/* ==========================================================================
   佳核源达 · JIAHE YUANDA
   样式表：设计系统 / 组件 / 响应式
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
    --paper: #fffdf9;
    --cream: #f5f0e6;
    --cream-2: #ece4d5;

    --ink: #14201b;
    --ink-2: #45534c;
    --ink-3: #7b8882;

    --green: #0d2a21;
    --green-2: #123a2c;
    --green-3: #1c4c3b;

    --gold: #a97c33;
    --gold-2: #d8b878;

    --line: #e4ddce;
    --line-strong: rgba(20, 32, 27, 0.18);

    --header-h: 88px;
    --gutter: clamp(20px, 5vw, 56px);
    --max: 1280px;

    --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", Georgia, "Times New Roman", serif;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body.is-locked {
    overflow: hidden;
}

h1,
h2,
h3,
h4 {
    margin: 0;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.005em;
}

p {
    margin: 0;
}

ul,
ol,
dl,
dd,
figure {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

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

img {
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s var(--ease), border-color 0.3s var(--ease), background-color 0.3s var(--ease), opacity 0.3s var(--ease);
}

button {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
}

::selection {
    background: var(--green);
    color: var(--paper);
}

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: -60px;
    left: 16px;
    z-index: 200;
    padding: 10px 18px;
    background: var(--green);
    color: #fff;
    font-size: 13px;
    transition: top 0.3s var(--ease);
}

.skip-link:focus {
    top: 12px;
}

/* ---------- 3. 布局 ---------- */
.container {
    width: 100%;
    max-width: var(--max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

main {
    padding-top: var(--header-h);
}

.page-home main {
    padding-top: 0;
}

.section {
    padding: clamp(64px, 8.5vw, 118px) 0;
}

.section--cream {
    background: var(--cream);
}

.section--tight {
    padding-top: clamp(36px, 5vw, 60px);
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: clamp(24px, 5vw, 64px);
    margin-bottom: clamp(36px, 4.6vw, 62px);
}

.section-head-side {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    max-width: 42ch;
}

.section-note {
    max-width: 44ch;
    font-size: 14px;
    line-height: 1.85;
    color: var(--ink-3);
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--gold);
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 1px;
    background: currentColor;
    opacity: 0.65;
}

.eyebrow--gold {
    color: var(--gold-2);
}

.section-title {
    font-family: var(--serif);
    font-size: clamp(1.75rem, 3.2vw, 2.7rem);
    line-height: 1.22;
}

.section-title--sm {
    font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.lead {
    font-size: clamp(15px, 1.1vw, 16.5px);
    line-height: 1.9;
    color: var(--ink-2);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(28, 76, 59, 0.3);
    font-size: 13px;
    letter-spacing: 0.06em;
    color: var(--green-3);
}

.text-link:hover {
    gap: 12px;
    border-bottom-color: var(--green-3);
}

/* ---------- 4. 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 28px;
    border: 1px solid transparent;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.05em;
    line-height: 1.2;
    text-align: center;
    transition: all 0.35s var(--ease);
}

.btn .ico-arrow {
    transition: transform 0.35s var(--ease);
}

.btn:hover .ico-arrow {
    transform: translateX(4px);
}

.btn-primary {
    background: var(--green);
    color: #f7f2e8;
}

.btn-primary:hover {
    background: var(--green-3);
    color: #fff;
}

.btn-light {
    background: var(--paper);
    color: var(--green);
}

.btn-light:hover {
    background: var(--gold-2);
    color: var(--green);
}

.btn-ghost {
    border-color: rgba(255, 255, 255, 0.42);
    color: #fff;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.btn-outline {
    border-color: var(--line-strong);
    color: var(--ink);
}

.btn-outline:hover {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--paper);
}

.btn-sm {
    padding: 12px 20px;
    font-size: 12px;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 13.5px;
}

.btn-block {
    width: 100%;
}

/* ---------- 5. 页头 ---------- */
.site-header {
    --hdr-fg: var(--ink);
    --hdr-bd: rgba(20, 32, 27, 0.16);
    --hdr-bg: rgba(255, 253, 249, 0.92);

    position: fixed;
    inset: 0 0 auto 0;
    z-index: 90;
    height: var(--header-h);
    display: flex;
    align-items: center;
    color: var(--hdr-fg);
    background: var(--hdr-bg);
    border-bottom: 1px solid var(--line);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    backdrop-filter: saturate(160%) blur(14px);
    transition: background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease);
}

.page-home .site-header:not(.is-scrolled) {
    --hdr-fg: #fff;
    --hdr-bd: rgba(255, 255, 255, 0.24);
    --hdr-bg: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.12);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.brand-mark {
    color: var(--gold);
    flex-shrink: 0;
}

.page-home .site-header:not(.is-scrolled) .brand-mark {
    color: var(--gold-2);
}

.page-home .site-header:not(.is-scrolled) .header-cta {
    background: var(--gold-2);
    border-color: var(--gold-2);
    color: var(--green);
}

