/* ==========================================================================
   毂仓 · 科技感主题样式（前台首页 + 会员中心）
   --------------------------------------------------------------------------
   作用域：.tech-home    → application/index/view/index/index.html（首页）
           body.tech-page → application/index/view/user/index.html（会员中心）
   依赖：Bootstrap 3 / Font Awesome / frontend.css（基础框架与图标）
   说明：首页主视觉与图集图片由 assets/js/frontend/tech_theme.js 每次随机选取，
        图片来源于 Unsplash 图片库 CDN（images.unsplash.com），失效时自动降级
        到 Picsum 图片库（picsum.photos）。
   ========================================================================== */

:root {
    --tk-bg: #050a14;
    --tk-bg-soft: #071426;
    --tk-panel: rgba(14, 32, 56, 0.72);
    --tk-line: rgba(96, 170, 255, 0.16);
    --tk-line-strong: rgba(34, 211, 238, 0.45);
    --tk-ink: #e6f0ff;
    --tk-muted: #8fa4c0;
    --tk-cyan: #22d3ee;
    --tk-blue: #2f6fed;
    --tk-deep: #233a5e;
    --tk-radius: 16px;
    --tk-shadow: 0 24px 60px rgba(0, 8, 20, 0.55);
}

/* ========================== 首页：基础与导航 ========================== */

body.tech-home {
    padding-top: 0;
    background: var(--tk-bg);
    color: var(--tk-ink);
    overflow-x: hidden;
}

.tech-home,
body.tech-page {
    font-family: "Roboto", "SF Pro SC", "SF Pro Display", "PingFang SC", BlinkMacSystemFont, -apple-system, "Segoe UI", "Microsoft Yahei", "Helvetica Neue", Arial, sans-serif;
}

.tech-home a {
    text-decoration: none;
}

.tk-nav.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
    margin: 0;
    padding: 16px 0;
    border: 0;
    border-radius: 0;
    background: linear-gradient(180deg, rgba(5, 10, 20, 0.86) 0%, rgba(5, 10, 20, 0) 100%);
    transition: padding 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.tk-nav.navbar.is-scrolled {
    padding: 8px 0;
    background: rgba(6, 14, 26, 0.9);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(96, 170, 255, 0.16), 0 18px 40px rgba(0, 4, 12, 0.45);
}

.tk-nav .navbar-brand {
    display: flex;
    align-items: center;
    height: auto;
    padding: 0;
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.tk-nav .navbar-brand:hover,
.tk-nav .navbar-brand:focus {
    color: #fff;
}

.tk-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    margin-right: 10px;
    color: #04121f;
    background: linear-gradient(140deg, #7ff0ff 0%, #22d3ee 45%, #2f6fed 100%);
    clip-path: polygon(25% 4%, 75% 4%, 100% 50%, 75% 96%, 25% 96%, 0 50%);
    box-shadow: 0 0 22px rgba(34, 211, 238, 0.55);
    font-size: 17px;
}

.tk-brand-text small {
    display: block;
    margin-top: 3px;
    color: rgba(143, 164, 192, 0.9);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.18em;
}

.tk-nav .navbar-nav > li > a {
    position: relative;
    height: auto;
    padding: 12px 15px;
    color: rgba(230, 240, 255, 0.76);
    font-size: 14px;
    line-height: 20px;
    background: transparent;
}

.tk-nav .navbar-nav > li > a:hover,
.tk-nav .navbar-nav > li > a:focus {
    color: #fff;
    background: transparent;
}

.tk-nav .navbar-nav > li > a::after {
    content: "";
    position: absolute;
    left: 15px;
    right: 15px;
    bottom: 4px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, var(--tk-cyan), transparent);
    opacity: 0;
    transform: scaleX(0.4);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.tk-nav .navbar-nav > li > a:hover::after,
.tk-nav .navbar-nav > .active > a::after {
    opacity: 1;
    transform: scaleX(1);
}

.tk-nav .navbar-nav > .active > a,
.tk-nav .navbar-nav > .active > a:hover,
.tk-nav .navbar-nav > .active > a:focus {
    color: var(--tk-cyan);
    background: transparent;
}

.tk-nav .navbar-nav .nav-partwork > a {
    color: #9ff3ff;
}

.tk-nav .navbar-toggle {
    border-color: rgba(96, 170, 255, 0.35);
}

.tk-nav .navbar-toggle .icon-bar {
    background-color: rgba(230, 240, 255, 0.85);
}

.tk-nav .navbar-collapse {
    border: 0;
}

.tk-nav .dropdown-menu {
    min-width: 150px;
    padding: 8px 0;
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-radius: 12px;
    background: rgba(8, 20, 36, 0.97);
    box-shadow: 0 18px 40px rgba(0, 6, 16, 0.6);
}

.tk-nav .dropdown-menu > li > a {
    padding: 9px 18px;
    color: rgba(230, 240, 255, 0.82);
}

.tk-nav .dropdown-menu > li > a:hover,
.tk-nav .dropdown-menu > li > a:focus {
    color: var(--tk-cyan);
    background: rgba(34, 211, 238, 0.08);
}

.tk-nav .nav li .avatar-img img {
    border: 1px solid rgba(34, 211, 238, 0.65);
    box-shadow: 0 0 12px rgba(34, 211, 238, 0.45);
}

/* ========================== 首页：主视觉 ========================== */

.th-hero {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 100vh;
    padding: 150px 0 110px;
    overflow: hidden;
    background: radial-gradient(circle at 18% 20%, #0d2b4d 0%, #050a14 55%, #03060d 100%);
}

.th-hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 0;
    background: radial-gradient(circle at 70% 30%, #103456 0%, #050a14 70%);
}

.th-layer {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    opacity: 0;
    transition: opacity 1.6s ease;
    will-change: opacity;
}

.th-layer img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity 1.2s ease;
}

.th-layer.is-loaded img {
    opacity: 1;
}

.th-layer.is-active {
    opacity: 1;
}

.th-layer.is-active img {
    animation: thKenBurns 20s ease-out both;
}

@keyframes thKenBurns {
    0% { transform: scale(1.12) translate3d(0, 0, 0); }
    100% { transform: scale(1) translate3d(-1.2%, -1%, 0); }
}

.th-hero-veil {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    background:
        linear-gradient(90deg, rgba(4, 9, 18, 0.95) 0%, rgba(4, 9, 18, 0.78) 42%, rgba(4, 9, 18, 0.42) 100%),
        linear-gradient(180deg, rgba(4, 9, 18, 0.88) 0%, rgba(4, 9, 18, 0.12) 38%, rgba(4, 9, 18, 0.96) 100%);
}

.th-hero-grid {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2;
    background-image:
        linear-gradient(rgba(96, 170, 255, 0.09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 170, 255, 0.09) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(ellipse at 60% 40%, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.25) 62%, transparent 88%);
    mask-image: radial-gradient(ellipse at 60% 40%, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.25) 62%, transparent 88%);
    pointer-events: none;
}

