/* ==========================================================================
   mk-01 / 智能科技产品发布中心
   白底与深蓝建立秩序感：视觉宣布 -> 行式信息 -> 深蓝收束
   全站禁用圆角、投影与渐变按钮
   ========================================================================== */

:root {
    --ink: #0f1f38;
    --ink-soft: #46586f;
    --ink-mute: #6d7d93;
    --line: #d8e0ec;
    --line-strong: #b6c4d8;
    --paper: #ffffff;
    --paper-alt: #f3f6fb;
    --navy: #0b1f3a;
    --navy-deep: #071730;
    --blue: #1f5fd0;
    --blue-dark: #164090;
    --blue-tint: #e8effb;
    --wrap: 1200px;
    --sec-space: 88px;
    --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

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

html body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.9;
    color: var(--ink);
    background: var(--paper);
}

body h1,
body h2,
body h3 {
    margin: 0;
    line-height: 1.35;
    font-weight: 700;
}

body p {
    margin: 0 0 16px;
}

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

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

body img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 50% 50%;
    max-width: 100%;
    background: var(--paper-alt);
}

body figure {
    margin: 0;
}

figcaption {
    margin-top: 10px;
    font-size: 13px;
    color: var(--ink-mute);
}

/* 布局与通用元件 --------------------------------------------------------- */

.wrap {
    width: 100%;
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 24px;
}

.eyebrow {
    display: block;
    margin: 0 0 10px;
    font-size: 13px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--blue);
}

.btn {
    display: inline-block;
    padding: 13px 26px;
    border: 1px solid transparent;
    font-size: 15px;
    line-height: 1.4;
    text-align: center;
}

.btn-primary {
    background: var(--blue);
    border-color: var(--blue);
    color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--blue-dark);
    border-color: var(--blue-dark);
}

.btn-ghost {
    background: #ffffff;
    border-color: var(--line-strong);
    color: var(--ink);
}

.btn-ghost:hover,
.btn-ghost:focus {
    border-color: var(--blue);
    color: var(--blue-dark);
}

.btn-light {
    background: #ffffff;
    border-color: #ffffff;
    color: var(--navy);
}

.btn-light:hover,
.btn-light:focus {
    background: var(--blue-tint);
    border-color: var(--blue-tint);
}

.btn-outline-light {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.6);
    color: #ffffff;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.12);
}

/* 双层 header ------------------------------------------------------------ */

.site-head {
    position: sticky;
    top: 0;
    z-index: 40;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
}

.util-strip {
    height: 34px;
    background: var(--navy);
    color: #c9d6ea;
    font-size: 13px;
}

.util-inner {
    display: flex;
    height: 34px;
    align-items: center;
    justify-content: space-between;
}

.util-note {
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #9fb2cd;
}

.util-links {
    display: flex;
    gap: 22px;
    flex: 0 0 auto;
}

.util-links a:hover,
.util-links a:focus {
    color: #ffffff;
    text-decoration: underline;
}

.main-bar {
    height: 72px;
}

.bar-inner {
    display: flex;
    height: 72px;
    align-items: center;
    gap: 26px;
}

.brand {
    flex: 0 0 auto;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--navy);
}

.brand span {
    color: var(--blue);
}

.main-nav {
    flex: 1 1 auto;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: block;
    padding: 24px 14px;
    font-size: 15px;
    color: var(--ink);
}

.nav-item > a:hover,
.nav-item > a:focus,
.nav-item.is-current > a {
    color: var(--blue);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 30;
    width: 232px;
    padding: 14px 0;
    background: #ffffff;
    border: 1px solid var(--line);
    border-top: 3px solid var(--blue);
    display: none;
}

.has-dd:hover .dropdown,
.has-dd:focus-within .dropdown {
    display: block;
}

.dropdown a {
    display: block;
    padding: 9px 18px;
    font-size: 14px;
    color: var(--ink-soft);
}

.dropdown a:hover,
.dropdown a:focus {
    background: var(--paper-alt);
    color: var(--blue);
}

.dd-note {
    margin: 6px 18px 0;
    padding-top: 10px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    line-height: 1.7;
    color: var(--ink-mute);
}

.bar-actions {
    flex: 0 0 auto;
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--line-strong);
    background: #ffffff;
    color: var(--navy);
    font-size: 17px;
    cursor: pointer;
}

