/* ==========================================================================
   MKsports 一站式服务门户 —— 深海军蓝双层次底 / 直角卡片 / 左侧竖线强调
   两层次级底色交替切段，亮蓝只用于交互，青绿只用于数据与状态点。
   ========================================================================== */

:root {
    --mk-deep: #0b1a2e;
    --mk-panel: #0f2745;
    --mk-line: #1e3a5f;
    --mk-text: #e8eef7;
    --mk-muted: #9fb4cf;
    --mk-blue: #3f8cff;
    --mk-teal: #2fd4b0;
    --mk-shell: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

html body {
    background-color: var(--mk-deep);
    color: var(--mk-text);
    font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.85;
    overflow-x: hidden;
}

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

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

body img {
    display: block;
    width: 100%;
    object-fit: cover;
    max-height: 460px;
    background-color: var(--mk-panel);
}

body p {
    color: var(--mk-text);
}

.shell {
    width: 100%;
    max-width: var(--mk-shell);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

/* ---------- 小标签与标题 ---------- */

.kicker {
    display: block;
    font-size: 12px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--mk-teal);
    margin-bottom: 10px;
}

body h1,
body h2,
body h3 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: 0.01em;
}

body h2 {
    font-size: 30px;
    line-height: 1.3;
}

body h3 {
    font-size: 18px;
    line-height: 1.45;
}

.lead {
    color: var(--mk-muted);
    font-size: 16px;
    line-height: 1.85;
}

/* ---------- 按钮 ---------- */

.btn {
    display: inline-block;
    padding: 11px 22px;
    font-size: 14px;
    letter-spacing: 0.06em;
    border: 1px solid var(--mk-blue);
    border-radius: 0;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-solid {
    background-color: var(--mk-blue);
    color: #06131f;
    font-weight: 600;
}

.btn-ghost {
    background-color: transparent;
    color: var(--mk-text);
}

.btn:hover,
.btn:focus {
    background-color: #6ba6ff;
    color: #06131f;
}

/* ---------- 顶部深色导航 ---------- */

.dark-bar {
    position: sticky;
    top: 0;
    z-index: 40;
    background-color: var(--mk-deep);
    border-bottom: 1px solid transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.dark-bar.is-scrolled {
    background-color: #081426;
    border-bottom-color: var(--mk-line);
}

.bar-inner {
    max-width: var(--mk-shell);
    margin: 0 auto;
    padding: 0 24px;
    height: 68px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.brand-mark {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--mk-panel);
    border-left: 3px solid var(--mk-blue);
    color: var(--mk-blue);
    font-size: 15px;
}

.brand-text {
    font-size: 17px;
    font-weight: 600;
}

.brand-sub {
    display: block;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.18em;
    color: var(--mk-muted);
}

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

.nav-list {
    display: flex;
    align-items: center;
    gap: 22px;
}

.nav-item > a {
    display: inline-block;
    padding: 6px 2px;
    font-size: 15px;
    color: var(--mk-text);
    border-bottom: 2px solid transparent;
}

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

.nav-item.is-current > a {
    border-bottom-color: var(--mk-blue);
}

.has-mega {
    position: relative;
}

.mega {
    position: absolute;
    top: 100%;
    left: -18px;
    width: 660px;
    display: none;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    background-color: var(--mk-panel);
    border: 1px solid var(--mk-line);
}

.has-mega:hover .mega,
.has-mega:focus-within .mega,
.has-mega.is-open .mega {
    display: grid;
}

.mega-col {
    padding: 18px 20px 20px;
    border-right: 1px solid var(--mk-line);
}

.mega-col:last-child {
    border-right: 0;
}

.mega-title {
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mk-teal);
    margin-bottom: 10px;
}

.mega-col li {
    line-height: 1.6;
}

.mega-col li a {
    font-size: 14px;
    color: var(--mk-muted);
}

.mega-col li a:hover,
.mega-col li a:focus {
    color: var(--mk-blue);
}

.bar-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 0 0 auto;
}

.bar-status {
    font-size: 12px;
    color: var(--mk-muted);
    white-space: nowrap;
}

.bar-status i {
    color: var(--mk-teal);
    font-size: 8px;
    margin-right: 6px;
}

.nav-toggle {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background-color: transparent;
    border: 1px solid var(--mk-line);
    color: var(--mk-text);
    font-size: 14px;
    border-radius: 0;
    cursor: pointer;
}

