:root {
    --navy: #0a1f3c;
    --navy-2: #0f2d55;
    --blue: #1565d8;
    --cyan: #19b5d8;
    --orange: #f59e0b;
    --text: #22303f;
    --muted: #6b7a8a;
    --bg-light: #f4f7fb;
    --white: #ffffff;
    --radius: 14px;
    --shadow: 0 8px 30px rgba(10, 31, 60, .10);
    --container: 1400px;
    --nav-h: 100px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--nav-h) + 12px);
    -webkit-text-size-adjust: 100%
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--white);
    line-height: 1.7;
    font-size: 16px;
}

    body.menu-open {
        overflow: hidden
    }

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

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

ul {
    list-style: none
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px
}

/* ---------- 顶部信息条 ---------- */
.topbar {
    background: var(--navy);
    color: #cfe0f5;
    font-size: 13px
}

    .topbar .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        min-height: 36px;
        gap: 10px;
        flex-wrap: wrap
    }

    .topbar a {
        color: #fff;
        margin-left: 14px
    }

@media(max-width:640px) {
    .topbar .hide-sm {
        display: none
    }
}

/* ---------- 导航 ---------- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 12px rgba(10, 31, 60, .08)
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-h);
    gap: 12px
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0
}

.logo-mark {
    position: relative;
    width: 86px;
    height: 46px;
    border-radius: 10px;
    flex: none;
    overflow: hidden;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.logo-ph {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, .95);
    user-select: none
}

.logo-mark img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    background: #fff
}

.logo-text {
    min-width: 0
}

    .logo-text strong {
        display: block;
        font-size: 18px;
        color: var(--navy);
        letter-spacing: .5px;
        white-space: nowrap
    }

    .logo-text span {
        font-size: 14px;
        color: var(--muted);
        letter-spacing: .5px;
        white-space: nowrap
    }

@media(max-width:460px) {
    .logo-text strong {
        font-size: 14.5px;
        letter-spacing: 0
    }

    .logo-text span {
        font-size: 9.5px;
        letter-spacing: 0
    }

    .logo-mark {
        width: 60px;
        height: 40px
    }
}

@media(max-width:340px) {
    .logo-text span {
        display: none
    }
}

.menu {
    display: flex;
    gap: 6px
}

    .menu > li {
        position: relative
    }

        .menu > li > a {
            display: block;
            padding: 10px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--navy);
            border-radius: 8px;
            transition: color .2s;
        }

            .menu > li > a:hover,
            .menu > li.active > a {
                color: var(--blue)
            }

                .menu > li.active > a::after {
                    content: "";
                    display: block;
                    height: 3px;
                    border-radius: 2px;
                    margin-top: 2px;
                    background: linear-gradient(90deg, var(--blue), var(--cyan));
                }

.dropdown {
    position: absolute;
    top: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #fff;
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 8px 0;
    min-width: 170px;
    opacity: 0;
    visibility: hidden;
    transition: all .25s;
    z-index: 99;
}

.menu > li:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0)
}

.dropdown a {
    display: block;
    padding: 9px 20px;
    font-size: 14px;
    color: var(--text)
}

    .dropdown a:hover {
        background: var(--bg-light);
        color: var(--blue)
    }

.nav-cta {
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #fff !important;
    padding: 10px 20px !important;
    border-radius: 24px;
    font-weight: 600
}

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px
}

    .burger span {
        display: block;
        width: 24px;
        height: 2.5px;
        background: var(--navy);
        margin: 5px 0;
        border-radius: 2px;
        transition: .3s
    }

@media(max-width:960px) {
    :root {
        --nav-h: 68px
    }

    .header {
        backdrop-filter: none;
        background: #fff
    }

    .menu {
        position: fixed;
        top: var(--nav-h);
        right: 0;
        width: 280px;
        max-width: 86vw;
        height: calc(100vh - var(--nav-h));
        height: calc(100dvh - var(--nav-h));
        background: #fff;
        flex-direction: column;
        padding: 12px 16px 24px;
        gap: 4px;
        box-shadow: -6px 0 24px rgba(0, 0, 0, .12);
        transform: translateX(100%);
        transition: transform .3s;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

