:root {
    --bg: #eff9ff;
    --bg-soft: #f9fdff;
    --panel: rgba(255, 255, 255, 0.84);
    --panel-strong: #ffffff;
    --ink: #1b425d;
    --muted: #6d879f;
    --brand: #69c7f7;
    --brand-deep: #2c9fe1;
    --accent: #d9f5ff;
    --line: rgba(78, 183, 232, 0.11);
    --shadow: 0 24px 60px rgba(58, 145, 194, 0.1);
    --radius: 24px;
    --brand-gradient: linear-gradient(135deg, var(--brand-deep), var(--brand));
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at left top, rgba(117, 205, 248, 0.18), transparent 30%),
        radial-gradient(circle at 82% 8%, rgba(211, 244, 255, 0.34), transparent 24%),
        linear-gradient(180deg, #fcfeff 0%, #f1f9ff 52%, #f7fcff 100%);
}

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

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

p {
    color: var(--muted);
    line-height: 1.75;
}

h1,
h2,
h3 {
    margin: 0 0 0.8rem;
    font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
    line-height: 1.15;
}

/* ========== Layout ========== */

.container {
    width: min(1180px, calc(100vw - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(18px);
    background: rgba(255, 255, 255, 0.86);
    border-bottom: 1px solid rgba(78, 183, 232, 0.08);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 76px;
}

.brand img {
    width: auto;
    max-width: min(220px, 48vw);
    max-height: 64px;
}

.brand-text {
    font-size: 1.4rem;
    font-weight: 700;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    font-size: 0.96rem;
}

.site-nav a {
    position: relative;
    padding-bottom: 4px;
    color: var(--muted);
    font-weight: 600;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand-deep), var(--brand));
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.2s ease;
}

.site-nav a:hover,
.text-link:hover {
    color: var(--brand);
}

.site-nav a:hover::after {
    transform: scaleX(1);
}

.site-nav a.is-disabled {
    opacity: 0.55;
    cursor: default;
}

.site-nav a.is-disabled::after,
.site-nav a.is-disabled:hover {
    display: none;
    color: var(--muted);
}

/* ========== Hero / Banner ========== */

.subhero {
    padding: 72px 0 48px;
}

.hero-banner-section {
    padding: 0 0 8px;
}

.hero-banner-only {
    width: 100%;
    height: 500px;
    margin: 0;
    line-height: 0;
    overflow: hidden;
}

.hero-banner-only img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(158, 223, 250, 0.22);
    color: var(--brand-deep);
    font-size: 0.86rem;
    letter-spacing: 0.08em;
}

.subhero h1 {
    margin-top: 18px;
    font-size: clamp(2.7rem, 6vw, 4.7rem);
}

.subhero p,
.article-hero p {
    max-width: 46ch;
    font-size: 1.05rem;
}

/* ========== Buttons ========== */

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 160px;
    padding: 14px 22px;
    border-radius: 999px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    color: #fff;
    background: var(--brand-gradient);
    box-shadow: var(--shadow);
}

/* ========== Cards - shared ========== */

.category-card,
.product-card,
.news-card,
.detail-card,
.gallery-card,
.datasheet-card,
.news-row,
.article-side,
.site-footer {
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

.panel-label,
.footer-label,
.news-date,
.badge {
    color: var(--brand);
    font-size: 0.88rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.text-link {
    color: var(--brand-deep);
    font-weight: 600;
}

.section {
    padding: 36px 0 72px;
}

.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 28px;
}

.section-heading h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

.alt-section {
    background: linear-gradient(180deg, rgba(239, 249, 255, 0.92), rgba(250, 254, 255, 0.54));
}

/* ========== About ========== */

.about-section {
    padding-top: 8px;
    scroll-margin-top: 90px;
}

.about-layout {
    display: grid;
    grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
}

.about-heading {
    display: grid;
    gap: 14px;
}

.about-heading h2 {
    margin-bottom: 0;
    font-size: clamp(2.6rem, 4vw, 4rem);
    white-space: nowrap;
}

.about-heading p {
    max-width: 18ch;
    margin: 0;
    font-size: 0.98rem;
}

.about-card {
    position: relative;
    padding: 30px 34px;
    border-radius: 30px;
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(248, 252, 255, 0.92)),
        linear-gradient(135deg, rgba(105, 199, 247, 0.07), rgba(217, 245, 255, 0.12));
    box-shadow: var(--shadow);
}

.about-card::before {
    content: "";
    position: absolute;
    left: 34px;
    top: 0;
    width: 84px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--brand-deep), var(--accent));
}