.drawer {
    display: none;
    border-top: 1px solid var(--line);
    background: var(--paper-alt);
}

.drawer-list {
    padding: 8px 0;
}

.drawer-list > li > a {
    display: block;
    padding: 13px 24px;
    font-size: 15px;
    border-bottom: 1px solid var(--line);
}

.drawer-note {
    margin: 0;
    padding: 14px 24px 18px;
    font-size: 13px;
    color: var(--ink-mute);
}

/* 首屏 ------------------------------------------------------------------- */

.hero {
    padding: 64px 0 0;
    border-bottom: 1px solid var(--line);
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 32px;
    align-items: center;
}

.hero-copy {
    grid-column: 1 / 7;
}

.hero-copy h1 {
    font-size: 40px;
    letter-spacing: 0.01em;
}

.hero-copy .lede {
    margin-top: 20px;
    font-size: 17px;
    color: var(--ink-soft);
    max-width: 46ch;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 26px;
    margin-top: 30px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.hero-tags li {
    position: relative;
    padding-left: 16px;
    font-size: 14px;
    color: var(--ink-soft);
}

.hero-tags li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.62em;
    width: 6px;
    height: 6px;
    background: var(--blue);
}

.hero-visual {
    grid-column: 7 / 13;
}

.hero-visual img {
    aspect-ratio: 21 / 9;
    max-height: 420px;
}

.family-tabs {
    margin-top: 56px;
    background: var(--paper-alt);
    border-top: 1px solid var(--line);
}

.family-tabs-inner {
    display: flex;
    gap: 0;
    overflow-x: auto;
}

.family-tab {
    flex: 0 0 auto;
    padding: 20px 26px;
    font-size: 15px;
    color: var(--ink-soft);
    border-right: 1px solid var(--line);
    white-space: nowrap;
}

.family-tab:hover,
.family-tab:focus {
    background: #ffffff;
    color: var(--blue);
}

/* 区块骨架 --------------------------------------------------------------- */

.sec {
    padding: var(--sec-space) 0;
}

.sec-alt {
    background: var(--paper-alt);
}

.sec-head {
    margin-bottom: 44px;
    max-width: 78ch;
}

.sec-head h2,
.sec h2 {
    position: relative;
    padding-left: 18px;
    font-size: 28px;
}

.sec h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.3em;
    width: 4px;
    height: 0.86em;
    background: var(--blue);
}

.sec-lede {
    margin-top: 16px;
    color: var(--ink-soft);
    max-width: 78ch;
}

.sec-more {
    margin: 34px 0 0;
    font-size: 15px;
}

.sec-more a {
    color: var(--blue);
    border-bottom: 1px solid var(--blue);
}

/* 产品家族三列卡 --------------------------------------------------------- */

.family-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.family-card {
    background: #ffffff;
    border: 1px solid var(--line);
    padding: 0 0 18px;
}

.family-card figure {
    border-bottom: 1px solid var(--line);
}

.family-card img {
    aspect-ratio: 4 / 3;
    max-height: 260px;
}

.family-card h3 {
    margin: 20px 22px 8px;
    font-size: 19px;
}

.family-card p {
    margin: 0 22px;
    font-size: 15px;
    color: var(--ink-soft);
}

.spec-strip {
    margin: 18px 22px 0;
    border-top: 1px solid var(--line);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin: 0;
    padding: 8px 0;
    border-bottom: 1px solid var(--line);
    font-size: 13px;
}

.spec-k {
    color: var(--ink-mute);
}

.spec-v {
    color: var(--ink);
    text-align: right;
}

/* 左右分栏 --------------------------------------------------------------- */

.play-split {
    display: grid;
    grid-template-columns: 1fr 0.82fr;
    gap: 52px;
    align-items: start;
}

.play-steps {
    margin-top: 26px;
    counter-reset: play;
}

.play-steps li {
    position: relative;
    padding: 16px 0 16px 54px;
    border-top: 1px solid var(--line);
}

.play-steps li::before {
    counter-increment: play;
    content: counter(play);
    position: absolute;
    left: 0;
    top: 16px;
    width: 30px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    font-size: 14px;
    color: #ffffff;
    background: var(--navy);
}

.play-steps strong {
    display: block;
    font-size: 16px;
    margin-bottom: 2px;
}

