:root {
    --primary: #175d7a;
    --primary-deep: #0e3e55;
    --accent: #67b6c8;
    --accent-soft: #dff1f5;
    --ink: #20303d;
    --text: #4f6472;
    --muted: #7f93a1;
    --line: #d9e5ea;
    --white: #ffffff;
    --bg: #f6fafb;
    --bg-soft: #eef5f3;
    --shadow: 0 18px 44px rgba(17, 52, 68, 0.10);
    --radius-lg: 28px;
    --radius-md: 18px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--white);
    line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
section, header, article { scroll-margin-top: 104px; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.glass-nav-light {
    position: fixed;
    inset: 0 0 auto 0;
    height: 82px;
    z-index: 1000;
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(216,229,234,0.8);
    box-shadow: 0 8px 32px rgba(16,43,58,0.06);
}
.nav-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}
.brand img {
    width: 58px;
    height: 58px;
    object-fit: contain;
}
.brand span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-deep);
    letter-spacing: 0.02em;
}
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
}
.nav-links a {
    font-size: 0.96rem;
    color: var(--ink);
    font-weight: 600;
    transition: color .25s ease, opacity .25s ease;
}
.nav-links a:hover { color: var(--primary); }

.hero-section {
    position: relative;
    min-height: 88vh;
    margin-top: 82px;
    display: flex;
    align-items: center;
    background: linear-gradient(90deg, rgba(8, 37, 53, 0.54) 0%, rgba(13, 56, 77, 0.42) 34%, rgba(20, 92, 120, 0.20) 100%), url('assets/images/背景图1.jpg') center center / cover no-repeat;
    overflow: hidden;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(12, 67, 91, 0.30), transparent 38%),
        linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0));
    backdrop-filter: blur(1.6px);
}
.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 48px 0;
}
.hero-section .container.hero-content { display: flex; justify-content: center; }
.hero-copy {
    max-width: 860px;
    width: 100%;
    color: var(--white);
    text-align: center;
    margin: 0 auto;
}
.hero-kicker {
    display: inline-block;
    margin: 0 auto 18px;
    padding: 7px 14px;
    border-radius: 999px;
    font-size: 0.83rem;
    letter-spacing: 0.16em;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.22);
}
.hero-copy h1 {
    font-size: clamp(2.8rem, 5vw, 4.8rem);
    line-height: 1.12;
    letter-spacing: 0.02em;
    margin-bottom: 16px;
    font-weight: 700;
}
.hero-divider {
    width: 72px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, #8ddae9, #d8fbff);
    margin: 0 auto 22px;
}
.hero-desc {
    max-width: 720px;
    font-size: clamp(1.08rem, 1.8vw, 1.5rem);
    color: rgba(255,255,255,0.92);
    margin: 0 auto 34px;
}
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 164px;
    padding: 13px 24px;
    border-radius: 999px;
    font-weight: 700;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn-primary {
    background: var(--white);
    color: var(--primary-deep);
    box-shadow: 0 12px 24px rgba(10, 34, 46, 0.12);
}
.btn-secondary {
    background: rgba(255,255,255,0.12);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.34);
}
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-2px); }

section { padding: 90px 0; }
.section-title {
    text-align: center;
    max-width: 860px;
    margin: 0 auto 48px;
}
.left-title { text-align: left; margin-left: 0; }
.section-tag {
    display: inline-block;
    margin-bottom: 12px;
    font-size: 0.82rem;
    letter-spacing: 0.18em;
    color: var(--primary);
    font-weight: 700;
}
.section-title h2 {
    font-size: clamp(2rem, 3vw, 2.8rem);
    line-height: 1.2;
    margin-bottom: 12px;
    color: var(--ink);
}
.section-title p, .section-intro {
    color: var(--text);
    font-size: 1.02rem;
}
.title-line {
    width: 72px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 18px auto 0;
}
.left-title .title-line { margin-left: 0; }

.about-section { background: linear-gradient(180deg, #ffffff 0%, #f9fcfd 100%); }
.about-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.about-title { margin-left: auto; }
.about-card {
    background: linear-gradient(135deg, #ffffff 0%, #f7fbfc 100%);
    border: 1px solid #e4eef2;
    border-radius: var(--radius-lg);
    padding: 34px 36px;
    box-shadow: var(--shadow);
    max-width: 980px;
    width: 100%;
    margin: 0 auto;
}
.about-card p {
    font-size: 1.06rem;
    color: var(--text);
    text-align: left;
}
.about-card p + p { margin-top: 16px; }