.page-home .site-header:not(.is-scrolled) .header-cta:hover {
    background: #f5f0e6;
    border-color: #f5f0e6;
}

.brand-text strong {
    display: block;
    font-family: var(--serif);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.02em;
    line-height: 1.15;
}

.brand-text em {
    display: block;
    margin-top: 2px;
    font-style: normal;
    font-size: 9px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.6;
}

.nav {
    display: flex;
    align-items: center;
    gap: clamp(20px, 2.4vw, 38px);
    margin-left: auto;
}

.nav-link {
    position: relative;
    padding: 6px 0;
    font-size: 13.5px;
    letter-spacing: 0.04em;
    opacity: 0.85;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.35s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
    opacity: 1;
}

.nav-link:hover::after,
.nav-link.is-active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: clamp(12px, 2vw, 34px);
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 14px;
    border: 1px solid var(--hdr-bd);
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 0.08em;
}

.lang-switch:hover {
    border-color: currentColor;
}

.burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 42px;
    height: 42px;
    padding-left: 10px;
}

.burger span {
    display: block;
    width: 22px;
    height: 1.4px;
    background: currentColor;
    transition: transform 0.35s var(--ease);
}

.burger:hover span:first-child {
    transform: translateX(4px);
}

/* ---------- 6. 移动端抽屉 ---------- */
.drawer {
    position: fixed;
    inset: 0;
    z-index: 120;
    display: flex;
    flex-direction: column;
    padding: 22px var(--gutter) 34px;
    background: var(--green);
    color: #f4efe4;
    transform: translateY(-100%);
    transition: transform 0.55s cubic-bezier(0.72, 0, 0.18, 1);
}

.drawer.is-open {
    transform: translateY(0);
}

.drawer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(244, 239, 228, 0.16);
}

.drawer-brand {
    font-family: var(--serif);
    font-size: 18px;
    letter-spacing: 0.04em;
    color: var(--gold-2);
}

.drawer-close {
    padding: 6px;
    color: inherit;
}

.drawer-nav {
    display: flex;
    flex-direction: column;
    margin-top: 12px;
}

.drawer-link {
    display: flex;
    align-items: baseline;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(244, 239, 228, 0.12);
    font-family: var(--serif);
    font-size: 1.6rem;
}

.drawer-link.is-active {
    color: var(--gold-2);
}

.drawer-index {
    font-family: var(--sans);
    font-size: 11px;
    letter-spacing: 0.18em;
    color: rgba(244, 239, 228, 0.45);
}

.drawer-foot {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.drawer-cta {
    display: grid;
    place-items: center;
    padding: 16px;
    background: var(--gold-2);
    color: var(--green);
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.drawer-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    color: rgba(244, 239, 228, 0.65);
}

.drawer-lang {
    align-self: flex-start;
    padding: 8px 16px;
    border: 1px solid rgba(244, 239, 228, 0.3);
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 0.1em;
}

/* ---------- 7. 首屏 ---------- */
.hero {
    position: relative;
    display: flex;
    align-items: flex-end;
    min-height: clamp(620px, 92vh, 900px);
    background: var(--green);
    color: #fff;
    overflow: hidden;
}

.hero-media {
    position: absolute;
    inset: 0;
}

.hero-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 62%;
    transform: scale(1.02);
    animation: heroDrift 24s var(--ease) infinite alternate;
}

@keyframes heroDrift {
    from {
        transform: scale(1.02) translate3d(0, 0, 0);
    }
    to {
        transform: scale(1.08) translate3d(0, -1.5%, 0);
    }
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(102deg, rgba(8, 26, 20, 0.95) 0%, rgba(8, 26, 20, 0.8) 40%, rgba(8, 26, 20, 0.3) 78%, rgba(8, 26, 20, 0.18) 100%),
        linear-gradient(to top, rgba(8, 26, 20, 0.92) 0%, rgba(8, 26, 20, 0.1) 45%, transparent 70%);
}

.hero-inner {
    position: relative;
    z-index: 2;
    padding-top: calc(var(--header-h) + clamp(80px, 13vh, 150px));
    padding-bottom: clamp(52px, 7vw, 100px);
}

.hero-eyebrow {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 11px;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--gold-2);
}

.hero-rule {
    width: 46px;
    height: 1px;
    background: currentColor;
    opacity: 0.75;
}

.hero-title {
    margin-top: 26px;
    font-family: var(--serif);
    font-size: clamp(2.45rem, 5.6vw, 4.5rem);
    line-height: 1.08;
    letter-spacing: -0.01em;
    max-width: 20ch;
}

.hero-line {
    display: block;
}

.hero-line--accent {
    color: var(--gold-2);
}

html[lang="en"] .hero-line--accent {
    font-style: italic;
}

.hero-desc {
    max-width: 52ch;
    margin-top: 28px;
    font-size: clamp(14.5px, 1.05vw, 16.5px);
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.78);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 38px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 34px;
    font-size: 12px;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.6);
}

.hero-badge svg {
    color: var(--gold-2);
}

/* ---------- 8. 数据带 ---------- */
.stats-band {
    background: var(--paper);
    border-bottom: 1px solid var(--line);
}

