/* =====================================================================
   ONE游戏官网 · 体育入口中心(Sports Gateway)
   站点级样式表 · 自定义类前缀 sg-
   配色:深蓝 #0A1D42 / 亮白 #FFFFFF / 电光蓝 #2E6BFF / 浅线 #DCE6F5
   响应式断点:1440px / 768px / 375px
   ===================================================================== */

/* ---------- 配色变量与基础 ---------- */
:root {
    --sg-navy: #0A1D42;
    --sg-white: #FFFFFF;
    --sg-blue: #2E6BFF;
    --sg-line: #DCE6F5;
    --sg-sky: #F4F8FF;
    --sg-ink: #24365C;
    --sg-mist: #7C8DB0;
    --sg-green: #1FBF6E;
    --sg-amber: #D98A00;
    --sg-shadow: 0 12px 32px rgba(10, 29, 66, 0.10);
    --sg-shadow-blue: 0 12px 32px rgba(46, 107, 255, 0.28);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
        "Noto Sans CJK SC", sans-serif;
    color: var(--sg-navy);
    background: var(--sg-white);
    line-height: 1.7;
}

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

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

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

.sg-container {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

section[id] {
    scroll-margin-top: 92px;
}

/* ---------- 通用区块 ---------- */
.sg-section {
    padding: 88px 0;
}

.sg-section--sky {
    background: var(--sg-sky);
}

.sg-section-head {
    max-width: 720px;
    margin-bottom: 44px;
}

.sg-section-head--center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.sg-kicker {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--sg-blue);
    margin: 0 0 12px;
}

.sg-kicker--light {
    color: #7FA3FF;
}

.sg-section-title {
    font-size: 30px;
    line-height: 1.35;
    margin: 0 0 14px;
    font-weight: 800;
}

.sg-section-intro {
    color: var(--sg-ink);
    margin: 0;
    font-size: 15px;
}

.sg-copy-block {
    color: var(--sg-ink);
    font-size: 15px;
    margin: 0;
}

/* ---------- 按钮 ---------- */
.sg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease,
        background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.sg-btn--primary {
    background: var(--sg-blue);
    color: var(--sg-white);
    box-shadow: var(--sg-shadow-blue);
}

.sg-btn--primary:hover {
    transform: translateY(-2px);
    background: #1F5AE8;
}

.sg-btn--ghost {
    background: transparent;
    color: var(--sg-navy);
    border-color: var(--sg-line);
}

.sg-btn--ghost:hover {
    border-color: var(--sg-blue);
    color: var(--sg-blue);
    transform: translateY(-2px);
}

.sg-btn--lg {
    padding: 15px 34px;
    font-size: 16px;
}

.sg-btn--sm {
    padding: 9px 18px;
    font-size: 14px;
}

.sg-hero .sg-btn--ghost {
    color: var(--sg-white);
    border-color: rgba(220, 230, 245, 0.4);
}

.sg-hero .sg-btn--ghost:hover {
    color: #7FA3FF;
    border-color: var(--sg-blue);
}

/* ---------- 页头:体育场入口式导航 ---------- */
.sg-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--sg-white);
    border-bottom: 1px solid var(--sg-line);
}

.sg-gate-line {
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        var(--sg-blue) 0 14px,
        transparent 14px 22px
    );
}

.sg-header__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 72px;
}

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

.sg-brand__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sg-blue);
    color: var(--sg-white);
    font-size: 18px;
}

.sg-brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.sg-brand__text strong {
    font-size: 20px;
    letter-spacing: 1px;
}

.sg-brand__text em {
    font-style: normal;
    font-size: 12px;
    color: var(--sg-mist);
    letter-spacing: 2px;
}

.sg-nav__list {
    display: flex;
    align-items: center;
    gap: 28px;
}

.sg-nav__link {
    position: relative;
    font-size: 15px;
    font-weight: 600;
    color: var(--sg-ink);
    padding: 6px 2px;
}

