/* mk-19 时尚大片门户：纯黑底 + 满出血摄影 + 象牙文字 + 金线点缀 */
:root {
    --ink: #000000;
    --block: #0e0e0e;
    --ivory: #f5f0e8;
    --gold: #c9a227;
    --muted: #8b857a;
    --line-ivory: rgba(245, 240, 232, 0.2);
    --line-grey: rgba(139, 133, 122, 0.42);
    --serif: "Times New Roman", "Songti SC", serif;
    --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --pad-x: clamp(20px, 5.6vw, 92px);
    --pad-y: clamp(56px, 9vh, 126px);
}

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

html {
    -webkit-text-size-adjust: 100%;
}

html body {
    margin: 0;
    background: var(--ink);
    color: var(--ivory);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 2;
    overflow-x: hidden;
}

body img {
    display: block;
    max-width: 100%;
    object-fit: cover;
}

body a {
    color: var(--ivory);
    text-decoration: none;
}

body h1,
body h2,
body h3,
body h4 {
    margin: 0;
    font-family: var(--serif);
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: 0.02em;
}

body p {
    margin: 0;
}

body ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

body figure {
    margin: 0;
}

/* ---------- 顶部叠图导航 ---------- */
.overlay-head {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    border-bottom: 1px solid transparent;
    background: transparent;
    transition: background-color 0.45s ease, border-color 0.45s ease;
}

.overlay-head.is-stuck {
    position: fixed;
    background: var(--ink);
    border-bottom-color: var(--gold);
}

.head-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px var(--pad-x);
}

.brand {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
}

.brand-mark {
    font-family: var(--serif);
    font-size: 26px;
    letter-spacing: 0.26em;
    line-height: 1.1;
}

.brand-sub {
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.12em;
}

.nav-primary ul {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-primary a {
    font-size: 14px;
    letter-spacing: 0.14em;
    padding-bottom: 4px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, color 0.3s ease;
}

.nav-primary a:hover,
.nav-primary a:focus-visible,
.nav-primary a[aria-current="page"] {
    border-bottom-color: var(--gold);
    color: var(--gold);
}

.head-right a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: 0.16em;
    color: var(--ivory);
}

.head-right a:hover,
.head-right a:focus-visible {
    color: var(--gold);
}

.head-right i {
    font-size: 15px;
}

.mobile-nav {
    position: relative;
    display: none;
}

.mobile-nav summary {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 5px;
    list-style: none;
    cursor: pointer;
    padding: 8px 0;
}

.mobile-nav summary::-webkit-details-marker {
    display: none;
}

.nav-bar {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--ivory);
}

.nav-word {
    font-size: 11px;
    letter-spacing: 0.24em;
    color: var(--muted);
}

.mobile-nav ul {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    min-width: 208px;
    max-width: 76vw;
    background: var(--block);
    border-top: 1px solid var(--gold);
    padding: 18px 24px;
}

.mobile-nav li + li {
    border-top: 1px solid var(--line-ivory);
}

.mobile-nav a {
    display: block;
    padding: 12px 0;
    font-size: 14px;
    letter-spacing: 0.12em;
}

.mobile-nav a[aria-current="page"] {
    color: var(--gold);
}

/* ---------- 通用文字元素 ---------- */
.tag-gold {
    font-size: 12px;
    letter-spacing: 0.34em;
    color: var(--gold);
}

.arrow-link {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
    font-size: 14px;
    letter-spacing: 0.08em;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(201, 162, 39, 0.5);
    transition: color 0.3s ease, border-color 0.3s ease;
}

.arrow-link .arrow {
    color: var(--gold);
    transition: transform 0.35s ease;
}

.arrow-link:hover,
.arrow-link:focus-visible {
    color: var(--gold);
    border-bottom-color: var(--gold);
}

.arrow-link:hover .arrow,
.arrow-link:focus-visible .arrow {
    transform: translateX(7px);
}

.shell {
    max-width: 1280px;
    margin: 0 auto;
    padding-inline: var(--pad-x);
}

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

.warm {
    color: #e7e1d6;
}

.sec-lead {
    max-width: 820px;
    color: var(--muted);
    font-size: 14px;
}

/* ---------- 首屏沉浸摄影 ---------- */
.immersive {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.immersive-figure {
    position: absolute;
    inset: 0;
}

.immersive-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 46%;
    max-height: 100vh;
    will-change: transform;
}