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

.stat {
    padding: 30px 0 30px clamp(0px, 2vw, 34px);
    border-left: 1px solid var(--line);
}

.stat:first-child {
    border-left: 0;
    padding-left: 0;
}

.stat-value {
    display: flex;
    align-items: baseline;
    gap: 2px;
    font-family: var(--serif);
    font-size: clamp(1.9rem, 3vw, 2.6rem);
    line-height: 1;
    color: var(--green);
}

.stat-suffix {
    font-size: 0.52em;
    color: var(--gold);
}

.stat-label {
    display: block;
    margin-top: 10px;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}

/* ---------- 9. 品类卡片 ---------- */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(12px, 1.6vw, 20px);
}

.cat-card {
    position: relative;
    display: block;
    aspect-ratio: 3 / 4.1;
    overflow: hidden;
    background: var(--green);
    color: #fff;
}

.cat-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.1s var(--ease);
}

.cat-card:hover img {
    transform: scale(1.06);
}

.cat-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(9, 26, 20, 0.95) 0%, rgba(9, 26, 20, 0.55) 42%, rgba(9, 26, 20, 0.04) 76%);
    transition: opacity 0.4s var(--ease);
}

.cat-body {
    position: absolute;
    inset: auto 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: clamp(18px, 2vw, 26px);
}

.cat-count {
    font-size: 10px;
    letter-spacing: 0.2em;
    color: var(--gold-2);
}

.cat-name {
    font-family: var(--serif);
    font-size: clamp(1.12rem, 1.6vw, 1.42rem);
    line-height: 1.25;
}

.cat-desc {
    font-size: 12.5px;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.66);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cat-arrow {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    margin-top: 8px;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 50%;
    transition: all 0.35s var(--ease);
}

.cat-card:hover .cat-arrow {
    background: #fff;
    border-color: #fff;
    color: var(--green);
    transform: translateX(4px);
}

/* ---------- 10. 产品卡片 ---------- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(18px, 2.4vw, 32px) clamp(16px, 2vw, 26px);
}

.product-grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

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

.p-card {
    display: block;
}

.p-card-media {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: var(--cream-2);
}

.p-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.95s var(--ease);
}

.p-card:hover .p-card-media img {
    transform: scale(1.045);
}

.p-card-cat {
    position: absolute;
    left: 0;
    bottom: 0;
    padding: 7px 13px;
    background: rgba(255, 253, 249, 0.94);
    color: var(--green);
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.p-card-body {
    padding-top: 18px;
}

.p-card h3 {
    font-family: var(--serif);
    font-size: 1.14rem;
    line-height: 1.35;
}

.p-card-tag {
    margin-top: 8px;
    font-size: 12.5px;
    line-height: 1.65;
    color: var(--ink-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.p-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--ink-3);
}

.p-card-arrow {
    color: var(--green-3);
    transition: transform 0.35s var(--ease);
}

.p-card:hover .p-card-arrow {
    transform: translateX(4px);
}

/* ---------- 11. 深色优势区 ---------- */
.why {
    position: relative;
    color: #f4efe4;
    background:
        radial-gradient(110% 80% at 100% 0%, #1b4b39 0%, #0d2a21 52%, #0a221b 100%);
}

.section-head--dark .section-title {
    color: #f6f1e6;
}

.section-head--dark .section-note {
    color: rgba(244, 239, 228, 0.6);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid rgba(244, 239, 228, 0.16);
}

.why-item {
    padding: clamp(28px, 3.2vw, 44px) clamp(20px, 2.6vw, 40px);
    border-bottom: 1px solid rgba(244, 239, 228, 0.16);
}

.why-item:nth-child(odd) {
    border-right: 1px solid rgba(244, 239, 228, 0.16);
    padding-left: 0;
}

.why-index {
    display: block;
    margin-bottom: 18px;
    font-family: var(--serif);
    font-size: 11.5px;
    letter-spacing: 0.2em;
    color: var(--gold-2);
}

.why-item h3 {
    margin-bottom: 10px;
    font-family: var(--serif);
    font-size: 1.32rem;
}

.why-item p {
    font-size: 13.5px;
    line-height: 1.9;
    color: rgba(244, 239, 228, 0.62);
}

/* ---------- 12. 流程 ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid var(--line-strong);
}

.step {
    position: relative;
    padding: 30px clamp(16px, 2vw, 30px) 0 0;
    border-right: 1px solid var(--line);
}

.step:last-child {
    border-right: 0;
    padding-right: 0;
}

.step::before {
    content: "";
    position: absolute;
    top: -4px;
    left: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gold);
}

.step-index {
    display: block;
    margin-bottom: 16px;
    font-family: var(--serif);
    font-size: 11.5px;
    letter-spacing: 0.2em;
    color: var(--gold);
}

.step h3 {
    margin-bottom: 10px;
    font-family: var(--serif);
    font-size: 1.18rem;
}