.sg-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 100%;
    bottom: 0;
    height: 2px;
    background: var(--sg-blue);
    transition: right 0.25s ease;
}

.sg-nav__link:hover::after,
.sg-nav__link--active::after {
    right: 0;
}

.sg-nav__link:hover,
.sg-nav__link--active {
    color: var(--sg-blue);
}

.sg-header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sg-nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--sg-line);
    border-radius: 10px;
    background: var(--sg-white);
    color: var(--sg-navy);
    font-size: 18px;
    cursor: pointer;
}

.sg-nav-toggle .sg-nav-toggle__xmark {
    display: none;
}

.sg-nav--open .sg-nav-toggle .sg-nav-toggle__bars {
    display: none;
}

.sg-nav--open .sg-nav-toggle .sg-nav-toggle__xmark {
    display: block;
}

/* ---------- 首页 Hero:票务闸机 ---------- */
.sg-hero {
    background:
        repeating-linear-gradient(
            135deg,
            rgba(46, 107, 255, 0.07) 0 14px,
            transparent 14px 28px
        ),
        var(--sg-navy);
    color: var(--sg-white);
    padding: 88px 0 96px;
}

.sg-hero__grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    align-items: center;
}

.command-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 22px;
}

.command-tags span {
    padding: 5px 14px;
    border: 1px solid rgba(220, 230, 245, 0.35);
    border-radius: 999px;
    font-size: 13px;
    letter-spacing: 1px;
    color: #DCE6F5;
    background: rgba(46, 107, 255, 0.16);
}

.sg-hero__title {
    font-size: 40px;
    line-height: 1.3;
    margin: 0 0 20px;
    font-weight: 800;
}

.sg-hero__subtitle {
    font-size: 16px;
    line-height: 1.9;
    color: var(--sg-line);
    margin: 0 0 32px;
    max-width: 560px;
}

.sg-hero__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 24px;
}

.sg-hero__status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--sg-line);
    margin: 0;
}

.sg-hero__status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--sg-green);
    animation: sg-pulse 1.6s ease-in-out infinite;
}

@keyframes sg-pulse {
    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(31, 191, 110, 0.55);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(31, 191, 110, 0);
    }
}

.sg-hero__visual {
    position: relative;
}

.sg-hero__visual img {
    width: 100%;
    border-radius: 18px;
    box-shadow: var(--sg-shadow-blue);
    border: 1px solid rgba(220, 230, 245, 0.25);
}

.sg-hero__badge {
    position: absolute;
    left: -18px;
    bottom: 26px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--sg-blue);
    color: var(--sg-white);
    font-size: 13px;
    border-radius: 999px;
    box-shadow: var(--sg-shadow-blue);
}

/* ---------- 入口通行证(票券卡+翻转) ---------- */
.sg-pass-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.sg-pass {
    perspective: 1200px;
}

.sg-pass__inner {
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.65s ease;
    min-height: 340px;
}

.sg-pass--flipped .sg-pass__inner {
    transform: rotateY(180deg);
}

.sg-pass__face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--sg-line);
    border-radius: 16px;
    background: var(--sg-white);
    box-shadow: var(--sg-shadow);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    overflow: hidden;
}

.sg-pass__face--back {
    transform: rotateY(180deg);
    background: var(--sg-navy);
    color: var(--sg-white);
    padding: 30px;
}

.sg-pass__band {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    background: var(--sg-navy);
    color: var(--sg-white);
}

.sg-pass__type {
    font-weight: 800;
    font-size: 17px;
    letter-spacing: 1px;
}

.sg-pass__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--sg-blue);
    font-size: 14px;
}

.sg-pass__perks {
    padding: 22px 22px 10px;
    display: grid;
    gap: 12px;
    flex: 1;
}

.sg-pass__perks li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--sg-ink);
    font-size: 14px;
}