.immersive-veil {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.78) 0%,
        rgba(0, 0, 0, 0.22) 42%,
        rgba(0, 0, 0, 0.9) 100%
    );
}

.immersive-copy {
    position: relative;
    z-index: 2;
    max-width: 880px;
    padding: 0 var(--pad-x) clamp(52px, 10vh, 118px);
}

.immersive-copy h1 {
    font-size: clamp(30px, 4.6vw, 58px);
    margin: 18px 0 22px;
}

.immersive-copy p {
    font-size: 15px;
    color: #e7e1d6;
    max-width: 640px;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 42px;
    margin-top: 34px;
}

/* ---------- 1 topic ---------- */
.bleed-full {
    position: relative;
    min-height: 66vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bleed-full figure {
    position: absolute;
    inset: 0;
}

.bleed-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 38%;
    max-height: 78vh;
}

.bleed-copy {
    position: relative;
    z-index: 2;
    max-width: 720px;
    padding: clamp(40px, 8vh, 90px) var(--pad-x);
    text-align: center;
}

.bleed-copy h2 {
    font-size: clamp(24px, 3.2vw, 40px);
    margin: 16px 0 20px;
}

.bleed-copy p + p {
    margin-top: 12px;
}

.bleed-copy::before {
    content: "";
    position: absolute;
    inset: 8% 6%;
    background: radial-gradient(60% 60% at 50% 50%, rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0));
    z-index: -1;
}

.topic-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--ink);
}

.topic-thumbs figure {
    background: var(--block);
}

.topic-thumbs img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    max-height: 52vh;
}

.topic-thumbs figure:nth-child(2) img {
    object-position: 40% 62%;
}

.topic-thumbs figure:nth-child(3) img {
    object-position: 68% 34%;
}

.topic-thumbs figcaption {
    padding: 16px 22px 26px;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.9;
}

.topic-links {
    padding: var(--pad-y) var(--pad-x) calc(var(--pad-y) - 20px);
}

.topic-links h2 {
    font-size: clamp(20px, 2.4vw, 28px);
    margin: 14px 0 16px;
}

.topic-links p {
    max-width: 760px;
}

.topic-links ul {
    display: flex;
    flex-wrap: wrap;
    gap: 22px 56px;
    margin-top: 34px;
}

/* ---------- 2 picked-play ---------- */
.picked-play {
    background: var(--block);
    padding: var(--pad-y) 0 0;
}

.play-head {
    padding: 0 var(--pad-x) 42px;
    max-width: 900px;
}

.play-head h2 {
    font-size: clamp(24px, 3.2vw, 38px);
    margin: 14px 0 12px;
}

.play-head h2 + h2 {
    font-size: clamp(17px, 1.8vw, 21px);
    color: var(--muted);
    margin: 0;
}

.play-cards-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--ink);
}

.play-card {
    background: var(--block);
    padding-bottom: 30px;
}

.play-card img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    max-height: 70vh;
    object-position: center 40%;
}

.play-card:nth-child(2) img {
    object-position: 42% 72%;
}

.play-card:nth-child(3) img {
    object-position: 58% 28%;
}

.play-card h3 {
    font-size: 20px;
    padding: 24px 26px 10px;
}

.play-card p {
    padding: 0 26px;
    font-size: 14px;
    color: var(--muted);
}

/* ---------- 3 hot-event ---------- */
.hot-event {
    margin-top: 1px;
}

.bleed-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--ink);
}

.split-copy {
    background: var(--block);
    padding: var(--pad-y) var(--pad-x);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.split-copy h2 {
    font-size: clamp(24px, 3vw, 36px);
    margin: 14px 0 18px;
}

.split-copy h2 + h2 {
    font-size: clamp(18px, 1.9vw, 23px);
    color: var(--gold);
    letter-spacing: 0.06em;
    margin: 0 0 22px;
}

.split-copy p + p {
    margin-top: 14px;
}

.split-copy .arrow-link {
    margin-top: 30px;
    align-self: flex-start;
}

.split-figure {
    position: relative;
    min-height: 74vh;
    overflow: hidden;
}

.split-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 42% 30%;
    max-height: 92vh;
}

/* ---------- 4 client-app ---------- */
.client-app {
    margin-top: 1px;
}

.client-mini {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 1px;
    background: var(--ink);
}

.client-links {
    background: var(--block);
    padding: var(--pad-y) var(--pad-x);
}

