:root {
    --ink: #13211c;
    --muted: #617169;
    --paper: #fbf6ea;
    --green: #155c43;
    --green-2: #0f3d31;
    --gold: #d79a2b;
    --clay: #c96f3f;
    --line: rgba(19, 33, 28, .12);
    --card: rgba(255, 255, 255, .82);
    --shadow: 0 24px 70px rgba(17, 49, 38, .14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--ink);
    font-family: "Microsoft YaHei", "Noto Serif SC", "Songti SC", serif;
    background:
        radial-gradient(circle at 12% 8%, rgba(215, 154, 43, .20), transparent 28rem),
        radial-gradient(circle at 90% 18%, rgba(21, 92, 67, .20), transparent 24rem),
        linear-gradient(135deg, #fffdf7 0%, var(--paper) 45%, #edf4ed 100%);
    line-height: 1.7;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 3px solid rgba(201, 111, 63, .45);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    left: 18px;
    top: 14px;
    z-index: 100;
    transform: translateY(-160%);
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--green);
    color: #fff;
    font-weight: 800;
    transition: transform .18s ease;
}

.skip-link:focus {
    transform: translateY(0);
}

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

.container {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(251, 246, 234, .88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
}

.nav-wrap {
    min-height: 78px;
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    flex: 0 0 auto;
}

.brand-mark {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    padding: 6px;
    border-radius: 18px;
    background: rgba(255, 255, 255, .92);
    box-shadow: 0 12px 30px rgba(21, 92, 67, .18);
    overflow: hidden;
}

.brand-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 12px;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 17px;
    line-height: 1.2;
    white-space: nowrap;
}

.brand small {
    color: var(--muted);
    font-size: 12px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
    justify-content: flex-end;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.main-nav::-webkit-scrollbar {
    display: none;
}

.main-nav a,
.admin-link {
    padding: 8px 10px;
    border-radius: 999px;
    color: #31443d;
    font-size: 14px;
    line-height: 1.2;
    white-space: nowrap;
}

.main-nav a:hover,
.main-nav a.active {
    background: #fff;
    color: var(--green);
    box-shadow: 0 8px 22px rgba(19, 33, 28, .08);
}

.admin-link {
    color: #fff;
    background: var(--green);
    flex: 0 0 auto;
    white-space: nowrap;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 86px 0 64px;
}

.hero::after {
    content: "";
    position: absolute;
    right: -80px;
    top: 42px;
    width: 420px;
    height: 420px;
    border-radius: 42% 58% 64% 36%;
    background: linear-gradient(145deg, rgba(21, 92, 67, .18), rgba(215, 154, 43, .18));
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 46px;
    align-items: center;
}

.eyebrow {
    color: var(--clay);
    font-weight: 700;
    letter-spacing: .16em;
    font-size: 13px;
}

.hero-project {
    margin: 14px 0 0;
    color: var(--green);
    font-size: 14px;
    font-weight: 700;
}

h1,
h2,
h3 {
    line-height: 1.18;
    margin: 0;
}

h1 {
    font-size: clamp(40px, 7vw, 76px);
    letter-spacing: -0.05em;
    margin: 12px 0 22px;
}

.lead {
    color: #43554e;
    font-size: 19px;
    max-width: 760px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
    font-weight: 700;
}

.btn.primary {
    background: var(--green);
    border-color: var(--green);
    color: #fff;
}

.hero-card,
.panel,
.card,
.admin-card {
    background: var(--card);
    border: 1px solid rgba(255, 255, 255, .8);
    border-radius: 28px;
    box-shadow: var(--shadow);
}

.hero-card {
    padding: 28px;
    transform: rotate(1.5deg);
}

.hero-card ul {
    padding-left: 20px;
    margin: 18px 0 0;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 34px 0 0;
}

.stat {
    padding: 20px;
    border-radius: 22px;
    background: rgba(255, 255, 255, .75);
    border: 1px solid var(--line);
}

.stat strong {
    display: block;
    color: var(--green);
    font-size: 28px;
}

.section {
    padding: 64px 0;
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 26px;
}

.section-head h2 {
    font-size: clamp(28px, 4vw, 44px);
}

.section-head p {
    max-width: 640px;
    color: var(--muted);
    margin: 8px 0 0;
}

.grid {
    display: grid;
    gap: 20px;
}

.grid.three {
    grid-template-columns: repeat(3, 1fr);
}

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

.card {
    padding: 24px;
    transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover {
    transform: translateY(-4px);
}

.card .tag,
.tag {
    display: inline-flex;
    color: var(--green);
    background: rgba(21, 92, 67, .10);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
}

.card h3 {
    margin: 14px 0 10px;
    font-size: 22px;
}

.card p {
    color: var(--muted);
    margin: 0;
}

.panel {
    padding: 34px;
}

.about-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 24px;
}

.about-list div {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(255, 255, 255, .55);
}

