/* ============================================
   TwinKite 工作室网站样式表
   现代设计 / 响应式 / 暗色亮色主题 / 动态效果
   ============================================ */

/* ====== CSS 变量 ====== */
:root {
    /* 亮色主题 */
    --bg: #ffffff;
    --bg-alt: #f5f7fa;
    --bg-card: #ffffff;
    --bg-card-2: #fafbfc;
    --text: #1a1a2e;
    --text-secondary: #555;
    --text-muted: #888;
    --border: #e8e8e8;
    --border-light: #f0f0f5;
    --primary: #6c5ce7;
    --primary-light: #a29bfe;
    --primary-dark: #5a4bd1;
    --primary-soft: rgba(108, 92, 231, 0.08);
    --accent: #00cec9;
    --accent-2: #fd79a8;
    --gradient: linear-gradient(135deg, #6c5ce7, #00cec9);
    --gradient-text: linear-gradient(135deg, #6c5ce7, #00cec9);
    --gradient-soft: linear-gradient(135deg, rgba(108, 92, 231, 0.05), rgba(0, 206, 201, 0.05));
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --shadow-glow: 0 8px 40px rgba(108, 92, 231, 0.15);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height: 70px;
    --max-width: 1140px;
}

[data-theme="dark"] {
    --bg: #0f0f1a;
    --bg-alt: #16162a;
    --bg-card: #1a1a2e;
    --bg-card-2: #1f1f35;
    --text: #e8e8f0;
    --text-secondary: #b0b0c0;
    --text-muted: #707080;
    --border: #2a2a3e;
    --border-light: #232338;
    --primary: #a29bfe;
    --primary-light: #6c5ce7;
    --primary-dark: #b4abff;
    --primary-soft: rgba(162, 155, 254, 0.12);
    --accent: #00cec9;
    --accent-2: #fd79a8;
    --gradient: linear-gradient(135deg, #a29bfe, #00cec9);
    --gradient-text: linear-gradient(135deg, #a29bfe, #00cec9);
    --gradient-soft: linear-gradient(135deg, rgba(162, 155, 254, 0.08), rgba(0, 206, 201, 0.08));
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --shadow-glow: 0 8px 40px rgba(162, 155, 254, 0.25);
}

/* ====== Reset ====== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

::selection {
    background: var(--primary);
    color: #fff;
}

/* ====== 渐变文字 ====== */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: gradient-shift 6s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ====== 按钮 ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
    background-size: 200% auto;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.45);
    background-position: right center;
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 2px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
    background: var(--primary-soft);
}

.btn-full { width: 100%; }

/* ====== 导航栏 ====== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: all var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    background: rgba(255,255,255,0.85);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(15,15,26,0.85);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 22px;
    font-family: 'Space Grotesk', sans-serif;
}

.logo-mark {
    font-size: 24px;
    display: inline-block;
    animation: kite-sway 3s ease-in-out infinite;
    transform-origin: bottom center;
}

@keyframes kite-sway {
    0%, 100% { transform: rotate(-5deg); }
    50% { transform: rotate(5deg); }
}

.logo-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    gap: 4px;
    list-style: none;
}

.nav-link {
    padding: 8px 14px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
}

.nav-link:hover { color: var(--primary); }
.nav-link.active {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.theme-toggle:hover {
    background: var(--bg-alt);
    color: var(--primary);
    transform: rotate(20deg);
}

/* 后台登录图标 */
.nav-login {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    color: var(--text-secondary);
    transition: all var(--transition);
    background: none;
    border: 1px solid var(--border);
    cursor: pointer;
}

.nav-login:hover {
    background: var(--primary-soft);
    color: var(--primary);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 92, 231, 0.2);
}

.icon-sun { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
}

.nav-hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.active span:nth-child(2) { opacity: 0; }
.nav-hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ====== Hero ====== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--nav-height);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.18;
    animation: float 20s ease-in-out infinite;
}

.blob-1 { width: 500px; height: 500px; background: #6c5ce7; top: -100px; left: -100px; }
.blob-2 { width: 400px; height: 400px; background: #00cec9; bottom: -50px; right: -50px; animation-delay: -5s; }
.blob-3 { width: 300px; height: 300px; background: #a29bfe; top: 40%; left: 50%; animation-delay: -10s; }

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -30px) scale(1.05); }
    66% { transform: translate(-30px, 40px) scale(0.95); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

[data-theme="dark"] .hero-grid { opacity: 0.15; }

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 760px;
    padding: 0 24px;
    position: relative;
}

.hero-greeting {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-family: 'JetBrains Mono', monospace;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border: 1px solid var(--border);
    border-radius: 100px;
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
}

.kite-float {
    display: inline-block;
    animation: kite-sway 2.5s ease-in-out infinite;
    transform-origin: bottom center;
}