.th-particles {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.th-hero-glow {
    position: absolute;
    z-index: 2;
    top: -180px;
    right: -120px;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.28) 0%, rgba(47, 111, 237, 0.12) 45%, transparent 70%);
    filter: blur(10px);
    pointer-events: none;
    animation: thFloat 12s ease-in-out infinite;
}

@keyframes thFloat {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(-30px, 26px, 0); }
}

.th-content {
    position: relative;
    z-index: 3;
}

.th-chip {
    display: inline-flex;
    align-items: center;
    padding: 7px 16px 7px 12px;
    border: 1px solid rgba(34, 211, 238, 0.32);
    border-radius: 999px;
    background: rgba(9, 24, 44, 0.66);
    color: #a9e9ff;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.th-chip .th-dot {
    width: 8px;
    height: 8px;
    margin-right: 10px;
    border-radius: 50%;
    background: var(--tk-cyan);
    box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.7);
    animation: thPulse 2.2s infinite;
}

@keyframes thPulse {
    0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55); }
    70% { box-shadow: 0 0 0 12px rgba(34, 211, 238, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

.th-title {
    margin: 22px 0 8px;
    font-size: 76px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: 0.06em;
    background: linear-gradient(100deg, #ffffff 8%, #b6f2ff 38%, #22d3ee 60%, #8fb6ff 88%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    filter: drop-shadow(0 10px 34px rgba(34, 211, 238, 0.28));
}

.th-title-name {
    background: linear-gradient(120deg, #ffffff 0%, #b6f2ff 45%, #22d3ee 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.th-title-en {
    margin-left: 16px;
    color: rgba(143, 164, 192, 0.72);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.36em;
    text-transform: uppercase;
    -webkit-text-fill-color: rgba(143, 164, 192, 0.72);
}

.th-rotator {
    position: relative;
    height: 34px;
    margin: 16px 0 18px;
    overflow: hidden;
    font-size: 19px;
    letter-spacing: 0.04em;
}

.th-rotate-item {
    position: absolute;
    top: 0;
    left: 0;
    display: inline-flex;
    align-items: center;
    color: #bfe9ff;
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    white-space: nowrap;
}

.th-rotate-item.is-on {
    opacity: 1;
    transform: translateY(0);
}

.th-rotate-item i {
    margin-right: 9px;
    color: var(--tk-cyan);
}

.th-lead {
    max-width: 620px;
    margin: 0 0 30px;
    color: rgba(214, 230, 248, 0.78);
    font-size: 15.5px;
    line-height: 1.95;
}

/* ========================== 首页：按钮 / 数据条 ========================== */

.th-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
}

.th-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 176px;
    margin: 0 14px 14px 0;
    padding: 14px 30px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 15px;
    letter-spacing: 0.04em;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.th-btn i {
    margin-right: 9px;
}

.th-btn:hover,
.th-btn:focus {
    transform: translateY(-2px);
    text-decoration: none;
}

.th-btn-primary {
    color: #02121f;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 48%, #4f9bff 100%);
    box-shadow: 0 12px 34px rgba(34, 211, 238, 0.36);
}

.th-btn-primary:hover,
.th-btn-primary:focus {
    color: #02121f;
    box-shadow: 0 16px 44px rgba(34, 211, 238, 0.52);
}

.th-btn-primary::after {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 45%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.65), transparent);
    transform: skewX(-20deg);
    animation: thShine 4.6s ease-in-out infinite;
}

@keyframes thShine {
    0%, 55% { left: -60%; }
    85%, 100% { left: 130%; }
}

.th-btn-ghost {
    color: #d6ecff;
    border-color: rgba(96, 170, 255, 0.42);
    background: rgba(10, 26, 46, 0.55);
}

.th-btn-ghost:hover,
.th-btn-ghost:focus {
    color: #fff;
    border-color: rgba(34, 211, 238, 0.75);
    background: rgba(34, 211, 238, 0.12);
    box-shadow: 0 14px 32px rgba(3, 10, 22, 0.55);
}

.th-tip {
    margin: 8px 0 0;
    color: rgba(143, 164, 192, 0.85);
    font-size: 12.5px;
    line-height: 1.9;
}

.th-tip a {
    color: var(--tk-cyan);
    border-bottom: 1px dashed rgba(34, 211, 238, 0.5);
}

.th-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    max-width: 880px;
    margin: 52px 0 0;
    border: 1px solid rgba(96, 170, 255, 0.18);
    border-radius: 14px;
    background: rgba(96, 170, 255, 0.16);
    overflow: hidden;
}

.th-stat {
    padding: 20px 22px;
    background: rgba(7, 18, 33, 0.82);
}

.th-stat-label {
    display: block;
    color: rgba(143, 164, 192, 0.9);
    font-size: 11.5px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.th-stat-value {
    display: block;
    margin-top: 8px;
    color: #eaf8ff;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.th-stat-value small {
    margin-left: 6px;
    color: rgba(143, 164, 192, 0.8);
    font-size: 12px;
    font-weight: 400;
}

.th-scroll {
    position: absolute;
    left: 50%;
    bottom: 26px;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgba(143, 164, 192, 0.75);
    font-size: 11px;
    letter-spacing: 0.22em;
    transform: translateX(-50%);
}

.th-scroll:hover,
.th-scroll:focus {
    color: var(--tk-cyan);
}

.th-scroll .th-mouse {
    width: 22px;
    height: 34px;
    margin-bottom: 8px;
    border: 1px solid rgba(96, 170, 255, 0.45);
    border-radius: 12px;
}

.th-scroll .th-mouse::after {
    content: "";
    display: block;
    width: 3px;
    height: 7px;
    margin: 6px auto 0;
    border-radius: 2px;
    background: var(--tk-cyan);
    animation: thScrollDot 1.8s ease-in-out infinite;
}

@keyframes thScrollDot {
    0% { opacity: 0; transform: translateY(0); }
    40% { opacity: 1; }
    100% { opacity: 0; transform: translateY(12px); }
}

/* ========================== 首页：内容区块 ========================== */

.th-section {
    position: relative;
    padding: 92px 0;
    overflow: hidden;
}

.th-section-dark {
    background:
        radial-gradient(circle at 82% 8%, rgba(34, 211, 238, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 6% 82%, rgba(47, 111, 237, 0.14) 0%, transparent 46%),
        linear-gradient(180deg, #050a14 0%, #071426 52%, #050a14 100%);
}

.th-section-dark::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-image:
        linear-gradient(rgba(96, 170, 255, 0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 170, 255, 0.055) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.9) 22%, rgba(0, 0, 0, 0.9) 78%, transparent);
    mask-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.9) 22%, rgba(0, 0, 0, 0.9) 78%, transparent);
    pointer-events: none;
}

.th-section > .container {
    position: relative;
    z-index: 1;
}

.th-section-head {
    max-width: 720px;
    margin: 0 auto 48px;
    text-align: center;
}