/* ---------- 首屏 ---------- */

.data-hero {
    background-color: var(--mk-deep);
    border-bottom: 1px solid var(--mk-line);
    padding: 56px 0 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    align-items: start;
}

.hero-left h1 {
    font-size: 42px;
    line-height: 1.24;
    margin-bottom: 18px;
}

.hero-left .lead {
    max-width: 60ch;
    margin-bottom: 26px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--mk-line);
    border-bottom: 1px solid var(--mk-line);
    margin-bottom: 26px;
}

.hero-metrics li {
    padding: 14px 16px 14px 0;
}

.hero-metrics strong {
    display: block;
    font-size: 26px;
    color: var(--mk-teal);
    line-height: 1.2;
}

.hero-metrics span {
    display: block;
    font-size: 14px;
    color: var(--mk-text);
}

.hero-metrics small {
    display: block;
    font-size: 11px;
    letter-spacing: 0.12em;
    color: var(--mk-muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.hero-right {
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
    background-color: var(--mk-panel);
}

.hero-right img {
    aspect-ratio: 4 / 5;
    max-height: 480px;
    object-position: center 32%;
}

.hero-right figcaption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--mk-muted);
    border-top: 1px solid var(--mk-line);
}

.hero-strip {
    margin-top: 48px;
    border-top: 1px solid var(--mk-line);
    padding: 22px 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.strip-head {
    grid-column: 1 / -1;
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--mk-muted);
}

.hero-strip li {
    font-size: 15px;
    padding-left: 12px;
    border-left: 3px solid var(--mk-blue);
    color: var(--mk-text);
}

/* ---------- 区块通用 ---------- */

.band {
    padding: 66px 0;
    border-bottom: 1px solid var(--mk-line);
}

.band-alt {
    background-color: var(--mk-panel);
}

.band-head {
    max-width: 760px;
    margin-bottom: 34px;
}

.band-head h2 {
    margin-bottom: 12px;
}

.band-more {
    margin-top: 28px;
    font-size: 14px;
}

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

/* ---------- 解决方案卡 ---------- */

.sol-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.sol-card {
    background-color: var(--mk-deep);
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
    padding: 22px 22px 20px;
}

.band-alt .sol-card {
    background-color: var(--mk-panel);
}

.sol-card figure {
    margin: -22px -22px 18px;
}

.sol-card img {
    aspect-ratio: 16 / 11;
    max-height: 220px;
    object-position: center 22%;
}

.sol-card h3 {
    margin-bottom: 10px;
}

.sol-card li {
    position: relative;
    padding-left: 14px;
    font-size: 14px;
    color: var(--mk-muted);
    line-height: 1.75;
}

.sol-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 5px;
    height: 1px;
    background-color: var(--mk-teal);
}

/* ---------- 赛事分栏 ---------- */

.event-layout {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 40px;
    align-items: start;
}

.event-copy p {
    margin-bottom: 16px;
    color: var(--mk-muted);
}

.event-copy figure {
    margin-top: 22px;
    border: 1px solid var(--mk-line);
}

.event-copy img {
    aspect-ratio: 16 / 9;
    max-height: 300px;
    object-position: center 45%;
}

.event-list li {
    padding: 16px 0;
    border-top: 1px solid var(--mk-line);
}

.event-list li:last-child {
    border-bottom: 1px solid var(--mk-line);
}

.event-tag {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--mk-teal);
    margin-right: 10px;
}

.event-list h3 {
    display: inline;
    font-size: 16px;
}

.event-list p {
    margin-top: 6px;
    font-size: 14px;
    color: var(--mk-muted);
}

/* ---------- 电竞模块行 ---------- */

.modu-row {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 30px;
}

.modu i {
    font-size: 22px;
    color: var(--mk-blue);
    margin-bottom: 14px;
}

.modu h3 {
    margin-bottom: 10px;
}

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

/* ---------- 客户端分屏 ---------- */

.client-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--mk-line);
}

.client-plat {
    padding: 26px 28px;
}

.client-plat li {
    padding: 14px 0;
    border-bottom: 1px solid var(--mk-line);
}

.client-plat li:last-child {
    border-bottom: 0;
}

.client-plat h3 {
    font-size: 16px;
}

.client-plat p {
    font-size: 14px;
    color: var(--mk-muted);
}

.client-figure {
    border-left: 1px solid var(--mk-line);
}

.client-figure img {
    height: 100%;
    aspect-ratio: 5 / 4;
    max-height: 420px;
    object-position: 18% center;
}

