/* ========== 基础 ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg-dark:      #0f1115;
    --bg-dark-2:    #161920;
    --bg-card:      #1a1d24;
    --bg-card-2:    #20242e;
    --border:       #262b36;
    --border-light: #2f3542;

    --text:         #eaecef;
    --text-sub:     #9aa4b2;
    --text-mute:    #6b7280;

    --cyan:         #00d4ff;
    --blue:         #4f8cff;
    --primary:      #e63946;   /* 保留 CTA 品牌红 */
    --primary-dark: #c1121f;
    --gold:         #ffc857;
    --green:        #22c55e;

    --radius:       14px;
    --radius-lg:    20px;
    --shadow:       0 12px 40px rgba(0,0,0,.45);
    --glow-cyan:    0 0 24px rgba(0,212,255,.35);
    --glow-blue:    0 0 24px rgba(79,140,255,.35);
}
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========== 按钮 ========== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 22px; border-radius: 10px; font-size: 14px; font-weight: 600;
    cursor: pointer; border: none; transition: all .25s ease; white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), #ff5b6a);
    color: #fff; box-shadow: 0 6px 20px rgba(230,57,70,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(230,57,70,.5); }
.btn-outline {
    background: transparent; color: var(--text);
    border: 1px solid var(--border-light);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-outline-dark {
    background: transparent; color: var(--cyan);
    border: 1px solid rgba(0,212,255,.4);
}
.btn-outline-dark:hover { background: rgba(0,212,255,.08); border-color: var(--cyan); }
.btn-ghost {
    background: rgba(255,255,255,.06); color: var(--text);
    border: 1px solid rgba(255,255,255,.12);
    backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-lg { padding: 14px 32px; font-size: 15px; border-radius: 12px; }
.btn-block { width: 100%; }
.btn-sm { padding: 5px 14px; font-size: 13px; border-radius: 6px; background: var(--bg-card-2); color: var(--text); }

/* ========== 头部 ========== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(15,17,21,.82);
    border-bottom: 1px solid rgba(255,255,255,.06);
    backdrop-filter: blur(14px);
}
.header-inner {
    max-width: 1280px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
    height: 72px; gap: 24px;
}
.header-logo img { height: 40px; }
.header-nav { display: flex; gap: 6px; }
.header-nav a {
    padding: 8px 16px; font-size: 14px; border-radius: 8px;
    color: var(--text-sub); transition: all .2s;
}
.header-nav a:hover, .header-nav a.active {
    color: #fff; background: rgba(255,255,255,.06);
}
.header-nav a.active { color: var(--cyan); }
.header-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.header-actions { display: flex; gap: 8px; }
.header-qq { font-size: 12px; color: var(--text-mute); }
.header-qq::before { content: '●'; color: var(--green); margin-right: 6px; font-size: 10px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.menu-toggle span { width: 24px; height: 2px; background: #fff; border-radius: 2px; }

.site-main { margin-top: 72px; }

/* ========== 固定 Hero ========== */
.hero-fixed {
    position: relative;
    height: calc(100vh - 72px);
    min-height: 640px;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    background: #000;
}
.hero-bg {
    position: absolute; inset: 0;
    background-image: url('https://images.unsplash.com/photo-1535320903710-d993d3d77d29?w=1920&q=80');
    background-size: cover; background-position: center;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom {
    from { transform: scale(1.05); }
    to   { transform: scale(1.12); }
}
.hero-overlay {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 40%, rgba(0,212,255,.15) 0%, transparent 55%),
        radial-gradient(ellipse at 80% 60%, rgba(79,140,255,.15) 0%, transparent 55%),
        linear-gradient(180deg, rgba(15,17,21,.78) 0%, rgba(15,17,21,.92) 100%);
}
/* 科技网格线 */
.hero-grid {
    position: absolute; inset: 0; opacity: .12;
    background-image:
        linear-gradient(rgba(0,212,255,.35) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,.35) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 75%);
}
.hero-content {
    position: relative; z-index: 3;
    max-width: 900px; padding: 0 24px; text-align: center;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 18px; border-radius: 100px;
    background: rgba(0,212,255,.08);
    border: 1px solid rgba(0,212,255,.3);
    color: var(--cyan); font-size: 13px; font-weight: 500;
    margin-bottom: 28px;
    backdrop-filter: blur(6px);
}
.dot-pulse {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--cyan); box-shadow: 0 0 0 0 rgba(0,212,255,.7);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(0,212,255,.7); }
    70%  { box-shadow: 0 0 0 12px rgba(0,212,255,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,212,255,0); }
}
.hero-title {
    font-size: 56px; line-height: 1.15; font-weight: 800;
    letter-spacing: -1px; margin-bottom: 22px;
    text-shadow: 0 4px 30px rgba(0,0,0,.5);
}
.gradient-text {
    background: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 60%, #a78bfa 100%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-desc {
    font-size: 17px; color: var(--text-sub);
    max-width: 640px; margin: 0 auto 36px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Hero 底部数据条 */
.hero-stats-bar {
    margin-top: 56px;
    display: inline-flex; align-items: center; gap: 32px;
    padding: 20px 36px; border-radius: 16px;
    background: rgba(22,25,32,.65);
    border: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}
.hsb-item { text-align: center; }
.hsb-num {
    font-size: 26px; font-weight: 800;
    color: #fff; letter-spacing: -.5px;
    font-variant-numeric: tabular-nums;
}
.hsb-num::after { content: attr(data-suffix); color: var(--cyan); margin-left: 2px; font-size: 18px; }
.hsb-label { font-size: 12px; color: var(--text-mute); margin-top: 2px; }
.hsb-divider { width: 1px; height: 32px; background: rgba(255,255,255,.1); }