.about-card p {
    margin: 0;
    font-size: 1.12rem;
    line-height: 2;
    color: #4f5d69;
}

.about-points {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.about-points span {
    display: inline-flex;
    align-items: center;
    padding: 10px 16px;
    border-radius: 999px;
    background: rgba(105, 199, 247, 0.09);
    border: 1px solid rgba(105, 199, 247, 0.14);
    color: var(--brand-deep);
    font-size: 0.92rem;
    font-weight: 600;
}

/* ========== Honors ========== */

.honor-section .section-heading p {
    max-width: 50ch;
}

.honor-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
    gap: 22px;
    align-items: stretch;
}

.honor-visual,
.honor-card {
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.honor-visual {
    position: relative;
    overflow: hidden;
    min-height: 420px;
    border-radius: 34px;
    background:
        linear-gradient(135deg, rgba(91, 191, 236, 0.16), rgba(255, 255, 255, 0.08)),
        linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(241, 250, 255, 0.94));
}

.honor-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.honor-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(70, 160, 212, 0.38), rgba(122, 212, 245, 0.1) 42%, rgba(255, 255, 255, 0.03));
}

.honor-visual-badge {
    position: absolute;
    left: 28px;
    bottom: 28px;
    z-index: 1;
    display: grid;
    gap: 6px;
    max-width: 320px;
    padding: 18px 20px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(16px);
    color: #ffffff;
}

.honor-visual-badge strong {
    font-size: 1.3rem;
    line-height: 1.35;
}

.honor-visual-badge span {
    font-size: 0.88rem;
    letter-spacing: 0.08em;
    opacity: 0.92;
}

.honor-cards {
    display: grid;
    gap: 18px;
}

.honor-card {
    padding: 24px 26px;
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(243, 250, 255, 0.92));
}

.honor-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.55rem;
}

.honor-card p:last-child {
    margin: 0;
}

/* ========== Shop ========== */

.shop-hero {
    padding: 36px 0 14px;
}

.shop-hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.5fr);
    gap: 22px;
    align-items: stretch;
    padding: 30px 32px;
    border: 1px solid rgba(105, 199, 247, 0.1);
    border-radius: 34px;
    background:
        radial-gradient(circle at right top, rgba(213, 244, 255, 0.3), transparent 28%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(245, 251, 255, 0.94));
    box-shadow: 0 22px 50px rgba(58, 145, 194, 0.1);
}

.shop-hero-copy h1 {
    margin-top: 14px;
    font-size: clamp(2.2rem, 3.8vw, 3.2rem);
}

.shop-hero-copy p,
.shop-hero-note p {
    margin: 0;
}

.shop-hero-note {
    display: grid;
    gap: 10px;
    align-content: start;
    padding: 22px 24px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: inset 0 0 0 1px rgba(105, 199, 247, 0.1);
}

.shop-hero-note strong {
    color: var(--brand-deep);
    font-size: 1.1rem;
}

.shop-section {
    padding-top: 8px;
}

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

.shop-card {
    display: grid;
    gap: 18px;
    padding: 28px;
    border: 1px solid rgba(105, 199, 247, 0.1);
    border-radius: 32px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(244, 251, 255, 0.94));
    box-shadow: 0 24px 54px rgba(58, 145, 194, 0.1);
}

.shop-card-head {
    display: flex;
    align-items: start;
    gap: 18px;
}

.shop-card-head h2 {
    margin: 0.35rem 0 0;
    font-size: clamp(1.5rem, 2vw, 2rem);
    line-height: 1.35;
}

.shop-icon {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 68px;
    border-radius: 20px;
    color: #ffffff;
    font-size: 1.08rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    box-shadow: 0 18px 38px rgba(58, 145, 194, 0.16);
}

.shop-icon-jd {
    background: linear-gradient(135deg, #ff4d4f, #d61f29);
}

.shop-icon-douyin {
    background: linear-gradient(135deg, #181818, #0d7ae8 62%, #47c2ff);
}

.shop-card-copy {
    margin: 0;
    font-size: 1.02rem;
}

.shop-card-helper {
    margin: 0;
    color: var(--brand-deep);
    font-size: 0.94rem;
}

.shop-link {
    width: fit-content;
}

.shop-url-box {
    padding: 16px 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: inset 0 0 0 1px rgba(105, 199, 247, 0.1);
}