.client-links h2 {
    font-size: clamp(22px, 2.6vw, 32px);
    margin: 14px 0 6px;
}

.client-side {
    margin-bottom: 26px;
}

.client-list li {
    border-top: 1px solid var(--line-ivory);
    padding: 24px 0 22px;
}

.client-list a {
    display: inline-flex;
    align-items: baseline;
    gap: 10px;
    font-size: 15px;
    letter-spacing: 0.06em;
}

.client-list a .arrow {
    color: var(--gold);
    transition: transform 0.35s ease;
}

.client-list a:hover .arrow,
.client-list a:focus-visible .arrow {
    transform: translateX(8px);
}

.client-list p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.9;
    margin-top: 6px;
}

.client-stack {
    display: grid;
    gap: 1px;
    background: var(--ink);
}

.client-stack figure {
    position: relative;
    overflow: hidden;
    min-height: 0;
}

.client-stack img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.client-stack figure:first-child img {
    aspect-ratio: 16 / 10;
    object-position: 30% 54%;
    max-height: 44vh;
}

.client-stack figure:last-child img {
    aspect-ratio: 16 / 9;
    object-position: 72% 26%;
    max-height: 40vh;
}

/* ---------- 5 member-service ---------- */
.member-service {
    padding: var(--pad-y) var(--pad-x) calc(var(--pad-y) - 18px);
}

.member-service h2 {
    font-size: clamp(24px, 3vw, 36px);
    margin: 14px 0 18px;
}

.member-lead {
    max-width: 800px;
    color: #e7e1d6;
}

.member-line {
    margin-top: 44px;
}

.member-item {
    border-top: 1px solid var(--line-ivory);
    padding: 38px 0;
    display: grid;
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    gap: 24px 52px;
}

.member-item h3 {
    font-size: 20px;
}

.member-item p {
    font-size: 14px;
    color: #ded8cd;
}

.member-item .arrow-link {
    margin-top: 14px;
    grid-column: 2;
}

/* ---------- 6 faq ---------- */
.faq {
    padding: 0 var(--pad-x) var(--pad-y);
}

.faq h2 {
    font-size: clamp(24px, 3vw, 36px);
    margin-bottom: 30px;
}

.faq-immersive {
    border-bottom: 1px solid var(--line-grey);
}

.faq-item {
    border-top: 1px solid var(--line-grey);
    padding: 30px 0 32px;
    max-width: 940px;
}

.faq-q {
    font-family: var(--serif);
    font-size: 20px;
    line-height: 1.6;
    letter-spacing: 0.02em;
}

.faq-a {
    font-size: 14px;
    color: var(--muted);
    line-height: 2;
    margin-top: 12px;
}

.faq-more {
    margin-top: 40px;
}

/* ---------- 页脚 ---------- */
.dark-slim {
    padding: 66px var(--pad-x) 56px;
    text-align: center;
    border-top: 1px solid var(--line-ivory);
}

.foot-brand {
    font-family: var(--serif);
    font-size: 24px;
    letter-spacing: 0.34em;
}

.foot-links {
    margin-top: 22px;
    font-size: 13px;
    color: var(--muted);
    letter-spacing: 0.08em;
}

.foot-links a {
    color: var(--ivory);
    padding: 0 4px;
}

.foot-links a:hover,
.foot-links a:focus-visible {
    color: var(--gold);
}

.foot-note {
    margin-top: 20px;
    font-size: 12px;
    color: #6c675f;
    line-height: 1.9;
}

/* ---------- about ---------- */
.about-immersive {
    position: relative;
    min-height: 92vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.about-immersive figure {
    position: absolute;
    inset: 0;
}

.about-immersive img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 26%;
    max-height: 100vh;
}

.about-open {
    position: relative;
    z-index: 2;
    padding: 0 var(--pad-x) clamp(56px, 10vh, 110px);
    max-width: 900px;
}

.about-open h1 {
    font-size: clamp(28px, 4vw, 50px);
    margin: 16px 0 20px;
}

.about-lines {
    padding: var(--pad-y) var(--pad-x) 0;
}

.about-lines > h2 {
    font-size: clamp(22px, 2.6vw, 32px);
    margin-bottom: 34px;
}

.about-line {
    border-top: 1px solid var(--line-ivory);
    padding: 40px 0;
    display: grid;
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    gap: 20px 56px;
}