/* 向下滚动提示 */
.hero-scroll-hint {
    position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    color: var(--text-mute); font-size: 12px; z-index: 3;
}
.scroll-line {
    width: 1px; height: 32px;
    background: linear-gradient(180deg, var(--cyan), transparent);
    animation: scrollDown 2s infinite;
}
@keyframes scrollDown {
    0%,100% { transform: translateY(0); opacity: 1; }
    50%     { transform: translateY(8px); opacity: .5; }
}

/* ========== 通用 Section ========== */
.section { padding: 96px 0; position: relative; }
.section:nth-child(even) { background: var(--bg-dark-2); }

.section-head { text-align: center; margin-bottom: 56px; }
.section-tag {
    display: inline-block; padding: 6px 14px; border-radius: 100px;
    background: rgba(0,212,255,.08); color: var(--cyan);
    font-size: 12px; font-weight: 600; letter-spacing: 2px;
    margin-bottom: 16px; border: 1px solid rgba(0,212,255,.2);
}
.section-tag.tag-light { background: rgba(0,212,255,.1); }
.section-title { font-size: 36px; font-weight: 800; letter-spacing: -1px; margin-bottom: 12px; }
.section-subtitle { color: var(--text-sub); font-size: 15px; max-width: 560px; margin: 0 auto; }

/* ========== 交易产品卡片 ========== */
.product-grid-tech {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.product-card-tech {
    position: relative; overflow: hidden;
    background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-dark-2) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all .35s cubic-bezier(.2,.8,.2,1);
}
.product-card-tech::before {
    content: ''; position: absolute; inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px; pointer-events: none;
    background: linear-gradient(135deg, transparent 30%, rgba(0,212,255,.5) 50%, transparent 70%);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    opacity: 0; transition: opacity .35s;
}
.product-card-tech:hover {
    transform: translateY(-8px);
    border-color: transparent;
    box-shadow: var(--glow-cyan), 0 20px 50px rgba(0,0,0,.5);
}
.product-card-tech:hover::before { opacity: 1; }
.pct-glow {
    position: absolute; top: -40px; right: -40px;
    width: 140px; height: 140px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,212,255,.22) 0%, transparent 70%);
    filter: blur(10px); transition: transform .5s;
}
.product-card-tech:hover .pct-glow { transform: scale(1.4); }
.pct-icon {
    font-size: 36px; margin-bottom: 18px;
    display: inline-flex; align-items: center; justify-content: center;
    width: 64px; height: 64px; border-radius: 16px;
    background: rgba(0,212,255,.08);
    border: 1px solid rgba(0,212,255,.2);
}
.product-card-tech h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.product-card-tech p { font-size: 14px; color: var(--text-sub); line-height: 1.6; margin-bottom: 20px; }
.pct-meta {
    display: flex; gap: 8px; flex-wrap: wrap;
    padding-top: 16px; border-top: 1px solid var(--border);
}
.pct-meta span {
    font-size: 12px; padding: 4px 10px; border-radius: 100px;
    background: rgba(0,212,255,.06);
    color: var(--cyan); font-weight: 500;
}