.sg-pass__perks li i {
    color: var(--sg-blue);
    margin-top: 4px;
}

.sg-pass__foot {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 14px 22px;
    border-top: 2px dashed var(--sg-line);
    font-size: 12px;
    color: var(--sg-mist);
}

.sg-pass__foot::before,
.sg-pass__foot::after {
    content: "";
    position: absolute;
    top: -12px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--sg-white);
    border: 1px solid var(--sg-line);
    border-top-color: transparent;
}

.sg-pass__foot::before {
    left: -12px;
}

.sg-pass__foot::after {
    right: -12px;
}

.sg-pass__flip {
    border: none;
    background: none;
    color: var(--sg-blue);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    padding: 0;
}

.sg-pass__face--back h3 {
    margin: 0 0 14px;
    font-size: 18px;
}

.sg-pass__face--back p {
    margin: 0 0 12px;
    color: var(--sg-line);
    font-size: 14px;
}

.sg-pass__flip--back {
    margin-top: auto;
    align-self: flex-start;
    padding: 8px 16px;
    border: 1px solid rgba(220, 230, 245, 0.4);
    border-radius: 999px;
    color: var(--sg-white);
}

/* ---------- 体育路线(路线卡+高亮) ---------- */
.sg-routes__layout {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 40px;
    align-items: start;
}

.sg-routes__map img {
    width: 100%;
    border-radius: 16px;
    margin-bottom: 18px;
    box-shadow: var(--sg-shadow);
}

.sg-route-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sg-route-chip {
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid var(--sg-line);
    background: var(--sg-white);
    color: var(--sg-ink);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease,
        color 0.2s ease;
}

.sg-route-chip:hover,
.sg-route-chip--active {
    background: var(--sg-blue);
    border-color: var(--sg-blue);
    color: var(--sg-white);
}

.sg-routes__cards {
    display: grid;
    gap: 16px;
}

.sg-route-card {
    background: var(--sg-white);
    border: 1px solid var(--sg-line);
    border-left: 4px solid var(--sg-line);
    border-radius: 12px;
    padding: 20px 22px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease,
        transform 0.25s ease;
}

.sg-route-card--active {
    border-left-color: var(--sg-blue);
    border-color: rgba(46, 107, 255, 0.45);
    box-shadow: var(--sg-shadow);
    transform: translateX(6px);
}

.sg-route-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.sg-route-card__way {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 10px;
}

.sg-route-card__way span {
    font-size: 12px;
    color: var(--sg-blue);
    background: var(--sg-sky);
    border: 1px solid var(--sg-line);
    border-radius: 6px;
    padding: 3px 10px;
}

.sg-route-card__desc {
    margin: 0;
    font-size: 14px;
    color: var(--sg-ink);
}

/* ---------- 网页版入口面板 ---------- */
.sg-web__panel {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
    border: 1px solid var(--sg-line);
    border-left: 5px solid var(--sg-blue);
    border-radius: 16px;
    padding: 44px;
    background: var(--sg-white);
    box-shadow: var(--sg-shadow);
}

.sg-web__lead {
    color: var(--sg-ink);
    margin: 0 0 20px;
}

.sg-web__points {
    display: grid;
    gap: 10px;
    margin-bottom: 26px;
}

.sg-web__points li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--sg-ink);
    font-size: 14px;
}

.sg-web__points li i {
    color: var(--sg-green);
}

.sg-web__board img {
    width: 100%;
    border-radius: 14px;
    box-shadow: var(--sg-shadow);
}

.sg-status-board {
    display: grid;
    gap: 8px;
    margin: 16px 0 0;
}

.sg-status-board div {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 14px;
    background: var(--sg-sky);
    border-radius: 8px;
    font-size: 13px;
}

.sg-status-board dt {
    color: var(--sg-mist);
}

.sg-status-board dd {
    margin: 0;
    font-weight: 700;
    color: var(--sg-navy);
}