        .menu.open {
            transform: translateX(0)
        }

        .menu > li > a {
            padding: 14px 12px;
            border-bottom: 1px solid #eef2f7
        }

    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        box-shadow: none;
        padding: 0 0 6px 16px;
        display: none;
        min-width: 0
    }

    .menu > li.sub-open .dropdown {
        display: block
    }

    .menu > li.has-sub > a::after {
        content: " ▾";
        font-size: 12px;
        color: var(--muted);
        display: inline-block;
        transition: transform .25s
    }

    .menu > li.sub-open > a::after {
        transform: rotate(180deg)
    }

    .burger {
        display: block
    }

    .nav-cta {
        display: none
    }
}

/* ---------- 通用 Section ---------- */
section.block {
    padding: 80px 0
}

    section.block.alt {
        background: var(--bg-light)
    }

.sec-head {
    text-align: center;
    max-width: 760px;
    margin: 0 auto 48px
}

    .sec-head .en {
        font-size: 13px;
        letter-spacing: 3px;
        color: var(--cyan);
        text-transform: uppercase;
        font-weight: 700
    }

    .sec-head h2 {
        font-size: clamp(24px, 3vw, 34px);
        color: var(--navy);
        margin: 8px 0 12px;
        font-weight: 800
    }

    .sec-head p {
        color: var(--muted);
        font-size: 15px
    }

/* ---------- 页面 Hero ---------- */
.page-hero {
    position: relative;
    color: #fff;
    overflow: hidden;
    background: radial-gradient(820px 400px at 88% 8%, rgba(25, 181, 216, .34), transparent 62%), radial-gradient(620px 340px at 4% 96%, rgba(21, 101, 216, .42), transparent 60%), linear-gradient(135deg, #081a33 0%, #0c2a50 55%, #0a3a5c 100%);
}

    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        pointer-events: none;
        background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
        background-size: 64px 64px;
        -webkit-mask-image: linear-gradient(100deg, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 82%);
        mask-image: linear-gradient(100deg, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 82%);
    }

    .page-hero .container {
        position: relative;
        z-index: 2;
        display: grid;
        grid-template-columns: 1.3fr .7fr;
        gap: 30px;
        align-items: center;
        padding-top: 52px;
        padding-bottom: 58px;
    }

.crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #9fb6cf;
    margin-bottom: 16px;
    flex-wrap: wrap
}

    .crumb a:hover {
        color: #4fc3f7
    }

    .crumb span {
        opacity: .45
    }

    .crumb em {
        font-style: normal;
        color: #cfe0f5
    }

.page-hero h1 {
    font-size: clamp(30px, 4vw, 46px);
    font-weight: 800;
    letter-spacing: 3px;
    line-height: 1.25
}

.page-hero .lead {
    margin-top: 14px;
    font-size: 15.5px;
    color: #c3d6ea;
    max-width: 620px
}

.hero-facts {
    display: flex;
    gap: 34px;
    margin-top: 28px;
    flex-wrap: wrap
}

    .hero-facts b {
        display: block;
        font-size: 25px;
        color: #4fc3f7;
        font-weight: 800;
        line-height: 1.25
    }

    .hero-facts span {
        font-size: 12.5px;
        color: #9fb6cf;
        letter-spacing: .5px
    }

.ph-art {
    position: relative;
    height: 230px;
    min-width: 210px
}

    .ph-art .ring-a,
    .ph-art .ring-b {
        position: absolute;
        top: 50%;
        left: 50%;
        border-radius: 50%;
        transform: translate(-50%, -50%);
    }

    .ph-art .ring-a {
        width: 196px;
        height: 196px;
        border: 1px solid rgba(79, 195, 247, .35)
    }

    .ph-art .ring-b {
        width: 152px;
        height: 152px;
        border: 1px dashed rgba(79, 195, 247, .45);
        animation: phspin 22s linear infinite
    }

    .ph-art .core {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 104px;
        height: 104px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: radial-gradient(circle at 35% 30%, rgba(79, 195, 247, .55), rgba(21, 101, 216, .18));
        box-shadow: 0 0 50px rgba(25, 181, 216, .45);
        font-size: 20px;
        font-weight: 800;
        letter-spacing: 2px;
        color: #fff;
    }