/* ========== 账户卡片（含环形进度） ========== */
.account-grid-tech {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.account-card-tech {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 32px 32px;
    transition: all .35s ease;
}
.account-card-tech:hover {
    border-color: rgba(0,212,255,.4);
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0,0,0,.5);
}
.account-card-tech.featured {
    background: linear-gradient(180deg, rgba(0,212,255,.06) 0%, var(--bg-card) 40%);
    border-color: rgba(0,212,255,.35);
    box-shadow: 0 20px 60px rgba(0,212,255,.1);
}
.ac-ribbon {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 5px 16px; border-radius: 100px;
    background: linear-gradient(135deg, var(--cyan), var(--blue));
    color: #0f1115; font-size: 11px; font-weight: 800;
    letter-spacing: 1px; text-transform: uppercase;
    box-shadow: var(--glow-cyan);
}
.ac-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.ac-head h3 { font-size: 18px; font-weight: 700; }
.ac-tag {
    font-size: 11px; padding: 3px 10px; border-radius: 6px;
    background: rgba(0,212,255,.1); color: var(--cyan); font-weight: 700;
    letter-spacing: .5px;
}
.ac-desc { font-size: 13px; color: var(--text-sub); margin-bottom: 24px; min-height: 42px; }

/* 环形进度 */
.ac-ring {
    position: relative; width: 140px; height: 140px; margin: 0 auto 24px;
}
.ac-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: rgba(255,255,255,.06); stroke-width: 6; }
.ring-fill {
    fill: none; stroke: url(#ringGrad); stroke-width: 6; stroke-linecap: round;
    stroke: var(--cyan);
    filter: drop-shadow(0 0 6px rgba(0,212,255,.6));
    transition: stroke-dashoffset 1.6s cubic-bezier(.2,.8,.2,1);
}
.ring-text {
    position: absolute; inset: 0;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.ring-text strong { font-size: 26px; font-weight: 800; color: #fff; }
.ring-text span { font-size: 11px; color: var(--text-mute); }

.ac-list { border-top: 1px solid var(--border); padding-top: 18px; }
.ac-list li {
    font-size: 13.5px; color: var(--text-sub);
    padding: 7px 0 7px 22px; position: relative;
}
.ac-list li::before {
    content: ''; position: absolute; left: 0; top: 15px;
    width: 12px; height: 12px; border-radius: 50%;
    background: rgba(0,212,255,.15);
    box-shadow: inset 0 0 0 2px var(--cyan);
}

/* ========== 数据盘 ========== */
.section-stats-tech {
    background: var(--bg-dark) !important;
    position: relative; overflow: hidden;
}
.section-stats-tech::before {
    content: ''; position: absolute; inset: 0;
    background:
        radial-gradient(circle at 10% 20%, rgba(0,212,255,.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(79,140,255,.1) 0%, transparent 40%);
    pointer-events: none;
}
.stats-dashboard {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
    position: relative; z-index: 1;
}
.stat-tile {
    background: linear-gradient(160deg, var(--bg-card) 0%, var(--bg-dark-2) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all .3s;
}
.stat-tile:hover {
    border-color: rgba(0,212,255,.4);
    transform: translateY(-4px);
}
.stat-num {
    font-size: 32px; font-weight: 800; letter-spacing: -1px;
    color: #fff; margin-bottom: 6px;
    font-variant-numeric: tabular-nums;
}
.stat-num::after { content: attr(data-suffix); color: var(--cyan); font-size: 20px; margin-left: 2px; }
.stat-label { font-size: 13px; color: var(--text-sub); margin-bottom: 16px; }
.stat-bar {
    height: 4px; border-radius: 100px;
    background: rgba(255,255,255,.06); overflow: hidden;
}
.stat-bar span {
    display: block; height: 100%; border-radius: 100px;
    background: linear-gradient(90deg, var(--cyan), var(--blue));
    width: 0; transition: width 1.6s cubic-bezier(.2,.8,.2,1);
    box-shadow: 0 0 12px rgba(0,212,255,.6);
}

/* ========== 新闻卡片 ========== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all .3s;
}
.news-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,212,255,.4);
    box-shadow: 0 16px 40px rgba(0,0,0,.5);
}
.news-card-body { padding: 28px 26px; }
.news-card time { font-size: 12px; color: var(--text-mute); letter-spacing: 1px; }
.news-card h3 { font-size: 17px; font-weight: 700; margin: 10px 0; line-height: 1.4; }
.news-card h3 a:hover { color: var(--cyan); }
.news-card p { font-size: 13.5px; color: var(--text-sub); margin-bottom: 14px; }
.read-more { color: var(--cyan); font-size: 13px; font-weight: 600; }
.read-more:hover { text-decoration: underline; }
.news-more { text-align: center; margin-top: 48px; }