.th-eyebrow {
    display: inline-block;
    margin-bottom: 14px;
    color: var(--tk-cyan);
    font-size: 11.5px;
    letter-spacing: 0.32em;
    text-transform: uppercase;
}

.th-h2 {
    margin: 0 0 16px;
    color: #f2f9ff;
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.th-h2 span {
    color: var(--tk-cyan);
}

.th-sub {
    margin: 0;
    color: var(--tk-muted);
    font-size: 14.5px;
    line-height: 1.9;
}

.th-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.th-card {
    position: relative;
    padding: 26px 24px 24px;
    border: 1px solid var(--tk-line);
    border-radius: var(--tk-radius);
    background:
        radial-gradient(320px circle at var(--mx, 50%) var(--my, 0%), rgba(34, 211, 238, 0.14), transparent 62%),
        linear-gradient(160deg, rgba(19, 43, 74, 0.82) 0%, rgba(8, 20, 38, 0.78) 100%);
    box-shadow: 0 18px 40px rgba(1, 7, 16, 0.45);
    transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
    overflow: hidden;
}

.th-card::before,
.th-card::after {
    content: "";
    position: absolute;
    width: 26px;
    height: 26px;
    opacity: 0.55;
    transition: opacity 0.35s ease, border-color 0.35s ease;
}

.th-card::before {
    top: 0;
    left: 0;
    border-top: 2px solid rgba(34, 211, 238, 0.6);
    border-left: 2px solid rgba(34, 211, 238, 0.6);
    border-top-left-radius: var(--tk-radius);
}

.th-card::after {
    right: 0;
    bottom: 0;
    border-right: 2px solid rgba(34, 211, 238, 0.6);
    border-bottom: 2px solid rgba(34, 211, 238, 0.6);
    border-bottom-right-radius: var(--tk-radius);
}

.th-card:hover {
    transform: translateY(-6px);
    border-color: rgba(34, 211, 238, 0.45);
    box-shadow: 0 26px 56px rgba(2, 12, 26, 0.62), 0 0 0 1px rgba(34, 211, 238, 0.12);
}

.th-card:hover::before,
.th-card:hover::after {
    opacity: 1;
    border-color: var(--tk-cyan);
}

.th-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-bottom: 18px;
    border-radius: 12px;
    color: #03121f;
    background: linear-gradient(140deg, #8af3ff 0%, #22d3ee 55%, #3f86f5 100%);
    box-shadow: 0 10px 24px rgba(34, 211, 238, 0.3);
    font-size: 20px;
}

.th-card h3 {
    margin: 0 0 10px;
    color: #eaf6ff;
    font-size: 17.5px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.th-card p {
    margin: 0;
    color: rgba(154, 175, 200, 0.95);
    font-size: 13.5px;
    line-height: 1.85;
}

.th-card-tag {
    display: inline-block;
    margin-top: 16px;
    padding: 3px 10px;
    border: 1px solid rgba(96, 170, 255, 0.28);
    border-radius: 999px;
    color: rgba(159, 243, 255, 0.92);
    font-size: 11px;
    letter-spacing: 0.08em;
}

/* ========================== 首页：业务流程 ========================== */

.th-flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: thFlow;
}

.th-flow li {
    position: relative;
    padding: 24px 22px 22px;
    border: 1px solid rgba(96, 170, 255, 0.14);
    border-radius: 14px;
    background: rgba(8, 20, 36, 0.6);
    counter-increment: thFlow;
    transition: border-color 0.35s ease, background 0.35s ease, transform 0.35s ease;
}

.th-flow li:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.4);
    background: rgba(12, 30, 52, 0.75);
}

.th-flow li::before {
    content: "0" counter(thFlow);
    display: block;
    margin-bottom: 14px;
    color: rgba(34, 211, 238, 0.85);
    font-family: Menlo, Consolas, monospace;
    font-size: 13px;
    letter-spacing: 0.18em;
}

.th-flow li::after {
    content: "";
    position: absolute;
    top: 38px;
    right: -18px;
    width: 18px;
    height: 1px;
    background: linear-gradient(90deg, rgba(34, 211, 238, 0.6), transparent);
}

.th-flow li:last-child::after {
    display: none;
}

.th-flow h4 {
    margin: 0 0 8px;
    color: #eaf6ff;
    font-size: 16px;
    font-weight: 600;
}

.th-flow p {
    margin: 0;
    color: rgba(154, 175, 200, 0.95);
    font-size: 13px;
    line-height: 1.8;
}

/* ========================== 首页：随机图集 ========================== */

.th-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.th-shot {
    position: relative;
    margin: 0;
    border: 1px solid rgba(96, 170, 255, 0.18);
    border-radius: var(--tk-radius);
    background: linear-gradient(160deg, #0b1f36, #050d1a);
    overflow: hidden;
}

.th-shot::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(180deg, rgba(4, 10, 20, 0.05) 0%, rgba(4, 10, 20, 0.55) 58%, rgba(4, 10, 20, 0.92) 100%);
    pointer-events: none;
}

.th-shot img {
    display: block;
    width: 100%;
    height: 260px;
    object-fit: cover;
    opacity: 0.92;
    filter: saturate(0.92) contrast(1.04);
    transform: scale(1.01);
    transition: transform 0.7s ease, opacity 0.5s ease;
}

.th-shot:hover img {
    opacity: 1;
    transform: scale(1.07);
}

.th-shot figcaption {
    position: absolute;
    left: 22px;
    right: 22px;
    bottom: 20px;
    z-index: 2;
}

.th-shot figcaption strong {
    display: block;
    color: #f0faff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.th-shot figcaption span {
    display: block;
    margin-top: 6px;
    color: rgba(160, 200, 235, 0.86);
    font-size: 12.5px;
    line-height: 1.7;
}

.th-shot-code {
    position: absolute;
    top: 16px;
    left: 20px;
    z-index: 2;
    color: rgba(255, 255, 255, 0.55);
    font-family: Menlo, Consolas, monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
}

/* ========================== 首页：入场动画 ========================== */

.th-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.th-reveal.is-in {
    opacity: 1;
    transform: translateY(0);
}

.th-note {
    margin: 26px 0 0;
    color: rgba(143, 164, 192, 0.85);
    font-size: 12px;
    line-height: 1.9;
    text-align: center;
}

.th-note i {
    margin-right: 6px;
    color: rgba(34, 211, 238, 0.75);
}

.th-note a {
    color: rgba(159, 232, 255, 0.95);
    border-bottom: 1px dashed rgba(34, 211, 238, 0.4);
}

.th-note a:hover,
.th-note a:focus {
    color: #fff;
}

/* ========================== 首页：收尾行动区 ========================== */

.th-cta {
    position: relative;
    padding: 84px 0;
    background:
        radial-gradient(circle at 50% 0%, rgba(34, 211, 238, 0.16) 0%, transparent 55%),
        linear-gradient(180deg, #050a14 0%, #081527 100%);
}