.client-split + .band-more {
    margin-top: 20px;
}

/* ---------- 五步路径 ---------- */

.tech-split {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.tech-steps {
    counter-reset: tech;
}

.tech-steps li {
    counter-increment: tech;
    position: relative;
    padding: 0 0 20px 58px;
    border-left: 1px solid var(--mk-line);
    margin-left: 18px;
}

.tech-steps li:last-child {
    border-left-color: transparent;
}

.tech-steps li::before {
    content: counter(tech, decimal-leading-zero);
    position: absolute;
    left: -18px;
    top: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--mk-teal);
    background-color: var(--mk-deep);
    border: 1px solid var(--mk-line);
}

.tech-steps h3 {
    margin-bottom: 6px;
    padding-top: 5px;
}

.tech-steps p {
    font-size: 14px;
    color: var(--mk-muted);
}

.tech-visual {
    border: 1px solid var(--mk-line);
    border-top: 3px solid var(--mk-blue);
}

.tech-visual img {
    aspect-ratio: 3 / 2;
    max-height: 320px;
    object-position: center 38%;
}

.tech-visual figcaption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--mk-muted);
    border-top: 1px solid var(--mk-line);
}

/* ---------- 资讯栅格 ---------- */

.nc-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 26px;
}

.nc-main {
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
    padding-bottom: 20px;
}

.nc-main img {
    aspect-ratio: 12 / 5;
    max-height: 260px;
    object-position: center 40%;
}

.nc-main h3,
.nc-main p,
.nc-main .nc-meta {
    padding-left: 22px;
    padding-right: 22px;
}

.nc-main h3 {
    margin: 18px 0 8px;
}

.nc-main p {
    font-size: 14px;
    color: var(--mk-muted);
}

.nc-meta {
    display: block;
    margin-top: 12px;
    font-size: 12px;
    letter-spacing: 0.14em;
    color: var(--mk-teal);
}

.nc-side {
    display: grid;
    gap: 20px;
}

.nc-side article {
    border: 1px solid var(--mk-line);
    background-color: var(--mk-deep);
    padding-bottom: 14px;
}

.band-alt .nc-side article {
    background-color: var(--mk-panel);
}

.nc-side img {
    aspect-ratio: 4 / 3;
    max-height: 160px;
    object-position: 82% center;
}

.nc-side h3,
.nc-side p {
    padding-left: 18px;
    padding-right: 18px;
}

.nc-side h3 {
    font-size: 16px;
    margin: 14px 0 6px;
}

.nc-side p {
    font-size: 14px;
    color: var(--mk-muted);
}

/* ---------- 支持方格 ---------- */

.sup-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background-color: var(--mk-line);
    border: 1px solid var(--mk-line);
}

.sup-item {
    display: block;
    background-color: var(--mk-deep);
    padding: 24px 26px;
    transition: background-color 0.2s ease;
}

.sup-item i {
    font-size: 18px;
    color: var(--mk-teal);
}

.sup-item h3 {
    margin: 12px 0 8px;
}

.sup-item p {
    font-size: 14px;
    color: var(--mk-muted);
}

.sup-item:hover,
.sup-item:focus {
    background-color: var(--mk-panel);
}

.sup-item:hover i,
.sup-item:focus i {
    color: var(--mk-blue);
}

.sup-figure {
    max-width: 220px;
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-teal);
    margin-left: auto;
}

.sup-figure img {
    aspect-ratio: 1 / 1;
    max-height: 180px;
    object-position: center 40%;
}

/* ---------- 收尾通栏 ---------- */

.cta-dark {
    background-color: var(--mk-panel);
    border-top: 1px solid var(--mk-line);
    border-bottom: 1px solid var(--mk-line);
}

.cta-dark figure img {
    aspect-ratio: 5 / 2;
    max-height: 300px;
    object-position: center 52%;
}

.cta-inner {
    padding: 46px 0 50px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
    align-items: center;
}

.cta-inner h2 {
    margin-bottom: 12px;
}

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

/* ---------- 页脚 ---------- */

.dark-foot {
    background-color: var(--mk-deep);
    padding-top: 54px;
}

.foot-inner {
    max-width: var(--mk-shell);
    margin: 0 auto;
    padding: 0 24px;
}

