/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #FF9ECD;
    --secondary: #A8E6CF;
    --accent: #FFD3B6;
    --text: #4A4A4A;
    --bg: #FFF9F5;
    --white: #FFFFFF;
    --shadow: rgba(255, 158, 205, 0.2);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    overflow-x: hidden;
}

body.welcome-active {
    overflow: hidden;
}

/* 入场动画 */
.welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #FFE8F0 0%, #FFF9F5 50%, #E8F5E9 100%);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: overlayFadeOut 0.8s ease-out 3.5s forwards;
}

@keyframes overlayFadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

.welcome-content {
    text-align: center;
    position: relative;
}

/* 可爱的小狗狗 */
.cute-character {
    margin-bottom: 2rem;
    animation: characterBounce 0.8s ease-out 0.3s;
}

@keyframes characterBounce {
    0% {
        transform: scale(0) translateY(-100px);
        opacity: 0;
    }
    60% {
        transform: scale(1.2) translateY(0);
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.dog-face {
    position: relative;
    display: inline-block;
}

/* 狗耳朵 - 垂下来的 */
.dog-ear {
    position: absolute;
    width: 45px;
    height: 60px;
    background: linear-gradient(135deg, #FFB8A0 0%, #FFA07A 100%);
    border-radius: 50% 50% 50% 50%;
    top: 10px;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.05);
}

.dog-ear::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 40px;
    background: #FFD4C4;
    border-radius: 50%;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
}

.dog-ear-left {
    left: -5px;
    transform: rotate(-30deg);
    animation: earFlap 1.5s ease-in-out 1s infinite;
}

.dog-ear-right {
    right: -5px;
    transform: rotate(30deg);
    animation: earFlap 1.5s ease-in-out 1.2s infinite;
}

@keyframes earFlap {
    0%, 100% { transform: rotate(30deg); }
    50% { transform: rotate(35deg); }
}

/* 狗头 */
.dog-head {
    width: 130px;
    height: 130px;
    background: linear-gradient(135deg, #FFE4D6 0%, #FFD4C4 100%);
    border-radius: 50%;
    position: relative;
    box-shadow: 0 10px 40px rgba(255, 184, 160, 0.4);
    animation: headFloat 2s ease-in-out 1.5s infinite;
}

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

/* 狗眼睛 - 大大的圆眼睛 */
.dog-eye {
    position: absolute;
    width: 20px;
    height: 24px;
    background: #2C2C2C;
    border-radius: 50%;
    top: 35px;
    animation: eyeBlink 3s ease-in-out infinite;
}

@keyframes eyeBlink {
    0%, 96%, 100% { height: 24px; }
    98% { height: 2px; }
}

.dog-eye-left {
    left: 28px;
}

.dog-eye-right {
    right: 28px;
}

.eye-shine {
    position: absolute;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    top: 5px;
    left: 4px;
}

/* 狗鼻子和嘴巴区域 */
.dog-snout {
    position: absolute;
    width: 65px;
    height: 48px;
    background: linear-gradient(135deg, #FFFFFF 0%, #FFF5F0 100%);
    border-radius: 50% 50% 60% 60%;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* 狗鼻子 - 可爱的粉色小鼻子 */
.dog-nose {
    position: absolute;
    width: 16px;
    height: 14px;
    background: linear-gradient(135deg, #FF9ECD 0%, #FF8AB8 100%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 2px 4px rgba(255, 158, 205, 0.4);
}

/* 狗嘴巴 - 可爱的微笑 */
.dog-mouth {
    position: absolute;
    width: 32px;
    height: 16px;
    border: 2.5px solid #FF9ECD;
    border-top: none;
    border-radius: 0 0 32px 32px;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
}

.dog-mouth::before,
.dog-mouth::after {
    content: '';
    position: absolute;
    width: 2.5px;
    height: 7px;
    background: #FF9ECD;
    top: -2.5px;
}

.dog-mouth::before {
    left: 13px;
}

.dog-mouth::after {
    right: 13px;
}

/* 狗腮红 */
.dog-blush {
    position: absolute;
    width: 25px;
    height: 18px;
    background: #FFB8D9;
    border-radius: 50%;
    top: 65px;
    opacity: 0.6;
}

.dog-blush-left {
    left: 5px;
}

.dog-blush-right {
    right: 5px;
}

/* 狗斑点 - 可爱的小斑点 */
.dog-spot {
    position: absolute;
    width: 18px;
    height: 18px;
    background: #FFB8A0;
    border-radius: 50%;
    opacity: 0.5;
}

.dog-spot-left {
    top: 20px;
    left: 15px;
}

.dog-spot-right {
    top: 25px;
    right: 20px;
    width: 14px;
    height: 14px;
}