    .ph-art .dot {
        position: absolute;
        width: 9px;
        height: 9px;
        border-radius: 50%;
        background: #4fc3f7;
        box-shadow: 0 0 12px #4fc3f7;
        top: -5px;
        left: 50%
    }

    .ph-art .chip {
        position: absolute;
        background: rgba(255, 255, 255, .1);
        border: 1px solid rgba(255, 255, 255, .28);
        padding: 5px 12px;
        border-radius: 8px;
        font-size: 12px;
        color: #dbeafe;
        backdrop-filter: blur(4px);
        white-space: nowrap;
    }

    .ph-art .c1 {
        top: 6%;
        left: 2%
    }

    .ph-art .c2 {
        bottom: 8%;
        right: 0
    }

@keyframes phspin {
    to {
        transform: translate(-50%, -50%) rotate(360deg)
    }
}

/* ---------- 公司简介 ---------- */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 44px;
    align-items: center
}

.about-text h3 {
    font-size: 22px;
    color: var(--navy);
    margin-bottom: 14px
}

.about-text p {
    color: #4a5866;
    margin-bottom: 12px
}

    .about-text p b {
        color: var(--navy)
    }

.about-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 20px
}

    .about-points li {
        background: #fff;
        border-left: 4px solid var(--cyan);
        border-radius: 8px;
        padding: 12px 14px;
        font-size: 14px;
        font-weight: 600;
        color: var(--navy);
        box-shadow: 0 3px 12px rgba(10, 31, 60, .06)
    }

.about-media {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    min-height: 380px;
    background: radial-gradient(420px 220px at 80% 15%, rgba(25, 181, 216, .45), transparent 65%), linear-gradient(135deg, #0a3a6b, #1273c4);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .about-media img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 2
    }

.about-ph {
    text-align: center;
    color: rgba(255, 255, 255, .92);
    user-select: none;
    line-height: 1.6;
    padding: 20px
}

    .about-ph .ico {
        font-size: 42px;
        display: block;
        margin-bottom: 8px;
        opacity: .9
    }

    .about-ph b {
        font-size: 17px;
        letter-spacing: 2px;
        display: block
    }

    .about-ph small {
        font-size: 11px;
        opacity: .75;
        display: block;
        margin-top: 4px
    }

.about-badge {
    position: absolute;
    left: 16px;
    bottom: 16px;
    z-index: 3;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(6px);
    border-radius: 10px;
    padding: 10px 18px;
    box-shadow: 0 6px 18px rgba(10, 31, 60, .25);
}

    .about-badge b {
        display: block;
        font-size: 18px;
        font-weight: 800;
        color: var(--blue);
        line-height: 1.3
    }

    .about-badge span {
        font-size: 12px;
        color: var(--muted)
    }

@media(max-width:900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px
    }

    .about-media {
        min-height: 0;
        aspect-ratio: 16/10
    }
}

@media(max-width:520px) {
    .about-points {
        grid-template-columns: 1fr
    }
}

/* ---------- 数据条 ---------- */
.stats {
    background: var(--navy);
    color: #fff;
    padding: 34px 0
}

    .stats .container {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        text-align: center
    }

.stat b {
    font-size: clamp(26px, 3vw, 38px);
    font-weight: 800;
    color: #4fc3f7
}

.stat span {
    display: block;
    font-size: 14px;
    color: #a9bdd6;
    margin-top: 4px
}

@media(max-width:640px) {
    .stats .container {
        grid-template-columns: repeat(2, 1fr)
    }
}

/* ---------- 发展历程 ---------- */
.timeline {
    position: relative;
    max-width: 960px;
    margin: 0 auto
}

    .timeline::before {
        content: "";
        position: absolute;
        left: 74px;
        top: 14px;
        bottom: 14px;
        width: 2px;
        background: linear-gradient(180deg, var(--blue), var(--cyan) 55%, rgba(25, 181, 216, .12));
    }

.tl-item {
    position: relative;
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 34px;
    padding-bottom: 32px
}