.shop-url-box span {
    color: var(--brand-deep);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.shop-url-box p {
    margin: 8px 0 0;
    word-break: break-all;
    font-size: 0.94rem;
}

/* ========== Product Center ========== */

.product-center-hero {
    padding: 28px 0 10px;
}

.product-center-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 28px;
    border: 1px solid rgba(105, 199, 247, 0.1);
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(245, 252, 255, 0.96));
    box-shadow: 0 20px 44px rgba(58, 145, 194, 0.1);
    backdrop-filter: blur(12px);
}

.product-center-copy {
    max-width: 60ch;
}

.product-center-copy h1 {
    margin-top: 14px;
    font-size: clamp(2rem, 3.5vw, 3rem);
}

.product-center-copy p {
    margin: 0;
    max-width: 52ch;
    font-size: 0.98rem;
}

.product-center-breadcrumb {
    display: inline-flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding: 12px 18px;
    border: 1px solid rgba(105, 199, 247, 0.1);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: 0 12px 30px rgba(58, 145, 194, 0.08);
    color: var(--muted);
    font-size: 0.92rem;
}

.product-center-breadcrumb span,
.product-center-breadcrumb strong {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.product-center-breadcrumb span::after {
    content: "/";
    color: rgba(24, 32, 40, 0.26);
}

.product-center-breadcrumb strong {
    color: var(--brand-deep);
}

.product-center-section {
    padding-top: 8px;
}

.product-tab-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 18px;
}

.product-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 170px;
    padding: 13px 24px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(105, 199, 247, 0.1);
    box-shadow: 0 14px 30px rgba(58, 145, 194, 0.08);
    color: var(--brand-deep);
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.product-tab:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 36px rgba(58, 145, 194, 0.12);
}

.product-tab.is-active {
    color: #ffffff;
    background: var(--brand-gradient);
    box-shadow: 0 24px 44px rgba(105, 199, 247, 0.24);
}

.product-center-summary {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 20px;
    margin-bottom: 24px;
    padding: 24px 28px;
    overflow: hidden;
    border: 1px solid rgba(105, 199, 247, 0.1);
    border-radius: 28px;
    background:
        radial-gradient(circle at right top, rgba(220, 246, 255, 0.82), transparent 36%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(246, 252, 255, 0.96) 100%);
    box-shadow: 0 22px 46px rgba(58, 145, 194, 0.1);
}

.product-center-summary::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(105, 199, 247, 0.15), rgba(105, 199, 247, 0));
    pointer-events: none;
}

.product-center-summary-copy {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 10px;
}

.product-center-summary-copy h2 {
    margin: 0;
    font-size: clamp(1.65rem, 2.2vw, 2rem);
    color: #16212b;
}

.product-center-summary-copy p {
    max-width: 56ch;
    margin: 0;
}

.product-center-summary-stat {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 6px;
    min-width: 140px;
    padding: 18px 22px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: inset 0 0 0 1px rgba(105, 199, 247, 0.1);
    text-align: right;
}

.product-center-summary-stat span {
    color: #71808d;
    font-size: 0.88rem;
}

.product-center-summary-stat strong {
    color: #42b9ef;
    font-size: clamp(2rem, 3vw, 2.6rem);
    font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1;
}

/* ========== Product Showcase ========== */

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

.product-showcase-card {
    position: relative;
    overflow: hidden;
    min-height: 420px;
    border-radius: 28px;
    border: 1px solid rgba(105, 199, 247, 0.11);
    background: linear-gradient(180deg, #ffffff 0%, #f4fbff 100%);
    box-shadow: 0 20px 44px rgba(58, 145, 194, 0.11);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.product-showcase-card::before {
    content: "";
    position: absolute;
    right: -12%;
    bottom: -28%;
    width: 72%;
    height: 72%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(215, 244, 255, 0.88), rgba(215, 244, 255, 0) 70%);
    pointer-events: none;
}

.product-showcase-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0));
    pointer-events: none;
}

.product-showcase-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 28px 60px rgba(58, 145, 194, 0.15);
}

.product-showcase-card a {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    padding: 32px 28px 28px;
}

.product-showcase-copy {
    display: grid;
    gap: 12px;
    max-width: 74%;
}

.product-showcase-copy > * {
    margin: 0;
}

.product-showcase-category {
    display: inline-flex;
    width: fit-content;
    color: #42b9ef;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.product-showcase-copy h3 {
    font-size: clamp(1.45rem, 2.1vw, 1.72rem);
    line-height: 1.36;
    color: #161f27;
}