.business-section { background: var(--bg); }
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    position: relative;
    min-height: 520px;
    border-radius: 28px;
    box-shadow: var(--shadow);
    perspective: 1200px;
}
.service-card-inner {
    position: relative;
    width: 100%;
    min-height: 520px;
    transform-style: preserve-3d;
    transition: transform .72s cubic-bezier(.2, .72, .18, 1);
}
.service-card:hover .service-card-inner,
.service-card:focus-within .service-card-inner {
    transform: rotateY(180deg);
}
.service-card-face {
    position: absolute;
    inset: 0;
    border-radius: 28px;
    overflow: hidden;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    isolation: isolate;
    display: flex;
}
.service-card-back {
    transform: rotateY(180deg);
}
.service-card-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    filter: blur(1.4px) saturate(.94);
}
.service-card-face::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(16, 48, 65, 0.28) 0%, rgba(16, 48, 65, 0.78) 68%, rgba(11, 31, 42, 0.92) 100%);
    z-index: 0;
}
.service-card-front .service-card-content {
    justify-content: flex-end;
}
.service-card-back::after {
    background: linear-gradient(180deg, rgba(12, 39, 53, 0.70) 0%, rgba(12, 39, 53, 0.91) 100%);
}
.service-card-back .service-card-bg {
    filter: blur(2px) saturate(.82) brightness(.7);
}
.service-card-data .service-card-bg { background-image: url('assets/images/数据咨询背景图.png'); }
.service-card-insight .service-card-bg { background-image: url('assets/images/洞察分析.jpg'); }
.service-card-talent .service-card-bg { background-image: url('assets/images/人才需求.jpg'); }
.service-card-content {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: 28px 26px 24px;
    display: flex;
    flex-direction: column;
    color: var(--white);
}
.service-no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(255,255,255,0.18);
    border: 1px solid rgba(255,255,255,0.28);
    font-weight: 700;
    margin-bottom: 20px;
}
.service-card h3 {
    font-size: 1.5rem;
    line-height: 1.35;
    margin-bottom: 16px;
}
.service-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}
.service-tags span {
    display: inline-flex;
    padding: 7px 12px;
    border-radius: 999px;
    font-size: 0.86rem;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.18);
}
.service-card ul {
    list-style: none;
    display: grid;
    gap: 10px;
    margin-bottom: 18px;
}
.service-card li {
    padding-left: 16px;
    position: relative;
    font-size: 0.96rem;
    color: rgba(255,255,255,0.93);
}
.service-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: .75em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #bdeef8;
}
.service-card p {
    color: rgba(255,255,255,0.86);
    font-size: 0.92rem;
    margin-top: auto;
    padding-top: 6px;
}
.service-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    margin-top: 18px;
    padding: 12px 18px;
    border-radius: 999px;
    background: rgba(255,255,255,0.96);
    color: var(--primary-deep);
    font-weight: 700;
    box-shadow: 0 10px 24px rgba(6, 26, 36, 0.16);
    transition: transform .25s ease, box-shadow .25s ease;
}
.service-link:hover { transform: translateY(-2px); }

.advantages-section {
    background: linear-gradient(180deg, #fdfefe 0%, #f2f7f6 100%);
}
.framework-board {
    background: linear-gradient(180deg, #f6faf8 0%, #eef5f2 100%);
    border: 1px solid #d8e6e2;
    border-radius: 30px;
    padding: 28px;
    box-shadow: var(--shadow);
}
.framework-topbar {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 18px;
    align-items: center;
    margin-bottom: 22px;
}
.topbar-label {
    padding: 14px 18px;
    border-radius: 16px;
    background: #dce7eb;
    color: var(--primary-deep);
    font-weight: 700;
    text-align: center;
}
.topbar-track {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.topbar-track span {
    padding: 14px 18px;
    border-radius: 16px;
    text-align: center;
    font-weight: 700;
    color: var(--primary-deep);
    background: linear-gradient(180deg, #e6f0ed 0%, #cfe1de 100%);
}
.framework-main {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 18px;
    align-items: stretch;
}
.framework-axis {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 22px;
    background: linear-gradient(180deg, #f4f7f7 0%, #e5ecec 100%);
    border: 1px solid #d4e0e1;
    padding: 22px 10px;
}
.axis-title {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 1.28rem;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--primary-deep);
}
.framework-rows {
    display: grid;
    gap: 16px;
}
.framework-row {
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 16px;
    border-radius: 22px;
    background: rgba(255,255,255,0.72);
    border: 1px solid #dce9e5;
    padding: 18px;
}
.emphasis-row {
    background: linear-gradient(180deg, rgba(84,138,159,0.14) 0%, rgba(255,255,255,0.86) 100%);
    box-shadow: 0 12px 28px rgba(23,93,122,0.12);
}
.row-label {
    border-radius: 18px;
    padding: 18px;
    background: linear-gradient(180deg, #ebf4f6 0%, #d6e7eb 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.row-label span {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: .18em;
    color: var(--primary);
    margin-bottom: 8px;
}
.row-label h3 {
    font-size: 1.44rem;
    line-height: 1.25;
    color: var(--primary-deep);
}
.row-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
}
.row-body p { color: var(--text); font-size: 1rem; }
.row-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.row-tags span {
    display: inline-flex;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid #d7e6e2;
    background: var(--white);
    color: var(--primary-deep);
    font-size: 0.9rem;
    font-weight: 600;
}
.framework-scenarios {
    margin-top: 22px;
    padding: 24px;
    border-radius: 24px;
    background: rgba(255,255,255,0.72);
    border: 1px solid #dce9e5;
}
.scenario-heading {
    text-align: center;
    color: var(--primary-deep);
    font-weight: 700;
    font-size: 1.12rem;
    margin-bottom: 18px;
}
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}
.scenario-box {
    min-height: 94px;
    border-radius: 18px;
    border: 2px solid #d4e6df;
    background: linear-gradient(180deg, #ffffff 0%, #f5faf8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.45;
    padding: 12px;
}
.framework-outcomes {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.outcome-pill {
    border-radius: 18px;
    padding: 18px 20px;
    background: linear-gradient(180deg, var(--primary) 0%, #1a6a85 100%);
    color: var(--white);
}
.outcome-pill strong {
    display: block;
    font-size: 1.02rem;
    margin-bottom: 4px;
}
.outcome-pill span {
    display: block;
    font-size: 0.93rem;
    color: rgba(255,255,255,0.86);
}