.th-cta-panel {
    position: relative;
    padding: 52px 40px;
    border: 1px solid rgba(34, 211, 238, 0.28);
    border-radius: 22px;
    background: linear-gradient(140deg, rgba(16, 40, 68, 0.9), rgba(6, 16, 30, 0.92));
    box-shadow: var(--tk-shadow);
    text-align: center;
    overflow: hidden;
}

.th-cta-panel::before {
    content: "";
    position: absolute;
    top: -60%;
    left: 50%;
    width: 720px;
    height: 460px;
    margin-left: -360px;
    background: radial-gradient(ellipse, rgba(34, 211, 238, 0.2) 0%, transparent 68%);
    pointer-events: none;
}

.th-cta-panel h2 {
    position: relative;
    margin: 0 0 14px;
    color: #f2f9ff;
    font-size: 30px;
    font-weight: 700;
}

.th-cta-panel p {
    position: relative;
    margin: 0 auto 30px;
    max-width: 560px;
    color: var(--tk-muted);
    font-size: 14px;
    line-height: 1.9;
}

.th-cta-panel .th-actions {
    position: relative;
    justify-content: center;
}

.th-cta-panel .th-actions .th-btn:last-child {
    margin-right: 0;
}

/* ========================== 首页：页脚 ========================== */

.tk-footer {
    position: relative;
    padding: 46px 0 28px;
    border-top: 1px solid rgba(96, 170, 255, 0.14);
    background: #03070f;
    color: rgba(143, 164, 192, 0.85);
}

.tk-footer-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 34px;
}

.tk-footer-brand {
    max-width: 340px;
}

.tk-footer-brand .tk-brand-text {
    display: inline-block;
    color: #eaf6ff;
    font-size: 19px;
    font-weight: 700;
}

.tk-footer-brand p {
    margin: 12px 0 0;
    font-size: 12.5px;
    line-height: 1.9;
}

.tk-footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
}

.tk-footer-links a {
    color: rgba(190, 214, 240, 0.82);
    font-size: 13px;
}

.tk-footer-links a:hover,
.tk-footer-links a:focus {
    color: var(--tk-cyan);
}

.tk-footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(96, 170, 255, 0.1);
    color: rgba(120, 143, 170, 0.9);
    font-size: 12px;
    line-height: 1.9;
}

.tk-footer-bottom a {
    color: rgba(150, 175, 205, 0.92);
}

.tk-footer-bottom a:hover,
.tk-footer-bottom a:focus {
    color: var(--tk-cyan);
}

/* ========================== 会员中心：整体布局 ========================== */

body.tech-page {
    background:
        radial-gradient(circle at 12% 0%, rgba(34, 211, 238, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 92% 12%, rgba(47, 111, 237, 0.16) 0%, transparent 46%),
        linear-gradient(180deg, #050a14 0%, #071426 55%, #050a14 100%);
    background-attachment: fixed;
    color: var(--tk-ink);
}

body.tech-page::before {
    content: "";
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(96, 170, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 170, 255, 0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    pointer-events: none;
}

body.tech-page .navbar-white {
    background: rgba(6, 15, 28, 0.92);
    border-bottom: 1px solid rgba(96, 170, 255, 0.16);
    box-shadow: 0 12px 32px rgba(1, 6, 16, 0.55);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
}

body.tech-page .navbar-white .navbar-brand {
    color: #f2f9ff;
    font-weight: 700;
    letter-spacing: 0.06em;
}

body.tech-page .navbar-white .navbar-nav > li > a {
    color: rgba(214, 232, 250, 0.82);
    background: transparent;
}

body.tech-page .navbar-white .navbar-nav > li > a:hover,
body.tech-page .navbar-white .navbar-nav > li > a:focus,
body.tech-page .navbar-white .navbar-nav > .active > a,
body.tech-page .navbar-white .navbar-nav > .active > a:hover,
body.tech-page .navbar-white .navbar-nav > .active > a:focus,
body.tech-page .navbar-white .navbar-nav > .open > a,
body.tech-page .navbar-white .navbar-nav > .open > a:hover,
body.tech-page .navbar-white .navbar-nav > .open > a:focus {
    color: var(--tk-cyan);
    background: transparent;
}

body.tech-page .navbar-white .navbar-toggle {
    border-color: rgba(96, 170, 255, 0.35);
}

body.tech-page .navbar-white .navbar-toggle .icon-bar {
    background-color: rgba(230, 240, 255, 0.85);
}

body.tech-page .navbar-white .navbar-collapse {
    border-color: rgba(96, 170, 255, 0.16);
}

body.tech-page .dropdown-menu {
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-radius: 12px;
    background: rgba(8, 20, 36, 0.98);
    box-shadow: 0 18px 40px rgba(0, 6, 16, 0.6);
}

body.tech-page .dropdown-menu > li > a {
    color: rgba(214, 232, 250, 0.85);
}

body.tech-page .dropdown-menu > li > a:hover,
body.tech-page .dropdown-menu > li > a:focus {
    color: var(--tk-cyan);
    background: rgba(34, 211, 238, 0.08);
}

body.tech-page .nav li .avatar-img img {
    border: 1px solid rgba(34, 211, 238, 0.6);
    box-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
}

body.tech-page main.content {
    position: relative;
    z-index: 1;
    padding-top: 26px;
    background: transparent;
}

body.tech-page footer.footer {
    margin-top: 34px;
    background: transparent;
    color: rgba(120, 143, 170, 0.9);
}

body.tech-page footer.footer .copyright {
    background: rgba(4, 10, 20, 0.72);
    border-top: 1px solid rgba(96, 170, 255, 0.12);
}

body.tech-page footer.footer .copyright a {
    color: rgba(150, 175, 205, 0.92);
}

body.tech-page footer.footer .copyright a:hover {
    color: var(--tk-cyan);
}

/* 会员中心左侧导航 */

body.tech-page .sidenav {
    padding: 18px 0 14px;
    border: 1px solid rgba(96, 170, 255, 0.16);
    border-radius: var(--tk-radius);
    background: linear-gradient(160deg, rgba(18, 40, 68, 0.8) 0%, rgba(7, 17, 31, 0.86) 100%);
    box-shadow: 0 18px 40px rgba(1, 7, 16, 0.45);
}

body.tech-page .sidenav .list-group {
    margin-bottom: 0;
}

body.tech-page .sidenav .list-group .list-group-heading {
    margin-bottom: 12px;
    color: rgba(34, 211, 238, 0.85);
    font-size: 11.5px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

body.tech-page .sidenav .list-group .list-group-item {
    border-left: 2px solid transparent;
    background: transparent;
}

body.tech-page .sidenav .list-group .list-group-item > a {
    color: rgba(206, 226, 246, 0.82);
    padding: 11px 16px 11px 32px;
    font-size: 14px;
    transition: color 0.3s ease, background 0.3s ease;
}

body.tech-page .sidenav .list-group .list-group-item:hover {
    border-left-color: rgba(34, 211, 238, 0.4);
    background: rgba(34, 211, 238, 0.07);
}

body.tech-page .sidenav .list-group .list-group-item:hover > a {
    color: #eaf8ff;
}

body.tech-page .sidenav .list-group .list-group-item.active {
    border-left-color: var(--tk-cyan);
    background: linear-gradient(90deg, rgba(34, 211, 238, 0.16), rgba(34, 211, 238, 0.02));
}

body.tech-page .sidenav .list-group .list-group-item.active > a {
    color: var(--tk-cyan);
    font-weight: 600;
}

body.tech-page .sidebar-toggle {
    color: #eaf8ff;
    background: rgba(12, 30, 52, 0.95);
    border: 1px solid rgba(96, 170, 255, 0.3);
}

