/* ============================================================
   vip-cyber-red — 电红赛博竞技舱 design system
   Carbon black #0b0a0e · electric red #e11d48 · cold white
   Hard edges, 45-degree oblique cuts, outlined digits, scanlines
   ============================================================ */

:root {
    --ink: #0b0a0e;            /* carbon black base */
    --ink-2: #121016;          /* raised panel */
    --ink-3: #1a1720;          /* card panel */
    --red: #e11d48;            /* electric red */
    --red-hi: #fb2b57;         /* red highlight */
    --red-soft: rgba(225, 29, 72, 0.16);
    --white: #f3f1f6;          /* cold white */
    --grey: #9d97ab;           /* muted text */
    --line: rgba(243, 241, 246, 0.12);
    --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
        system-ui, -apple-system, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--ink);
    color: var(--white);
    font-family: var(--font);
    line-height: 1.75;
    -webkit-text-size-adjust: 100%;
}

img {
    max-width: 100%;
    display: block;
}

.wrap {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

main {
    padding-top: 64px;
}

/* ---------- scanline + grid textures ---------- */

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: repeating-linear-gradient(90deg,
        rgba(225, 29, 72, 0.10) 0 1px,
        transparent 1px 52px),
        repeating-linear-gradient(0deg,
        rgba(243, 241, 246, 0.05) 0 1px,
        transparent 1px 52px);
    transform: perspective(420px) rotateX(62deg);
    transform-origin: 50% 100%;
    opacity: 0.5;
}

section {
    position: relative;
}

section::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image: repeating-linear-gradient(180deg,
        rgba(255, 255, 255, 0.018) 0 1px,
        transparent 1px 4px);
}

/* ---------- header / navigation ---------- */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(11, 10, 14, 0.96);
    border-bottom: 1px solid var(--line);
}

header.scrolled {
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
}

.hdr {
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 64px;
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 10px;
    text-decoration: none;
    color: var(--white);
    white-space: nowrap;
}

.b-flag {
    font-weight: 900;
    font-size: 22px;
    letter-spacing: 0.5px;
    background: linear-gradient(180deg, var(--red-hi), var(--red));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.b-sub {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--grey);
    border-left: 1px solid rgba(225, 29, 72, 0.7);
    padding-left: 10px;
}

.mainnav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.mainnav a {
    color: var(--grey);
    text-decoration: none;
    font-size: 15px;
    padding: 8px 14px;
    position: relative;
}

.mainnav a + a::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 1px;
    height: 14px;
    transform: translateY(-50%);
    background: var(--line);
}

.mainnav a:hover,
.mainnav a.on {
    color: var(--white);
}

.mainnav a.on::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 2px;
    height: 2px;
    background: var(--red);
    transform: skewX(-24deg);
}

.pill {
    display: inline-flex;
    align-items: center;
    background: var(--red);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    padding: 9px 18px;
    margin-left: 6px;
    clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%, 0 8px);
    white-space: nowrap;
}

.pill:hover {
    background: var(--red-hi);
}

.menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    background: var(--ink-2);
    color: var(--white);
    font-size: 17px;
    cursor: pointer;
}

@media (max-width: 900px) {
    .b-sub {
        display: none;
    }
    .menu-btn {
        display: inline-flex;
        margin-left: auto;
    }
    .mainnav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        margin: 0;
        flex-direction: column;
        align-items: stretch;
        background: var(--ink-2);
        border-bottom: 1px solid var(--red);
        display: none;
    }
    .mainnav a {
        padding: 14px 20px;
        border-top: 1px solid var(--line);
    }
    .mainnav a + a::before {
        display: none;
    }
    .mainnav a.on::after {
        display: none;
    }
    header.nav-open .mainnav {
        display: flex;
    }
    .hdr .pill {
        display: none;
    }
}

/* ---------- buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 26px;
    font-weight: 800;
    font-size: 16px;
    text-decoration: none;
    letter-spacing: 1px;
}

.btn-red {
    background: var(--red);
    color: #fff;
    clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px,
        100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.btn-red:hover {
    background: var(--red-hi);
}

.btn-ghost {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(225, 29, 72, 0.9);
}

.btn-ghost:hover {
    background: var(--red-soft);
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 22px;
}

/* ---------- shared type helpers ---------- */

.eyebrow {
    color: var(--red-hi);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin: 0 0 14px;
}

.section-head {
    margin-bottom: 26px;
}

.section-head h3 {
    margin: 0 0 6px;
    font-size: 26px;
    line-height: 1.4;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-head h3 i {
    color: var(--red);
    font-size: 20px;
}