.platform-showcase {
    margin-top: 34px;
}
.platform-heading {
    max-width: 760px;
    margin-bottom: 24px;
}
.platform-heading h3 {
    font-size: clamp(1.65rem, 2.5vw, 2.28rem);
    line-height: 1.24;
    margin-bottom: 10px;
    color: var(--ink);
}
.platform-heading p {
    color: var(--text);
    font-size: 1rem;
}
.platform-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.platform-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    border-radius: 24px;
    background: linear-gradient(180deg, #ffffff 0%, #f6fafb 100%);
    border: 1px solid #dce9ed;
    box-shadow: 0 16px 36px rgba(16, 43, 58, 0.08);
}
.platform-image {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #e7eff2;
    border-bottom: 1px solid #dce9ed;
}
.platform-image::after {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 42%;
    background: linear-gradient(180deg, rgba(246,250,251,0) 0%, rgba(246,250,251,0.18) 100%);
    pointer-events: none;
}
.platform-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.platform-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    flex: 1;
}
.platform-content > span {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
}
.platform-content h4 {
    font-size: 1.22rem;
    line-height: 1.35;
    color: var(--primary-deep);
}
.platform-content p {
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.72;
}
.platform-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: auto;
    padding-top: 4px;
}
.platform-tags span {
    display: inline-flex;
    padding: 6px 10px;
    border-radius: 999px;
    background: #eef6f8;
    border: 1px solid #d7e8ed;
    color: var(--primary-deep);
    font-size: 0.82rem;
    font-weight: 600;
}