/* 欢迎文字 */
.welcome-text {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: center;
    gap: 0.3rem;
    align-items: center;
}

.welcome-char {
    display: inline-block;
    opacity: 0;
    animation: charPop 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.welcome-char:nth-child(1) { animation-delay: 1.2s; }
.welcome-char:nth-child(2) { animation-delay: 1.4s; }
.welcome-char:nth-child(3) { animation-delay: 1.6s; }
.welcome-char:nth-child(4) { animation-delay: 1.8s; }
.welcome-char:nth-child(5) { animation-delay: 2.0s; }
.welcome-char:nth-child(6) { animation-delay: 2.2s; }
.welcome-char:nth-child(7) { animation-delay: 2.4s; }
.welcome-char:nth-child(8) { animation-delay: 2.6s; }

@keyframes charPop {
    0% {
        opacity: 0;
        transform: scale(0) rotate(-180deg);
    }
    70% {
        transform: scale(1.2) rotate(10deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(0deg);
    }
}

.welcome-heart {
    font-size: 1.5rem;
    opacity: 0;
    animation: heartBeat 0.6s ease-out 2.8s forwards;
}

@keyframes heartBeat {
    0% {
        opacity: 0;
        transform: scale(0);
    }
    50% {
        transform: scale(1.3);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* 星星特效 */
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.star {
    position: absolute;
    font-size: 2rem;
    opacity: 0;
    animation: starTwinkle 1s ease-out forwards;
}

.star:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 1.5s;
}

.star:nth-child(2) {
    top: 30%;
    right: 20%;
    animation-delay: 1.7s;
}

.star:nth-child(3) {
    bottom: 30%;
    left: 25%;
    animation-delay: 1.9s;
}

.star:nth-child(4) {
    bottom: 25%;
    right: 25%;
    animation-delay: 2.1s;
}

@keyframes starTwinkle {
    0% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% {
        opacity: 1;
        transform: scale(1.5) rotate(180deg);
    }
    100% {
        opacity: 0;
        transform: scale(0.5) rotate(360deg);
    }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px var(--shadow);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    flex: 1;
    justify-content: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* 全局语言切换器 */
.global-lang-switcher {
    display: flex;
    gap: 0.3rem;
    background: var(--bg);
    padding: 0.3rem;
    border-radius: 15px;
}

.global-lang-btn {
    padding: 0.4rem 0.8rem;
    background: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text);
    transition: all 0.3s;
    font-size: 0.85rem;
}

.global-lang-btn.active {
    background: var(--primary);
    color: white;
}

.global-lang-btn:hover:not(.active) {
    background: rgba(255, 158, 205, 0.2);
}

/* 首页 */
.home-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
    background: linear-gradient(135deg, #FFF9F5 0%, #FFE8F0 100%);
}

.home-content {
    text-align: center;
    z-index: 2;
}

.avatar {
    margin-bottom: 2rem;
}

.avatar-circle {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 10px 40px var(--shadow);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.avatar-emoji {
    font-size: 5rem;
}

.greeting {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 1rem;
    color: var(--text);
}

.name {
    color: var(--primary);
    font-weight: 800;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text);
    opacity: 0.8;
    margin-bottom: 2rem;
}

.home-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 5px 20px var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

/* 浮动元素 */
.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}

.float-item {
    position: absolute;
    font-size: 2rem;
    opacity: 0.3;
    animation: floatAround 20s infinite;
}

.float-item:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.float-item:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: 2s;
}

.float-item:nth-child(3) {
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

.float-item:nth-child(4) {
    top: 30%;
    left: 85%;
    animation-delay: 6s;
}

.float-item:nth-child(5) {
    top: 70%;
    left: 70%;
    animation-delay: 8s;
}

@keyframes floatAround {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(20px, -20px) rotate(90deg);
    }
    50% {
        transform: translate(0, -40px) rotate(180deg);
    }
    75% {
        transform: translate(-20px, -20px) rotate(270deg);
    }
}

/* 通用区域样式 */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text);
}

/* 关于我 */
.about-section {
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.about-card {
    background: var(--bg);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px var(--shadow);
}

.card-preview {
    color: var(--text);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.detail-btn {
    padding: 0.6rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 0.5rem;
}

.detail-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow);
}

/* 详情弹窗 */
.detail-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    padding: 1rem;
}

.detail-modal.active {
    display: flex;
}

.detail-container {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.detail-header h2 {
    font-size: 1.8rem;
    color: var(--primary);
    margin: 0;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    background: var(--bg);
    padding: 0.3rem;
    border-radius: 15px;
}