.play-steps span {
    font-size: 14px;
    color: var(--ink-soft);
}

.play-visual img {
    aspect-ratio: 3 / 4;
    max-height: 560px;
}

/* 行式技术说明 ----------------------------------------------------------- */

.tech-table {
    border-top: 1px solid var(--line-strong);
}

.tech-row {
    display: grid;
    grid-template-columns: 88px 268px minmax(0, 1fr);
    gap: 26px;
    align-items: baseline;
    padding: 26px 0;
    border-bottom: 1px solid var(--line);
}

.tech-no {
    font-size: 14px;
    letter-spacing: 0.3em;
    color: var(--blue);
}

.tech-row h3 {
    font-size: 18px;
}

.tech-row p {
    margin: 0;
    font-size: 15px;
    color: var(--ink-soft);
}

/* 客户端横向栏 ----------------------------------------------------------- */

.client-rail {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.client-card {
    background: #ffffff;
    border: 1px solid var(--line);
    padding-bottom: 18px;
}

.client-card img {
    aspect-ratio: 1 / 1;
    max-height: 210px;
    border-bottom: 1px solid var(--line);
    object-position: 50% 40%;
}

.client-card:nth-child(2) img {
    object-position: 50% 12%;
}

.client-card:nth-child(3) img {
    object-position: 82% 48%;
}

.client-card:nth-child(4) img {
    object-position: 18% 84%;
}

.client-card h3 {
    margin: 16px 18px 8px;
    font-size: 17px;
}

.client-card p {
    margin: 0 18px;
    font-size: 14px;
    color: var(--ink-soft);
}

/* 服务方格 --------------------------------------------------------------- */

.support-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--line);
    background: #ffffff;
}

.support-cell {
    padding: 26px 26px 24px;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.support-cell:nth-child(even) {
    border-right: 0;
}

.support-cell:nth-last-child(-n + 2) {
    border-bottom: 0;
}

.support-cell strong {
    display: block;
    margin-bottom: 6px;
    font-size: 17px;
}

.support-cell span {
    font-size: 14px;
    color: var(--ink-soft);
}

.support-cell:hover,
.support-cell:focus {
    background: var(--blue-tint);
}

/* 资讯堆叠 --------------------------------------------------------------- */

.news-stack {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 46px;
    align-items: start;
}

.news-main img {
    aspect-ratio: 16 / 9;
    max-height: 320px;
    margin-bottom: 18px;
    object-position: 50% 34%;
}

.news-main h3 {
    font-size: 21px;
    margin-bottom: 10px;
}

.news-main p {
    font-size: 15px;
    color: var(--ink-soft);
}

.news-row {
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 18px;
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.news-row img {
    aspect-ratio: 4 / 3;
    max-height: 110px;
    object-position: 30% 26%;
}

.news-row h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.news-row p {
    margin: 0;
    font-size: 14px;
    color: var(--ink-soft);
}

/* 问答 ------------------------------------------------------------------- */

.faq-list {
    border-top: 1px solid var(--line-strong);
}

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

.faq-item summary {
    position: relative;
    padding: 20px 46px 20px 0;
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

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

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 8px;
    top: 18px;
    color: var(--blue);
    font-size: 20px;
}

.faq-item[open] summary::after {
    content: "-";
}

.faq-answer {
    padding: 0 46px 22px 0;
    color: var(--ink-soft);
    font-size: 15px;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

/* 深蓝收束通栏 ----------------------------------------------------------- */

.sec-final {
    padding: 0;
}

.cta-band {
    position: relative;
    background: var(--navy);
    color: #ffffff;
    overflow: hidden;
}

.cta-band img {
    position: absolute;
    inset: 0;
    aspect-ratio: 32 / 9;
    height: 100%;
    max-height: none;
    opacity: 0.34;
}

.cta-inner {
    position: relative;
    padding: 96px 24px;
    text-align: center;
}

.cta-inner h2 {
    font-size: 30px;
}

.cta-inner p {
    margin: 18px auto 30px;
    max-width: 62ch;
    color: #c8d5e8;
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
}

/* Footer 两层 ------------------------------------------------------------ */

.site-foot {
    background: var(--navy-deep);
    color: #b9c7dc;
    font-size: 14px;
}

.foot-top {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
    gap: 40px;
    padding: 58px 0 44px;
}