.sg-status-board .sg-status-board__ok {
    color: var(--sg-green);
}

/* ---------- APP 入口面板 ---------- */
.sg-app__panel {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 48px;
    align-items: center;
}

.sg-app__visual {
    position: relative;
}

.sg-app__visual img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--sg-shadow);
}

.sg-app__device {
    position: absolute;
    top: 18px;
    left: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: rgba(10, 29, 66, 0.82);
    color: var(--sg-white);
    border-radius: 999px;
    font-size: 12px;
}

.sg-app__lead {
    color: var(--sg-ink);
    margin: 0 0 20px;
}

.sg-app__steps {
    display: grid;
    gap: 12px;
    margin-bottom: 26px;
}

.sg-app__steps li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--sg-ink);
}

.sg-app__steps li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--sg-blue);
    color: var(--sg-white);
    font-size: 13px;
    font-weight: 700;
}

/* ---------- 快速导航磁贴 ---------- */
.sg-tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.sg-tile {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 22px;
    border: 1px solid var(--sg-line);
    border-radius: 14px;
    background: var(--sg-white);
    transition: transform 0.2s ease, border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.sg-tile:hover {
    transform: translateY(-4px);
    border-color: var(--sg-blue);
    box-shadow: var(--sg-shadow);
}

.sg-tile__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sg-sky);
    color: var(--sg-blue);
    font-size: 16px;
    margin-bottom: 6px;
}

.sg-tile strong {
    font-size: 16px;
}

.sg-tile em {
    font-style: normal;
    font-size: 12px;
    color: var(--sg-mist);
}

/* ---------- 紧凑服务条 ---------- */
.sg-strips__layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 44px;
    align-items: center;
}

.sg-strips__visual img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--sg-shadow);
}

.sg-strips__list {
    display: grid;
    gap: 12px;
}

.sg-strip {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 13px 18px;
    background: var(--sg-white);
    border: 1px solid var(--sg-line);
    border-radius: 10px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sg-strip:hover {
    border-color: var(--sg-blue);
    box-shadow: var(--sg-shadow);
}

.sg-strip__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: var(--sg-sky);
    color: var(--sg-blue);
    flex-shrink: 0;
}

.sg-strip__name {
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.sg-strip__desc {
    flex: 1;
    font-size: 13px;
    color: var(--sg-mist);
}

.sg-strip__tag {
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(31, 191, 110, 0.12);
    color: var(--sg-green);
    flex-shrink: 0;
}

.sg-strip__tag--amber {
    background: rgba(245, 166, 35, 0.14);
    color: var(--sg-amber);
}

/* ---------- FAQ 闸机服务台 ---------- */
.sg-faq__layout {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 48px;
    align-items: start;
}

.sg-faq__desk {
    position: sticky;
    top: 110px;
    padding: 30px;
    border: 1px solid var(--sg-line);
    border-radius: 16px;
    background: var(--sg-sky);
}

.sg-faq__desk p {
    color: var(--sg-ink);
    font-size: 14px;
    margin: 0 0 14px;
}

.sg-faq__desk .sg-faq__desk-note {
    color: var(--sg-mist);
    font-size: 13px;
}

.sg-faq__list {
    display: grid;
    gap: 12px;
}

.sg-faq__item {
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sg-faq__item--open {
    border-color: rgba(46, 107, 255, 0.5);
    box-shadow: var(--sg-shadow);
}

.sg-faq__question {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 18px 20px;
    border: none;
    background: none;
    font-size: 15px;
    font-weight: 700;
    color: var(--sg-navy);
    text-align: left;
    cursor: pointer;
}

.sg-faq__q-icon {
    color: var(--sg-blue);
    flex-shrink: 0;
}

.sg-faq__chevron {
    margin-left: auto;
    color: var(--sg-mist);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.sg-faq__item--open .sg-faq__chevron {
    transform: rotate(180deg);
    color: var(--sg-blue);
}

.sg-faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.sg-faq__item--open .sg-faq__answer {
    max-height: 240px;
}

