/* ===== 导航栏样式 ===== */
.navigation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 1.5rem 0;
}

.navigation.scrolled {
    background: rgba(10, 14, 19, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.brand-text {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--gold-primary);
    letter-spacing: 0.3em;
    line-height: 1;
}

.brand-tagline {
    font-size: 0.65rem;
    color: var(--mist-gray);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.nav-menu-wrapper {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-menu a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--mist-light);
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    transition: all 0.4s ease;
    padding: 0.5rem 0;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--gold-primary);
    transition: width 0.4s ease;
}

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

.nav-menu a:hover::before,
.nav-menu a.active::before {
    width: 100%;
}

.nav-indicator {
    width: 4px;
    height: 4px;
    background: var(--gold-primary);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all 0.4s ease;
}

.nav-menu a:hover .nav-indicator,
.nav-menu a.active .nav-indicator {
    opacity: 1;
    transform: scale(1);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--gold-primary);
    transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.badge-line {
    width: 40px;
    height: 1px;
    background: var(--gold-primary);
}

.badge-text {
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--mist-gray);
    text-transform: uppercase;
}

.hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 300;
    line-height: 1.1;
    margin-bottom: 2rem;
    color: var(--mist-light);
}

.title-line {
    display: block;
}

.title-highlight {
    color: var(--gold-primary);
    position: relative;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: -0.1em;
    left: 0;
    width: 100%;
    height: 0.05em;
    background: var(--gold-primary);
    opacity: 0.3;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--mist-gray);
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.2rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-decoration: none;
    border: 1px solid var(--gold-primary);
    background: transparent;
    color: var(--gold-primary);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gold-primary);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--ink-black);
}

.btn-primary {
    background: var(--gold-primary);
    color: var(--ink-black);
}

.btn-primary:hover {
    background: var(--gold-light);
    border-color: var(--gold-light);
}

.btn-secondary::before {
    background: transparent;
}

.btn-secondary:hover {
    background: rgba(212, 175, 55, 0.1);
}

.btn-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
    transform: translateY(3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.scroll-text {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--mist-gray);
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--gold-primary), transparent);
    animation: scrollFlow 2s ease-in-out infinite;
}

@keyframes scrollFlow {
    0%, 100% {
        transform: scaleY(0);
        transform-origin: top;
    }
    50% {
        transform: scaleY(1);
        transform-origin: top;
    }
    51% {
        transform: scaleY(1);
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

.hero-visual {
    position: absolute;
    right: -10%;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.zen-circle {
    width: 600px;
    height: 600px;
    position: relative;
    opacity: 0.15;
}

.enso-svg {
    width: 100%;
    height: 100%;
    color: var(--gold-primary);
}

.enso-path {
    animation: drawCircle 3s ease-out forwards;
    animation-delay: 1s;
}

@keyframes drawCircle {
    to {
        stroke-dashoffset: 0;
    }
}

/* ===== 关于区域 ===== */
.about {
    padding: 10rem 2rem;
    position: relative;
}

.about-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 0.3em;
    color: var(--gold-primary);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.about-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--mist-light);
}

.about-text {
    color: var(--mist-gray);
    line-height: 2;
    margin-bottom: 3rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.about-features {
    display: grid;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.feature-number {
    font-family: 'Cormorant Garamond', serif;
    font-size: 3rem;
    font-weight: 300;
    color: var(--gold-primary);
    line-height: 1;
    min-width: 60px;
}

.feature-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--mist-light);
}

.feature-content p {
    color: var(--mist-gray);
    font-size: 0.95rem;
}

.about-visual {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zen-art {
    position: relative;
    width: 100%;
    height: 100%;
}

.art-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--gold-primary);
    opacity: 0.2;
    animation: float 8s ease-in-out infinite;
}

.art-circle-1 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.art-circle-2 {
    width: 300px;
    height: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -2s;
}

.art-circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -4s;
}

@keyframes float {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.2;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
        opacity: 0.3;
    }
}

/* ===== 服务区域 ===== */
.services {
    padding: 10rem 2rem;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 6rem;
}