@media (max-width: 991px) {
    body.tech-page .sidenav {
        background: rgba(6, 16, 30, 0.98);
        border-radius: 0;
    }
}

/* ========================== 会员中心：个人横幅 ========================== */

.uc-hero {
    position: relative;
    padding: 30px;
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-radius: 20px;
    background: linear-gradient(125deg, rgba(18, 46, 78, 0.95) 0%, rgba(13, 34, 60, 0.94) 48%, rgba(7, 18, 33, 0.96) 100%);
    box-shadow: var(--tk-shadow);
    overflow: hidden;
}

.uc-hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-position: center;
    background-size: cover;
    opacity: 0.26;
    filter: saturate(0.9) contrast(1.05);
    transition: opacity 0.8s ease;
}

.uc-hero-veil {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background:
        linear-gradient(90deg, rgba(6, 16, 30, 0.95) 0%, rgba(6, 16, 30, 0.72) 52%, rgba(6, 16, 30, 0.55) 100%),
        linear-gradient(180deg, rgba(6, 16, 30, 0.1) 0%, rgba(6, 16, 30, 0.85) 100%);
}

.uc-hero-veil::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-image:
        linear-gradient(rgba(96, 170, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 170, 255, 0.1) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(ellipse at 78% 30%, rgba(0, 0, 0, 0.85) 0%, transparent 72%);
    mask-image: radial-gradient(ellipse at 78% 30%, rgba(0, 0, 0, 0.85) 0%, transparent 72%);
}

.uc-hero-main {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.uc-avatar {
    position: relative;
    display: block;
    flex: 0 0 auto;
    width: 100px;
    height: 100px;
    padding: 3px;
    border-radius: 50%;
    background: conic-gradient(from 200deg, #22d3ee, #2f6fed, #7ff0ff, #22d3ee);
    box-shadow: 0 0 28px rgba(34, 211, 238, 0.45);
}

.uc-avatar img {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #071426;
}

.uc-avatar .uc-avatar-dot {
    position: absolute;
    right: 4px;
    bottom: 8px;
    width: 16px;
    height: 16px;
    border: 3px solid #071426;
    border-radius: 50%;
    background: #37e08c;
    box-shadow: 0 0 12px rgba(55, 224, 140, 0.75);
}

.uc-identity {
    flex: 1 1 260px;
    min-width: 0;
}

.uc-hello {
    display: inline-block;
    margin-bottom: 8px;
    color: rgba(34, 211, 238, 0.9);
    font-size: 11px;
    letter-spacing: 0.26em;
    text-transform: uppercase;
}

.uc-name {
    margin: 0 0 8px;
    color: #f4fbff;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.02em;
    word-break: break-all;
}

.uc-bio {
    max-width: 520px;
    margin: 0;
    color: rgba(178, 200, 226, 0.9);
    font-size: 13px;
    line-height: 1.8;
    word-break: break-word;
}

.uc-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.uc-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border: 1px solid rgba(96, 170, 255, 0.32);
    border-radius: 999px;
    background: rgba(9, 24, 44, 0.7);
    color: rgba(170, 224, 255, 0.92);
    font-size: 11.5px;
    letter-spacing: 0.06em;
}

.uc-badge i {
    margin-right: 6px;
    color: var(--tk-cyan);
}

.uc-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-left: auto;
}

.uc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 13.5px;
    letter-spacing: 0.04em;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease;
}

.uc-btn i {
    margin-right: 7px;
}

.uc-btn:hover,
.uc-btn:focus {
    transform: translateY(-2px);
    text-decoration: none;
}

.uc-btn-light {
    color: #02121f;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 55%, #4f9bff 100%);
    box-shadow: 0 10px 26px rgba(34, 211, 238, 0.32);
}

.uc-btn-light:hover,
.uc-btn-light:focus {
    color: #02121f;
    box-shadow: 0 14px 32px rgba(34, 211, 238, 0.46);
}

.uc-btn-line {
    color: #d6ecff;
    border-color: rgba(96, 170, 255, 0.42);
    background: rgba(10, 26, 46, 0.6);
}

.uc-btn-line:hover,
.uc-btn-line:focus {
    color: #fff;
    border-color: rgba(34, 211, 238, 0.7);
    background: rgba(34, 211, 238, 0.12);
}

/* ========================== 会员中心：数据与面板 ========================== */

.uc-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.uc-stat {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px;
    border: 1px solid rgba(96, 170, 255, 0.16);
    border-radius: 14px;
    background: linear-gradient(160deg, rgba(16, 37, 63, 0.82) 0%, rgba(8, 19, 34, 0.9) 100%);
    box-shadow: 0 14px 30px rgba(1, 7, 16, 0.4);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.uc-stat::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, rgba(34, 211, 238, 0.85), rgba(47, 111, 237, 0.1));
    opacity: 0.55;
}

.uc-stat:hover {
    transform: translateY(-3px);
    border-color: rgba(34, 211, 238, 0.38);
    box-shadow: 0 20px 40px rgba(2, 12, 26, 0.55);
}

.uc-stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(34, 211, 238, 0.35);
    border-radius: 12px;
    background: rgba(34, 211, 238, 0.1);
    color: var(--tk-cyan);
    font-size: 17px;
}

.uc-stat-body {
    min-width: 0;
}

.uc-stat-label {
    display: block;
    color: rgba(143, 164, 192, 0.95);
    font-size: 11.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.uc-stat-value {
    display: block;
    margin-top: 6px;
    color: #f2fbff;
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    word-break: break-all;
}

.uc-stat-value a {
    color: #f2fbff;
}

.uc-stat-value.is-date {
    font-size: 13px;
    font-weight: 500;
    color: rgba(206, 228, 250, 0.95);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.uc-grid {
    margin-top: 20px;
}

.uc-panel {
    position: relative;
    padding: 24px;
    border: 1px solid rgba(96, 170, 255, 0.16);
    border-radius: var(--tk-radius);
    background: linear-gradient(160deg, rgba(15, 35, 60, 0.78) 0%, rgba(7, 17, 31, 0.9) 100%);
    box-shadow: 0 18px 40px rgba(1, 7, 16, 0.42);
    overflow: hidden;
}

.uc-panel + .uc-panel {
    margin-top: 20px;
}

.uc-panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(96, 170, 255, 0.12);
}