.product-showcase-copy p {
    max-width: 22ch;
    min-height: 3.4em;
    color: #6f7d89;
    font-size: 0.98rem;
    line-height: 1.7;
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.product-showcase-bottom {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
}

.product-showcase-media {
    flex: 1 1 auto;
    display: flex;
    align-items: end;
    justify-content: flex-end;
    min-height: 230px;
    padding-top: 16px;
}

.product-showcase-media img {
    width: min(100%, 245px);
    max-height: 240px;
    object-fit: contain;
    filter: drop-shadow(0 22px 42px rgba(20, 70, 102, 0.14));
}

.product-showcase-arrow {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    margin-bottom: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 16px 32px rgba(17, 32, 47, 0.12);
    color: #42b9ef;
    font-size: 1.45rem;
    line-height: 1;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.product-showcase-card:hover .product-showcase-arrow {
    transform: translateY(-2px);
    color: #ffffff;
    background: var(--brand-gradient);
}

/* ========== Product Detail ========== */

.product-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 28px;
    align-items: center;
}

.subtitle {
    font-size: 1.15rem;
    color: var(--brand);
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.detail-meta span {
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(105, 199, 247, 0.12);
    color: var(--brand-deep);
}

.detail-cover img {
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.bullet-list {
    margin: 0;
    padding-left: 1.2rem;
}

.bullet-list li {
    margin-bottom: 10px;
    color: var(--muted);
    line-height: 1.7;
}

.gallery-card img,
.datasheet-card img {
    border-radius: 20px;
}

.gallery-card figcaption {
    padding-top: 14px;
    color: var(--muted);
}

.datasheet-card {
    padding: 18px;
    border-radius: 30px;
}

/* ========== Category / Card / News ========== */

.category-grid,
.card-grid,
.news-grid {
    display: grid;
    gap: 18px;
}

.category-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.news-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

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

.category-card,
.news-card,
.detail-card,
.gallery-card,
.news-row,
.article-side {
    padding: 24px;
    border-radius: var(--radius);
}

.category-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 252, 255, 0.9));
}

.color-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-bottom: 16px;
}

.product-card {
    overflow: hidden;
    border-radius: 28px;
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.product-card a {
    display: block;
    height: 100%;
}

.product-card:hover,
.news-card:hover,
.category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 70px rgba(58, 145, 194, 0.14);
}

.product-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: #edf7ff;
}

.card-body {
    padding: 22px;
}

.badge {
    display: inline-flex;
    margin-bottom: 12px;
}

/* ========== News ========== */

.news-list {
    display: grid;
    gap: 18px;
}

.news-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
    gap: 28px;
    align-items: start;
}

.article-body {
    padding: 6px 4px;
}

.article-body p {
    margin: 0 0 1.3rem;
    font-size: 1.05rem;
}

/* ========== Footer ========== */

.site-footer {
    margin: 36px auto 0;
    padding: 28px 0;
    border-radius: 32px 32px 0 0;
}

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

/* ========== Error Pages ========== */

.error-page {
    display: grid;
    place-items: center;
    min-height: 60vh;
    text-align: center;
    padding: 48px 24px;
}

.error-page h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    color: var(--brand-deep);
    margin-bottom: 0.5rem;
}

.error-page p {
    max-width: 40ch;
    margin: 0 auto 28px;
}

/* ========== Research ========== */

.research-promo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    justify-items: center;
}

.research-promo-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(245, 252, 255, 0.94));
    box-shadow: var(--shadow);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
    max-width: 480px;
    width: 100%;
}

.research-promo-link {
    display: block;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.research-promo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 70px rgba(58, 145, 194, 0.14);
}

.research-promo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 70px rgba(58, 145, 194, 0.14);
}

.research-promo-image {
    width: 100%;
    line-height: 0;
    overflow: hidden;
}

.research-promo-image img {
    width: 100%;
    display: block;
}

.research-promo-body {
    padding: 20px 24px 24px;
}

.research-promo-body h3 {
    margin-bottom: 0.4rem;
    font-size: 1.3rem;
}

.research-promo-body > p {
    margin: 0 0 16px;
    font-size: 0.96rem;
}

.research-promo-video {
    border-radius: 16px;
    overflow: hidden;
    background: #000;
    line-height: 0;
    max-height: 360px;
    display: flex;
    justify-content: center;
}

.research-promo-video video {
    height: 360px;
    display: block;
    width: auto;
    max-width: 100%;
}