.step p {
    font-size: 13.5px;
    line-height: 1.85;
    color: var(--ink-3);
}

/* ---------- 13. 关于我们（首页） ---------- */
.about-teaser-grid {
    display: grid;
    grid-template-columns: 1fr 1.02fr;
    gap: clamp(32px, 6vw, 88px);
    align-items: center;
}

.about-teaser-media {
    position: relative;
}

.about-teaser-media img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
}

.about-teaser-badge {
    position: absolute;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px 24px;
    background: var(--green);
    color: #f4efe4;
}

.about-teaser-badge strong {
    font-family: var(--serif);
    font-size: 1.05rem;
    font-weight: 500;
}

.about-teaser-badge span {
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold-2);
}

.about-teaser-body .lead {
    margin: 18px 0 0;
}

.markets {
    margin: 30px 0 34px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
}

.markets-label {
    font-size: 10.5px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.markets-list {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 14px;
}

.markets-list li {
    padding: 6px 13px;
    border: 1px solid var(--line-strong);
    font-size: 12px;
    color: var(--ink-2);
}

.markets--wide {
    margin-bottom: 0;
}

/* ---------- 14. 行动号召 ---------- */
.cta-band {
    padding: clamp(56px, 7vw, 96px) 0;
    background: var(--paper);
    border-top: 1px solid var(--line);
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}

.cta-title {
    font-family: var(--serif);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    line-height: 1.25;
    max-width: 22ch;
}

.cta-desc {
    margin-top: 14px;
    max-width: 46ch;
    font-size: 14px;
    line-height: 1.85;
    color: var(--ink-3);
}

.cta-actions {
    display: flex;
    align-items: center;
    gap: 26px;
    flex-wrap: wrap;
}

.cta-phone {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.cta-phone strong {
    font-family: var(--serif);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--ink);
}

/* ---------- 15. 页脚 ---------- */
.site-footer {
    padding-top: clamp(52px, 6.5vw, 88px);
    background: #0a241c;
    color: rgba(246, 241, 230, 0.68);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.55fr 0.85fr 0.85fr 1.35fr;
    gap: clamp(28px, 4vw, 56px);
    padding-bottom: clamp(40px, 5vw, 62px);
}

.brand--footer .brand-text strong {
    color: #f6f1e6;
    font-size: 1.1rem;
}

.brand--footer .brand-text em {
    font-size: 10px;
    letter-spacing: 0.04em;
    text-transform: none;
    color: rgba(246, 241, 230, 0.45);
}

.footer-tagline {
    margin-top: 20px;
    max-width: 32ch;
    font-size: 13.5px;
    line-height: 1.85;
    color: rgba(246, 241, 230, 0.58);
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

.footer-social a {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid rgba(246, 241, 230, 0.2);
    border-radius: 50%;
}

.footer-social a:hover {
    background: var(--gold-2);
    border-color: var(--gold-2);
    color: var(--green);
}

.footer-title {
    margin-bottom: 22px;
    font-family: var(--sans);
    font-size: 10.5px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--gold-2);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
    font-size: 13px;
}

.footer-col a:hover {
    color: #fff;
}

.contact-list li {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.contact-label {
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(246, 241, 230, 0.4);
}

.contact-list span:not(.contact-label) {
    line-height: 1.7;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding: 22px 0 28px;
    border-top: 1px solid rgba(246, 241, 230, 0.12);
    font-size: 11.5px;
    color: rgba(246, 241, 230, 0.42);
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-legal a:hover {
    color: #fff;
}

.footer-police {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* ---------- 16. 内页头部 ---------- */
.page-hero {
    padding: clamp(34px, 4.6vw, 64px) 0 clamp(36px, 4.6vw, 62px);
    background: var(--cream);
    border-bottom: 1px solid var(--line);
}

.crumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: clamp(20px, 2.4vw, 30px);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--ink-3);
}

.crumbs a:hover {
    color: var(--green-3);
}

.crumbs span[aria-hidden] {
    opacity: 0.5;
}

.page-title {
    font-family: var(--serif);
    font-size: clamp(2.1rem, 4.4vw, 3.4rem);
    line-height: 1.14;
}

.page-desc {
    margin-top: 18px;
    max-width: 64ch;
    font-size: 14.5px;
    line-height: 1.9;
    color: var(--ink-2);
}

/* ---------- 17. 筛选条 ---------- */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--line-strong);
}

.filter-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    font-size: 12.5px;
    color: var(--ink-2);
}

.chip-count {
    font-size: 10px;
    color: var(--ink-3);
}

.chip:hover {
    border-color: var(--green-3);
    color: var(--green-3);
}

.chip.is-active {
    background: var(--green);
    border-color: var(--green);
    color: #f6f1e6;
}

.chip.is-active .chip-count {
    color: var(--gold-2);
}

.filter-search {
    display: flex;
    align-items: center;
    padding-left: 14px;
    border: 1px solid var(--line-strong);
    background: #fff;
    transition: border-color 0.3s var(--ease);
}