.sg-faq__answer p {
    margin: 0;
    padding: 0 20px 18px 46px;
    font-size: 14px;
    color: var(--sg-ink);
}

/* ---------- 结尾大闸机 ---------- */
.sg-final {
    background:
        repeating-linear-gradient(
            135deg,
            rgba(46, 107, 255, 0.08) 0 14px,
            transparent 14px 28px
        ),
        var(--sg-navy);
    color: var(--sg-white);
    padding: 96px 0;
}

.sg-final__inner {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.sg-final__title {
    font-size: 32px;
    margin: 0 0 12px;
    font-weight: 800;
}

.sg-final__sub {
    color: var(--sg-line);
    margin: 0 0 34px;
    font-size: 15px;
}

.sg-gate-btn {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 18px 52px;
    border-radius: 14px;
    background: var(--sg-blue);
    color: var(--sg-white);
    font-size: 19px;
    font-weight: 800;
    letter-spacing: 2px;
    box-shadow: var(--sg-shadow-blue);
    transition: transform 0.2s ease, background 0.2s ease,
        box-shadow 0.2s ease;
}

.sg-gate-btn:hover {
    transform: translateY(-3px);
    background: #1F5AE8;
    box-shadow: 0 16px 40px rgba(46, 107, 255, 0.4);
}

/* ---------- 页脚 ---------- */
.sg-footer {
    background: var(--sg-navy);
    color: var(--sg-line);
    padding-top: 64px;
}

.sg-footer__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 36px;
    padding-bottom: 44px;
}

.sg-footer__brand > a {
    display: inline-block;
    font-size: 22px;
    font-weight: 800;
    color: var(--sg-white);
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.sg-footer__brand p {
    margin: 0 0 14px;
    font-size: 13px;
    line-height: 1.9;
}

.sg-footer__badge {
    display: inline-block;
    padding: 5px 14px;
    border: 1px solid rgba(220, 230, 245, 0.35);
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 1px;
    color: #9DB6E8;
}

.sg-footer__col h4 {
    margin: 0 0 16px;
    font-size: 15px;
    color: var(--sg-white);
}

.sg-footer__col ul {
    display: grid;
    gap: 10px;
}

.sg-footer__col a {
    font-size: 13px;
    color: #A8B9DA;
    transition: color 0.2s ease;
}

.sg-footer__col a:hover {
    color: #7FA3FF;
}

.sg-footer__bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 20px;
    padding-bottom: 20px;
    border-top: 1px solid rgba(220, 230, 245, 0.18);
}

.sg-footer__note {
    margin: 0;
    font-size: 12px;
    color: #8CA0C9;
    max-width: 760px;
}

.sg-footer__copy {
    margin: 0;
    font-size: 12px;
    color: #8CA0C9;
}

/* ---------- 内页:通用页头 ---------- */
.sg-page-hero {
    padding: 72px 0;
    background: var(--sg-sky);
    border-bottom: 1px solid var(--sg-line);
}

.sg-page-hero--navy {
    background: var(--sg-navy);
    color: var(--sg-white);
    border-bottom: none;
}

.sg-page-hero h2 {
    font-size: 32px;
    margin: 0 0 14px;
    font-weight: 800;
}

.sg-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--sg-mist);
    margin-bottom: 18px;
}

.sg-page-hero--navy .sg-breadcrumb {
    color: #9DB6E8;
}

.sg-breadcrumb a:hover {
    color: var(--sg-blue);
}

.sg-page-hero__grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 44px;
    align-items: center;
}

.sg-page-hero__lead {
    margin: 0;
    color: var(--sg-ink);
}

.sg-page-hero--navy .sg-page-hero__lead {
    color: var(--sg-line);
}

.sg-page-hero__visual img {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--sg-shadow);
}