.research-achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.research-achievement-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(246, 252, 255, 0.94));
    box-shadow: var(--shadow);
    transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.research-achievement-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 70px rgba(58, 145, 194, 0.14);
}

.research-achievement-link {
    display: block;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

/* ========== Research Detail ========== */

.research-detail-container {
    max-width: 960px;
}

.detail-content {
    max-width: 1060px;
}

.detail-image-box {
    line-height: 0;
    overflow: hidden;
    border-radius: 32px;
    box-shadow: var(--shadow);
}

.detail-image-box img {
    width: 100%;
    display: block;
    border-radius: 32px;
}

.detail-meta {
    margin-top: 28px;
    text-align: center;
}

.detail-meta h2 {
    font-size: clamp(1.6rem, 2.8vw, 2.2rem);
}

.detail-meta p {
    max-width: 64ch;
    margin: 10px auto 0;
    font-size: 1.05rem;
}

.detail-video-box {
    overflow: hidden;
    border-radius: 32px;
    box-shadow: var(--shadow);
    background: #000;
    line-height: 0;
    display: flex;
    justify-content: center;
}

.detail-video-box video {
    height: 540px;
    display: block;
    width: auto;
    max-width: 100%;
}

.detail-back-link {
    margin-top: 28px;
    text-align: center;
}

.research-detail-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 28px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(246, 252, 255, 0.94));
    box-shadow: var(--shadow);
}

.research-detail-image {
    width: 100%;
    line-height: 0;
    overflow: hidden;
}

.research-detail-image img {
    width: 100%;
    display: block;
}

.research-detail-body {
    padding: 32px 36px 36px;
}

.research-detail-body h2 {
    margin-bottom: 0.8rem;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.research-detail-body p {
    margin: 0 0 28px;
    font-size: 1.05rem;
    line-height: 1.8;
}

.research-detail-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.research-detail-links .button,
.research-detail-links .button-outline {
    min-width: 0;
    padding: 12px 24px;
    font-size: 0.95rem;
}

.research-detail-back {
    margin-top: 24px;
    text-align: center;
}

/* ========== Research Article (图文文章) ========== */

.research-article-container {
    max-width: 860px;
}

/* ── 研究成果 / 新闻画廊 ────────────────────────────── */

.research-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.research-gallery-item {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--line, #e5e5e5);
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.research-gallery-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.research-gallery-item a {
    display: block;
    line-height: 0;
}

.research-gallery-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.research-gallery-caption {
    padding: 8px 12px 10px;
    font-size: 0.85rem;
    color: #666;
    line-height: 1.4;
    margin: 0;
}

.research-article-header {
    text-align: center;
    margin-bottom: 36px;
}

.research-article-header h2 {
    font-size: clamp(1.4rem, 2.6vw, 2rem);
}

.research-article-body {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 28px;
    padding: clamp(24px, 4vw, 48px);
    box-shadow: var(--shadow);
}

.research-article-body p {
    margin: 0 0 16px;
    font-size: 1rem;
    line-height: 1.85;
    color: #333;
}

.research-article-img {
    display: block;
    max-width: 100%;
    width: auto;
    height: auto;
    border-radius: 16px;
    margin: 24px auto;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    border: 1px solid #eee;
}

.research-article-img-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 24px 0;
}

.research-article-conclusion {
    background: linear-gradient(135deg, #f0f8ff, #e8f4fd);
    border-left: 4px solid var(--primary, #2a7faa);
    border-radius: 16px;
    padding: 24px 28px;
    margin: 24px 0;
}

.research-article-conclusion ol {
    margin: 12px 0;
    padding-left: 20px;
}

.research-article-conclusion ol li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.research-article-pdf-gallery img:hover {
    opacity: 0.85;
    transform: scale(1.02);
    transition: all 0.2s ease;
}

.research-article-body ul {
    margin: 0 0 16px;
    padding-left: 20px;
}

.research-article-body ul li {
    margin-bottom: 6px;
    line-height: 1.7;
}

.research-achievement-image {
    overflow: hidden;
    line-height: 0;
}

.research-achievement-image img {
    width: 100%;
    display: block;
}

.research-achievement-body {
    padding: 22px 24px 24px;
}

.research-achievement-body h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.research-achievement-body p {
    margin: 0 0 18px;
    font-size: 0.98rem;
    line-height: 1.75;
}

.research-achievement-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.research-achievement-actions .button {
    min-width: 0;
    padding: 10px 20px;
    font-size: 0.92rem;
}

