/* ==========================================================================
   site.premium.css v2 —— 高端视觉体系（参考 id-photo.cn 设计语言）
   在 site.css 之后加载；配色跟随后台 diy_* 主题色
   ========================================================================== */

:root {
    --ink: #0f172a;
    --ink-2: #334155;
    --muted: #64748b;
    --muted-2: #94a3b8;
    --line: #e2e8f0;
    --line-soft: #f1f5f9;
    --bg-soft: #f7f9fc;
    --radius-lg: 20px;
    --radius-md: 14px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, .04);
    --shadow-md: 0 10px 30px rgba(15, 23, 42, .08);
    --shadow-lg: 0 20px 48px rgba(15, 23, 42, .12);
    --grad: linear-gradient(135deg, var(--brand-a), var(--brand-b));
}

html {
    scroll-behavior: smooth;
}

html,
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    background: var(--bg-soft);
    color: var(--ink);
}

a {
    transition: color .2s ease;
}

::selection {
    background: rgba(var(--brand-c-rgb), .2);
}

.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    fill: currentColor;
    overflow: hidden;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   顶部导航（白色吸顶 + 毛玻璃）
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}

.site-header__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.site-header__brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--ink);
    transition: transform .2s ease;
}

.site-header__brand:hover {
    transform: scale(1.02);
}

.site-header__brand img {
    height: 56px;
    width: auto;
    max-width: 200px;
}

.site-header__nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.site-header__nav-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    color: var(--ink-2);
    text-decoration: none;
    transition: all .2s ease;
}

.site-header__nav-link:hover {
    color: var(--brand-c);
    background: #eff6ff;
}

.site-header__nav-link.is-active {
    color: var(--brand-c);
    background: #eff6ff;
}

.site-header__action {
    margin-left: 12px;
    padding-left: 16px;
    border-left: 1px solid var(--line);
}

.site-header__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 12px;
    background: var(--brand-c);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 10px 24px rgba(var(--brand-c-rgb), .2);
    transition: all .2s ease;
}

.site-header__cta .icon {
    width: 16px;
    height: 16px;
    margin-right: 6px;
}

.site-header__cta:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(var(--brand-c-rgb), .28);
}

.mobile-menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: #f8fafc;
    border-radius: 12px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    transition: background .25s ease;
}

.mobile-menu-toggle:hover {
    background: #eff6ff;
}

.mobile-menu-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--ink-2);
}

/* 移动端抽屉（复用原有 .list 结构与 JS） */
.list {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1300;
    width: min(86vw, 340px);
    height: 100vh;
    background: #fff;
    box-shadow: -16px 0 40px rgba(15, 23, 42, .12);
    padding: 24px 16px;
    overflow-y: auto;
    display: block;
    visibility: hidden;
    transform: translateX(100%);
    transition: transform .3s ease, visibility .3s ease;
    border-top: none;
}

.list[style*="display: block"] {
    visibility: visible;
    transform: translateX(0);
}

.list .item {
    height: auto;
    line-height: 1.4;
    margin-bottom: 10px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fff;
    overflow: hidden;
}

.list .item a {
    display: block;
    padding: 14px 16px;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--ink);
}

.list .item a.mobile-nav-cta {
    background: var(--brand-c);
    color: #fff;
    text-align: center;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(var(--brand-c-rgb), .2);
}

/* --------------------------------------------------------------------------
   Hero（浅色渐变 + 光晕 + 照片堆叠）
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #eef4ff 0%, #f7f9fc 100%);
    padding: 76px 0 104px;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -100px;
    width: 640px;
    height: 640px;
    border-radius: 50%;
    background: radial-gradient(circle, #e1ebff 0%, rgba(247, 249, 252, 0) 70%);
    pointer-events: none;
}

.hero-section::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: .35;
    background-image: radial-gradient(rgba(59, 130, 246, .16) .5px, transparent .5px),
        radial-gradient(rgba(59, 130, 246, .16) .5px, transparent .5px);
    background-size: 22px 22px;
    background-position: 0 0, 11px 11px;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    max-width: 520px;
}

.hero-title {
    font-size: 46px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -.02em;
    color: var(--ink);
    margin: 0 0 16px;
}

.hero-title span {
    color: var(--brand-c);
}

.hero-subtitle {
    font-size: 22px;
    font-weight: 500;
    color: var(--ink-2);
    margin: 0 0 28px;
}

.hero-features {
    list-style: none;
    margin: 0 0 36px;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
}