.hero-name {
    font-size: clamp(34px, 5.5vw, 60px);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -1.5px;
}

.hero-tagline {
    font-size: clamp(17px, 2.5vw, 22px);
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 22px;
    min-height: 1.6em;
}

.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    animation: bounce 2s infinite;
    z-index: 1;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ====== 通用 Section ====== */
.section {
    padding: 110px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-alt);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 12px;
    padding: 4px 12px;
    background: var(--primary-soft);
    border-radius: 100px;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(30px, 4.5vw, 44px);
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   工作室介绍板块（大量动态效果）
   ============================================ */
.section-studio {
    background: var(--bg);
    overflow: hidden;
    position: relative;
    isolation: isolate;
}

/* 工作室背景动态元素 */
.studio-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.studio-particle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.15;
    animation: studio-float 18s ease-in-out infinite;
}

.p-1 { width: 400px; height: 400px; background: #6c5ce7; top: 10%; left: -5%; animation-delay: 0s; }
.p-2 { width: 350px; height: 350px; background: #00cec9; top: 60%; right: -8%; animation-delay: -4s; }
.p-3 { width: 300px; height: 300px; background: #fd79a8; bottom: 5%; left: 30%; animation-delay: -8s; }
.p-4 { width: 250px; height: 250px; background: #a29bfe; top: 20%; right: 15%; animation-delay: -12s; }
.p-5 { width: 200px; height: 200px; background: #fdcb6e; top: 75%; left: 5%; animation-delay: -2s; }

[data-theme="dark"] .studio-particle { opacity: 0.12; }

@keyframes studio-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(60px, -40px) scale(1.1); }
    50% { transform: translate(-40px, 50px) scale(0.95); }
    75% { transform: translate(30px, 30px) scale(1.05); }
}

.studio-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    height: 1px;
    opacity: 0.3;
    animation: line-move 8s linear infinite;
}

.l-1 { width: 400px; top: 20%; left: -200px; animation-delay: 0s; }
.l-2 { width: 500px; top: 70%; right: -200px; animation-delay: -4s; }

@keyframes line-move {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(100vw + 200px)); }
}

.studio-orb {
    position: absolute;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 30px var(--primary);
    animation: orb-orbit 15s linear infinite;
}

.o-1 { top: 30%; left: 20%; animation-delay: 0s; }
.o-2 { top: 60%; right: 25%; animation-delay: -7s; background: var(--accent); box-shadow: 0 0 30px var(--accent); }

@keyframes orb-orbit {
    0% { transform: translate(0, 0); }
    25% { transform: translate(100px, -50px); }
    50% { transform: translate(50px, 100px); }
    75% { transform: translate(-80px, 30px); }
    100% { transform: translate(0, 0); }
}

/* 工作室主视觉（标志 + 简介） */
.studio-hero {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 80px;
    align-items: center;
    margin-bottom: 100px;
}

.studio-mark {
    text-align: center;
    position: relative;
}

.studio-mark-circle {
    width: 240px;
    height: 240px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(108, 92, 231, 0.35);
    animation: mark-pulse 4s ease-in-out infinite;
}

@keyframes mark-pulse {
    0%, 100% { box-shadow: 0 20px 60px rgba(108, 92, 231, 0.35); }
    50% { box-shadow: 0 20px 80px rgba(108, 92, 231, 0.6), 0 0 0 20px rgba(108, 92, 231, 0.05); }
}

.kite-icon {
    font-size: 100px;
    line-height: 1;
    animation: kite-sway 2.5s ease-in-out infinite;
    transform-origin: bottom center;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.2));
}

.orbit-ring {
    position: absolute;
    border: 1px dashed rgba(255,255,255,0.4);
    border-radius: 50%;
    animation: orbit-spin 20s linear infinite;
}

.r1 {
    width: 280px;
    height: 280px;
    top: 50%;
    left: 50%;
    margin-top: -140px;
    margin-left: -140px;
}

.r2 {
    width: 320px;
    height: 320px;
    top: 50%;
    left: 50%;
    margin-top: -160px;
    margin-left: -160px;
    border-style: dotted;
    animation-direction: reverse;
    animation-duration: 30s;
}

@keyframes orbit-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.orbit-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 10px #fff;
    top: 50%;
    left: 50%;
    margin-top: -4px;
    margin-left: -4px;
}

.d1 { animation: dot-orbit-1 8s linear infinite; }
.d2 { animation: dot-orbit-2 12s linear infinite; }
.d3 { animation: dot-orbit-3 10s linear infinite; }

@keyframes dot-orbit-1 {
    from { transform: rotate(0deg) translateX(140px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(140px) rotate(-360deg); }
}

@keyframes dot-orbit-2 {
    from { transform: rotate(0deg) translateX(160px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(160px) rotate(-360deg); }
}