.foot-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 30px;
    padding-bottom: 36px;
}

.foot-title {
    margin-bottom: 14px;
    border-left: 3px solid var(--mk-blue);
    padding-left: 10px;
}

.foot-en {
    display: block;
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--mk-teal);
}

.foot-cn {
    display: block;
    font-size: 15px;
    font-weight: 600;
}

.foot-links li {
    line-height: 1.9;
}

.foot-links a {
    font-size: 14px;
    color: var(--mk-muted);
}

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

.foot-bottom {
    border-top: 1px solid var(--mk-line);
    padding: 20px 0 26px;
}

.foot-note {
    font-size: 13px;
    color: var(--mk-muted);
}

/* ---------- 内页页头 ---------- */

.page-head {
    background-color: var(--mk-panel);
    border-bottom: 1px solid var(--mk-line);
    padding: 52px 0 46px;
}

.page-head h1 {
    font-size: 36px;
    line-height: 1.3;
    margin-bottom: 14px;
    max-width: 22ch;
}

.page-head .lead {
    max-width: 68ch;
}

.head-split {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 40px;
    align-items: end;
}

.head-facts {
    border-left: 3px solid var(--mk-blue);
    padding-left: 18px;
}

.head-facts li {
    font-size: 14px;
    color: var(--mk-muted);
    padding: 6px 0;
    border-bottom: 1px solid var(--mk-line);
}

.head-facts li:last-child {
    border-bottom: 0;
}

.head-facts strong {
    color: var(--mk-teal);
    font-weight: 600;
}

.head-band {
    margin-top: 34px;
    border: 1px solid var(--mk-line);
}

.head-band img {
    aspect-ratio: 21 / 9;
    max-height: 280px;
    object-position: center 42%;
}

/* ---------- about 页 ---------- */

.val-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--mk-line);
}

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

.val-cell:nth-child(3n) {
    border-right: 0;
}

.val-cell h3 {
    margin-bottom: 8px;
    font-size: 17px;
}

.val-cell p {
    font-size: 14px;
    color: var(--mk-muted);
}

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

.org-row {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 26px;
    padding: 20px 0;
    border-bottom: 1px solid var(--mk-line);
}

.org-row h3 {
    font-size: 16px;
    color: var(--mk-teal);
}

.org-row p {
    font-size: 15px;
    color: var(--mk-muted);
}

.org-figure {
    margin: 30px 0 0;
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
}

.org-figure img {
    aspect-ratio: 4 / 3;
    max-height: 340px;
    object-position: 26% center;
}

.org-figure figcaption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--mk-muted);
    border-top: 1px solid var(--mk-line);
}

.qa-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.qa-card {
    background-color: var(--mk-deep);
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-teal);
    padding: 20px 22px;
}

.band-alt .qa-card {
    background-color: var(--mk-panel);
}

.qa-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

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

.close-strip {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 26px;
    align-items: center;
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
    padding: 24px 26px;
    background-color: var(--mk-panel);
}

.close-strip h2 {
    font-size: 22px;
    margin-bottom: 8px;
}

.close-strip p {
    font-size: 14px;
    color: var(--mk-muted);
}

/* ---------- product 页 ---------- */

.anchor-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 0;
    border-bottom: 1px solid var(--mk-line);
}

.anchor-row a {
    font-size: 13px;
    letter-spacing: 0.08em;
    padding: 6px 14px;
    border: 1px solid var(--mk-line);
    color: var(--mk-muted);
}

.anchor-row a:hover,
.anchor-row a:focus {
    border-color: var(--mk-blue);
    color: var(--mk-blue);
}

.prod-line {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--mk-line);
}

.prod-col {
    padding: 24px 26px;
}

.prod-col:first-child {
    border-right: 1px solid var(--mk-line);
}

.prod-col h3 {
    font-size: 16px;
    margin-bottom: 10px;
}

.prod-col p {
    font-size: 14px;
    color: var(--mk-muted);
    margin-bottom: 12px;
}

.prod-col li {
    font-size: 14px;
    color: var(--mk-text);
    padding: 6px 0 6px 16px;
    position: relative;
}

.prod-col li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 15px;
    width: 7px;
    height: 1px;
    background-color: var(--mk-blue);
}

.prod-figure {
    margin-top: 22px;
    border: 1px solid var(--mk-line);
}

.prod-figure img {
    aspect-ratio: 16 / 9;
    max-height: 280px;
    object-position: center 35%;
}