.sg-page-hero--center {
    text-align: center;
    padding: 84px 0;
}

.sg-page-hero--center .sg-breadcrumb {
    justify-content: center;
}

.sg-page-hero--center .sg-page-hero__lead {
    max-width: 640px;
    margin: 0 auto;
}

.sg-hero-chips {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.sg-hero-chips span {
    padding: 6px 16px;
    border: 1px solid rgba(220, 230, 245, 0.4);
    border-radius: 999px;
    font-size: 13px;
    color: #C7D7F5;
}

/* ---------- 内页:平台与体育入口说明 ---------- */
.sg-about__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 36px;
}

.sg-stat {
    padding: 22px;
    border: 1px solid var(--sg-line);
    border-radius: 14px;
    background: var(--sg-white);
    text-align: center;
}

.sg-stat strong {
    display: block;
    font-size: 28px;
    color: var(--sg-blue);
    margin-bottom: 4px;
}

.sg-stat span {
    font-size: 13px;
    color: var(--sg-mist);
}

.sg-about__overview-text {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.sg-about__overview-text p {
    margin: 0;
    color: var(--sg-ink);
    font-size: 14px;
}

.sg-about__explain {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 44px;
    align-items: start;
}

.sg-channel-list {
    display: grid;
    gap: 12px;
}

.sg-channel-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
}

.sg-channel-item__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sg-sky);
    color: var(--sg-blue);
    flex-shrink: 0;
}

.sg-channel-item strong {
    display: block;
    font-size: 15px;
}

.sg-channel-item p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-mist);
}

.sg-about__explain-text p {
    margin: 0 0 16px;
    color: var(--sg-ink);
    font-size: 14px;
}

.sg-about__explain-text p:last-child {
    margin-bottom: 0;
}

.sg-about__sports-intro {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 36px;
    align-items: center;
    margin-bottom: 36px;
}

.sg-about__sports-intro .sg-copy-block {
    margin-bottom: 16px;
}

.sg-about__sports-intro img {
    width: 100%;
    border-radius: 14px;
    box-shadow: var(--sg-shadow);
}

.sg-sport-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.sg-sport-card {
    padding: 22px;
    border: 1px solid var(--sg-line);
    border-top: 4px solid var(--sg-blue);
    border-radius: 12px;
    background: var(--sg-white);
}

.sg-sport-card h3 {
    margin: 0 0 10px;
    font-size: 17px;
}

.sg-sport-card p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-ink);
}

.sg-principles {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.sg-principle {
    padding: 22px;
    border-radius: 12px;
    background: var(--sg-white);
    text-align: center;
}

.sg-principle__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--sg-blue);
    color: var(--sg-white);
    margin-bottom: 12px;
}

.sg-principle h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.sg-principle p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-ink);
}

/* ---------- 内页:入口与应用矩阵 ---------- */
.sg-matrix {
    border: 1px solid var(--sg-line);
    border-radius: 14px;
    overflow: hidden;
    background: var(--sg-white);
}

.sg-matrix__head,
.sg-matrix__row {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 0.8fr;
    gap: 12px;
    align-items: center;
}

.sg-matrix__head {
    background: var(--sg-navy);
    color: var(--sg-white);
    font-size: 13px;
    font-weight: 700;
    padding: 14px 20px;
}

.sg-matrix__row {
    padding: 16px 20px;
    border-top: 1px solid var(--sg-line);
    font-size: 13px;
    color: var(--sg-ink);
}

.sg-matrix__cell--name {
    font-weight: 700;
    color: var(--sg-navy);
}

.sg-matrix__label {
    display: none;
    color: var(--sg-mist);
    font-size: 12px;
}

.sg-matrix__tag {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    background: rgba(31, 191, 110, 0.12);
    color: var(--sg-green);
}

.sg-product__panel {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 40px;
    align-items: center;
}

.sg-product__panel--reverse .sg-product__visual {
    order: 2;
}

.sg-product__visual img {
    width: 100%;
    border-radius: 14px;
    box-shadow: var(--sg-shadow);
}

