strong {
        font-size: clamp(23px, 8vw, 30px);
        line-height: 1.02;
    }
}

@media (max-width: 360px) {
    .brand-copy strong {
        max-width: 108px;
        font-size: 13px;
    }

    .hero,
    .hero.section-shell {
        padding-top: calc(var(--nav-height) + env(safe-area-inset-top) + 2px);
    }

    .intro-brand strong {
        font-size: 24px;
        line-height: 1.02;
    }
}

@media (hover: none), (pointer: coarse) {
    .cursor-glow {
        display: none;
    }

    .metal-card:hover,
    .stat-card:hover,
    .message-item:hover,
    .story-card:hover,
    .btn:hover,
    .profile-links a:hover,
    .contact-links a:hover {
        transform: none;
    }

    .metal-card::before,
    .stat-card::before,
    .message-item::before,
    .story-card::before,
    .welfare-card::before {
        display: none;
    }

    .media-panel:hover img,
    .album-item:hover img {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1 !important;
        transform: none !important;
    }

    .cursor-glow,
    .speed-field,
    .scan-field,
    .ignition-intro {
        display: none !important;
    }
}