.uc-panel-head h3 {
    margin: 0;
    color: #eef9ff;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.uc-panel-head h3 i {
    margin-right: 8px;
    color: var(--tk-cyan);
}

.uc-panel-head span {
    color: rgba(143, 164, 192, 0.75);
    font-family: Menlo, Consolas, monospace;
    font-size: 10.5px;
    letter-spacing: 0.2em;
}

.uc-tiles {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.uc-tile {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 16px;
    border: 1px solid rgba(96, 170, 255, 0.14);
    border-radius: 12px;
    background: rgba(8, 20, 36, 0.62);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.uc-tile:hover,
.uc-tile:focus {
    transform: translateY(-2px);
    border-color: rgba(34, 211, 238, 0.45);
    background: rgba(16, 40, 68, 0.8);
    text-decoration: none;
}

.uc-tile-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(140deg, rgba(34, 211, 238, 0.22), rgba(47, 111, 237, 0.18));
    color: var(--tk-cyan);
    font-size: 15px;
}

.uc-tile-text {
    flex: 1 1 auto;
    min-width: 0;
}

.uc-tile-text strong {
    display: block;
    color: #e8f5ff;
    font-size: 14px;
    font-weight: 600;
}

.uc-tile-text em {
    display: block;
    margin-top: 4px;
    color: rgba(143, 164, 192, 0.9);
    font-size: 11.5px;
    font-style: normal;
    line-height: 1.6;
}

.uc-tile-arrow {
    flex: 0 0 auto;
    color: rgba(143, 164, 192, 0.65);
    font-size: 16px;
    transition: transform 0.3s ease, color 0.3s ease;
}

.uc-tile:hover .uc-tile-arrow,
.uc-tile:focus .uc-tile-arrow {
    color: var(--tk-cyan);
    transform: translateX(4px);
}

/* 账号安全列表 */

.uc-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.uc-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 13px 0;
    border-bottom: 1px dashed rgba(96, 170, 255, 0.12);
    font-size: 13px;
}

.uc-list li:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.uc-list-label {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    color: rgba(143, 164, 192, 0.95);
}

.uc-list-label i {
    width: 18px;
    margin-right: 8px;
    color: rgba(34, 211, 238, 0.8);
    text-align: center;
}

.uc-list-value {
    color: #e2f2ff;
    font-size: 13px;
    text-align: right;
    word-break: break-all;
}

.uc-note {
    margin: 18px 0 0;
    padding: 12px 14px;
    border: 1px dashed rgba(96, 170, 255, 0.24);
    border-radius: 10px;
    background: rgba(34, 211, 238, 0.05);
    color: rgba(160, 186, 214, 0.95);
    font-size: 12px;
    line-height: 1.8;
}

.uc-note i {
    margin-right: 6px;
    color: var(--tk-cyan);
}

/* 工作台模块导览 */

.uc-modules {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.uc-module {
    position: relative;
    display: block;
    padding: 18px;
    border: 1px solid rgba(96, 170, 255, 0.14);
    border-radius: 12px;
    background: rgba(8, 20, 36, 0.62);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.uc-module:hover,
.uc-module:focus {
    transform: translateY(-2px);
    border-color: rgba(34, 211, 238, 0.45);
    background: rgba(16, 40, 68, 0.8);
    text-decoration: none;
}

.uc-module-no {
    display: block;
    margin-bottom: 10px;
    color: rgba(34, 211, 238, 0.8);
    font-family: Menlo, Consolas, monospace;
    font-size: 10.5px;
    letter-spacing: 0.18em;
}

.uc-module strong {
    display: block;
    color: #eaf6ff;
    font-size: 14.5px;
    font-weight: 600;
}

.uc-module em {
    display: block;
    margin-top: 6px;
    color: rgba(143, 164, 192, 0.9);
    font-size: 11.5px;
    font-style: normal;
    line-height: 1.7;
}

/* ========================== 响应式适配 ========================== */

@media (max-width: 1199px) {
    .th-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .th-flow {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .th-flow li:nth-child(2n)::after {
        display: none;
    }

    .uc-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .uc-modules {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 991px) {
    .tk-nav.navbar {
        padding: 10px 0;
        background: rgba(6, 14, 26, 0.94);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);
    }

    .tk-nav .navbar-collapse {
        margin-top: 8px;
        border-top: 1px solid rgba(96, 170, 255, 0.16);
    }

    .tk-nav .navbar-collapse.in,
    .tk-nav .navbar-collapse.collapsing {
        padding: 8px 14px 12px;
        border-radius: 12px;
        background: rgba(6, 14, 26, 0.98);
    }

    .tk-nav .navbar-nav > li > a {
        padding: 10px 4px;
    }

    .tk-nav .navbar-nav > li > a::after {
        left: 4px;
        right: auto;
        width: 34px;
    }

    .th-hero {
        padding: 128px 0 96px;
        min-height: auto;
    }

    .th-gallery {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .th-shot:last-child {
        grid-column: 1 / -1;
    }

    .uc-hero-actions {
        margin-left: 0;
        width: 100%;
    }
}

@media (max-width: 767px) {
    .th-title {
        font-size: 46px;
    }

    .th-title-en {
        display: block;
        margin: 8px 0 0;
        font-size: 13px;
    }

    .th-rotator {
        height: 28px;
        font-size: 15px;
    }

    .th-rotate-item {
        white-space: normal;
    }

    .th-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        margin-top: 36px;
    }

    .th-stat {
        padding: 16px;
    }

    .th-btn {
        min-width: 0;
        width: 100%;
        margin-right: 0;
    }

    .th-section {
        padding: 64px 0;
    }

    .th-h2 {
        font-size: 26px;
    }

    .th-section-head {
        margin-bottom: 32px;
    }

    .th-cards,
    .th-flow,
    .th-gallery {
        grid-template-columns: minmax(0, 1fr);
    }

    .th-flow li::after {
        display: none;
    }

    .th-shot:last-child {
        grid-column: auto;
    }

    .th-shot img {
        height: 220px;
    }

    .th-cta-panel {
        padding: 36px 22px;
    }

    .th-cta-panel h2 {
        font-size: 23px;
    }

    .th-scroll {
        display: none;
    }

    .tk-footer-top {
        display: block;
    }

    .tk-footer-links {
        margin-top: 18px;
        gap: 16px 22px;
    }

    .uc-hero {
        padding: 22px;
    }

    .uc-avatar {
        width: 82px;
        height: 82px;
    }

    .uc-name {
        font-size: 21px;
    }

    .uc-stats,
    .uc-tiles {
        grid-template-columns: minmax(0, 1fr);
    }

    .uc-modules {
        grid-template-columns: minmax(0, 1fr);
    }

    .uc-panel {
        padding: 20px 18px;
    }
}

@media (max-width: 480px) {
    .th-hero {
        padding-top: 116px;
    }

    .th-title {
        font-size: 38px;
    }

    .th-chip {
        font-size: 10.5px;
        letter-spacing: 0.12em;
    }

    .th-stats {
        grid-template-columns: minmax(0, 1fr);
    }
}

/* ========================== 动效降级 ========================== */

/* ========================== 登录 / 注册 ========================== */

body.tech-auth main.content {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 160px);
    padding: 36px 15px 50px;
}