.sg-product__copy .sg-copy-block {
    margin-bottom: 18px;
}

.sg-product__points {
    display: grid;
    gap: 10px;
    margin-bottom: 24px;
}

.sg-product__points li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--sg-ink);
}

.sg-product__points li i {
    color: var(--sg-blue);
}

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

.sg-flow__step {
    padding: 22px;
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
}

.sg-flow__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--sg-blue);
    color: var(--sg-white);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 10px;
}

.sg-flow__step h3 {
    margin: 0 0 6px;
    font-size: 15px;
}

.sg-flow__step p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-ink);
}

/* ---------- 内页:平台与体育更新条 ---------- */
.sg-news-hero-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    font-size: 13px;
    color: var(--sg-mist);
}

.sg-news-hero-date {
    padding: 4px 12px;
    background: var(--sg-navy);
    color: var(--sg-white);
    border-radius: 6px;
}

.sg-timeline {
    position: relative;
    padding-left: 28px;
}

.sg-timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--sg-line);
}

.sg-update {
    position: relative;
    padding: 20px 22px;
    margin-bottom: 16px;
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
}

.sg-update::before {
    content: "";
    position: absolute;
    left: -26px;
    top: 28px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--sg-blue);
    box-shadow: 0 0 0 4px var(--sg-sky);
}

.sg-update__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.sg-update__date {
    font-size: 12px;
    color: var(--sg-mist);
}

.sg-update__tag {
    font-size: 12px;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(46, 107, 255, 0.1);
    color: var(--sg-blue);
}

.sg-update h3 {
    margin: 0 0 8px;
    font-size: 17px;
}

.sg-update p {
    margin: 0;
    font-size: 14px;
    color: var(--sg-ink);
}

.sg-news__feature {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 32px;
    align-items: center;
    padding: 28px;
    border: 1px solid var(--sg-line);
    border-radius: 16px;
    background: var(--sg-white);
}

.sg-news__feature img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--sg-shadow);
}

.sg-news__feature-copy p {
    margin: 0 0 12px;
    color: var(--sg-ink);
    font-size: 14px;
}

.sg-news__feature-copy p:last-child {
    margin-bottom: 0;
}

.sg-news__tips {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    padding: 18px 22px;
    border-radius: 12px;
    background: var(--sg-white);
    border: 1px dashed var(--sg-blue);
}

.sg-news__tips i {
    color: var(--sg-blue);
}

.sg-news__tips span {
    flex: 1;
    min-width: 220px;
    font-size: 14px;
    color: var(--sg-ink);
}

.sg-news__tips a {
    color: var(--sg-blue);
    font-weight: 700;
}

/* ---------- 内页:访问帮助服务台 ---------- */
.sg-help__desk {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 36px;
    align-items: center;
}

.sg-help__desk img {
    width: 100%;
    border-radius: 14px;
    box-shadow: var(--sg-shadow);
}

.sg-help__desk-list {
    display: grid;
    gap: 10px;
}

.sg-help__desk-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--sg-ink);
}

.sg-help__desk-list li i {
    color: var(--sg-green);
}

.sg-help__qa {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.sg-help__qa-item {
    padding: 20px;
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
}

.sg-help__qa-item h3 {
    margin: 0 0 8px;
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sg-help__qa-item h3 i {
    color: var(--sg-blue);
}

.sg-help__qa-item p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-ink);
}

.sg-help__channels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.sg-help__channel {
    padding: 22px;
    border: 1px solid var(--sg-line);
    border-radius: 12px;
    background: var(--sg-white);
    text-align: center;
}

.sg-help__channel-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--sg-sky);
    color: var(--sg-blue);
    margin-bottom: 12px;
}

.sg-help__channel h3 {
    margin: 0 0 8px;
    font-size: 16px;
}

.sg-help__channel p {
    margin: 0;
    font-size: 13px;
    color: var(--sg-ink);
}