.foot-brand strong {
    display: block;
    font-size: 20px;
    color: #ffffff;
    margin-bottom: 12px;
}

.foot-brand p {
    margin: 0;
    color: #93a6c2;
}

.foot-col h3 {
    font-size: 15px;
    color: #ffffff;
    margin-bottom: 14px;
}

.foot-col li {
    margin-bottom: 10px;
}

.foot-col a:hover,
.foot-col a:focus {
    color: #ffffff;
    text-decoration: underline;
}

.foot-bottom {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 26px;
    justify-content: space-between;
    padding: 20px 0 26px;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.foot-bottom p {
    margin: 0;
}

.foot-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 22px;
}

/* 内页公共：页头 --------------------------------------------------------- */

.page-head {
    padding: 58px 0 46px;
    background: var(--paper-alt);
    border-bottom: 1px solid var(--line);
}

.page-head h1 {
    font-size: 32px;
    max-width: 30ch;
}

.page-head .lede {
    margin-top: 18px;
    max-width: 78ch;
    color: var(--ink-soft);
}

.crumb {
    margin: 0 0 14px;
    font-size: 13px;
    color: var(--ink-mute);
}

.crumb a {
    color: var(--blue);
}

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

.intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-intro img {
    aspect-ratio: 5 / 4;
    max-height: 430px;
}

.pillar-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
}

.about-pillars li {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 20px;
    padding: 22px 0;
    border-top: 1px solid var(--line);
}

.pillar-no {
    font-size: 15px;
    letter-spacing: 0.2em;
    color: var(--blue);
}

.about-pillars strong {
    display: block;
    font-size: 17px;
    margin-bottom: 4px;
}

.about-pillars p {
    margin: 0;
    font-size: 15px;
    color: var(--ink-soft);
}

.pillar-visual img {
    aspect-ratio: 3 / 4;
    max-height: 480px;
}

.about-quote {
    background: var(--navy);
    color: #ffffff;
    padding: 76px 0;
}

.about-quote h2 {
    margin: 0 0 26px;
    font-size: 18px;
    letter-spacing: 0.24em;
    text-align: center;
    color: #9fb2cd;
}

.about-quote blockquote {
    margin: 0 auto;
    max-width: 46ch;
    font-size: 24px;
    line-height: 1.7;
    text-align: center;
}

.about-quote p.quote-from {
    margin: 22px 0 0;
    text-align: center;
    color: #a9bcd8;
    font-size: 14px;
}

.about-cta {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: center;
}

.about-cta img {
    aspect-ratio: 32 / 9;
    max-height: 200px;
}

.about-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 24px;
}

/* product ---------------------------------------------------------------- */

.prod-layout {
    display: grid;
    grid-template-columns: 262px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
}

.prod-index {
    position: sticky;
    top: 122px;
    background: var(--paper-alt);
    border: 1px solid var(--line);
    padding: 24px 22px;
}

.prod-index h2 {
    font-size: 17px;
    margin-bottom: 14px;
}

.prod-index ol li {
    border-top: 1px solid var(--line);
}

.prod-index ol a {
    display: block;
    padding: 11px 0;
    font-size: 15px;
    color: var(--ink-soft);
}

.prod-index ol a:hover,
.prod-index ol a:focus {
    color: var(--blue);
}

.prod-index .index-note {
    margin: 16px 0 0;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    font-size: 13px;
    color: var(--ink-mute);
}

.prod-block {
    padding: 34px 0 40px;
    border-bottom: 1px solid var(--line);
}

.prod-block:first-child {
    padding-top: 0;
}

.prod-block img {
    aspect-ratio: 16 / 9;
    max-height: 330px;
    margin-bottom: 22px;
    object-position: 50% 30%;
}

.prod-block h2 {
    margin-bottom: 14px;
}

.prod-block .position {
    font-size: 15px;
    color: var(--ink-soft);
    max-width: 72ch;
}

.prod-spec {
    margin: 24px 0 0;
    border-top: 1px solid var(--line);
}

.prod-spec div {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 20px;
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
}

.prod-spec dt {
    font-size: 14px;
    color: var(--ink-mute);
}

.prod-spec dd {
    margin: 0;
    font-size: 15px;
}

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

.news-lead {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 42px;
    align-items: center;
}