.hero-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    color: #475569;
}

.hero-check {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: rgba(var(--brand-c-rgb), .12);
    color: var(--brand-c);
    font-size: 11px;
    font-style: normal;
    font-weight: 800;
    flex-shrink: 0;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: auto;
    height: 52px;
    padding: 0 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    margin: 0;
    text-decoration: none;
    cursor: pointer;
    transition: all .25s ease;
    border: none;
}

.btn-primary {
    background: var(--brand-c);
    color: #fff;
    box-shadow: 0 8px 20px rgba(var(--brand-c-rgb), .32);
}

.btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(var(--brand-c-rgb), .4);
}

.btn .icon {
    width: 20px;
    height: 20px;
    margin-right: 6px;
}

.btn-secondary {
    background: #fff;
    color: var(--brand-c);
    border: 1px solid #d1e3ff;
}

.btn-secondary:hover {
    background: #f5f8ff;
    transform: translateY(-2px);
}

.hero-security {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted-2);
}

.hero-security .icon {
    width: 16px;
    height: 16px;
    color: var(--brand-c);
}

.hero-image-wrap {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    min-height: 420px;
}

.photo-stack {
    position: relative;
    width: 560px;
    height: 400px;
}

.photo-item {
    position: absolute;
    top: 50%;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    border: 4px solid #fff;
    box-shadow: 0 12px 32px rgba(0, 0, 0, .12);
    transform: translateY(-50%);
}

.photo-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-1 {
    left: 0;
    width: 250px;
    height: 336px;
    z-index: 4;
    box-shadow: 0 18px 44px rgba(0, 0, 0, .18);
}

.photo-2 {
    left: 232px;
    width: 156px;
    height: 210px;
    z-index: 3;
    transform: translateY(-50%) rotate(-2deg);
}

.photo-3 {
    left: 372px;
    width: 118px;
    height: 158px;
    z-index: 2;
    transform: translateY(-50%) rotate(2deg);
}

.photo-4 {
    left: 468px;
    width: 90px;
    height: 122px;
    z-index: 1;
    transform: translateY(-50%) rotate(5deg);
}

.floating-features {
    position: absolute;
    bottom: 6px;
    right: 26px;
    background: #fff;
    border-radius: 30px;
    padding: 10px 22px;
    display: flex;
    gap: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, .08);
    z-index: 5;
}

.float-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #475569;
}

.float-item::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand-c);
}

/* --------------------------------------------------------------------------
   特性卡片（与 Hero 下叠）
   -------------------------------------------------------------------------- */
.features-section {
    position: relative;
    z-index: 10;
    margin-top: -48px;
    margin-bottom: 36px;
}

.features-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 26px 24px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, .05);
}

.feature-card {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.card-icon .icon {
    width: 24px;
    height: 24px;
}

.bg-blue-light {
    background: #eff6ff;
    color: #3b82f6;
}

.bg-green-light {
    background: #f0fdf4;
    color: #10b981;
}

.bg-purple-light {
    background: #f5f3ff;
    color: #8b5cf6;
}

.bg-orange-light {
    background: #fff7ed;
    color: #f97316;
}

.hd-badge {
    font-size: 16px;
    font-weight: 800;
}

.card-text h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 4px;
}

.card-text p {
    font-size: 13px;
    color: var(--muted-2);
    line-height: 1.55;
    margin: 0;
}

/* --------------------------------------------------------------------------
   区块标题
   -------------------------------------------------------------------------- */
.section-header {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: 34px;
    text-align: center;
}

.section-header .header-title h2 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -.01em;
    color: var(--ink);
    margin: 0 0 8px;
}

.section-header .header-title p {
    font-size: 15px;
    color: var(--muted);
    margin: 0;
}

.section-header .more-link {
    position: absolute;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand-c);
    text-decoration: none;
}

.more-arrow {
    transition: transform .2s ease;
}

.more-link:hover .more-arrow {
    transform: translateX(4px);
}

/* --------------------------------------------------------------------------
   在线制作工具区
   -------------------------------------------------------------------------- */
.spec_photo {
    max-width: 1080px;
    margin: 0 auto 48px;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-lg);
    box-shadow: 0 6px 30px rgba(15, 23, 42, .06);
    padding: 34px 30px 44px;
    text-align: center;
}

.section-title {
    display: inline-block;
    font-size: 30px;
    font-weight: 800;
    color: var(--ink);
}