    .tl-item:last-child {
        padding-bottom: 0
    }

    .tl-item::before {
        content: "";
        position: absolute;
        left: 68px;
        top: 20px;
        width: 14px;
        height: 14px;
        border-radius: 50%;
        background: #fff;
        border: 3px solid var(--cyan);
        box-shadow: 0 0 0 4px rgba(25, 181, 216, .14);
    }

.tl-year {
    text-align: right;
    padding-top: 13px;
    font-size: 17px;
    font-weight: 800;
    color: var(--blue);
    letter-spacing: .5px
}

.tl-card {
    background: #fff;
    border-radius: 12px;
    padding: 18px 24px;
    box-shadow: 0 4px 18px rgba(10, 31, 60, .07);
    border-left: 3px solid transparent;
    transition: transform .25s, box-shadow .25s, border-color .25s;
}

    .tl-card:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 26px rgba(10, 31, 60, .12);
        border-left-color: var(--cyan)
    }

    .tl-card h4 {
        font-size: 17px;
        color: var(--navy);
        margin-bottom: 4px
    }

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

@media(max-width:640px) {
    .timeline::before {
        left: 7px;
        top: 8px;
        bottom: 8px
    }

    .tl-item {
        grid-template-columns: 1fr;
        gap: 8px;
        padding-left: 32px;
        padding-bottom: 26px
    }

        .tl-item::before {
            left: 0;
            top: 9px;
            width: 12px;
            height: 12px;
            border-width: 3px
        }

    .tl-year {
        text-align: left;
        padding-top: 0;
        font-size: 15px
    }

    .tl-card {
        padding: 16px 18px
    }
}

/* ---------- 产业链 ---------- */
.chain {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    counter-reset: chain
}

.chain-item {
    position: relative;
    text-align: center;
    padding: 0 14px
}

    .chain-item .ico {
        width: 74px;
        height: 74px;
        margin: 0 auto 14px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--blue), var(--cyan));
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 30px;
        box-shadow: 0 8px 20px rgba(21, 101, 216, .3);
        position: relative;
        z-index: 2;
    }

    .chain-item::after {
        content: "";
        position: absolute;
        top: 37px;
        left: calc(50% + 50px);
        right: calc(-50% + 50px);
        height: 2px;
        background: repeating-linear-gradient(90deg, var(--cyan) 0 8px, transparent 8px 16px);
    }

    .chain-item:last-child::after {
        display: none
    }

    .chain-item h4 {
        color: var(--navy);
        font-size: 17px;
        margin-bottom: 6px
    }

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

@media(max-width:760px) {
    .chain {
        grid-template-columns: 1fr 1fr;
        gap: 30px 0
    }

    .chain-item:nth-child(2)::after {
        display: none
    }
}

@media(max-width:420px) {
    .chain {
        grid-template-columns: 1fr
    }

    .chain-item::after {
        display: none
    }
}

/* 产能规格 */
.cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-top: 52px
}

.cap {
    background: #fff;
    border-radius: 12px;
    padding: 22px 18px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(10, 31, 60, .06);
    border-top: 3px solid var(--cyan);
}

    .cap b {
        display: block;
        font-size: 23px;
        font-weight: 800;
        color: var(--navy);
        line-height: 1.3
    }

        .cap b i {
            font-style: normal;
            font-size: 14px;
            color: var(--muted);
            font-weight: 600;
            margin-left: 2px
        }

    .cap span {
        display: block;
        font-size: 13px;
        color: var(--muted);
        margin-top: 4px
    }

@media(max-width:900px) {
    .cap-grid {
        grid-template-columns: 1fr 1fr
    }
}

@media(max-width:420px) {
    .cap-grid {
        grid-template-columns: 1fr
    }
}

/* ---------- 品质管控 ---------- */
.qc-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 40px;
    align-items: stretch
}

.qc-steps {
    display: grid;
    gap: 16px
}

.qc-step {
    display: flex;
    gap: 18px;
    background: #fff;
    border-radius: 12px;
    padding: 20px 22px;
    box-shadow: 0 4px 16px rgba(10, 31, 60, .06);
}

    .qc-step .no {
        flex: none;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #eaf3fd, #dff0fb);
        color: var(--blue);
        font-weight: 800;
        font-size: 15px;
    }