.auth-wrap {
    width: 100%;
}

.auth-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 460px;
    max-width: 1040px;
    margin: 0 auto;
    border: 1px solid rgba(96, 170, 255, 0.2);
    border-radius: 22px;
    background: linear-gradient(150deg, rgba(14, 34, 60, 0.92) 0%, rgba(6, 15, 28, 0.96) 100%);
    box-shadow: 0 32px 80px rgba(0, 6, 16, 0.65);
    overflow: hidden;
}

/* 左侧视觉面板 */

.auth-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 540px;
    padding: 38px;
    background: linear-gradient(150deg, #0b2139 0%, #071426 100%);
    overflow: hidden;
}

.auth-bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-position: center;
    background-size: cover;
    opacity: 0.4;
    filter: saturate(0.9) contrast(1.04);
    transition: opacity 0.8s ease;
}

.auth-veil {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background:
        linear-gradient(180deg, rgba(5, 12, 22, 0.55) 0%, rgba(5, 12, 22, 0.86) 55%, rgba(5, 12, 22, 0.97) 100%),
        linear-gradient(90deg, rgba(5, 12, 22, 0.7) 0%, rgba(5, 12, 22, 0.15) 100%);
}

.auth-mesh {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-image:
        linear-gradient(rgba(96, 170, 255, 0.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 170, 255, 0.12) 1px, transparent 1px);
    background-size: 42px 42px;
    -webkit-mask-image: radial-gradient(ellipse at 30% 25%, rgba(0, 0, 0, 0.9) 0%, transparent 78%);
    mask-image: radial-gradient(ellipse at 30% 25%, rgba(0, 0, 0, 0.9) 0%, transparent 78%);
    pointer-events: none;
}

.auth-visual-inner {
    position: relative;
    z-index: 2;
}

.auth-visual .tk-logo {
    width: 46px;
    height: 46px;
    margin: 0 0 20px;
    font-size: 20px;
}

.auth-visual h2 {
    margin: 0 0 10px;
    color: #f2fbff;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.auth-visual p {
    margin: 0 0 26px;
    color: rgba(176, 204, 232, 0.9);
    font-size: 13.5px;
    line-height: 1.9;
}

.auth-points {
    margin: 0;
    padding: 0;
    list-style: none;
}

.auth-points li {
    display: flex;
    align-items: flex-start;
    padding: 9px 0;
    color: rgba(203, 225, 246, 0.92);
    font-size: 13px;
    line-height: 1.7;
}

.auth-points li i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    margin: 1px 10px 0 0;
    border: 1px solid rgba(34, 211, 238, 0.3);
    border-radius: 50%;
    background: rgba(34, 211, 238, 0.12);
    color: var(--tk-cyan);
    font-size: 11px;
}

.auth-visual-foot {
    position: relative;
    z-index: 2;
    padding-top: 24px;
    color: rgba(122, 152, 184, 0.8);
    font-family: Menlo, Consolas, monospace;
    font-size: 10.5px;
    letter-spacing: 0.22em;
}

/* 右侧表单面板 */

.auth-panel {
    display: flex;
    flex-direction: column;
    padding: 34px 40px 30px;
    border-left: 1px solid rgba(96, 170, 255, 0.14);
    background: linear-gradient(160deg, rgba(9, 22, 40, 0.96) 0%, rgba(6, 15, 28, 0.99) 100%);
}

.auth-panel .logon-tab {
    display: flex;
    gap: 6px;
    margin: 0 0 26px;
    padding: 5px;
    border: 1px solid rgba(96, 170, 255, 0.16);
    border-radius: 999px;
    background: rgba(5, 14, 27, 0.72);
}

.auth-panel .logon-tab > a {
    flex: 1 1 50%;
    float: none;
    width: auto;
    padding: 9px 0;
    border-radius: 999px;
    color: rgba(178, 203, 230, 0.85);
    font-size: 13.5px;
    text-align: center;
    background: transparent;
    transition: color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.auth-panel .logon-tab > a:hover {
    color: #eaf8ff;
    background: rgba(34, 211, 238, 0.08);
}

.auth-panel .logon-tab > a.active {
    color: #02121f;
    font-weight: 600;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 55%, #4f9bff 100%);
    box-shadow: 0 8px 20px rgba(34, 211, 238, 0.28);
}

.auth-head {
    margin: 0 0 22px;
}

.auth-head h1 {
    margin: 0 0 8px;
    color: #f2fbff;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.auth-head p {
    margin: 0;
    color: var(--tk-muted);
    font-size: 12.5px;
    line-height: 1.8;
}

/* 表单控件 */

.auth-panel .form-group {
    margin-bottom: 16px;
}

.auth-panel label.control-label {
    display: block;
    margin-bottom: 8px;
    color: rgba(178, 203, 230, 0.92);
    font-size: 12.5px;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-align: left;
}

.auth-panel .form-control {
    height: 44px;
    padding: 10px 14px;
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-radius: 10px;
    background: rgba(6, 16, 30, 0.75);
    color: #eaf6ff;
    font-size: 14px;
    box-shadow: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.auth-panel .form-control::-webkit-input-placeholder {
    color: rgba(122, 146, 175, 0.8);
}

.auth-panel .form-control::-moz-placeholder {
    color: rgba(122, 146, 175, 0.8);
    opacity: 1;
}

.auth-panel .form-control:-ms-input-placeholder {
    color: rgba(122, 146, 175, 0.8);
}

.auth-panel .form-control:focus {
    border-color: rgba(34, 211, 238, 0.65);
    background: rgba(8, 20, 36, 0.95);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.14);
}

.auth-panel .help-block {
    margin: 7px 0 0;
    color: #ff8f9c;
    font-size: 12px;
}

.auth-panel .checkbox.inline {
    margin: 2px 0 0;
}

.auth-panel .checkbox label {
    padding-left: 22px;
    color: rgba(170, 196, 224, 0.9);
    font-size: 12.5px;
}

.auth-panel .checkbox input[type="checkbox"] {
    margin-top: 3px;
    accent-color: #22d3ee;
}

.auth-panel .btn-forgot {
    display: inline-block;
    padding: 2px 0;
    color: rgba(159, 232, 255, 0.92);
    font-size: 12.5px;
    border-bottom: 1px dashed rgba(34, 211, 238, 0.4);
}

.auth-panel .btn-forgot:hover,
.auth-panel .btn-forgot:focus {
    color: #fff;
    border-bottom-color: rgba(34, 211, 238, 0.8);
}

.auth-panel .btn {
    height: 46px;
    padding: 0 20px;
    border-radius: 999px;
    font-size: 14px;
    line-height: 44px;
    letter-spacing: 0.04em;
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.auth-panel .btn:hover,
.auth-panel .btn:focus {
    transform: translateY(-1px);
}