.button-outline {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 160px;
    padding: 13px 22px;
    border-radius: 999px;
    border: 1px solid var(--brand-deep);
    color: var(--brand-deep);
    background: rgba(255, 255, 255, 0.92);
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-outline:hover {
    transform: translateY(-2px);
    background: rgba(105, 199, 247, 0.08);
    box-shadow: var(--shadow);
}

.research-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 0;
    font-size: 1.05rem;
}

/* ========== Responsive ========== */

@media (max-width: 960px) {
    .about-layout,
    .honor-layout,
    .shop-hero-panel,
    .product-hero,
    .article-layout,
    .footer-grid,
    .detail-grid,
    .category-grid,
    .card-grid,
    .news-grid,
    .gallery-grid,
    .shop-grid {
        grid-template-columns: 1fr;
    }

    .research-promo-grid {
        grid-template-columns: 1fr;
    }

    .research-achievement-card {
        grid-template-columns: 1fr;
    }

    .section-heading,
    .news-row,
    .nav-wrap {
        align-items: start;
        flex-direction: column;
    }

    .site-nav {
        width: 100%;
    }

    .product-center-head {
        align-items: start;
        flex-direction: column;
        padding: 24px 26px;
    }

    .product-center-breadcrumb {
        justify-content: flex-start;
    }

    .product-center-summary {
        grid-template-columns: 1fr;
        align-items: start;
        padding: 26px;
    }

    .product-center-summary-stat {
        text-align: left;
    }

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

    .research-promo-grid {
        grid-template-columns: 1fr;
    }

    .product-showcase-copy {
        max-width: 100%;
    }

    .about-heading p {
        max-width: 100%;
    }

    .honor-visual {
        min-height: 360px;
    }

    .hero-banner-only {
        height: 360px;
    }
}

@media (max-width: 720px) {
    .subhero,
    .section {
        padding-top: 28px;
    }

    .hero-banner-section {
        padding-top: 0;
    }

    .hero-banner-only {
        height: 260px;
    }

    .site-header {
        position: static;
    }

    .brand img {
        max-width: 180px;
        max-height: 52px;
    }

    .site-footer {
        border-radius: 24px;
    }

    .subhero h1 {
        font-size: clamp(2.1rem, 10vw, 3rem);
    }

    .subhero p {
        font-size: 1rem;
    }

    .shop-hero-panel {
        padding: 24px 20px;
        border-radius: 26px;
    }

    .shop-card {
        padding: 24px 20px;
        border-radius: 26px;
    }

    .shop-card-head {
        gap: 14px;
    }

    .shop-icon {
        width: 60px;
        height: 60px;
        border-radius: 18px;
        font-size: 1rem;
    }

    .honor-visual {
        min-height: 300px;
        border-radius: 26px;
    }

    .honor-visual-badge {
        left: 18px;
        right: 18px;
        bottom: 18px;
        max-width: none;
        padding: 16px 18px;
        border-radius: 20px;
    }

    .honor-card {
        padding: 22px 20px;
        border-radius: 24px;
    }

    .product-center-head {
        padding: 22px 20px;
        border-radius: 24px;
    }

    .product-center-copy h1 {
        font-size: clamp(2rem, 10vw, 2.6rem);
    }

    .product-center-breadcrumb {
        padding: 10px 14px;
    }

    .product-tab-row {
        justify-content: flex-start;
        gap: 10px;
        margin-bottom: 20px;
    }

    .product-tab {
        min-width: 0;
        flex: 1 1 calc(50% - 5px);
        padding: 12px 16px;
    }

    .product-center-summary {
        gap: 18px;
        padding: 22px 20px;
        border-radius: 24px;
    }

    .product-center-summary-copy h2 {
        font-size: 1.6rem;
    }

    .product-showcase-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .product-showcase-card {
        min-height: 0;
    }

    .product-showcase-card a {
        padding: 24px 22px 24px;
    }

    .product-showcase-copy h3 {
        font-size: 1.6rem;
    }

    .product-showcase-bottom {
        gap: 12px;
    }

    .product-showcase-media {
        min-height: 200px;
    }

    .product-showcase-media img {
        width: min(100%, 210px);
        max-height: 210px;
    }

    .product-showcase-arrow {
        width: 52px;
        height: 52px;
        margin-bottom: 8px;
        font-size: 1.25rem;
    }

    .about-heading h2 {
        white-space: normal;
    }

    .about-card {
        padding: 24px 22px;
    }

    .about-card::before {
        left: 22px;
    }

    .about-card p {
        font-size: 1rem;
        line-height: 1.9;
    }
}