.section-title::after {
    content: "";
    display: block;
    width: 44px;
    height: 4px;
    margin: 12px auto 0;
    border-radius: 4px;
    background: var(--brand-c);
}

.section-sub {
    font-size: 15px;
    color: var(--muted);
    line-height: 40px;
}

.flex_item {
    background: var(--bg-soft);
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 18px 10px;
    font-size: 15px;
    font-weight: 600;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, color .25s ease;
}

.flex_item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(15, 23, 42, .06);
    border-color: rgba(var(--brand-c-rgb), .3);
    color: var(--brand-c);
}

.flex_item.active {
    background: linear-gradient(135deg, rgba(var(--brand-c-rgb), .08), rgba(var(--brand-c-rgb), .16));
    border-color: var(--brand-c);
    color: var(--brand-c);
    box-shadow: 0 8px 22px rgba(var(--brand-c-rgb), .16);
}

#more_item {
    background: var(--brand-c) !important;
    border: none;
    box-shadow: 0 10px 24px rgba(var(--brand-c-rgb), .28);
}

#more_item:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(var(--brand-c-rgb), .34);
}

#more_item .icon {
    width: 15px;
    height: 15px;
    vertical-align: -2px;
}

.content {
    background: transparent;
}

.cot_udp,
.cot_make {
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(15, 23, 42, .04);
}

.cot_pho_udp,
.cot_pho_make {
    border-radius: 12px;
    border-color: var(--line);
    transition: border-color .25s ease;
}

.cot_pho_udp:hover,
.cot_pho_make:hover {
    border-color: rgba(var(--brand-c-rgb), .55);
}

.select_text,
.cloethes_text {
    font-weight: 600;
    color: #4b5563;
}

.man_cl {
    border-radius: 12px;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.man_cl:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.man_cl.active {
    border-color: var(--brand-c) !important;
    box-shadow: 0 6px 16px rgba(var(--brand-c-rgb), .18);
}

.make_upd_btn {
    border-radius: 999px;
    transition: transform .25s ease, box-shadow .25s ease;
}

#make {
    background: var(--brand-c) !important;
    color: #fff !important;
    border: none !important;
    box-shadow: 0 12px 28px rgba(var(--brand-c-rgb), .32);
}

#make:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(var(--brand-c-rgb), .4);
}

#make i,
#make .make-btn {
    color: #fff !important;
}

#make .icon {
    width: 24px;
    height: 24px;
    color: #fff !important;
}

#make .make-btn {
    font-weight: 700;
    letter-spacing: 4px;
}

#saveText {
    background: #fff !important;
    border: 1px solid var(--brand-c) !important;
    color: var(--brand-c) !important;
    box-shadow: var(--shadow-sm);
}

.main_btn_com {
    border-radius: 999px !important;
    font-weight: 600;
    transition: transform .2s ease, box-shadow .2s ease;
}

.main_btn_com:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.down_btn {
    background: var(--brand-c) !important;
    box-shadow: 0 10px 22px rgba(var(--brand-c-rgb), .28);
}

.agin_udp_btn {
    border-color: var(--brand-c) !important;
    color: var(--brand-c) !important;
    background: #fff !important;
}

.main_btn_com .icon {
    width: 18px;
    height: 18px;
}

/* --------------------------------------------------------------------------
   常用尺寸
   -------------------------------------------------------------------------- */
.sizes-section {
    padding: 52px 0 32px;
}

.sizes-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.sizes-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
}

.size-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 22px 16px;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .03);
    transition: all .25s ease;
}

.size-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 26px rgba(15, 23, 42, .08);
    border-color: rgba(var(--brand-c-rgb), .25);
}

.size-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 48px;
    border-radius: 8px;
    background: #eff6ff;
    color: var(--brand-c);
    flex-shrink: 0;
}

.size-icon .icon {
    width: 20px;
    height: 20px;
}

.size-info h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 4px;
}

.size-info p {
    font-size: 12px;
    color: var(--muted-2);
    margin: 0;
}

/* --------------------------------------------------------------------------
   三步流程
   -------------------------------------------------------------------------- */
.steps-section {
    padding: 40px 0 76px;
}

.steps-container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.step-card {
    position: relative;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    padding: 34px 24px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .03);
    transition: all .3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px -5px rgba(var(--brand-c-rgb), .12),
        0 8px 10px -6px rgba(var(--brand-c-rgb), .08);
}

.step-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--brand-c);
    color: #fff;
    font-size: 14px;
    font-weight: 800;
}