.filter-search:focus-within {
    border-color: var(--green-3);
}

.filter-search input {
    width: clamp(150px, 22vw, 240px);
    padding: 11px 0;
    border: 0;
    background: transparent;
    font-family: inherit;
    font-size: 13px;
    color: var(--ink);
    outline: none;
}

.filter-search input::placeholder {
    color: var(--ink-3);
}

.filter-search button {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    color: var(--ink-3);
}

.filter-search button:hover {
    color: var(--green);
}

.list-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0 30px;
    font-size: 12px;
    letter-spacing: 0.05em;
    color: var(--ink-3);
}

.list-reset {
    border-bottom: 1px solid currentColor;
}

.list-reset:hover {
    color: var(--ink);
}

.empty-state {
    padding: clamp(48px, 7vw, 80px) 24px;
    border: 1px dashed var(--line-strong);
    text-align: center;
    color: var(--ink-3);
}

.empty-state svg {
    margin: 0 auto;
    color: var(--ink-3);
}

.empty-title {
    margin: 18px 0 8px;
    font-family: var(--serif);
    font-size: 1.3rem;
    color: var(--ink);
}

.empty-note {
    margin-bottom: 26px;
    font-size: 13.5px;
}

.empty-state .btn {
    display: inline-flex;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: clamp(40px, 5vw, 60px);
    flex-wrap: wrap;
}

.page-link {
    display: grid;
    place-items: center;
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--line);
    font-size: 12.5px;
    color: var(--ink-2);
}

.page-link:hover {
    border-color: var(--green-3);
    color: var(--green-3);
}

.page-link.is-active {
    background: var(--green);
    border-color: var(--green);
    color: #f6f1e6;
}

/* ---------- 18. 产品详情 ---------- */
.product-hero {
    padding: clamp(28px, 4vw, 44px) 0 clamp(48px, 6vw, 76px);
}

.product-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
}

.product-media {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    overflow: hidden;
    background: var(--cream-2);
}

.product-media img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
}

.product-media-cat {
    position: absolute;
    left: 0;
    bottom: 0;
    padding: 9px 16px;
    background: rgba(255, 253, 249, 0.95);
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--green);
}

.product-info .eyebrow {
    margin-bottom: 14px;
}

.product-title {
    font-family: var(--serif);
    font-size: clamp(1.9rem, 3.6vw, 2.85rem);
    line-height: 1.16;
}

.product-tagline {
    margin-top: 16px;
    font-size: 14.5px;
    line-height: 1.7;
    color: var(--gold);
}

.highlight-list {
    display: grid;
    gap: 11px;
    margin: 28px 0 30px;
}

.highlight-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--ink-2);
}

.highlight-list svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--gold);
}

.fact-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-bottom: 30px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.fact {
    padding: 18px 16px 18px 0;
    border-right: 1px solid var(--line);
}

.fact:last-child {
    border-right: 0;
    padding-right: 0;
}

.fact dt {
    margin-bottom: 6px;
    font-size: 10px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.fact dd {
    font-size: 13px;
    line-height: 1.55;
    color: var(--ink);
}

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

.product-note {
    margin-top: 18px;
    font-size: 11.5px;
    color: var(--ink-3);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: clamp(32px, 6vw, 84px);
}

.detail-prose .lead {
    margin-top: 20px;
}

.spec-title {
    margin-bottom: 16px;
    font-family: var(--serif);
    font-size: 1.2rem;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.spec-table th {
    width: 36%;
    padding: 14px 18px 14px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-weight: 400;
    color: var(--ink-3);
    vertical-align: top;
}

.spec-table td {
    padding: 14px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    line-height: 1.7;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
}

.info-card {
    padding: clamp(22px, 2.4vw, 30px) clamp(18px, 2vw, 26px);
    background: var(--paper);
}

.info-label {
    display: block;
    margin-bottom: 12px;
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--gold);
}

.info-card p {
    font-size: 13px;
    line-height: 1.8;
    color: var(--ink-2);
}

/* ---------- 19. 关于我们页 ---------- */
.about-intro {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: clamp(32px, 6vw, 80px);
    align-items: start;
}

.about-intro-media img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
}

.about-intro-body .lead {
    font-family: var(--serif);
    font-size: clamp(1.15rem, 1.9vw, 1.55rem);
    line-height: 1.65;
    color: var(--ink);
}

.about-intro-body p {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.95;
    color: var(--ink-2);
}

.quote-mark {
    margin-top: 28px;
    color: var(--gold);
    opacity: 0.55;
}

.legal-table {
    border-top: 1px solid var(--line-strong);
}

.legal-row {
    display: grid;
    grid-template-columns: 230px 1fr;
    gap: 24px;
    padding: 17px 0;
    border-bottom: 1px solid var(--line);
}

.legal-row dt {
    font-size: 11.5px;
    letter-spacing: 0.06em;
    color: var(--ink-3);
}

.legal-row dd {
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--ink);
}

.mono {
    font-family: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    letter-spacing: 0.05em;
}