@keyframes dot-orbit-3 {
    from { transform: rotate(0deg) translateX(150px) rotate(0deg); }
    to { transform: rotate(-360deg) translateX(150px) rotate(360deg); }
}

.mark-name {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.mark-sub {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.studio-intro p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.9;
}

.studio-lead {
    font-size: 22px !important;
    color: var(--text) !important;
    font-weight: 500;
    margin-bottom: 20px !important;
}

.studio-lead em {
    color: var(--primary);
    font-style: normal;
    font-weight: 700;
}

/* 工作室核心能力卡片 */
.studio-pillars {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 100px;
}

.pillar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    transition-delay: var(--delay, 0s);
}

.pillar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.pillar:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-light);
}

.pillar:hover::before {
    transform: scaleX(1);
}

.pillar-icon {
    margin-bottom: 20px;
}

.icon-box {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--primary-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    position: relative;
}

.pillar:hover .icon-box {
    background: var(--gradient);
    color: #fff;
    transform: rotate(-8deg) scale(1.1);
}

.pillar h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.pillar p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.pillar-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.pillar-tags span {
    padding: 3px 10px;
    background: var(--bg-alt);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

/* 工作室数据看板 */
.studio-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 0;
    margin-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.studio-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(108, 92, 231, 0.05), transparent);
    animation: stats-shine 6s linear infinite;
}

@keyframes stats-shine {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(50%); }
}

.stat-block {
    text-align: center;
    position: relative;
    z-index: 1;
    transition-delay: var(--delay, 0s);
}

.stat-block:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--border);
}

.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 48px;
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    display: inline-block;
}

.stat-suffix {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 28px;
    font-weight: 600;
    color: var(--primary);
    margin-left: 2px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* 工作室工作流程 */
.studio-flow {
    margin-top: 40px;
}

.flow-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 50px;
    color: var(--text);
}

.flow-track {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0;
    position: relative;
}

.flow-step {
    flex: 1;
    text-align: center;
    position: relative;
    transition-delay: var(--delay, 0s);
}

.flow-num {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'JetBrains Mono', monospace;
    font-size: 18px;
    font-weight: 700;
    position: relative;
    z-index: 2;
    transition: all 0.4s ease;
}

.flow-step:hover .flow-num {
    background: var(--gradient);
    color: #fff;
    transform: scale(1.15) rotate(360deg);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
}

.flow-body h4 {
    font-size: 18px;
    margin-bottom: 6px;
}

.flow-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 180px;
    margin: 0 auto;
}

.flow-line {
    flex: 0 0 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    position: relative;
    overflow: hidden;
}

.flow-line::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: rgba(255, 255, 255, 0.6);
    animation: flow-line 2s linear infinite;
}

@keyframes flow-line {
    0% { left: -50%; }
    100% { left: 100%; }
}

/* ============================================
   关于我（个人板块 + 证件照）
   ============================================ */
.me-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 80px;
    align-items: start;
}

.me-photo {
    position: sticky;
    top: calc(var(--nav-height) + 30px);
    position: relative;
}

.photo-frame {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.photo-frame:hover {
    transform: translateY(-8px) rotate(-1deg);
}

.me-img {
    width: 100%;
    height: auto;             /* 按图片原始比例展示 */
    max-width: 380px;         /* 限制最大宽度 */
    object-fit: contain;      /* 完整显示，不裁剪 */
    object-position: center center;
    display: block;
    margin: 0 auto;
    transition: transform 0.6s ease;
}

.photo-frame:hover .me-img {
    transform: scale(1.05);
}

.photo-glow {
    position: absolute;
    inset: -2px;
    border-radius: var(--radius-lg);
    background: var(--gradient);
    z-index: -1;
    opacity: 0;
    filter: blur(20px);
    transition: opacity 0.5s ease;
}

.photo-frame:hover .photo-glow {
    opacity: 0.5;
}

.photo-tag {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 13px;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 8px;
}

.photo-tag-top {
    bottom: auto;
    top: 20px;
}

.tag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #00cec9;
    box-shadow: 0 0 10px #00cec9;
    animation: tag-pulse 1.5s ease-in-out infinite;
}

@keyframes tag-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.photo-decoration {
    position: absolute;
    border-radius: 50%;
    z-index: -1;
}

.photo-decoration.d1 {
    width: 80px;
    height: 80px;
    background: var(--primary);
    top: -20px;
    right: -20px;
    opacity: 0.2;
    filter: blur(20px);
    animation: deco-float 6s ease-in-out infinite;
}

.photo-decoration.d2 {
    width: 60px;
    height: 60px;
    background: var(--accent);
    bottom: -15px;
    left: -15px;
    opacity: 0.25;
    filter: blur(15px);
    animation: deco-float 8s ease-in-out infinite reverse;
}