.about-line h2 {
    font-size: 21px;
    color: var(--ivory);
}

.about-line-body p {
    font-size: 14px;
    color: #ded8cd;
}

.about-line-body p + p {
    margin-top: 12px;
    color: var(--muted);
}

.about-strip {
    margin-top: 26px;
}

.about-strip img {
    width: 100%;
    aspect-ratio: 5 / 1;
    object-fit: cover;
    object-position: center 32%;
    max-height: 34vh;
}

.about-strip figcaption {
    padding: 14px var(--pad-x) 0;
    font-size: 12px;
    color: var(--muted);
    letter-spacing: 0.08em;
}

.about-sign {
    text-align: center;
    padding: clamp(70px, 12vh, 140px) var(--pad-x) clamp(70px, 12vh, 130px);
}

.sign-line {
    font-family: var(--serif);
    font-size: clamp(20px, 2.6vw, 31px);
    line-height: 1.7;
    max-width: 880px;
    margin: 0 auto 34px;
}

/* ---------- product ---------- */
.prod-immersive {
    padding-top: 0;
}

.prod-open {
    padding: clamp(120px, 20vh, 200px) var(--pad-x) clamp(50px, 8vh, 80px);
    max-width: 880px;
}

.prod-open h1 {
    font-size: clamp(28px, 4vw, 48px);
    margin-bottom: 20px;
}

.prod-seg {
    position: relative;
    min-height: 78vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    margin-bottom: clamp(14px, 3vh, 38px);
}

.prod-seg figure {
    position: absolute;
    inset: 0;
}

.prod-seg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    max-height: 100vh;
}

.prod-seg:nth-of-type(2) img {
    object-position: center 48%;
}

.prod-seg:nth-of-type(3) img {
    object-position: center 62%;
}

.prod-seg:nth-of-type(4) img {
    object-position: center 24%;
}

.prod-copy {
    position: relative;
    z-index: 2;
    padding: 0 var(--pad-x) clamp(46px, 8vh, 92px);
    max-width: 780px;
}

.prod-copy h2 {
    font-size: clamp(22px, 2.9vw, 34px);
    margin: 14px 0 16px;
}

.prod-copy p {
    font-size: 14px;
    color: #e7e1d6;
}

.prod-copy p + p {
    margin-top: 12px;
}

.prod-copy .arrow-link {
    margin-top: 26px;
}

.prod-tail {
    padding: var(--pad-y) var(--pad-x) calc(var(--pad-y) - 10px);
}

.prod-tail h2 {
    font-size: clamp(22px, 2.6vw, 30px);
    margin-bottom: 16px;
}

.prod-tail ul {
    margin-top: 30px;
}

.prod-tail li {
    border-top: 1px solid var(--line-ivory);
    padding: 22px 0;
}

/* ---------- news ---------- */
.news-immersive {
    padding-bottom: var(--pad-y);
}

.news-hero {
    position: relative;
    min-height: 74vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.news-hero figure {
    position: absolute;
    inset: 0;
}

.news-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 22%;
    max-height: 88vh;
}

.news-hero-copy {
    position: relative;
    z-index: 2;
    padding: 0 var(--pad-x) clamp(46px, 8vh, 84px);
    max-width: 820px;
}

.news-hero-copy h1 {
    font-size: clamp(28px, 3.8vw, 46px);
    margin-bottom: 18px;
}

.news-hero-copy h2 {
    font-size: clamp(17px, 1.8vw, 21px);
    color: var(--gold);
    letter-spacing: 0.06em;
    margin-top: 20px;
}

.news-lines {
    padding: var(--pad-y) var(--pad-x) 0;
}

.news-lines h2 {
    font-size: clamp(22px, 2.6vw, 32px);
    margin-bottom: 30px;
}

.news-row {
    border-top: 1px solid var(--line-ivory);
    padding: 26px 0;
    display: grid;
    grid-template-columns: minmax(0, 132px) minmax(0, 1fr) 46px;
    gap: 10px 30px;
    align-items: baseline;
}

.news-date {
    font-size: 12px;
    letter-spacing: 0.22em;
    color: var(--gold);
}

.news-title {
    font-family: var(--serif);
    font-size: 19px;
    line-height: 1.6;
}

.news-note {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.9;
    margin-top: 6px;
}

.news-go {
    font-size: 17px;
    color: var(--gold);
    text-align: right;
    transition: transform 0.35s ease;
}