.section-head h3::after {
    content: "";
    flex: 1;
    max-width: 90px;
    height: 3px;
    background: linear-gradient(90deg, var(--red), transparent);
    transform: skewX(-28deg);
    margin-left: 6px;
}

.section-head p {
    color: var(--grey);
    margin: 0;
    max-width: 720px;
}

.rk-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 1px;
    color: var(--red-hi);
    border: 1px solid rgba(225, 29, 72, 0.55);
    padding: 1px 8px;
    white-space: nowrap;
}

/* ---------- hero ---------- */

.hero {
    background: linear-gradient(135deg, #0b0a0e 0%, #171018 60%, #1a0f14 100%);
    overflow: hidden;
}

.hero-in {
    position: relative;
    display: grid;
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 60px;
    padding-bottom: 64px;
}

.hero-copy {
    position: relative;
    z-index: 2;
    max-width: 640px;
}

.hero-copy h2 {
    margin: 0 0 14px;
    font-size: clamp(28px, 6vw, 46px);
    line-height: 1.25;
    letter-spacing: 1px;
}

.hero-copy p {
    color: var(--grey);
    margin: 0 0 10px;
}

.command-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.command-tags span {
    font-size: 13px;
    color: var(--white);
    background: var(--red-soft);
    border-left: 2px solid var(--red);
    padding: 4px 12px;
    letter-spacing: 1px;
}

.note-line {
    font-size: 13px;
    color: var(--grey);
    margin-top: 16px;
}

.hero-shot {
    position: relative;
    z-index: 2;
    margin: 0;
    align-self: center;
    justify-self: center;
    width: 100%;
    max-width: 420px;
}

.hero-shot::before {
    content: "";
    position: absolute;
    inset: -12px 18px 18px -12px;
    border: 1px solid rgba(225, 29, 72, 0.6);
    clip-path: polygon(0 12%, 100% 0, 100% 100%, 0 82%);
    z-index: -1;
}

.hero-shot img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    clip-path: polygon(16% 0, 100% 0, 84% 100%, 0 100%);
    filter: saturate(1.08) contrast(1.04);
}

.ghost-num {
    position: absolute;
    right: 4%;
    bottom: -18px;
    z-index: 1;
    font-size: clamp(110px, 20vw, 210px);
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 2px rgba(225, 29, 72, 0.35);
    letter-spacing: -6px;
    pointer-events: none;
    user-select: none;
}

/* ---------- arena / ranking list ---------- */

.arena {
    padding: 64px 0 40px;
    background:
        linear-gradient(rgba(18, 16, 22, 0.92), rgba(11, 10, 14, 0.98)),
        var(--ink);
}

.arena-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    align-items: center;
}

.rank {
    list-style: none;
    margin: 0;
    padding: 0;
    counter-reset: rank;
}

.rank li {
    counter-increment: rank;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 16px;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--ink-2), var(--ink-3));
    border-left: 3px solid var(--red);
}

.rank li::before {
    content: counter(rank);
    font-size: 30px;
    font-weight: 900;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--red);
    min-width: 42px;
}

.rank li i {
    color: var(--red-hi);
    width: 18px;
    text-align: center;
}

.rk-name {
    flex: 1;
    font-weight: 700;
    font-size: 17px;
}

.arena-fig {
    margin: 0;
}

.arena-fig img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    clip-path: polygon(0 0, 100% 0, calc(100% - 26px) 100%, 0 100%);
}

.arena-fig figcaption {
    color: var(--grey);
    font-size: 14px;
    padding-top: 10px;
    padding-left: 6px;
    border-left: 2px solid var(--red);
}

/* ---------- versus ---------- */

.versus {
    padding: 54px 0;
}

.vs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

.vs-card {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 12px;
    align-items: stretch;
    background: var(--ink-2);
    border: 1px solid var(--line);
}

.f-side {
    padding: 20px;
}

.f-side + .vs-tag {
    display: flex;
    align-items: center;
    justify-content: center;
}

.vs-tag {
    background: var(--red);
    color: #fff;
    font-weight: 900;
    font-size: 18px;
    padding: 10px 12px;
    align-self: center;
    clip-path: polygon(4px 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}

.s-tag {
    font-size: 11px;
    color: var(--red-hi);
    letter-spacing: 2px;
}