.news-lead img {
    aspect-ratio: 16 / 9;
    max-height: 360px;
    object-position: 46% 30%;
}

.news-lead h2.lead-title {
    padding-left: 0;
    font-size: 26px;
    margin-bottom: 14px;
}

.news-lead h2.lead-title::before {
    display: none;
}

.news-lead .lead-meta {
    margin: 0 0 14px;
    font-size: 13px;
    color: var(--ink-mute);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}

.news-card {
    background: #ffffff;
    border: 1px solid var(--line);
}

.news-card img {
    aspect-ratio: 4 / 3;
    max-height: 230px;
    border-bottom: 1px solid var(--line);
    object-position: 50% 36%;
}

.news-card h3 {
    margin: 18px 20px 8px;
    font-size: 18px;
}

.news-card p {
    margin: 0 20px 20px;
    font-size: 14px;
    color: var(--ink-soft);
}

.table-scroll {
    overflow-x: auto;
    border: 1px solid var(--line);
    background: #ffffff;
}

.news-index {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    font-size: 15px;
}

.news-index caption {
    padding: 14px 18px;
    text-align: left;
    font-size: 13px;
    color: var(--ink-mute);
}

.news-index th,
.news-index td {
    padding: 13px 18px;
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.news-index th {
    background: var(--paper-alt);
    font-size: 14px;
    color: var(--ink-soft);
}

.news-index tr:last-child td {
    border-bottom: 0;
}

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

.contact-intro {
    display: grid;
    grid-template-columns: 1.1fr minmax(0, 1fr);
    gap: 44px;
    align-items: center;
}

.contact-intro img {
    aspect-ratio: 3 / 2;
    max-height: 330px;
}

.contact-split {
    display: grid;
    grid-template-columns: 1.1fr minmax(0, 1fr);
    gap: 46px;
    align-items: start;
}

.info-block {
    padding: 22px 0;
    border-top: 1px solid var(--line);
}

.info-block h3 {
    font-size: 17px;
    margin-bottom: 8px;
}

.info-block p {
    margin: 0;
    font-size: 15px;
    color: var(--ink-soft);
}

.contact-form {
    background: var(--paper-alt);
    border: 1px solid var(--line);
    padding: 30px 28px 32px;
}

.field {
    margin-bottom: 18px;
}

.field label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--ink-soft);
}

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--font);
    font-size: 15px;
    color: var(--ink);
    background: #ffffff;
    border: 1px solid var(--line-strong);
    -webkit-appearance: none;
    appearance: none;
}

.field textarea {
    min-height: 132px;
    resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: 2px solid var(--blue);
    outline-offset: -1px;
}

.form-note {
    margin: 14px 0 0;
    font-size: 13px;
    color: var(--ink-mute);
}

.form-status {
    margin: 16px 0 0;
    font-size: 14px;
    color: var(--blue-dark);
}

.contact-faq-mini {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 40px;
    align-items: start;
}

.mini-faq li {
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.mini-faq strong {
    display: block;
    margin-bottom: 6px;
    font-size: 16px;
}

.mini-faq p {
    margin: 0;
    font-size: 14px;
    color: var(--ink-soft);
}

.mini-faq a {
    color: var(--blue);
    border-bottom: 1px solid var(--blue);
}

.mini-visual img {
    aspect-ratio: 1 / 1;
    max-height: 300px;
}

/* sports ----------------------------------------------------------------- */

.sport-hero {
    padding: 52px 0 0;
}

.sport-hero h1 {
    font-size: 34px;
    max-width: 32ch;
}

.sport-hero .lede {
    margin: 18px 0 30px;
    max-width: 78ch;
    color: var(--ink-soft);
}

.sport-hero img {
    aspect-ratio: 21 / 9;
    max-height: 460px;
    object-position: 50% 72%;
}

.sport-rail {
    background: var(--navy);
}

.rail-inner {
    display: flex;
    align-items: center;
    gap: 0;
    overflow-x: auto;
}

.rail-inner a {
    flex: 0 0 auto;
    padding: 18px 24px;
    font-size: 15px;
    color: #c9d6ea;
    border-right: 1px solid rgba(255, 255, 255, 0.16);
    white-space: nowrap;
}

.rail-inner a:hover,
.rail-inner a:focus {
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.rail-note {
    margin: 0;
    padding: 12px 0 14px;
    font-size: 13px;
    color: var(--ink-mute);
}