.lang-btn {
    padding: 0.4rem 0.8rem;
    background: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text);
    transition: all 0.3s;
    font-size: 0.9rem;
}

.lang-btn.active {
    background: var(--primary);
    color: white;
}

.lang-btn:hover:not(.active) {
    background: rgba(255, 158, 205, 0.2);
}

.close-detail {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text);
    transition: all 0.3s;
    line-height: 1;
}

.close-detail:hover {
    transform: rotate(90deg);
    color: var(--primary);
}

.detail-content {
    line-height: 1.8;
}

.detail-content p {
    margin-bottom: 1.2rem;
    color: var(--text);
}

.detail-content strong {
    color: var(--primary);
    font-weight: 600;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.about-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.about-card p {
    color: var(--text);
    opacity: 0.8;
}

/* 技能 */
.skills-section {
    background: linear-gradient(135deg, #FFF9F5 0%, #E8F5E9 100%);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-item {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.skill-item:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px var(--shadow);
}

.skill-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.skill-item h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.skill-item.clickable {
    cursor: pointer;
    position: relative;
}

.skill-item.clickable:hover {
    transform: scale(1.08);
    box-shadow: 0 15px 40px var(--shadow);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.tag {
    padding: 0.4rem 1rem;
    background: var(--primary);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 项目 */
.projects-section {
    background: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg);
    padding: 2rem;
    border-radius: 20px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary);
    box-shadow: 0 10px 30px rgba(168, 230, 207, 0.3);
}

.project-emoji {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text);
}

.project-card p {
    color: var(--text);
    opacity: 0.8;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-small {
    padding: 0.3rem 0.8rem;
    background: var(--secondary);
    color: white;
    border-radius: 15px;
    font-size: 0.8rem;
}

.play-game-btn {
    margin-top: 1rem;
    padding: 0.6rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 20px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.play-game-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow);
}

/* 游戏弹窗 */
.game-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.game-modal.active {
    display: flex;
}

.game-container {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    position: relative;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.game-header h2 {
    font-size: 1.8rem;
    color: var(--primary);
}

.close-game {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text);
    transition: all 0.3s;
}

.close-game:hover {
    transform: rotate(90deg);
    color: var(--primary);
}

.game-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.score,
.time,
.pairs {
    color: var(--primary);
}

.game-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    min-height: 300px;
}

/* 卡片样式 */
.card {
    aspect-ratio: 1;
    cursor: pointer;
    perspective: 1000px;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.card.flipped .card-inner {
    transform: rotateY(180deg);
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    font-size: 2.5rem;
    font-weight: bold;
}

.card-front {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.card-back {
    background: linear-gradient(135deg, #FFE8F0 0%, #E8F5E9 100%);
    transform: rotateY(180deg);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.card.matched .card-inner {
    transform: rotateY(180deg) scale(0.9);
    opacity: 0.6;
}

.card.matched .card-back {
    animation: matchPulse 0.5s ease-out;
}

@keyframes matchPulse {
    0%, 100% {
        transform: rotateY(180deg) scale(1);
    }
    50% {
        transform: rotateY(180deg) scale(1.2);
    }
}

.card:hover:not(.flipped):not(.matched) .card-inner {
    transform: scale(1.05);
}

.hole {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #8B4513 0%, #654321 100%);
    border-radius: 50%;
    position: relative;
    cursor: pointer;
    box-shadow: inset 0 5px 15px rgba(0, 0, 0, 0.3);
}

.mole {
    position: absolute;
    bottom: -100%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 3rem;
    transition: bottom 0.3s;
    user-select: none;
}

.hole.active .mole {
    bottom: 10%;
    animation: moleWiggle 0.5s ease-in-out infinite;
}

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

.start-game-btn,
.restart-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.start-game-btn:hover,
.restart-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px var(--shadow);
}

.game-over {
    display: none;
    text-align: center;
}

.game-over.active {
    display: block;
}

.game-over h3 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.game-over p {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--text);
}

.rating {
    font-size: 1.5rem !important;
    font-weight: 600;
    color: var(--primary);
    margin: 1rem 0 !important;
}

/* 联系 */
.contact-section {
    background: linear-gradient(135deg, #FFE8F0 0%, #E8F5E9 100%);
    text-align: center;
}

.contact-text {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.contact-links {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: white;
    border-radius: 20px;
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow);
}

.contact-icon {
    font-size: 2rem;
}

/* 页脚 */
.footer {
    background: var(--text);
    color: white;
    text-align: center;
    padding: 2rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .global-lang-switcher {
        order: 2;
    }
    
    section {
        padding: 3rem 0;
    }
    
    .about-content,
    .skills-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
}