.f-side h4 {
    margin: 6px 0 8px;
    font-size: 19px;
}

.f-side p {
    margin: 0;
    color: var(--grey);
    font-size: 14px;
}

/* ---------- playstyle cards ---------- */

.playstyle {
    padding: 54px 0;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.flow-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.fcard {
    background: var(--ink-3);
    padding: 26px 22px;
    border: 1px solid var(--line);
    position: relative;
}

.fcard::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 64px;
    height: 3px;
    background: var(--red);
}

.fcard > i {
    font-size: 30px;
    color: var(--red);
}

.fcard h4 {
    margin: 12px 0 8px;
    font-size: 20px;
}

.fcard p {
    margin: 0;
    color: var(--grey);
    font-size: 15px;
}

/* ---------- gear ---------- */

.gear {
    padding: 54px 0;
}

.gear-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 34px;
}

.gear-col figure {
    margin: 0 0 16px;
    border: 1px solid var(--line);
}

.gear-col figure img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.gear-col h4 {
    margin: 0 0 10px;
    font-size: 21px;
    padding-left: 12px;
    border-left: 4px solid var(--red);
}

.gear-col p {
    margin: 0 0 10px;
    color: var(--grey);
}

/* ---------- challenge ---------- */

.challenge {
    padding: 54px 0;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
}

.task-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.task-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 18px;
    padding: 18px 20px;
    margin-bottom: 12px;
    background: var(--ink-3);
    border-left: 3px solid var(--red);
}

.task-list li::before {
    content: "";
    grid-row: 1 / 3;
    width: 10px;
    background: var(--red);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.task-list strong {
    font-size: 17px;
}

.task-list span {
    color: var(--grey);
}

.task-list em {
    font-style: normal;
    font-size: 12px;
    color: var(--red-hi);
    border: 1px dashed rgba(225, 29, 72, 0.6);
    padding: 1px 8px;
    justify-self: start;
}

/* ---------- voices ---------- */

.voices {
    padding: 54px 0;
}

.voice-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.voice-grid blockquote {
    margin: 0;
    padding: 22px 22px 18px;
    background: linear-gradient(135deg, var(--ink-2), var(--ink-3));
    border-right: 4px solid var(--red);
    position: relative;
}

.voice-grid blockquote::before {
    content: "\201C";
    position: absolute;
    top: 4px;
    right: 14px;
    font-size: 64px;
    color: var(--red-soft);
    font-family: Georgia, serif;
}

.voice-grid p {
    margin: 0 0 12px;
    color: var(--grey);
}

.voice-grid cite {
    font-style: normal;
    font-weight: 800;
    font-size: 14px;
    letter-spacing: 2px;
    color: var(--white);
}

/* ---------- FAQ ---------- */

.faq {
    padding: 54px 0;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
}

.faq-list {
    counter-reset: faq-n;
    max-width: 860px;
}

.faq-list details {
    border: 1px solid var(--line);
    background: var(--ink-3);
    margin-bottom: 12px;
}

.faq-list summary {
    counter-increment: faq-n;
    display: flex;
    align-items: center;
    gap: 14px;
    list-style: none;
    cursor: pointer;
    padding: 15px 18px;
    font-weight: 700;
    font-size: 16px;
}

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

.faq-list summary::before {
    content: counter(faq-n);
    width: 30px;
    height: 30px;
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--red);
    color: #fff;
    font-weight: 900;
    transform: skewX(-10deg);
}

.ans {
    padding: 4px 18px 18px 62px;
    color: var(--grey);
}

/* ---------- final CTA band ---------- */

.final-cta {
    padding: 0;
    background: linear-gradient(135deg, #1a0b10, #20060c 60%, #12090e);
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px),
        calc(100% - 12px) 100%, 12px 100%, 0 calc(100% - 26px));
}

.final-in {
    padding-top: 64px;
    padding-bottom: 88px;
    text-align: center;
}

.final-in h3 {
    margin: 0 0 10px;
    font-size: clamp(24px, 4vw, 34px);
}

.final-in p {
    color: var(--grey);
    margin: 0 auto;
    max-width: 640px;
}

.final-in .cta-row {
    justify-content: center;
}

/* ---------- footer ---------- */

footer {
    background: #07060a;
    position: relative;
}

footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, var(--red) 0 70%, transparent 70% 100%);
    clip-path: polygon(0 0, 100% 0, 100% 40%, 72% 100%, 0 100%);
}

.fcols {
    display: grid;
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 52px;
    padding-bottom: 26px;
}

.fcol h4 {
    margin: 0 0 12px;
    font-size: 15px;
    color: var(--white);
    letter-spacing: 2px;
}