.cases-section { background: linear-gradient(180deg, #f7fafc 0%, #ffffff 100%); }
.case-block {
    background: var(--white);
    border: 1px solid #e2edf0;
    border-radius: 28px;
    padding: 28px;
    box-shadow: var(--shadow);
}
.case-block + .case-block { margin-top: 28px; }
.case-heading {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-end;
    margin-bottom: 20px;
}
.case-category {
    display: inline-block;
    margin-bottom: 6px;
    font-size: 0.82rem;
    letter-spacing: .16em;
    color: var(--primary);
    font-weight: 700;
}
.case-heading h3 {
    font-size: clamp(1.35rem, 2.2vw, 1.9rem);
    line-height: 1.35;
}
.case-back {
    padding: 10px 16px;
    border-radius: 999px;
    background: #eef6f8;
    color: var(--primary-deep);
    font-weight: 700;
    white-space: nowrap;
}
.case-stream-wrap {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    border: 1px solid #dfe9ed;
    background: linear-gradient(180deg, #f4f8fb 0%, #edf3f6 100%);
    padding: 18px 0;
}
.case-stream-wrap::before,
.case-stream-wrap::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 88px;
    z-index: 2;
    pointer-events: none;
}
.case-stream-wrap::before {
    left: 0;
    background: linear-gradient(90deg, #edf3f6 0%, rgba(237,243,246,0) 100%);
}
.case-stream-wrap::after {
    right: 0;
    background: linear-gradient(270deg, #edf3f6 0%, rgba(237,243,246,0) 100%);
}
.case-stream-track {
    display: flex;
    width: max-content;
    animation: marquee var(--duration, 30s) linear infinite;
}
.case-stream-track.reverse { animation-direction: reverse; }
.case-group {
    display: flex;
    gap: 18px;
    padding-right: 18px;
}
.flow-card {
    position: relative;
    flex: 0 0 clamp(280px, 30vw, 360px);
    height: 230px;
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.45);
    box-shadow: 0 14px 34px rgba(13, 46, 61, 0.12);
    background: #dbe8ed;
}
.flow-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 36px;
    background: linear-gradient(180deg, rgba(237,244,247,0.92) 0%, rgba(221,233,239,0.86) 100%);
    border-bottom: 1px solid rgba(208,222,228,0.85);
    z-index: 2;
}
.flow-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(16, 48, 65, 0.00) 26%, rgba(16, 48, 65, 0.08) 58%, rgba(10, 29, 39, 0.60) 100%);
    z-index: 1;
}
.flow-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: blur(1.4px) saturate(0.94) contrast(1.02) brightness(0.95);
    transform: scale(1.035);
}
.flow-card figcaption {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 3;
    color: var(--white);
    font-size: 0.94rem;
    font-weight: 700;
    line-height: 1.4;
    text-shadow: 0 2px 10px rgba(0,0,0,0.24);
}
.project-note {
    margin-top: 16px;
    padding: 16px 18px;
    border-radius: 16px;
    background: #f3f8fa;
    color: var(--text);
    border: 1px solid #dfecef;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.partners-section { background: var(--bg-soft); }
.partner-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}
.partner-card {
    background: var(--white);
    border-radius: 22px;
    border: 1px solid #dde9ee;
    min-height: 184px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    box-shadow: 0 12px 30px rgba(16, 43, 58, 0.06);
}
.partner-card img {
    width: 96px;
    height: 96px;
    object-fit: contain;
}
.partner-card span {
    text-align: center;
    color: var(--ink);
    font-weight: 700;
    line-height: 1.45;
}
.partner-more {
    background: linear-gradient(180deg, #f8fbfc 0%, #eef5f6 100%);
}
.more-mark {
    font-size: 2.4rem;
    line-height: 1;
    color: var(--primary);
    letter-spacing: .2em;
}

.footer {
    background: linear-gradient(180deg, #173646 0%, #122b37 100%);
    color: var(--white);
    padding: 72px 0 28px;
}
.footer-content { display: flex; flex-direction: column; align-items: center; text-align: center; }
.footer-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 18px;
}
.footer-info p {
    color: rgba(255,255,255,0.82);
    font-size: 1rem;
    margin-bottom: 8px;
}
.footer-copyright {
    margin-top: 34px;
    padding-top: 20px;
    width: 100%;
    border-top: 1px solid rgba(255,255,255,0.10);
    color: rgba(255,255,255,0.58);
    font-size: 0.92rem;
}
.footer-beian {
    margin-top: 8px;
}
.footer-beian a {
    color: rgba(255,255,255,0.70);
    transition: color .25s ease;
}
.footer-beian a:hover {
    color: var(--white);
}

@media (max-width: 1100px) {
    .service-grid, .scenario-grid, .framework-outcomes, .platform-grid, .partner-grid { grid-template-columns: repeat(2, 1fr); }
    .framework-topbar { grid-template-columns: 1fr; }
    .framework-main { grid-template-columns: 1fr; }
    .framework-axis {
        flex-direction: row;
        justify-content: flex-start;
        padding: 18px 20px;
    }
    .axis-title { writing-mode: initial; }
    .framework-row { grid-template-columns: 1fr; }
}

@media (max-width: 840px) {
    .container { width: min(100% - 32px, 1180px); }
    .glass-nav-light { height: auto; }
    .nav-inner {
        padding: 14px 0;
        align-items: flex-start;
        flex-direction: column;
    }
    .nav-links { gap: 14px 18px; }
    .hero-section { margin-top: 118px; min-height: 78vh; }
    .service-grid, .scenario-grid, .framework-outcomes, .platform-grid, .partner-grid { grid-template-columns: 1fr; }
    .case-heading { flex-direction: column; align-items: flex-start; }
    .flow-card { flex-basis: clamp(250px, 72vw, 320px); height: 212px; }
}

@media (max-width: 640px) {
    section { padding: 72px 0; }
    .hero-copy h1 { font-size: 2.4rem; }
    .about-card, .framework-board, .case-block { padding: 22px; }
    .brand span { font-size: 1.2rem; }
    .brand img { width: 50px; height: 50px; }
    .service-card, .service-card-inner { min-height: 500px; }
    .case-stream-wrap::before,
    .case-stream-wrap::after { width: 42px; }
}