.article {
    max-width: 860px;
    margin: 56px auto;
}

.page-banner {
    padding: 34px;
}

.faq-list {
    display: grid;
    gap: 16px;
}

.faq-item {
    padding: 22px 24px;
    border-radius: 24px;
    background: rgba(255, 255, 255, .76);
    border: 1px solid var(--line);
    box-shadow: 0 18px 44px rgba(17, 49, 38, .08);
}

.faq-item h3 {
    margin: 12px 0 10px;
    font-size: 22px;
}

.article h1 {
    font-size: clamp(32px, 5vw, 54px);
}

.article-meta {
    color: var(--muted);
    margin: 14px 0 26px;
}

.article-body {
    font-size: 17px;
}

.form-grid {
    display: grid;
    gap: 14px;
}

.filter-panel {
    padding: 24px;
    margin-bottom: 22px;
}

.filter-form {
    display: grid;
    grid-template-columns: 1.8fr .8fr auto auto;
    gap: 12px;
    margin-bottom: 16px;
}

.timeline {
    display: grid;
    gap: 16px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 16px;
    align-items: start;
    padding: 22px;
    border-radius: 24px;
    background: rgba(255, 255, 255, .72);
    border: 1px solid var(--line);
}

.timeline-no {
    width: 56px;
    height: 56px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--green), var(--gold));
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .8);
    color: #30423b;
    font-size: 14px;
}

.chip.active {
    background: var(--green);
    color: #fff;
    border-color: var(--green);
}

.resource-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
    color: var(--muted);
    font-size: 13px;
}

.resource-meta span {
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(19, 33, 28, .06);
}

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

.stack-item {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.stack-item strong {
    font-size: 17px;
}

.stack-item span {
    color: var(--muted);
    white-space: nowrap;
    font-size: 14px;
}

.empty-state {
    text-align: center;
    margin-top: 20px;
}

input,
textarea,
select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 12px 14px;
    background: rgba(255, 255, 255, .9);
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 140px;
    resize: vertical;
}

.site-footer {
    margin-top: 48px;
    padding: 48px 0 20px;
    background: #102a23;
    color: rgba(255, 255, 255, .78);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 28px;
}

.site-footer strong,
.site-footer span {
    color: #fff;
    font-weight: 800;
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, .12);
    margin-top: 28px;
    padding-top: 18px;
    font-size: 13px;
}

.message {
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(21, 92, 67, .12);
    color: var(--green);
    margin-bottom: 16px;
}

.message.error {
    background: rgba(178, 58, 47, .12);
    color: #9d2f26;
}

.supplier-hero {
    padding-top: 76px;
}

.supplier-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 28px;
    align-items: stretch;
}

.supplier-project-card {
    padding: 34px;
    border-radius: 34px;
    color: #fff;
    background:
        radial-gradient(circle at 88% 10%, rgba(255, 255, 255, .28), transparent 12rem),
        linear-gradient(135deg, var(--green-2), var(--green));
    box-shadow: var(--shadow);
}

.supplier-project-card h2 {
    margin: 18px 0 20px;
    font-size: clamp(26px, 4vw, 42px);
}

.supplier-project-card p {
    color: rgba(255, 255, 255, .86);
    margin: 10px 0 0;
}

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

.supplier-stat {
    padding: 28px 24px;
    border-radius: 30px;
    background: rgba(255, 255, 255, .82);
    border: 1px solid var(--line);
    box-shadow: 0 16px 46px rgba(17, 49, 38, .10);
}

.supplier-stat strong {
    display: block;
    color: var(--green);
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.05;
}

.supplier-stat span {
    display: block;
    margin-top: 10px;
    color: var(--muted);
}

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

.profile-list div {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 18px;
    align-items: start;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}

.profile-list span {
    color: var(--muted);
    font-size: 14px;
}

.profile-list strong {
    font-size: 16px;
    line-height: 1.55;
}

.profile-list.compact div {
    grid-template-columns: 110px 1fr;
}

.supplier-ai-card {
    background:
        radial-gradient(circle at 92% 12%, rgba(215, 154, 43, .28), transparent 13rem),
        rgba(255, 255, 255, .82);
}

@media (max-width: 940px) {
    .nav-wrap {
        align-items: flex-start;
        flex-direction: column;
        padding: 14px 0;
    }

    .brand {
        min-width: 0;
    }

    .main-nav {
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .hero-grid,
    .supplier-hero-grid,
    .grid.three,
    .grid.two,
    .footer-grid,
    .about-list,
    .filter-form {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 560px) {
    .stats,
    .supplier-stats {
        grid-template-columns: 1fr;
    }

    .section-head {
        display: block;
    }

    .profile-list div {
        grid-template-columns: 1fr;
        gap: 4px;
    }
}