.fcol a {
    display: block;
    color: var(--grey);
    text-decoration: none;
    font-size: 14px;
    padding: 3px 0;
}

.fcol a:hover {
    color: var(--red-hi);
}

.f-brand {
    font-weight: 900;
    font-size: 17px;
    color: var(--white);
}

.fcol p {
    color: var(--grey);
    font-size: 13px;
    margin: 10px 0 0;
    max-width: 300px;
}

.fnote {
    border-top: 1px solid var(--line);
    padding-top: 16px;
    padding-bottom: 22px;
}

.fnote p {
    margin: 0 0 4px;
    color: var(--grey);
    font-size: 12px;
}

/* ---------- inner page hero ---------- */

.pg-hero {
    padding: 56px 0 30px;
    background:
        linear-gradient(135deg, rgba(225, 29, 72, 0.10), transparent 46%),
        var(--ink-2);
    border-bottom: 1px solid var(--line);
}

.pg-hero h2 {
    margin: 0 0 14px;
    font-size: clamp(26px, 4.6vw, 38px);
    line-height: 1.3;
}

.pg-hero p {
    color: var(--grey);
    max-width: 780px;
    margin: 0;
}

/* ---------- about page ---------- */

.manifest {
    padding: 44px 0;
}

.mblock {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
}

.mblock:last-of-type {
    border-bottom: none;
}

.mblock > i {
    font-size: 24px;
    color: var(--red);
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--red);
    background: var(--red-soft);
}

.mblock h3 {
    margin: 0 0 8px;
    font-size: 21px;
}

.mblock p {
    margin: 0;
    color: var(--grey);
}

.manifest-fig {
    margin: 0;
    position: relative;
}

.manifest-fig img {
    width: 100%;
    aspect-ratio: 21 / 9;
    object-fit: cover;
    filter: saturate(1.1);
}

.manifest-fig::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 64px;
    background: linear-gradient(180deg, transparent, var(--ink));
}

.manifest-fig figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--white);
    font-size: 14px;
}

.values {
    padding: 46px 0 30px;
}

.value-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.value-list li {
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: 16px;
    padding: 18px 20px;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.value-list li i {
    grid-row: 1 / 3;
    color: var(--red);
    font-size: 22px;
    padding-top: 4px;
}

.value-list strong {
    font-size: 17px;
}

.value-list span {
    color: var(--grey);
}

.end-cta {
    padding: 56px 0 70px;
    background: linear-gradient(135deg, #1a0b10, #120a0f);
    border-top: 1px solid var(--line);
}

.end-cta h3 {
    margin: 0 0 8px;
    font-size: clamp(22px, 3.4vw, 30px);
}

.end-cta p {
    color: var(--grey);
    margin: 0 0 4px;
    max-width: 660px;
}

/* ---------- product mode rank list ---------- */

.mode-rank {
    padding: 44px 0;
}

.mode-rank-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mode-rank-list li {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 18px;
    align-items: center;
    padding: 18px 16px;
    margin-bottom: 12px;
    background: var(--ink-2);
    border: 1px solid var(--line);
}

.mode-rank-list li b {
    font-size: 44px;
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.5px var(--red);
    min-width: 58px;
}

.mode-rank-list strong {
    font-size: 18px;
    display: block;
}

.mode-rank-list p {
    margin: 4px 0 0;
    color: var(--grey);
    font-size: 14px;
}

.mode-detail {
    padding: 20px 0 46px;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
}

.detail-card {
    background: var(--ink-3);
    border: 1px solid var(--line);
}

.detail-card figure {
    margin: 0;
    overflow: hidden;
}

.detail-card figure img {
    width: 100%;
    aspect-ratio: 5 / 4;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.detail-card:hover figure img {
    transform: scale(1.04);
}

.detail-card h4 {
    margin: 18px 20px 10px;
    font-size: 19px;
}

.detail-card ul {
    margin: 0;
    padding: 0 20px 20px 42px;
}

.detail-card li {
    color: var(--grey);
    font-size: 14px;
    padding: 3px 0;
}

/* ---------- news page ---------- */

.news-wrap {
    padding: 36px 0;
}

.news-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.news-row {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
}

.date-slab {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--red);
    color: #fff;
    padding: 12px 0;
    clip-path: polygon(0 0, 100% 8px, 100% 100%, 0 calc(100% - 8px));
}