.news-row:hover .news-go {
    transform: translateX(8px);
}

.news-mid {
    position: relative;
    min-height: 56vh;
    margin-top: var(--pad-y);
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.news-mid figure {
    position: absolute;
    inset: 0;
}

.news-mid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 62% 40%;
    max-height: 70vh;
}

.news-mid-copy {
    position: relative;
    z-index: 2;
    padding: 0 var(--pad-x) clamp(38px, 7vh, 72px);
    max-width: 780px;
}

.news-mid-copy h2 {
    font-size: clamp(20px, 2.5vw, 30px);
    margin-bottom: 12px;
}

.news-mid-copy h2 + h2 {
    font-size: 17px;
    color: var(--gold);
    letter-spacing: 0.06em;
    margin: 18px 0 12px;
}

.news-mid-copy p {
    font-size: 14px;
    color: #e7e1d6;
}

.news-foot {
    padding: var(--pad-y) var(--pad-x) 0;
}

.news-foot h2 {
    font-size: clamp(20px, 2.4vw, 28px);
    margin-bottom: 18px;
}

.news-foot ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 50px;
    margin-top: 26px;
}

/* ---------- contact ---------- */
.contact-immersive {
    position: relative;
    min-height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(110px, 18vh, 170px) var(--pad-x) var(--pad-y);
}

.contact-veil {
    position: absolute;
    inset: 0;
}

.contact-veil img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 30% 40%;
    max-height: 100vh;
    opacity: 0.34;
}

.contact-core {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 760px;
    text-align: center;
}

.contact-core h1 {
    font-size: clamp(28px, 3.8vw, 46px);
    margin-bottom: 20px;
}

.contact-core .lead {
    color: #e7e1d6;
    font-size: 14px;
    max-width: 620px;
    margin: 0 auto 8px;
}

.contact-lines {
    margin: 44px 0 46px;
    text-align: left;
}

.contact-line {
    border-top: 1px solid var(--line-ivory);
    padding: 22px 0;
    display: grid;
    grid-template-columns: minmax(0, 150px) minmax(0, 1fr);
    gap: 8px 26px;
    align-items: baseline;
}

.contact-line:last-child {
    border-bottom: 1px solid var(--line-ivory);
}

.contact-line h2 {
    font-size: 17px;
    color: var(--gold);
    letter-spacing: 0.06em;
}

.contact-line p {
    font-size: 14px;
    color: #ded8cd;
}

.contact-form {
    text-align: left;
    margin-top: 10px;
}

.contact-form h2 {
    font-size: 20px;
    margin-bottom: 22px;
}

.field {
    margin-bottom: 26px;
}

.field label {
    display: block;
    font-size: 12px;
    letter-spacing: 0.2em;
    color: var(--muted);
    margin-bottom: 8px;
}

.field input,
.field textarea {
    width: 100%;
    background: transparent;
    border: 0;
    border-bottom: 1px solid rgba(245, 240, 232, 0.55);
    color: var(--ivory);
    font-family: var(--sans);
    font-size: 15px;
    line-height: 1.9;
    padding: 8px 2px;
    border-radius: 0;
    transition: border-color 0.3s ease;
}

.field textarea {
    min-height: 96px;
    resize: vertical;
}

.field input:focus,
.field textarea:focus {
    outline: none;
    border-bottom-color: var(--gold);
}

.form-act {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
}

.form-btn {
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--gold);
    color: var(--ivory);
    font-family: var(--sans);
    font-size: 14px;
    letter-spacing: 0.1em;
    padding: 8px 0;
    cursor: pointer;
}

.form-btn:hover,
.form-btn:focus-visible {
    color: var(--gold);
}

.form-note {
    font-size: 12px;
    color: var(--muted);
}

.contact-faq {
    padding: var(--pad-y) var(--pad-x) 0;
}

.contact-faq h2 {
    font-size: clamp(22px, 2.6vw, 30px);
    margin-bottom: 24px;
}

.contact-faq p {
    border-top: 1px solid var(--line-grey);
    padding: 20px 0;
    font-size: 14px;
    color: var(--muted);
}

.contact-faq p:last-child {
    border-bottom: 1px solid var(--line-grey);
}

.contact-faq strong {
    color: var(--ivory);
    font-weight: 400;
    font-family: var(--serif);
    font-size: 16px;
    margin-right: 14px;
}

.contact-tail {
    padding: var(--pad-y) var(--pad-x) 0;
    max-width: 940px;
    margin: 0 auto;
    text-align: center;
}