.photo-decoration.d3 {
    width: 50px;
    height: 50px;
    background: var(--accent-2);
    top: 40%;
    right: -25px;
    opacity: 0.2;
    filter: blur(18px);
    animation: deco-float 7s ease-in-out infinite;
    animation-delay: -3s;
}

@keyframes deco-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(15px, -20px) scale(1.2); }
}

.me-info {
    padding-top: 12px;
}

.me-name {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -1px;
}

.me-en {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 12px;
    letter-spacing: 1px;
}

.me-title {
    font-size: 16px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px dashed var(--border);
}

.me-bio p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.9;
}

.me-bio strong {
    color: var(--text);
    font-weight: 600;
}

.me-tags {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.me-tag {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.me-tag:hover {
    background: var(--primary-soft);
    border-color: var(--primary-light);
    transform: translateX(4px);
}

.me-tag-icon {
    font-size: 24px;
    line-height: 1;
}

.me-tag strong {
    display: block;
    font-size: 15px;
    color: var(--text);
    margin-bottom: 2px;
}

.me-tag span {
    font-size: 13px;
    color: var(--text-muted);
}

/* ====== 技能 ====== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    transition: all var(--transition);
}

.skill-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.skill-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.skill-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.skill-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tags span {
    padding: 4px 12px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.skill-tags span:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ====== 作品集 ====== */
.project-filters {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 24px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.project-thumb {
    height: 200px;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    position: relative;
    overflow: hidden;
}

.project-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.1), rgba(0,0,0,0.3));
}

.project-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-category {
    font-size: 12px;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.project-body h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.project-body p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.project-tech span {
    padding: 3px 10px;
    background: var(--bg-alt);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.project-links {
    display: flex;
    gap: 12px;
}

.project-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition);
}

.project-links a:hover { gap: 8px; }

/* ====== 博客 ====== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all var(--transition);
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.blog-date {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-tag {
    padding: 2px 10px;
    background: var(--primary-soft);
    color: var(--primary);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.blog-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.4;
    transition: color var(--transition);
}

.blog-card:hover h3 { color: var(--primary); }

.blog-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.blog-read {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition);
}

.blog-card:hover .blog-read { gap: 8px; }

.blog-more {
    text-align: center;
    margin-top: 48px;
}

/* ====== 联系 ====== */
.contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 16px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 15px;
}

.contact-item svg {
    color: var(--primary);
    flex-shrink: 0;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-alt);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--text);
    font-family: inherit;
    transition: all var(--transition);
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
}

.form-success {
    display: none;
    color: #00b894;
    font-size: 14px;
    margin-top: 16px;
    text-align: center;
}

.form-success.show { display: block; }

/* ====== 页脚 ====== */
.footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    padding: 60px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-mark {
    font-size: 24px;
    animation: kite-sway 3s ease-in-out infinite;
    transform-origin: bottom center;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 0;
    margin-left: 34px;
    position: relative;
    top: -28px;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 15px;
    transition: color var(--transition);
}

.footer-links a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 14px;
}

/* ====== 回到顶部 ====== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* ====== 滚动动画 ====== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--delay, 0s);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ====== 响应式 ====== */
@media (max-width: 1024px) {
    .studio-pillars {
        grid-template-columns: repeat(2, 1fr);
    }
    .studio-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    .stat-block:not(:last-child)::after { display: none; }
    .flow-track { flex-wrap: wrap; gap: 20px; }
    .flow-line { display: none; }
    .flow-step { flex: 0 0 calc(50% - 10px); }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: transform var(--transition);
    }
    .nav-menu.active { transform: translateY(0); }
    .nav-hamburger { display: flex; }

    .studio-hero {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .me-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .me-photo { position: static; max-width: 320px; margin: 0 auto; }
    .me-tags { grid-template-columns: 1fr; }
    .me-name { font-size: 28px; }
    .me-en { display: block; margin-left: 0; margin-top: 4px; }

    .studio-pillars { grid-template-columns: 1fr; }
    .studio-stats { grid-template-columns: 1fr 1fr; }
    .flow-step { flex: 0 0 100%; }

    .about-grid,
    .contact-wrap { grid-template-columns: 1fr; gap: 32px; }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    .footer-brand { flex-direction: column; gap: 6px; }
    .footer-brand p { margin-left: 0; top: 0; }

    .section { padding: 80px 0; }
    .section-header { margin-bottom: 50px; }

    .projects-grid,
    .blog-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; }
    .studio-stats { grid-template-columns: 1fr; }
    .stat-value { font-size: 36px; }
    .studio-mark-circle { width: 200px; height: 200px; }
    .kite-icon { font-size: 80px; }
    .r1 { width: 240px; height: 240px; margin-top: -120px; margin-left: -120px; }
    .r2 { width: 280px; height: 280px; margin-top: -140px; margin-left: -140px; }
}