.section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    color: var(--mist-light);
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--mist-gray);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
}

.services-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    position: relative;
    padding: 3rem 2.5rem;
    background: rgba(20, 26, 31, 0.5);
    border: 1px solid rgba(212, 175, 55, 0.1);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0;
    transform: translateY(40px);
}

.animate-on-scroll.service-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    border-color: var(--gold-primary);
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.service-icon {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.icon-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--gold-primary);
    position: relative;
    z-index: 2;
}

.service-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--mist-light);
}

.service-description {
    color: var(--mist-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.service-flow {
    position: relative;
    height: 1px;
    overflow: hidden;
}

.flow-line {
    display: block;
    width: 0;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--gold-primary), transparent);
    transition: width 0.6s ease;
}

.service-card:hover .flow-line {
    width: 100%;
}

/* ===== 理念区域 ===== */
.philosophy {
    padding: 10rem 2rem;
    position: relative;
}

.philosophy-list {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.philosophy-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.philosophy-item.in-view {
    opacity: 1;
    transform: translateY(0);
}

.philosophy-number {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.number-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    transition: all 0.4s ease;
}

.philosophy-item:hover .number-bg {
    border-color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.05);
}

.number-text {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2.5rem;
    font-weight: 300;
    color: var(--gold-primary);
    position: relative;
    z-index: 2;
}

.philosophy-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--mist-light);
}

.philosophy-text {
    color: var(--mist-gray);
    line-height: 2;
    font-size: 1.05rem;
}

/* ===== 联系区域 ===== */
.contact {
    padding: 10rem 2rem;
    position: relative;
}

.contact-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.contact-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--mist-light);
}

.contact-subtitle {
    color: var(--mist-gray);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    color: var(--gold-primary);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-text {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.contact-label {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--mist-gray);
    text-transform: uppercase;
}

.contact-value {
    font-size: 1.1rem;
    color: var(--mist-light);
}

.contact-value a {
    color: var(--gold-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-value a:hover {
    color: var(--gold-light);
}

.message-card {
    padding: 4rem;
    background: rgba(20, 26, 31, 0.8);
    border: 1px solid rgba(212, 175, 55, 0.15);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.message-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    color: var(--gold-primary);
    opacity: 0.5;
}

.message-card h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 1rem;
    color: var(--mist-light);
    line-height: 1.4;
}

.message-card p {
    color: var(--mist-gray);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.btn-gold {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.2rem 2.5rem;
    background: var(--gold-primary);
    color: var(--ink-black);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.15em;
    transition: all 0.4s ease;
}

.btn-gold:hover {
    background: var(--gold-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.btn-gold svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.btn-gold:hover svg {
    transform: translateX(5px);
}

/* ===== 页脚 ===== */
.footer {
    padding: 4rem 2rem 2rem;
    background: rgba(10, 14, 19, 0.95);
    border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--gold-primary);
    margin-bottom: 0.5rem;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--mist-gray);
    letter-spacing: 0.1em;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-links a {
    color: var(--mist-gray);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--mist-gray);
    margin-bottom: 0.3rem;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .about-visual {
        height: 400px;
    }

    .zen-circle {
        width: 400px;
        height: 400px;
    }
}

@media (max-width: 768px) {
    .nav-menu-wrapper {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: rgba(10, 14, 19, 0.98);
        backdrop-filter: blur(20px);
        display: flex;
        align-items: center;
        justify-content: center;
        transform: translateX(100%);
        transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .navigation.mobile-open .nav-menu-wrapper {
        transform: translateX(0);
    }

    .nav-menu {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .nav-menu a {
        font-size: 1.5rem;
    }

    .mobile-toggle {
        display: flex;
        z-index: 1001;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero-visual {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .philosophy-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .philosophy-number {
        margin: 0 auto;
    }

    .message-card {
        padding: 3rem 2rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 1.5rem;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .section-title,
    .about-title,
    .contact-title {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }

    .brand-text {
        font-size: 1.5rem;
    }
}

/* ===== 辅助类 ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.main-content {
    padding-top: 80px;
}

.observer-trigger {
    height: 1px;
}