.contact-tail h2 {
    font-size: clamp(22px, 2.6vw, 30px);
    margin-bottom: 18px;
}

.contact-tail p {
    color: var(--muted);
    font-size: 14px;
}

.contact-tail p + p {
    margin-top: 12px;
}

.contact-tail ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px 52px;
    margin-top: 30px;
}

.contact-band {
    margin-top: var(--pad-y);
}

.contact-band img {
    width: 100%;
    aspect-ratio: 8 / 1;
    object-fit: cover;
    object-position: center 66%;
    max-height: 26vh;
}

/* ---------- app ---------- */
.app-immersive-hero {
    position: relative;
    min-height: 88vh;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.app-immersive-hero figure {
    position: absolute;
    inset: 0;
}

.app-immersive-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 58% 34%;
    max-height: 100vh;
}

.app-open {
    position: relative;
    z-index: 2;
    padding: 0 var(--pad-x) clamp(52px, 9vh, 100px);
    max-width: 840px;
}

.app-open h1 {
    font-size: clamp(28px, 4vw, 48px);
    margin: 16px 0 18px;
}

.app-lines {
    padding: var(--pad-y) var(--pad-x) 0;
}

.app-lines > h2 {
    font-size: clamp(22px, 2.6vw, 32px);
    margin-bottom: 30px;
}

.app-line {
    border-top: 1px solid var(--line-ivory);
    padding: 32px 0;
    display: grid;
    grid-template-columns: minmax(0, 168px) minmax(0, 1fr) minmax(0, 220px);
    gap: 12px 32px;
    align-items: start;
}

.app-line h2 {
    font-size: 19px;
}

.app-line p {
    font-size: 14px;
    color: #ded8cd;
}

.app-point {
    font-size: 13px;
    color: var(--gold);
    line-height: 1.9;
    border-left: 1px solid rgba(201, 162, 39, 0.6);
    padding-left: 16px;
}

.app-shot {
    margin-top: var(--pad-y);
    position: relative;
}

.app-shot img {
    width: 100%;
    aspect-ratio: 7 / 4;
    object-fit: cover;
    object-position: 34% 58%;
    max-height: 68vh;
}

.app-shot-cap {
    padding: 20px var(--pad-x) 0;
}

.app-shot-cap h2 {
    font-size: clamp(19px, 2.2vw, 26px);
    margin-bottom: 8px;
}

.app-shot-cap p {
    font-size: 13px;
    color: var(--muted);
    max-width: 760px;
}

.app-faq {
    padding: var(--pad-y) var(--pad-x) calc(var(--pad-y) - 12px);
}

.app-faq > h2 {
    font-size: clamp(22px, 2.6vw, 30px);
    margin-bottom: 30px;
}

.app-faq-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--ink);
}

.app-qa {
    background: var(--block);
    padding: 30px 32px 34px;
}

.app-qa h3 {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.app-qa p {
    font-size: 14px;
    color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .bleed-split,
    .client-mini {
        grid-template-columns: 1fr;
    }

    .split-figure {
        min-height: 58vh;
    }

    .app-line {
        grid-template-columns: minmax(0, 1fr);
    }

    .app-point {
        border-left: 0;
        padding-left: 0;
    }
}

@media (max-width: 900px) {
    .nav-primary {
        display: none;
    }

    .mobile-nav {
        display: block;
    }

    .play-cards-3 {
        grid-template-columns: 1fr;
    }

    .play-card img {
        aspect-ratio: 4 / 3;
    }

    .play-card h3 {
        padding-top: 18px;
    }

    .member-item {
        grid-template-columns: minmax(0, 1fr);
    }

    .member-item .arrow-link {
        grid-column: 1;
    }

    .about-line {
        grid-template-columns: minmax(0, 1fr);
    }

    .news-row {
        grid-template-columns: minmax(0, 1fr);
    }

    .news-go {
        text-align: left;
    }

    .app-faq-list {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 620px) {
    html body {
        font-size: 14px;
    }

    .topic-thumbs {
        grid-template-columns: 1fr;
    }

    .contact-line {
        grid-template-columns: minmax(0, 1fr);
    }

    .immersive,
    .about-immersive,
    .app-immersive-hero {
        min-height: 82vh;
    }

    .head-right .head-label {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .immersive-figure img {
        transform: none !important;
    }
}