.sport-detail-block {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 48px;
    align-items: center;
    padding: 40px 0;
    border-bottom: 1px solid var(--line);
}

.sport-detail-block.is-flipped .detail-copy {
    order: 2;
}

.sport-detail-block img {
    max-height: 380px;
}

.sport-detail-block .ratio-3x4 img,
.sport-detail-block img.ratio-3x4 {
    aspect-ratio: 3 / 4;
}

.sport-detail-block img.ratio-4x3 {
    aspect-ratio: 4 / 3;
}

.sport-detail-block img.ratio-16x9 {
    aspect-ratio: 16 / 9;
}

.detail-copy h2 {
    position: relative;
    padding-left: 18px;
    font-size: 22px;
    margin-bottom: 12px;
}

.detail-copy h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.3em;
    width: 4px;
    height: 0.86em;
    background: var(--blue);
}

.prod-closing {
    padding: 36px 0 0;
}

.prod-closing h2 {
    margin-bottom: 14px;
}

.detail-copy p {
    font-size: 15px;
    color: var(--ink-soft);
}

.sport-flow {
    counter-reset: flow;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    margin-top: 32px;
}

.sport-flow li {
    position: relative;
    padding: 24px 20px;
    background: #ffffff;
    border: 1px solid var(--line);
}

.sport-flow li::before {
    counter-increment: flow;
    content: counter(flow);
    display: block;
    margin-bottom: 12px;
    font-size: 15px;
    color: var(--blue);
    letter-spacing: 0.2em;
}

.sport-flow strong {
    display: block;
    margin-bottom: 6px;
    font-size: 16px;
}

.sport-flow span {
    font-size: 14px;
    color: var(--ink-soft);
}

/* 响应式 ----------------------------------------------------------------- */

@media (max-width: 1080px) {
    .hero-copy h1 {
        font-size: 34px;
    }

    .hero-copy,
    .hero-visual {
        grid-column: 1 / -1;
    }

    .play-split,
    .intro-grid,
    .pillar-layout,
    .about-cta,
    .news-stack,
    .news-lead,
    .contact-intro,
    .contact-split,
    .contact-faq-mini,
    .sport-detail-block {
        grid-template-columns: minmax(0, 1fr);
    }

    .sport-detail-block.is-flipped .detail-copy {
        order: 0;
    }

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

    .prod-index {
        position: static;
    }

    .family-grid,
    .news-grid,
    .client-rail {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .tech-row {
        grid-template-columns: 60px minmax(0, 1fr);
        gap: 12px 20px;
    }

    .tech-row p {
        grid-column: 2 / 3;
    }
}

@media (max-width: 900px) {
    .main-nav,
    .bar-actions {
        display: none;
    }

    .nav-toggle {
        display: block;
        margin-left: auto;
    }

    .drawer {
        display: block;
    }

    body.js-on .drawer {
        display: none;
    }

    body.js-on .drawer.is-open {
        display: block;
    }

    .foot-top {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
        gap: 30px;
    }
}

@media (max-width: 640px) {
    :root {
        --sec-space: 58px;
    }

    .wrap {
        padding: 0 18px;
    }

    .util-note {
        display: none;
    }

    .util-inner {
        justify-content: flex-start;
        gap: 18px;
    }

    .hero {
        padding-top: 44px;
    }

    .hero-copy h1,
    .page-head h1,
    .sport-hero h1 {
        font-size: 26px;
    }

    .sec h2,
    .cta-inner h2 {
        font-size: 22px;
    }

    .family-grid,
    .news-grid,
    .client-rail,
    .support-grid,
    .sport-flow,
    .foot-top {
        grid-template-columns: minmax(0, 1fr);
    }

    .support-cell {
        border-right: 0;
    }

    .support-cell:nth-last-child(-n + 2) {
        border-bottom: 1px solid var(--line);
    }

    .support-cell:last-child {
        border-bottom: 0;
    }

    .news-row {
        grid-template-columns: 96px minmax(0, 1fr);
    }

    .prod-spec div {
        grid-template-columns: minmax(0, 1fr);
        gap: 4px;
    }

    .cta-inner {
        padding: 64px 18px;
    }

    .about-quote blockquote {
        font-size: 19px;
    }
}