/* ========== 页面 Hero（内页） ========== */
.page-hero {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-2) 100%);
    color: #fff; padding: 96px 0 72px; text-align: center;
    position: relative; overflow: hidden;
}
.page-hero::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,.1) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
    opacity: .6;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: -1px; margin-bottom: 12px; }
.page-hero p { color: var(--text-sub); font-size: 15px; }
.page-hero-small { padding: 72px 0 48px; }
.page-hero-small h1 { font-size: 32px; }

/* ========== 内容窄栏 ========== */
.content-narrow { max-width: 800px; margin: 0 auto; }
.content-narrow h2 {
    font-size: 22px; font-weight: 700; margin: 40px 0 16px;
    padding-bottom: 8px; position: relative;
}
.content-narrow h2::after {
    content: ''; position: absolute; left: 0; bottom: 0;
    width: 40px; height: 3px; border-radius: 3px;
    background: linear-gradient(90deg, var(--cyan), var(--blue));
}
.content-narrow p, .content-narrow li { color: var(--text-sub); margin-bottom: 12px; }
.content-narrow ul { padding-left: 20px; list-style: disc; }
.content-narrow strong { color: var(--text); }

/* ========== 新闻列表 ========== */
.news-list { max-width: 800px; margin: 0 auto; }
.news-list-item {
    padding: 32px 0; border-bottom: 1px solid var(--border);
    transition: all .3s;
}
.news-list-item:hover { padding-left: 12px; }
.news-list-item time { font-size: 13px; color: var(--text-mute); }
.news-list-item h2 { font-size: 22px; margin: 8px 0; font-weight: 700; }
.news-list-item h2 a:hover { color: var(--cyan); }
.news-list-item p { color: var(--text-sub); margin-bottom: 12px; }
.pagination { display: flex; justify-content: center; gap: 12px; margin-top: 40px; }

/* ========== 文章正文 ========== */
.article-body { max-width: 800px; margin: 0 auto; font-size: 16px; line-height: 1.9; color: var(--text-sub); }
.article-body h2 { font-size: 24px; margin: 32px 0 16px; color: var(--text); font-weight: 700; }
.article-body h3 { font-size: 19px; margin: 24px 0 12px; color: var(--text); }
.article-body p { margin-bottom: 16px; }
.article-body ul, .article-body ol { margin: 16px 0; padding-left: 24px; }
.article-body li { margin-bottom: 8px; }
.article-body img { border-radius: 8px; margin: 24px 0; }
.article-body a { color: var(--cyan); }
.article-back { text-align: center; padding: 40px 0; }
.article-meta { color: var(--text-mute); font-size: 13px; }

/* ========== 联系我们卡片 ========== */
.contact-info { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.contact-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 32px;
    transition: all .3s;
}
.contact-card:hover { border-color: rgba(0,212,255,.4); transform: translateY(-3px); }
.contact-card h2 { font-size: 16px; color: var(--cyan); margin-bottom: 12px; font-weight: 600; }
.contact-value { font-size: 22px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.contact-card p:last-child { font-size: 13px; color: var(--text-mute); }

/* ========== 底部 ========== */
.site-footer {
    background: #0a0c10; color: var(--text-sub);
    padding: 64px 0 0; border-top: 1px solid var(--border);
}
.footer-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px;
}
.footer-logo { height: 36px; margin-bottom: 16px; }
.footer-links h4, .footer-contact h4 {
    color: #fff; font-size: 15px; margin-bottom: 16px; font-weight: 700;
}
.footer-links a { display: block; padding: 5px 0; font-size: 13.5px; transition: color .2s; }
.footer-links a:hover { color: var(--cyan); }
.footer-contact p { font-size: 13.5px; margin-bottom: 8px; }
.footer-bottom {
    max-width: 1200px; margin: 40px auto 0; padding: 24px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
    font-size: 12.5px; color: var(--text-mute); flex-wrap: wrap; gap: 12px;
}
.footer-admin-link { font-size: 12px; opacity: .5; transition: opacity .2s; }
.footer-admin-link:hover { opacity: 1; color: var(--cyan); }