.auth-panel .btn-primary {
    border: 0;
    color: #02121f;
    font-weight: 600;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 55%, #4f9bff 100%);
    box-shadow: 0 12px 30px rgba(34, 211, 238, 0.32);
}

.auth-panel .btn-primary:hover,
.auth-panel .btn-primary:focus,
.auth-panel .btn-primary:active {
    color: #02121f;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 55%, #4f9bff 100%);
    box-shadow: 0 16px 38px rgba(34, 211, 238, 0.45);
}

.auth-panel .btn-default,
.auth-panel .btn-default.no-border {
    color: rgba(206, 228, 250, 0.92);
    border: 1px solid rgba(96, 170, 255, 0.3);
    background: rgba(10, 26, 46, 0.6);
}

.auth-panel .btn-default:hover,
.auth-panel .btn-default:focus,
.auth-panel .btn-default:active {
    color: #fff;
    border-color: rgba(34, 211, 238, 0.6);
    background: rgba(34, 211, 238, 0.1);
}

.auth-panel .btn-block + .btn-block {
    margin-top: 12px;
}

.auth-panel .mt-3 {
    margin-top: 12px !important;
}

.auth-note {
    margin: 16px 0 0;
    padding: 12px 14px;
    border: 1px dashed rgba(96, 170, 255, 0.22);
    border-radius: 10px;
    background: rgba(34, 211, 238, 0.05);
    color: rgba(160, 186, 214, 0.95);
    font-size: 12px;
    line-height: 1.8;
}

.auth-note i {
    margin-right: 6px;
    color: var(--tk-cyan);
}

.auth-back {
    display: inline-flex;
    align-items: center;
    margin-top: 18px;
    color: rgba(160, 190, 220, 0.85);
    font-size: 12.5px;
}

.auth-back i {
    margin-right: 6px;
    font-size: 14px;
}

.auth-back:hover,
.auth-back:focus {
    color: var(--tk-cyan);
}

/* 验证码输入组 */

.auth-panel .input-group .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.auth-panel .input-group-btn {
    vertical-align: middle;
}

.auth-panel .input-group-btn .btn-captcha {
    height: 44px;
    padding: 0 15px;
    border: 1px solid rgba(34, 211, 238, 0.35);
    border-left: 0;
    border-radius: 0 10px 10px 0;
    background: rgba(34, 211, 238, 0.12);
    color: #9ff3ff;
    font-size: 12.5px;
    line-height: 42px;
    white-space: nowrap;
}

.auth-panel .input-group-btn .btn-captcha:hover,
.auth-panel .input-group-btn .btn-captcha:focus {
    background: rgba(34, 211, 238, 0.22);
    color: #fff;
}

.auth-panel .input-group-btn img {
    display: block;
    height: 44px;
    width: auto;
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-left: 0;
    border-radius: 0 10px 10px 0;
    cursor: pointer;
}

/* 找回密码弹层（Layer）深色适配 */

body.tech-auth .layui-layer {
    border: 1px solid rgba(96, 170, 255, 0.24);
    border-radius: 14px;
    background: #081524;
    box-shadow: 0 26px 70px rgba(0, 6, 16, 0.7);
    overflow: hidden;
}

body.tech-auth .layui-layer-title {
    height: 50px;
    padding: 0 20px;
    border-bottom: 1px solid rgba(96, 170, 255, 0.16);
    border-radius: 14px 14px 0 0;
    background: rgba(12, 30, 52, 0.96);
    color: #eaf6ff;
    font-size: 15px;
    font-weight: 600;
    line-height: 50px;
}

body.tech-auth .layui-layer-setwin {
    top: 17px;
    right: 16px;
}

body.tech-auth .layui-layer-setwin a {
    opacity: 0.85;
    filter: invert(1) brightness(1.6);
}

body.tech-auth .layui-layer-content {
    background: transparent;
    color: #dbeaf7;
}

body.tech-auth .form-layer .form-group {
    margin-left: 0;
    margin-right: 0;
}

body.tech-auth .form-layer label.control-label {
    color: rgba(178, 203, 230, 0.92);
    font-size: 12.5px;
}

body.tech-auth .form-layer .form-control {
    height: 40px;
    padding: 8px 12px;
    border: 1px solid rgba(96, 170, 255, 0.22);
    border-radius: 8px;
    background: rgba(6, 16, 30, 0.85);
    color: #eaf6ff;
    box-shadow: none;
}

body.tech-auth .form-layer .form-control:focus {
    border-color: rgba(34, 211, 238, 0.6);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.12);
}

body.tech-auth .form-layer .radio label {
    color: rgba(190, 214, 240, 0.9);
}

body.tech-auth .form-layer .form-footer {
    border-top: 1px solid rgba(96, 170, 255, 0.16);
    background: rgba(8, 20, 36, 0.96);
}

body.tech-auth .form-layer .btn-primary {
    border: 0;
    border-radius: 999px;
    color: #02121f;
    font-weight: 600;
    background: linear-gradient(120deg, #7ff0ff 0%, #22d3ee 55%, #4f9bff 100%);
}

body.tech-auth .form-layer .btn-captcha {
    height: 40px;
    line-height: 38px;
    border-radius: 0 8px 8px 0;
    border: 1px solid rgba(34, 211, 238, 0.35);
    border-left: 0;
    background: rgba(34, 211, 238, 0.12);
    color: #9ff3ff;
}

body.tech-auth .form-layer .input-group .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

/* 登录 / 注册响应式 */

@media (max-width: 991px) {
    .auth-shell {
        grid-template-columns: minmax(0, 1fr);
        max-width: 520px;
    }

    .auth-visual {
        min-height: 0;
        padding: 24px 26px;
    }

    .auth-visual .tk-logo {
        width: 40px;
        height: 40px;
        margin-bottom: 14px;
        font-size: 17px;
    }

    .auth-visual h2 {
        font-size: 20px;
    }

    .auth-visual p {
        margin-bottom: 0;
        font-size: 12.5px;
    }

    .auth-points,
    .auth-visual-foot {
        display: none;
    }

    .auth-panel {
        padding: 26px 26px 24px;
        border-left: 0;
        border-top: 1px solid rgba(96, 170, 255, 0.14);
    }
}

@media (max-width: 767px) {
    body.tech-auth main.content {
        align-items: flex-start;
        padding: 18px 12px 36px;
    }

    .auth-shell {
        border-radius: 18px;
    }

    .auth-panel {
        padding: 22px 18px 20px;
    }

    .auth-head h1 {
        font-size: 22px;
    }

    .auth-panel .logon-tab {
        margin-bottom: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .th-layer,
    .th-layer img,
    .th-hero-glow,
    .th-chip .th-dot,
    .th-btn-primary::after,
    .th-scroll .th-mouse::after,
    .th-reveal {
        animation: none !important;
        transition: none !important;
    }

    .th-reveal {
        opacity: 1;
        transform: none;
    }
}