/* ---------- 内页:CTA 横带 ---------- */
.sg-cta-band {
    background: var(--sg-navy);
    color: var(--sg-white);
    padding: 56px 0;
}

.sg-cta-band__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.sg-cta-band h2 {
    margin: 0 0 6px;
    font-size: 24px;
}

.sg-cta-band p {
    margin: 0;
    color: var(--sg-line);
    font-size: 14px;
}

/* ---------- 响应式:1440 / 768 / 375 ---------- */
@media (min-width: 1440px) {
    .sg-container {
        max-width: 1320px;
    }

    .sg-hero__title {
        font-size: 46px;
    }

    .sg-section {
        padding: 104px 0;
    }
}

@media (max-width: 1023px) {
    .sg-nav-toggle {
        display: inline-flex;
    }

    .sg-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--sg-white);
        border-bottom: 1px solid var(--sg-line);
        box-shadow: var(--sg-shadow);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .sg-nav--open .sg-nav {
        max-height: 480px;
    }

    .sg-nav__list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 24px 18px;
    }

    .sg-nav__link {
        display: block;
        padding: 12px 2px;
        border-bottom: 1px solid var(--sg-sky);
    }

    .sg-hero__grid,
    .sg-routes__layout,
    .sg-web__panel,
    .sg-app__panel,
    .sg-strips__layout,
    .sg-faq__layout,
    .sg-page-hero__grid,
    .sg-about__explain,
    .sg-about__sports-intro,
    .sg-news__feature,
    .sg-help__desk,
    .sg-product__panel {
        grid-template-columns: 1fr;
    }

    .sg-pass-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sg-tiles,
    .sg-sport-cards,
    .sg-help__channels {
        grid-template-columns: repeat(2, 1fr);
    }

    .sg-about__stats,
    .sg-principles,
    .sg-flow {
        grid-template-columns: repeat(2, 1fr);
    }

    .sg-footer__grid {
        grid-template-columns: 1fr 1fr;
    }

    .sg-product__panel--reverse .sg-product__visual {
        order: 0;
    }

    .sg-faq__desk {
        position: static;
    }
}

@media (max-width: 767px) {
    .sg-section {
        padding: 56px 0;
    }

    .sg-hero {
        padding: 56px 0 64px;
    }

    .sg-hero__title {
        font-size: 28px;
    }

    .sg-section-title {
        font-size: 24px;
    }

    .sg-pass-grid,
    .sg-tiles,
    .sg-sport-cards,
    .sg-help__channels,
    .sg-about__stats,
    .sg-principles,
    .sg-flow,
    .sg-about__overview-text {
        grid-template-columns: 1fr;
    }

    .sg-pass__inner {
        min-height: 320px;
    }

    .sg-footer__grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .sg-footer__bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .sg-hero__badge {
        left: 12px;
        bottom: 12px;
    }

    .sg-page-hero {
        padding: 44px 0;
    }

    .sg-page-hero h2 {
        font-size: 25px;
    }

    .sg-matrix__head {
        display: none;
    }

    .sg-matrix__row {
        grid-template-columns: 1fr 1fr;
        gap: 8px 12px;
    }

    .sg-matrix__label {
        display: block;
    }

    .sg-timeline {
        padding-left: 20px;
    }

    .sg-update::before {
        left: -18px;
    }

    .sg-strip {
        flex-wrap: wrap;
    }

    .sg-strip__desc {
        flex-basis: 100%;
        order: 3;
        padding-left: 50px;
    }
}

@media (max-width: 399px) {
    .sg-container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .sg-brand__text em {
        display: none;
    }

    .sg-header__cta {
        display: none;
    }

    .sg-hero__title {
        font-size: 25px;
    }

    .sg-btn--lg {
        padding: 13px 24px;
        font-size: 15px;
    }

    .sg-gate-btn {
        padding: 15px 34px;
        font-size: 17px;
    }

    .sg-route-card--active {
        transform: none;
    }
}