.step-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 68px;
    margin: 0 auto 18px;
    border-radius: 20px;
    background: #eff6ff;
    color: var(--brand-c);
}

.step-icon .icon {
    width: 30px;
    height: 30px;
}

.step-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 10px;
}

.step-card p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
    margin: 0;
}

.steps-action {
    margin-top: 34px;
    text-align: center;
}

/* --------------------------------------------------------------------------
   文章区（首页）
   -------------------------------------------------------------------------- */
.articles-section {
    padding: 56px 0 72px;
    background: #fff;
}

.articles-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.article-card-mini {
    display: block;
    padding: 22px 24px;
    background: #f8fafc;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    transition: all .25s ease;
}

.article-card-mini:hover {
    background: #fff;
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(15, 23, 42, .08);
    border-color: rgba(var(--brand-c-rgb), .25);
}

.article-card-mini__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.mini-tag {
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(var(--brand-c-rgb), .1);
    color: var(--brand-c);
    font-size: 12px;
    font-weight: 700;
}

.article-card-mini__head time {
    font-size: 12px;
    color: var(--muted-2);
}

.article-card-mini h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.45;
    color: var(--ink);
    margin: 0 0 8px;
}

.article-card-mini p {
    font-size: 13px;
    line-height: 1.7;
    color: var(--muted);
    margin: 0 0 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mini-more {
    font-size: 13px;
    font-weight: 700;
    color: var(--brand-c);
}

/* --------------------------------------------------------------------------
   拍摄指南
   -------------------------------------------------------------------------- */
.guide-section {
    background: linear-gradient(180deg, #f2f6ff 0%, var(--bg-soft) 100%) !important;
    padding: 56px 20px 72px !important;
    border-top: none;
}

.guide-title {
    margin: 0 0 8px;
}

.guide_grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(280px, 1fr));
    gap: 20px;
    max-width: 980px;
    margin: 30px auto 0;
    padding: 0 16px;
}

.guide-card {
    display: flex !important;
    align-items: center;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    padding: 24px 28px;
    margin: 0 !important;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .03);
    transition: transform .25s ease, box-shadow .25s ease;
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 26px rgba(15, 23, 42, .08);
}

.guide-card img {
    width: 54px !important;
    height: 54px !important;
    margin-right: 22px !important;
    box-shadow: 0 8px 20px rgba(var(--brand-c-rgb), .22);
}

.guide_item {
    font-size: 18px;
    font-weight: 700;
}

/* --------------------------------------------------------------------------
   文章列表 / 详情
   -------------------------------------------------------------------------- */
.article-page {
    max-width: 920px;
    margin: 0 auto;
    padding: 34px 20px 190px;
}

.article-crumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 18px;
}

.article-crumb a {
    color: var(--brand-c);
}

.article-crumb .sep {
    color: #cbd5e1;
}

.article-crumb .cur {
    color: var(--muted);
    max-width: 240px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.article-card {
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(15, 23, 42, .06);
    padding: 34px 42px 28px;
}

.article-head h1 {
    font-size: 30px;
    line-height: 1.4;
    color: var(--ink);
    font-weight: 800;
    margin: 0 0 14px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
    font-size: 13px;
    padding-bottom: 18px;
    border-bottom: 1px dashed var(--line);
    margin-bottom: 24px;
}

.article-meta .tag {
    background: rgba(var(--brand-c-rgb), .1);
    color: var(--brand-c);
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.article-body {
    font-size: 16px;
    line-height: 1.95;
    color: #374151;
    word-break: break-word;
}

.article-body p {
    margin: 0 0 16px;
}

.article-body h2,
.article-body h3,
.article-body h4 {
    color: var(--ink);
    margin: 26px 0 12px;
    line-height: 1.4;
}

.article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 14px 0;
    box-shadow: var(--shadow-sm);
}

.article-body ul,
.article-body ol {
    margin: 0 0 16px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 6px;
}

.article-body blockquote {
    border-left: 4px solid var(--brand-c);
    background: #f7faff;
    padding: 12px 18px;
    border-radius: 0 10px 10px 0;
    margin: 16px 0;
    color: #4b5563;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.article-body th,
.article-body td {
    border: 1px solid var(--line);
    padding: 8px 12px;
}

.article-foot {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-soft);
    color: var(--brand-c);
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all .25s ease;
}

.back-btn:hover {
    background: var(--brand-c);
    color: #fff;
}

.article-list-head h1 {
    font-size: 32px;
    font-weight: 800;
    margin: 0 0 8px;
}