.tier-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.tier-card {
    border: 1px solid var(--mk-line);
    border-top: 3px solid var(--mk-teal);
    padding: 20px 22px;
    background-color: var(--mk-panel);
}

.tier-card h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.tier-card p {
    font-size: 14px;
    color: var(--mk-muted);
}

/* ---------- news 页 ---------- */

.news-ribbon {
    background-color: #e8eef7;
    color: #0b1a2e;
    padding: 40px 0 36px;
    border-bottom: 3px solid var(--mk-blue);
}

.news-ribbon h1 {
    font-size: 34px;
    line-height: 1.3;
    color: #0b1a2e;
    margin-bottom: 12px;
}

.news-ribbon p {
    color: #33465e;
    max-width: 76ch;
}

.ribbon-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 14px;
    color: #1c5fc4;
    border-bottom: 1px solid #1c5fc4;
}

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

.news-col {
    padding: 0 26px 26px;
    border-right: 1px solid var(--mk-line);
}

.news-col:first-child {
    padding-left: 0;
}

.news-col:last-child {
    border-right: 0;
    padding-right: 0;
}

.news-col h2 {
    font-size: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--mk-line);
    margin-bottom: 6px;
}

.news-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--mk-line);
}

.news-item h3 {
    font-size: 15px;
    margin-bottom: 4px;
}

.news-item p {
    font-size: 13px;
    color: var(--mk-muted);
}

.news-tag {
    display: block;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mk-teal);
    margin-bottom: 4px;
}

.news-quarter {
    display: block;
    font-size: 12px;
    color: var(--mk-muted);
    margin-top: 6px;
}

.note-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.note-row article {
    border-left: 3px solid var(--mk-blue);
    padding-left: 18px;
}

.note-row h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

.note-row p {
    font-size: 14px;
    color: var(--mk-muted);
}

/* ---------- contact 页 ---------- */

.contact-biz {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: 0;
    border: 1px solid var(--mk-line);
}

.biz-info {
    padding: 28px 30px;
    border-right: 1px solid var(--mk-line);
}

.biz-info h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.biz-info p {
    font-size: 14px;
    color: var(--mk-muted);
    margin-bottom: 14px;
}

.biz-info li {
    padding: 12px 0;
    border-top: 1px solid var(--mk-line);
}

.biz-info li strong {
    display: block;
    font-size: 15px;
    color: var(--mk-text);
}

.biz-info li span {
    font-size: 13px;
    color: var(--mk-muted);
}

.biz-figure {
    margin-top: 22px;
    border: 1px solid var(--mk-line);
}

.biz-figure img {
    aspect-ratio: 1 / 1;
    max-height: 220px;
    object-position: 70% center;
}

.biz-form {
    padding: 28px 30px;
    background-color: var(--mk-panel);
}

.biz-form h2 {
    font-size: 24px;
    margin-bottom: 8px;
}

.biz-form p {
    font-size: 14px;
    color: var(--mk-muted);
    margin-bottom: 16px;
}

.field {
    margin-bottom: 16px;
}

.field label {
    display: block;
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--mk-muted);
    margin-bottom: 6px;
}

.field select,
.field input,
.field textarea {
    width: 100%;
    padding: 11px 12px;
    background-color: var(--mk-deep);
    border: 1px solid var(--mk-line);
    border-radius: 0;
    color: var(--mk-text);
    font-family: inherit;
    font-size: 14px;
}

.field textarea {
    min-height: 120px;
    resize: vertical;
}

.field select:focus,
.field input:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--mk-blue);
}

.form-status {
    margin-top: 14px;
    font-size: 14px;
    color: var(--mk-teal);
    min-height: 22px;
}

.flow-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.flow-row div {
    border-top: 3px solid var(--mk-blue);
    padding-top: 16px;
}

.flow-row h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.flow-row p {
    font-size: 14px;
    color: var(--mk-muted);
}

.entry-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.entry-list a {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 14px;
    padding: 18px 20px;
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-teal);
    background-color: var(--mk-deep);
}

.band-alt .entry-list a {
    background-color: var(--mk-panel);
}

.entry-list i {
    color: var(--mk-blue);
    font-size: 18px;
    padding-top: 3px;
}

.entry-list h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.entry-list p {
    font-size: 14px;
    color: var(--mk-muted);
}