    .qc-step h4 {
        font-size: 16.5px;
        color: var(--navy);
        margin-bottom: 4px
    }

    .qc-step p {
        font-size: 13.5px;
        color: var(--muted)
    }

.qc-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    padding: 36px 32px;
    color: #fff;
    background: radial-gradient(340px 220px at 100% 0%, rgba(25, 181, 216, .4), transparent 62%), linear-gradient(150deg, #0d2a52, #10406e 60%, #0c3358);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
}

    .qc-card .tagline {
        font-size: 12.5px;
        letter-spacing: 3px;
        color: #7fd8f0;
        font-weight: 700
    }

    .qc-card h3 {
        font-size: clamp(21px, 2.2vw, 27px);
        font-weight: 800;
        letter-spacing: 1px
    }

    .qc-card p {
        font-size: 14px;
        color: #c6d8ec
    }

    .qc-card ul {
        display: grid;
        gap: 10px;
        margin-top: 4px
    }

    .qc-card li {
        position: relative;
        padding-left: 24px;
        font-size: 14px;
        color: #e2ecf7
    }

        .qc-card li::before {
            content: "✓";
            position: absolute;
            left: 0;
            top: 0;
            color: #4fc3f7;
            font-weight: 800;
        }

.qc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px
}

    .qc-tags span {
        font-size: 12px;
        color: #bfe6f5;
        background: rgba(79, 195, 247, .14);
        border: 1px solid rgba(79, 195, 247, .35);
        border-radius: 20px;
        padding: 4px 12px
    }

@media(max-width:900px) {
    .qc-grid {
        grid-template-columns: 1fr;
        gap: 26px
    }
}

/* ---------- 企业文化 ---------- */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px
}

.ccard {
    position: relative;
    background: #fff;
    border-radius: var(--radius);
    padding: 34px 28px;
    box-shadow: 0 4px 18px rgba(10, 31, 60, .07);
    overflow: hidden;
    transition: .3s;
}

    .ccard::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 4px;
        background: linear-gradient(90deg, var(--blue), var(--cyan))
    }

    .ccard:hover {
        transform: translateY(-5px);
        box-shadow: 0 14px 32px rgba(10, 31, 60, .14)
    }

    .ccard .ico {
        width: 54px;
        height: 54px;
        border-radius: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 25px;
        margin-bottom: 16px;
        background: linear-gradient(135deg, rgba(21, 101, 216, .1), rgba(25, 181, 216, .16));
        color: var(--blue);
    }

    .ccard .en {
        font-size: 11.5px;
        letter-spacing: 2px;
        color: var(--cyan);
        font-weight: 700;
        text-transform: uppercase
    }

    .ccard h4 {
        font-size: 19px;
        color: var(--navy);
        margin: 4px 0 8px
    }

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

.culture-vals {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 36px
}

    .culture-vals span {
        font-size: 14px;
        font-weight: 600;
        color: var(--navy);
        background: #fff;
        border: 1px solid #dfe8f3;
        border-radius: 24px;
        padding: 8px 20px;
        box-shadow: 0 3px 10px rgba(10, 31, 60, .04);
    }

@media(max-width:900px) {
    .culture-grid {
        grid-template-columns: 1fr
    }
}

@media(max-width:520px) {
    .culture-vals span {
        font-size: 13px;
        padding: 7px 16px
    }
}

/* ---------- 荣誉资质 ---------- */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px
}

.cert {
    background: #fff;
    border-radius: 12px;
    padding: 14px;
    box-shadow: 0 4px 16px rgba(10, 31, 60, .06);
    transition: transform .25s, box-shadow .25s;
}

    .cert:hover {
        transform: translateY(-4px);
        box-shadow: 0 12px 28px rgba(10, 31, 60, .12)
    }

.cert-img {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 8px;
    overflow: hidden;
    background: #f7fafd;
    border: 1px dashed #c8d6e6;
    display: flex;
    align-items: center;
    justify-content: center;
}

    .cert-img .ph {
        text-align: center;
        color: #8ba3bf;
        user-select: none;
        line-height: 1.5;
        display: none;
    }