.article-list-head p {
    color: var(--muted);
    margin: 0 0 22px;
    font-size: 15px;
}

.article-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.article-item {
    display: block;
    background: #fff;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    padding: 26px 30px;
    box-shadow: 0 2px 10px rgba(15, 23, 42, .03);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.article-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(15, 23, 42, .08);
    border-color: rgba(var(--brand-c-rgb), .25);
}

.article-item h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 10px;
    transition: color .2s ease;
}

.article-item:hover h2 {
    color: var(--brand-c);
}

.article-item-desc {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
    margin: 0 0 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #9ca3af;
    font-size: 13px;
}

.article-item-meta .more {
    color: var(--brand-c);
    font-weight: 600;
}

.page {
    margin-top: 30px;
}

.page a,
.page span {
    border-radius: 999px !important;
}

.page .pagination .active a {
    background: var(--brand-c) !important;
    border-color: transparent !important;
    box-shadow: 0 8px 18px rgba(var(--brand-c-rgb), .28);
    color: #fff !important;
}

/* --------------------------------------------------------------------------
   页脚（深色多栏）
   -------------------------------------------------------------------------- */
.site-footer,
.site-footer.bottom_us,
.site-footer.layui-footer {
    background: #0f172a;
    border-top: 1px solid #1e293b;
    padding: 18px 16px 14px;
    color: #cbd5e1;
}

.site-footer .site-footer__brand {
    max-width: 640px;
    margin: 0 auto 10px;
    text-align: center;
}

.site-footer__brand-name {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -.02em;
    color: #fff;
}

.site-footer__brand-desc {
    margin: 5px 0 0;
    font-size: 12px;
    line-height: 1.6;
    color: #94a3b8;
}

.site-footer p {
    margin: 3px 0;
    color: #94a3b8;
    opacity: 1;
}

.site-footer a {
    color: #94a3b8;
    transition: color .2s ease;
}

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

.site-footer .icon {
    width: 16px;
    height: 16px;
    color: #60a5fa;
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1199px) {
    .sizes-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .photo-stack {
        transform: scale(.88);
        transform-origin: right center;
    }
}

@media (max-width: 991px) {
    .hero-section {
        padding: 56px 0 84px;
    }

    .hero-container {
        gap: 24px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .photo-stack {
        transform: scale(.72);
        transform-origin: right center;
    }

    .features-container {
        flex-wrap: wrap;
    }

    .feature-card {
        flex: 1 1 45%;
    }
}

@media (max-width: 767px) {
    .site-header__inner {
        min-height: 64px;
        padding: 0 16px;
    }

    .site-header__brand {
        font-size: 20px;
    }

    .site-header__brand img {
        height: 44px;
    }

    .site-header__nav,
    .site-header__action {
        display: none;
    }

    .mobile-menu-toggle {
        display: inline-flex;
    }

    .hero-section {
        padding: 44px 0 72px;
    }

    .hero-container {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 17px;
        margin-bottom: 20px;
    }

    .hero-features {
        justify-content: center;
        margin-bottom: 24px;
        gap: 10px 16px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-security {
        justify-content: center;
    }

    .hero-image-wrap {
        display: none;
    }

    .features-section {
        margin-top: -36px;
    }

    .features-container {
        padding: 20px 16px;
        gap: 8px;
    }

    .feature-card {
        flex: 1 1 100%;
        padding: 6px;
    }

    .spec_photo {
        padding: 24px 16px 32px;
        border-radius: 16px;
        margin: 0 12px 40px;
    }

    .section-title {
        font-size: 24px;
    }

    .sizes-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .size-card {
        padding: 16px 12px;
    }

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

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

    .guide_grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .guide-card {
        padding: 18px 20px;
    }

    .guide-card img {
        width: 46px !important;
        height: 46px !important;
        margin-right: 16px !important;
    }

    .article-page {
        padding: 22px 14px 170px;
    }

    .article-card {
        padding: 24px 20px 20px;
        border-radius: 16px;
    }

    .article-head h1 {
        font-size: 24px;
    }

    .article-body {
        font-size: 15px;
    }

    .article-item {
        padding: 20px;
    }

    .section-header .more-link {
        position: static;
        margin-top: 10px;
        justify-content: center;
    }

    .section-header {
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .sizes-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 28px;
    }

    .btn {
        height: 48px;
        padding: 0 20px;
        font-size: 15px;
    }
}