.scope-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
}

.scope-item {
    display: flex;
    align-items: baseline;
    gap: 14px;
    padding: 22px 20px;
    background: var(--paper);
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--ink-2);
}

.scope-index {
    font-family: var(--serif);
    font-size: 10.5px;
    letter-spacing: 0.14em;
    color: var(--gold);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    border: 1px solid var(--line);
    background: var(--line);
}

.service-card {
    padding: clamp(26px, 3vw, 40px);
    background: var(--paper);
}

.service-index {
    font-family: var(--serif);
    font-size: 10.5px;
    letter-spacing: 0.2em;
    color: var(--gold);
}

.service-card h3 {
    margin: 14px 0 12px;
    font-family: var(--serif);
    font-size: 1.22rem;
}

.service-card p {
    font-size: 13.5px;
    line-height: 1.85;
    color: var(--ink-3);
}

/* ---------- 20. 联系我们 ---------- */
.contact-layout {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    gap: clamp(24px, 3.4vw, 48px);
    align-items: start;
}

.contact-side {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-panel {
    padding: clamp(24px, 3vw, 36px);
    background: var(--green);
    color: #f5f0e6;
}

.contact-panel--map {
    background: var(--cream);
    border: 1px solid var(--line);
    color: var(--ink);
}

.contact-panel-title {
    margin-bottom: 24px;
    font-family: var(--serif);
    font-size: 1.12rem;
    color: var(--gold-2);
}

.contact-panel--map .contact-panel-title {
    color: var(--ink);
}

.contact-blocks {
    display: flex;
    flex-direction: column;
    gap: 19px;
}

.contact-block-label {
    display: block;
    margin-bottom: 5px;
    font-size: 9.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(245, 240, 230, 0.42);
}

.contact-blocks p {
    font-size: 13px;
    line-height: 1.75;
    color: rgba(245, 240, 230, 0.86);
}

.contact-blocks a:hover {
    color: var(--gold-2);
}

.contact-quick {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 28px;
}

.contact-panel .btn-primary {
    background: #f5f0e6;
    color: var(--green);
}

.contact-panel .btn-primary:hover {
    background: var(--gold-2);
}

.contact-panel .btn-outline {
    border-color: rgba(245, 240, 230, 0.3);
    color: #f5f0e6;
}

.contact-panel .btn-outline:hover {
    background: rgba(245, 240, 230, 0.12);
    border-color: rgba(245, 240, 230, 0.5);
    color: #fff;
}

.map-card {
    position: relative;
    display: grid;
    place-items: center;
    height: 148px;
    border: 1px solid var(--line);
    background:
        radial-gradient(circle at 32% 46%, rgba(28, 76, 59, 0.12), transparent 58%),
        repeating-linear-gradient(0deg, transparent 0 24px, rgba(20, 32, 27, 0.055) 24px 25px),
        repeating-linear-gradient(90deg, transparent 0 24px, rgba(20, 32, 27, 0.055) 24px 25px),
        var(--paper);
    overflow: hidden;
}

.map-pin {
    position: absolute;
    top: 40%;
    left: 33%;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 0 8px rgba(169, 124, 51, 0.14), 0 0 0 17px rgba(169, 124, 51, 0.07);
}

.map-label {
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.contact-map-desc {
    margin-bottom: 18px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--ink-3);
}

.contact-map-addr {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--line-strong);
    font-size: 12.5px;
    color: var(--ink-2);
}

.contact-form-wrap {
    padding: clamp(24px, 3.4vw, 46px);
    border: 1px solid var(--line);
    background: var(--paper);
}

.contact-form-head h2 {
    font-family: var(--serif);
    font-size: clamp(1.4rem, 2.2vw, 1.85rem);
}

.contact-form-head p {
    margin: 10px 0 28px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--ink-3);
}

.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 18px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}

.field label {
    font-size: 11.5px;
    letter-spacing: 0.05em;
    color: var(--ink-2);
}

.req {
    color: var(--gold);
}

.field input,
.field select,
.field textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--line-strong);
    border-radius: 0;
    background: #fff;
    font-family: inherit;
    font-size: 13.5px;
    color: var(--ink);
    transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.field select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 38px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237b8882' stroke-width='1.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
}

.field textarea {
    min-height: 132px;
    line-height: 1.75;
    resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: var(--green-3);
    box-shadow: 0 0 0 3px rgba(28, 76, 59, 0.08);
    outline: none;
}

.field input::placeholder,
.field textarea::placeholder {
    color: var(--ink-3);
}

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 4px 0 26px;
    font-size: 12px;
    line-height: 1.65;
    color: var(--ink-3);
    cursor: pointer;
}

.checkbox input {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 3px;
    accent-color: var(--green);
}

.form-foot {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.form-hint {
    font-size: 11px;
    color: var(--ink-3);
}

.hp-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
    padding: 13px 16px;
    border: 1px solid;
    font-size: 12.5px;
    line-height: 1.6;
}

.alert--success {
    background: #f1f6f2;
    border-color: #cfe2d6;
    color: #1c4c3b;
}