        .cert-img .ph .ico {
            font-size: 32px;
            display: block;
            margin-bottom: 4px;
            opacity: .85
        }

        .cert-img .ph b {
            display: block;
            font-size: 13px;
            color: #5f7691;
            letter-spacing: 1px
        }

        .cert-img .ph small {
            display: block;
            font-size: 10.5px;
            color: #a3b4c6;
            margin-top: 2px
        }

    .cert-img img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        z-index: 2;
        background: #fff
    }

.cert b.name {
    display: block;
    font-size: 14.5px;
    color: var(--navy);
    margin: 12px 4px 2px
}

.cert span.desc {
    display: block;
    font-size: 12px;
    color: var(--muted);
    margin: 0 4px 4px
}

@media(max-width:900px) {
    .honor-grid {
        grid-template-columns: 1fr 1fr
    }
}

@media(max-width:480px) {
    .honor-grid {
        grid-template-columns: 1fr
    }
}

/* ---------- 诚聘英才 ---------- */
.join-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 44px;
    align-items: center
}

.join-text h3 {
    font-size: 22px;
    color: var(--navy);
    margin-bottom: 12px
}

.join-text p {
    color: #4a5866;
    margin-bottom: 12px
}

.join-list {
    display: grid;
    gap: 12px;
    margin-top: 18px
}

    .join-list li {
        position: relative;
        padding-left: 26px;
        font-size: 14.5px;
        color: var(--text)
    }

        .join-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 9px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--blue), var(--cyan));
        }

.join-box {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 30px;
    box-shadow: 0 8px 28px rgba(10, 31, 60, .10);
    border-top: 4px solid var(--cyan);
}

    .join-box h4 {
        font-size: 17px;
        color: var(--navy);
        margin-bottom: 6px
    }

    .join-box > p {
        font-size: 13.5px;
        color: var(--muted);
        margin-bottom: 16px
    }

.join-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px
}

    .join-tags span {
        font-size: 13px;
        color: var(--blue);
        background: #eaf3fd;
        border-radius: 20px;
        padding: 5px 14px
    }

.join-mail {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-light);
    border-radius: 10px;
    padding: 13px 16px;
    font-size: 14px;
    color: var(--navy);
    font-weight: 600;
    margin-bottom: 12px;
    word-break: break-all;
}

    .join-mail a {
        color: var(--blue)
    }

.join-tel {
    font-size: 13.5px;
    color: var(--muted)
}

    .join-tel a {
        color: var(--navy);
        font-weight: 700
    }

@media(max-width:900px) {
    .join-grid {
        grid-template-columns: 1fr;
        gap: 28px
    }
}

/* ---------- 联系我们 CTA ---------- */
.cta-band {
    position: relative;
    overflow: hidden;
    color: #fff;
    background: radial-gradient(600px 300px at 88% 20%, rgba(25, 181, 216, .42), transparent 62%), linear-gradient(120deg, #0a2a6b, #1a4bd0 60%, #1565d8);
}

    .cta-band .inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
        padding-top: 52px;
        padding-bottom: 52px;
        flex-wrap: wrap;
    }

    .cta-band h2 {
        font-size: clamp(22px, 2.8vw, 32px);
        font-weight: 800;
        letter-spacing: 1px
    }

    .cta-band p {
        margin-top: 8px;
        font-size: 14.5px;
        color: #d7e3ff
    }

.cta-btns {
    display: flex;
    gap: 12px;
    flex-wrap: wrap
}

.btn {
    display: inline-block;
    padding: 13px 30px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15.5px;
    transition: .25s
}

.btn-white {
    background: #fff;
    color: #1533a0;
    box-shadow: 0 8px 20px rgba(4, 20, 60, .28)
}

    .btn-white:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 26px rgba(4, 20, 60, .36)
    }

.btn-ghost {
    border: 1.5px solid rgba(255, 255, 255, .55);
    color: #fff
}

    .btn-ghost:hover {
        background: rgba(255, 255, 255, .12)
    }

@media(max-width:700px) {
    .cta-band .inner {
        padding-top: 42px;
        padding-bottom: 42px;
        gap: 22px
    }