/* ========== 后台样式（保持原有，微调色） ========== */
.admin-body { background: #f1f5f9; min-height: 100vh; color: #1a1a2e; }
.admin-login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg-dark); }
.admin-login-box { background: #fff; border-radius: 16px; padding: 48px; width: 400px; max-width: 90vw; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.admin-login-box h1 { text-align: center; margin-bottom: 32px; font-size: 22px; }
.admin-login-hint { text-align: center; font-size: 13px; color: #6b7280; margin-top: 16px; }
.error { color: var(--primary); text-align: center; margin-bottom: 16px; font-size: 14px; }
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar { width: 240px; background: var(--bg-dark); color: #fff; padding: 24px 0; flex-shrink: 0; }
.admin-sidebar h2 { padding: 0 24px 24px; font-size: 17px; border-bottom: 1px solid rgba(255,255,255,.1); margin-bottom: 16px; }
.admin-sidebar h2 a { color: #fff; }
.admin-sidebar nav a { display: block; padding: 12px 24px; color: rgba(255,255,255,.7); font-size: 14px; transition: all .2s; }
.admin-sidebar nav a:hover, .admin-sidebar nav a.active { background: rgba(0,212,255,.1); color: var(--cyan); border-left: 3px solid var(--cyan); padding-left: 21px; }
.admin-content { flex: 1; padding: 32px; overflow-x: auto; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.admin-header h1 { font-size: 22px; color: #1a1a2e; }
.saved-msg { color: #16a34a; font-size: 14px; font-weight: 600; }
.admin-hint { font-size: 13px; color: #6b7280; margin-top: 12px; }
.admin-table { width: 100%; background: #fff; border-radius: 12px; overflow: hidden; border-collapse: collapse; }
.admin-table th, .admin-table td { padding: 14px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid #e5e7eb; }
.admin-table th { background: #f8f9fb; font-weight: 600; }
.admin-form { max-width: 800px; background: #fff; border-radius: 12px; padding: 32px; color: #1a1a2e; }
.admin-fieldset { border: 1px solid #e5e7eb; border-radius: 8px; padding: 20px; margin-bottom: 24px; }
.admin-fieldset legend { font-weight: 600; padding: 0 8px; font-size: 15px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.form-group input[type="text"], .form-group input[type="password"],
.form-group textarea, .form-group select {
    width: 100%; padding: 10px 12px; border: 1px solid #e5e7eb;
    border-radius: 6px; font-size: 14px; font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--cyan); }
.form-group.checkbox { display: flex; align-items: center; gap: 8px; }
.form-group.checkbox input { width: auto; }
.admin-card { background: #fff; border-radius: 12px; padding: 32px; max-width: 600px; color: #1a1a2e; }
.admin-card h3 { margin-bottom: 12px; }
.admin-form-inline { display: flex; gap: 12px; margin-top: 16px; }
.admin-form-inline select { padding: 8px 16px; border: 1px solid #e5e7eb; border-radius: 6px; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .product-grid-tech { grid-template-columns: repeat(2, 1fr); }
    .stats-dashboard { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
    .hero-title { font-size: 44px; }
    .admin-sidebar { width: 200px; }
}
@media (max-width: 768px) {
    .header-nav, .header-actions, .header-right { display: none; }
    .menu-toggle { display: flex; }
    .header-inner { height: 64px; }
    .site-main { margin-top: 64px; }

    .hero-fixed { height: auto; min-height: calc(100vh - 64px); padding: 80px 0 60px; }
    .hero-title { font-size: 30px; letter-spacing: -.5px; }
    .hero-desc { font-size: 15px; }
    .hero-actions .btn { flex: 1; min-width: 140px; }
    .hero-stats-bar {
        flex-wrap: wrap; gap: 16px; padding: 16px 20px; margin-top: 36px;
    }
    .hsb-item { flex: 1 1 40%; }
    .hsb-divider { display: none; }
    .hsb-num { font-size: 20px; }
    .hero-scroll-hint { display: none; }

    .section { padding: 56px 0; }
    .section-title { font-size: 24px; }
    .section-subtitle { font-size: 14px; }

    .product-grid-tech, .account-grid-tech, .news-grid, .contact-info, .stats-dashboard {
        grid-template-columns: 1fr;
    }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }

    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; }
    .admin-content { padding: 16px; }
    .page-hero h1 { font-size: 26px; }
    .page-hero { padding: 64px 0 48px; }
}