.alert--error {
    background: #fdf4f2;
    border-color: #f0d4cd;
    color: #8e3a2b;
}

/* ---------- 21. 404 ---------- */
.error-page {
    display: grid;
    place-items: center;
    min-height: 58vh;
    text-align: center;
}

.error-code {
    display: block;
    font-family: var(--serif);
    font-size: clamp(3.8rem, 10vw, 6.6rem);
    line-height: 1.12;
    letter-spacing: 0.02em;
    color: var(--cream-2);
}

.error-title {
    margin-top: 4px;
    font-family: var(--serif);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
}

.error-desc {
    max-width: 42ch;
    margin: 16px auto 0;
    font-size: 13.5px;
    line-height: 1.85;
    color: var(--ink-3);
}

.error-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

/* ---------- 22. 滚动出现 ---------- */
/* 仅在 JS 可用时启用滚动出现，避免脚本失效导致内容不可见 */
.js [data-reveal] {
    opacity: 0;
    transform: translateY(20px);
}

.js [data-reveal].is-in {
    opacity: 1;
    transform: none;
    transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

/* ---------- 23. 响应式 ---------- */
@media (max-width: 1180px) {
    .nav {
        display: none;
    }

    .burger {
        display: flex;
    }

    .product-grid,
    .product-grid--3,
    .product-grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .cat-card {
        aspect-ratio: 4 / 4.4;
    }

    .product-layout {
        grid-template-columns: 1fr;
    }

    .product-media {
        position: relative;
        top: auto;
    }

    .product-media img {
        aspect-ratio: 16 / 11;
    }

    .about-teaser-grid,
    .about-intro,
    .detail-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .about-intro-media img,
    .about-teaser-media img {
        aspect-ratio: 16 / 10;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        row-gap: 40px;
    }

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

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

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

    .stat {
        padding-inline: 24px;
    }

    .stat:nth-child(odd) {
        border-left: 0;
        padding-left: 0;
    }

    .stat:nth-child(1),
    .stat:nth-child(2) {
        border-bottom: 1px solid var(--line);
    }

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

    .step:nth-child(2) {
        border-right: 0;
        padding-right: 0;
    }

    .step:nth-child(3),
    .step:nth-child(4) {
        margin-top: 26px;
        border-top: 1px solid var(--line);
        padding-top: 24px;
    }

    .contact-side {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .contact-panel {
        flex: 1 1 300px;
    }
}

@media (max-width: 860px) {
    :root {
        --header-h: 72px;
    }

    body {
        font-size: 15px;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 18px;
    }

    .section-note {
        max-width: 56ch;
    }

    .hero {
        min-height: 78vh;
        min-height: clamp(520px, 78vh, 720px);
    }

    .hero-inner {
        padding-top: calc(var(--header-h) + 96px);
    }

    .why-grid {
        grid-template-columns: 1fr;
    }

    .why-item:nth-child(odd) {
        border-right: 0;
        padding-left: 0;
    }

    .why-item {
        padding-inline: 0;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }

    .legal-row {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 15px 0;
    }

    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }

    .contact-panel {
        flex: 1 1 100%;
    }

    .header-cta {
        display: none;
    }

    .filter-bar {
        align-items: stretch;
    }

    .filter-search {
        width: 100%;
    }

    .filter-search input {
        flex: 1;
        width: auto;
    }
}

@media (max-width: 620px) {
    .product-grid,
    .product-grid--3,
    .product-grid--4 {
        gap: 22px 14px;
    }

    .p-card h3 {
        font-size: 1rem;
    }

    .p-card-tag {
        display: none;
    }

    .p-card-meta {
        font-size: 10px;
    }

    .p-card-meta span:first-child {
        display: none;
    }

    .p-card-meta {
        justify-content: flex-end;
        border-top: 0;
        padding-top: 0;
        margin-top: 10px;
    }

    .brand-text strong {
        font-size: 16px;
    }

    .brand-text em {
        font-size: 8px;
        letter-spacing: 0.16em;
    }

    .brand-mark svg {
        width: 34px;
        height: 34px;
    }

    .lang-switch span {
        display: none;
    }

    .lang-switch {
        padding: 9px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stat {
        padding: 22px 0 22px 18px;
    }

    .stat:nth-child(odd) {
        padding-left: 0;
    }

    .stat:nth-child(3) {
        border-bottom: 0;
    }

    .stat-value {
        font-size: 1.6rem;
    }

    .field-grid {
        grid-template-columns: 1fr;
    }

    .fact-row {
        grid-template-columns: 1fr;
    }

    .fact {
        border-right: 0;
        border-bottom: 1px solid var(--line);
        padding: 14px 0;
    }

    .fact:last-child {
        border-bottom: 0;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .scope-grid {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .step {
        border-right: 0;
        padding: 22px 0 22px;
        border-bottom: 1px solid var(--line);
    }

    .step:nth-child(3),
    .step:nth-child(4) {
        margin-top: 0;
        border-top: 0;
        padding-top: 22px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .stats-band,
    .steps,
    .why-grid {
        border-top: 0;
    }