.entry-list a:hover,
.entry-list a:focus {
    border-left-color: var(--mk-blue);
}

/* ---------- service 页 ---------- */

.svc-hero {
    background-color: var(--mk-panel);
    border-bottom: 1px solid var(--mk-line);
    padding: 52px 0 46px;
}

.svc-hero h1 {
    font-size: 36px;
    line-height: 1.3;
    margin-bottom: 14px;
    max-width: 24ch;
}

.svc-hero .lead {
    max-width: 70ch;
}

.svc-block {
    display: grid;
    grid-template-columns: 88px 1fr 1fr;
    gap: 30px;
    align-items: start;
    padding: 34px 0;
    border-bottom: 1px solid var(--mk-line);
}

.svc-num {
    font-size: 30px;
    color: var(--mk-teal);
    border-left: 3px solid var(--mk-blue);
    padding-left: 14px;
    line-height: 1.1;
}

.svc-text h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.svc-text p {
    font-size: 15px;
    color: var(--mk-muted);
    margin-bottom: 12px;
}

.svc-text li {
    font-size: 14px;
    color: var(--mk-text);
    padding: 5px 0 5px 16px;
    position: relative;
}

.svc-text li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 14px;
    width: 7px;
    height: 1px;
    background-color: var(--mk-teal);
}

.svc-media {
    border: 1px solid var(--mk-line);
}

.svc-media img {
    aspect-ratio: 16 / 10;
    max-height: 250px;
    object-position: center 30%;
}

.svc-block-flip .svc-text {
    order: 3;
}

.svc-block-flip .svc-media {
    order: 2;
}

.cmp-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--mk-line);
}

.cmp-table caption {
    text-align: left;
    font-size: 13px;
    color: var(--mk-muted);
    padding-bottom: 10px;
}

.cmp-table th,
.cmp-table td {
    text-align: left;
    padding: 14px 18px;
    font-size: 14px;
    border-bottom: 1px solid var(--mk-line);
    vertical-align: top;
}

.cmp-table thead th {
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--mk-teal);
    background-color: var(--mk-panel);
}

.cmp-table td:first-child {
    color: var(--mk-text);
    width: 32%;
}

.cmp-table td {
    color: var(--mk-muted);
}

.svc-cta {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 30px;
    align-items: center;
    border: 1px solid var(--mk-line);
    border-left: 3px solid var(--mk-blue);
    background-color: var(--mk-panel);
    padding: 30px 32px;
}

.svc-cta h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.svc-cta p {
    font-size: 14px;
    color: var(--mk-muted);
}

.svc-cta .cta-actions {
    justify-content: flex-start;
}

.foot-band img {
    aspect-ratio: 21 / 9;
    max-height: 220px;
    object-position: center 55%;
}

/* ---------- 内页补充：矩阵 / 摘要带 / 问答 / 编号块 ---------- */

.prod-matrix {
    margin-bottom: 24px;
}

.prod-figure-tall img {
    aspect-ratio: 4 / 3;
    max-height: 320px;
    object-position: 26% center;
}

.ribbon-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 34px;
    align-items: center;
}

.ribbon-thumb {
    border: 1px solid #c3cfdf;
    border-left: 3px solid #1c5fc4;
}

.ribbon-thumb img {
    aspect-ratio: 2 / 1;
    max-height: 150px;
    object-position: 30% center;
}

.dense-lead {
    max-width: 82ch;
    margin-bottom: 30px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--mk-line);
}

.upd-band {
    margin-top: 26px;
    border: 1px solid var(--mk-line);
}

.upd-band img {
    aspect-ratio: 21 / 9;
    max-height: 260px;
    object-position: center 62%;
}

.upd-band figcaption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--mk-muted);
    border-top: 1px solid var(--mk-line);
}

.fact-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 28px;
    border-top: 1px solid var(--mk-line);
}

.fact-strip li {
    padding: 16px 18px 4px 0;
    font-size: 14px;
    color: var(--mk-muted);
    border-right: 1px solid var(--mk-line);
}

.fact-strip li:last-child {
    border-right: 0;
}

.fact-strip strong {
    display: block;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--mk-teal);
    margin-bottom: 6px;
}

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

.faq-list article {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 26px;
    padding: 20px 0;
    border-bottom: 1px solid var(--mk-line);
}