    .cta-btns {
        width: 100%
    }

        .cta-btns .btn {
            flex: 1 1 auto;
            text-align: center;
            padding: 12px 20px;
            font-size: 15px
        }
}

/* ---------- 页脚 ---------- */
.footer {
    background: #071527;
    color: #8ba3bf;
    font-size: 14px
}

    .footer .container {
        padding: 48px 20px 24px
    }

.foot-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px
}

    .foot-grid h5 {
        color: #fff;
        font-size: 15px;
        margin-bottom: 14px
    }

    .foot-grid li {
        margin-bottom: 9px
    }

    .foot-grid a:hover {
        color: #4fc3f7
    }

.foot-brand strong {
    color: #fff;
    font-size: 18px;
    display: block;
    margin-bottom: 8px
}

.foot-contact {
    margin-top: 14px;
    font-size: 13.5px
}

    .foot-contact li {
        margin-bottom: 8px;
        line-height: 1.6;
        word-break: break-word
    }

    .foot-contact a:hover {
        color: #4fc3f7
    }

.foot-map {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    font-size: 13px;
    color: #4fc3f7
}

    .foot-map:hover {
        text-decoration: underline
    }

.copyright {
    border-top: 1px solid rgba(255, 255, 255, .1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px
}

@media(max-width:820px) {
    .foot-grid {
        grid-template-columns: 1fr 1fr;
        gap: 26px
    }
}

@media(max-width:480px) {
    .foot-grid {
        grid-template-columns: 1fr
    }
}

/* ---------- 返回顶部 ---------- */
.backtop {
    position: fixed;
    right: 20px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 18px;
    box-shadow: 0 6px 18px rgba(21, 101, 216, .4);
    opacity: 0;
    visibility: hidden;
    transition: .3s;
    z-index: 99;
}

    .backtop.show {
        opacity: 1;
        visibility: visible
    }

/* ---------- 滚动淡入（无 JS 时自动可见） ---------- */
.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s ease, transform .6s ease
}

    .js .reveal.in {
        opacity: 1;
        transform: none
    }

@media(prefers-reduced-motion:reduce) {
    .js .reveal {
        opacity: 1;
        transform: none;
        transition: none
    }

    .ph-art .ring-b {
        animation: none
    }
}

/* ---------- 响应式补充 ---------- */
@media(max-width:900px) {
    section.block {
        padding: 64px 0
    }

    .sec-head {
        margin-bottom: 36px
    }

    .page-hero .container {
        grid-template-columns: 1fr;
        padding-top: 42px;
        padding-bottom: 48px
    }

    .ph-art {
        display: none
    }
}

@media(max-width:640px) {
    .page-hero h1 {
        letter-spacing: 2px
    }

    .hero-facts {
        gap: 24px;
        margin-top: 22px
    }

        .hero-facts b {
            font-size: 21px
        }

        .hero-facts span {
            font-size: 12px
        }
}

@media(max-width:480px) {
    .container {
        padding: 0 16px
    }

    section.block {
        padding: 52px 0
    }

    .sec-head {
        margin-bottom: 28px
    }

    .chain-item .ico {
        width: 60px;
        height: 60px;
        font-size: 25px;
        margin-bottom: 10px
    }

    .chain-item::after {
        top: 30px
    }

    .chain-item h4 {
        font-size: 16px
    }

    .about-badge {
        padding: 8px 14px
    }

        .about-badge b {
            font-size: 16px
        }

    .qc-step,
    .qc-card,
    .ccard,
    .join-box {
        padding-left: 20px;
        padding-right: 20px
    }

    .qc-card {
        padding: 28px 22px
    }
}

@media(max-width:360px) {
    .topbar {
        font-size: 12px
    }

    .menu {
        width: 100%;
        max-width: 100vw
    }
}

/* 中等宽度（961–1150）：压缩导航，避免长公司名把菜单挤到换行 */
@media(min-width:961px) and (max-width:1150px) {
    .logo-text strong {
        font-size: 16px
    }

    .logo-text span {
        font-size: 12px
    }

    .menu > li > a {
        padding: 10px 10px;
        font-size: 14.5px
    }

    .nav-cta {
        padding: 9px 14px !important;
        font-size: 14px
    }
}