.date-slab b {
    font-size: 18px;
    letter-spacing: 1px;
}

.date-slab span {
    font-size: 12px;
    opacity: 0.85;
}

.news-body h3 {
    margin: 2px 0 8px;
    font-size: 19px;
}

.news-body p {
    margin: 0 0 6px;
    color: var(--grey);
    font-size: 14px;
}

.news-end {
    padding: 44px 0 60px;
}

.news-end-in {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: center;
}

.news-end-in figure {
    margin: 0;
}

.news-end-in figure img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    clip-path: polygon(0 0, 100% 0, calc(100% - 22px) 100%, 0 100%);
}

.news-end-in h3 {
    margin: 0 0 10px;
    font-size: 24px;
}

.news-end-in p {
    color: var(--grey);
}

/* ---------- live page ---------- */

.ch-bar {
    padding: 36px 0 0;
}

.ch-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ch-tab {
    min-height: 44px;
    padding: 0 22px;
    background: var(--ink-3);
    color: var(--grey);
    border: 1px solid var(--line);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.ch-tab.on {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
}

.ch-grid-sec {
    padding: 34px 0 46px;
}

.ch-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.ch-card {
    background: var(--ink-2);
    border: 1px solid var(--line);
}

.ch-card figure {
    margin: 0;
    overflow: hidden;
}

.ch-card figure img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.ch-meta {
    padding: 16px 18px 20px;
}

.ch-meta h4 {
    margin: 8px 0 6px;
    font-size: 18px;
}

.ch-meta p {
    margin: 0;
    color: var(--grey);
    font-size: 14px;
}

.live-dot {
    font-size: 12px;
    letter-spacing: 1px;
    color: #fff;
    background: var(--red);
    padding: 2px 10px;
    display: inline-block;
}

.live-qa {
    padding: 30px 0 50px;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
}

/* ---------- contact page ---------- */

.ticket-deck {
    padding: 40px 0 26px;
}

.ticket-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

.ticket {
    padding: 22px 20px;
    background: var(--ink-2);
    border: 1px solid var(--line);
    border-top: 3px solid var(--red);
}

.ticket > i {
    color: var(--red);
    font-size: 24px;
}

.ticket h3 {
    margin: 10px 0 8px;
    font-size: 19px;
}

.ticket ul {
    margin: 0;
    padding-left: 20px;
}

.ticket li {
    color: var(--grey);
    font-size: 14px;
    padding: 2px 0;
}

.steps-sec {
    padding: 30px 0 50px;
}

.steps-in {
    display: grid;
    grid-template-columns: 1fr;
    gap: 26px;
    align-items: center;
}

.steps-in figure {
    margin: 0;
}

.steps-in figure img {
    width: 100%;
    aspect-ratio: 16 / 11;
    object-fit: cover;
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
}

.steps {
    margin: 0 0 18px;
    padding-left: 4px;
    counter-reset: step;
    list-style: none;
}

.steps li {
    counter-increment: step;
    position: relative;
    padding: 8px 0 8px 58px;
    color: var(--grey);
    border-bottom: 1px dashed var(--line);
}

.steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 6px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red);
    color: #fff;
    font-weight: 900;
    transform: skewX(-12deg);
}

.support-faq {
    padding: 24px 0 56px;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
}

/* ---------- responsive ---------- */

@media (max-width: 767px) {
    .vs-card {
        grid-template-columns: 1fr;
    }
    .vs-tag {
        justify-self: start;
        margin-left: 18px;
    }
}

@media (min-width: 768px) {
    .wrap {
        padding-left: 28px;
        padding-right: 28px;
    }
    .hero-in {
        grid-template-columns: 1fr 340px;
        gap: 40px;
        padding-top: 90px;
        padding-bottom: 90px;
    }
    .ghost-num {
        right: 0;
        bottom: -40px;
    }
    .arena-grid {
        grid-template-columns: 1fr 1.05fr;
        gap: 40px;
    }
    .flow-cards,
    .voice-grid,
    .detail-grid,
    .ch-grid,
    .ticket-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .fcols {
        grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
        gap: 34px;
    }
    .value-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-end-in,
    .steps-in {
        grid-template-columns: 1.1fr 1fr;
        gap: 44px;
    }
}

@media (min-width: 1080px) {
    .hero-in {
        grid-template-columns: 1fr 460px;
    }
    .flow-cards {
        grid-template-columns: repeat(3, 1fr);
    }
    .voice-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .gear-grid {
        grid-template-columns: 1fr 1fr;
        gap: 44px;
    }
    .vs-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    .detail-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .ch-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .ticket-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .value-list {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ---------- motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .detail-card:hover figure img {
        transform: none;
    }
}