.faq-list h3 {
    font-size: 16px;
    color: var(--mk-text);
}

.faq-list p {
    font-size: 14px;
    color: var(--mk-muted);
}

.svc-index {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    margin-top: 30px;
    padding-top: 18px;
    border-top: 1px solid var(--mk-line);
}

.svc-index li {
    font-size: 14px;
    color: var(--mk-muted);
    padding-left: 12px;
    border-left: 3px solid var(--mk-blue);
}

.svc-media-a img {
    aspect-ratio: 4 / 3;
    object-position: 78% center;
}

.svc-media-b img {
    aspect-ratio: 3 / 2;
    object-position: center 72%;
}

.svc-media-c img {
    aspect-ratio: 1 / 1;
    object-position: 22% center;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
    .hero-grid,
    .head-split,
    .cta-inner,
    .svc-cta {
        grid-template-columns: 1fr;
    }

    .sol-grid,
    .val-grid,
    .qa-grid,
    .tier-row,
    .note-row,
    .flow-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .modu-row {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }

    .cta-actions {
        justify-content: flex-start;
    }

    .svc-block {
        grid-template-columns: 64px 1fr;
    }

    .svc-block .svc-media {
        grid-column: 2 / 3;
    }

    .svc-block-flip .svc-text {
        order: 0;
    }

    .svc-block-flip .svc-media {
        order: 0;
    }
}

@media (max-width: 900px) {
    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    body.nav-js .main-nav {
        display: none;
    }

    body.nav-js .main-nav.is-open {
        display: block;
    }

    .main-nav {
        order: 4;
        flex: 1 0 100%;
        border-top: 1px solid var(--mk-line);
        padding: 10px 0 16px;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .nav-item > a {
        display: block;
        padding: 12px 2px;
        border-bottom: 1px solid var(--mk-line);
    }

    .mega {
        position: static;
        width: auto;
        grid-template-columns: 1fr;
        border: 0;
        border-top: 1px solid var(--mk-line);
    }

    .mega-col {
        padding: 12px 4px;
        border-right: 0;
        border-bottom: 1px solid var(--mk-line);
    }

    .bar-inner {
        flex-wrap: wrap;
        height: auto;
        padding-top: 12px;
        padding-bottom: 12px;
        gap: 12px;
    }

    .bar-right {
        order: 3;
        margin-left: 0;
    }

    .bar-status {
        display: none;
    }

    .event-layout,
    .tech-split,
    .client-split,
    .contact-biz,
    .nc-grid,
    .news-cols,
    .close-strip,
    .prod-line,
    .sup-grid,
    .entry-list,
    .ribbon-grid,
    .faq-list article {
        grid-template-columns: 1fr;
    }

    .faq-list article {
        gap: 8px;
    }

    .client-figure,
    .biz-info,
    .prod-col:first-child,
    .news-col {
        border-right: 0;
        border-left: 0;
    }

    .client-figure {
        border-left: 0;
        border-top: 1px solid var(--mk-line);
    }

    .biz-info {
        border-bottom: 1px solid var(--mk-line);
    }

    .prod-col:first-child {
        border-bottom: 1px solid var(--mk-line);
    }

    .news-col {
        padding: 0 0 22px;
        border-bottom: 1px solid var(--mk-line);
    }

    .org-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}

@media (max-width: 640px) {
    html body {
        font-size: 15px;
    }

    .shell,
    .bar-inner,
    .foot-inner {
        padding-left: 18px;
        padding-right: 18px;
    }

    .hero-left h1,
    .page-head h1,
    .svc-hero h1,
    .news-ribbon h1 {
        font-size: 28px;
    }

    body h2 {
        font-size: 23px;
    }

    .hero-metrics,
    .hero-strip,
    .sol-grid,
    .val-grid,
    .qa-grid,
    .tier-row,
    .note-row,
    .flow-row,
    .modu-row,
    .fact-strip,
    .foot-grid {
        grid-template-columns: 1fr;
    }

    .fact-strip li {
        border-right: 0;
        border-bottom: 1px solid var(--mk-line);
    }

    .svc-index {
        gap: 14px;
    }

    .hero-strip {
        gap: 12px;
    }

    .band {
        padding: 44px 0;
    }

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

    .svc-block {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .svc-block .svc-media {
        grid-column: 1 / 2;
    }

    .cmp-table th,
    .cmp-table td {
        padding: 10px 12px;
        font-size: 13px;
    }
}