    .drawer-link {
        font-size: 1.35rem;
        padding: 15px 0;
    }

    .btn {
        padding: 14px 22px;
    }

    .hero-actions .btn {
        flex: 1 1 auto;
    }

    .cat-card {
        aspect-ratio: 4 / 4.8;
    }

    .cat-desc {
        display: none;
    }
}

@media (max-width: 359px) {
    .product-grid,
    .product-grid--3,
    .product-grid--4 {
        grid-template-columns: 1fr;
    }

    .cat-grid {
        grid-template-columns: 1fr;
    }

    .cat-card {
        aspect-ratio: 16 / 11;
    }
}

/* ---------- 24. 动效降级 / 打印 ---------- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }

    .js [data-reveal] {
        opacity: 1;
        transform: none;
    }
}

/* ---------- 17. 资讯 ---------- */
.container--narrow {
    max-width: 860px;
}

.filter-bar--simple {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: clamp(24px, 3vw, 38px);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(28px, 3.4vw, 46px) clamp(20px, 2.6vw, 34px);
}

.news-card {
    display: flex;
    flex-direction: column;
}

/* 头条：整行通栏，图左文右 */
.news-card--lead {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    gap: clamp(22px, 3vw, 42px);
    align-items: center;
}

.news-card--lead .news-card-media {
    aspect-ratio: 16 / 10;
}

.news-card--lead .news-card-body {
    padding-top: 0;
    gap: 14px;
    justify-content: center;
}

.news-card--lead .news-card-title {
    font-size: clamp(1.3rem, 2.3vw, 1.78rem);
    line-height: 1.36;
}

.news-card--lead .news-card-excerpt {
    -webkit-line-clamp: 4;
    font-size: 14px;
    line-height: 1.95;
}

.news-card-media {
    display: block;
    overflow: hidden;
    aspect-ratio: 3 / 2;
    background: var(--cream-2);
}

.news-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.85s var(--ease);
}

.news-card:hover .news-card-media img {
    transform: scale(1.045);
}

.news-card-body {
    display: flex;
    flex-direction: column;
    gap: 11px;
    flex: 1;
    padding-top: 18px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 11.5px;
    letter-spacing: 0.03em;
    color: var(--ink-3);
}

.news-cat {
    padding: 2px 9px;
    border: 1px solid rgba(169, 124, 51, 0.34);
    font-size: 10.5px;
    letter-spacing: 0.12em;
    color: var(--gold);
}

.news-card-title {
    font-family: var(--serif);
    font-size: clamp(1.04rem, 1.5vw, 1.26rem);
    font-weight: 500;
    line-height: 1.45;
}

.news-card-title a {
    color: var(--ink);
    transition: color 0.3s var(--ease);
}

.news-card-title a:hover {
    color: var(--green-3);
}

.news-card-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 13.5px;
    line-height: 1.85;
    color: var(--ink-2);
}

.news-card-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    padding-top: 4px;
    font-size: 11.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold);
}

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

.news-grid--compact .news-card-title {
    font-size: 1.02rem;
}

/* 详情页 */
.article-head {
    padding: clamp(32px, 4.6vw, 60px) 0 clamp(22px, 3vw, 34px);
}

.article-head .news-meta {
    margin-top: 26px;
}

.article-title {
    max-width: 26ch;
    margin: 14px 0 18px;
    font-family: var(--serif);
    font-size: clamp(1.65rem, 3.3vw, 2.5rem);
    font-weight: 500;
    line-height: 1.32;
}

.article-lead {
    max-width: 62ch;
    font-size: clamp(15px, 1.2vw, 16.5px);
    line-height: 1.9;
    color: var(--ink-2);
}

.article-cover {
    margin: 0 0 clamp(28px, 4vw, 46px);
    overflow: hidden;
    background: var(--cream-2);
}

.article-cover img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.article-body p {
    margin: 0 0 1.45em;
    font-size: 16.5px;
    line-height: 2.05;
    color: var(--ink-2);
}

.article-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: clamp(18px, 2.6vw, 30px);
    padding: clamp(26px, 3.6vw, 40px) 0 clamp(44px, 6vw, 74px);
    border-top: 1px solid var(--line);
}

.related-news {
    border-top: 1px solid var(--line);
    background: var(--paper);
}

@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

}

@media (max-width: 620px) {
    .news-grid,
    .news-grid--compact {
        grid-template-columns: 1fr;
    }

    .news-card--lead {
        grid-column: auto;
        display: flex;
        flex-direction: column;
    }

    .news-card--lead .news-card-media {
        aspect-ratio: 3 / 2;
    }

    .news-card--lead .news-card-body {
        padding-top: 18px;
        gap: 11px;
    }

    .news-card--lead .news-card-title {
        font-size: 1.16rem;
    }

    .article-body p {
        font-size: 15.5px;
        line-height: 1.95;
    }
}

@media print {
    .site-header,
    .site-footer,
    .cta-band,
    .drawer {
        display: none !important;
    }

    main {
        padding-top: 0;
    }
}