/* 基础样式重置与通用设置 */
:root {
    --primary-color: #111111;
    --secondary-color: #8c7448;
    --accent-color: #1f2f46;
    --light-bg: #f5f2ec;
    --medium-bg: #ebe6de;
    --dark-bg: #d8d2c8;
    --light-text: #1c1c1c;
    --medium-text: #5f5a52;
    --dark-text: #0f0f10;
    --gold-accent: #8c7448;
    --white: #ffffff;
    --border-color: rgba(17, 17, 17, 0.1);
    --card-bg: rgba(255, 255, 255, 0.98);
    --font-primary: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Source Han Sans SC', 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Songti SC', 'STSong', 'SimSun', 'Noto Serif SC', 'Source Han Serif SC', serif;
    --shadow-soft: 0 18px 50px rgba(17, 17, 17, 0.05);
    --shadow-card: 0 12px 30px rgba(17, 17, 17, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background: var(--light-bg);
    color: var(--light-text);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    line-height: 1.75;
    letter-spacing: 0.01em;
    -webkit-text-size-adjust: 100%;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(245, 242, 236, 0.95));
    z-index: -2;
    pointer-events: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

main {
    padding-top: 96px;
    min-height: calc(100vh - 70px);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease, opacity 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 28px;
    border-radius: 999px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.82rem;
    transition: all 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--dark-text);
    border-color: var(--dark-text);
    color: var(--white);
    box-shadow: none;
}

.btn-primary:hover {
    background: #262626;
    border-color: #262626;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--dark-text);
    border-color: rgba(17, 17, 17, 0.2);
}

.btn-secondary:hover {
    background: rgba(17, 17, 17, 0.04);
    border-color: rgba(17, 17, 17, 0.32);
    transform: translateY(-1px);
}

.particle-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.18;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    z-index: 1000;
    padding: 18px 0;
    box-shadow: 0 1px 0 rgba(17, 17, 17, 0.06);
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 12px;
}

.logo span {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark-text);
    letter-spacing: 0.05em;
}

nav ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 28px;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    position: relative;
    padding: 6px 0;
    font-size: 0.96rem;
    font-weight: 500;
    color: var(--medium-text);
}

nav ul li a::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gold-accent);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.25s ease;
}

nav ul li a:hover::before,
nav ul li a.active::before {
    transform: scaleX(1);
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--dark-text);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark-text);
}

.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    text-align: center;
    background-image: url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(11, 14, 18, 0.5), rgba(11, 14, 18, 0.65));
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
}

.hero-content h1,
.section-title,
.page-header h1,
.founder-details h3,
.category-title,
.service-title h3,
.service-card h3,
.achievement-card .achievement-label,
.contact-title,
.course-title,
.modal-title,
.certificate-header h3 {
    font-family: var(--font-heading);
    color: var(--dark-text);
    letter-spacing: 0.02em;
}

.hero-content h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 24px;
    color: #ffffff;
    text-shadow: none;
}

.hero-content p {
    font-size: 1.08rem;
    margin-bottom: 36px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.services-overview,
.about-section,
.services-section {
    padding: 110px 0;
}

.section-title {
    text-align: center;
    font-size: 2.6rem;
    margin-bottom: 72px;
    position: relative;
}

.section-title::after,
.category-title::after,
.contact-title::after {
    content: '';
    position: absolute;
    bottom: -18px;
    left: 50%;
    transform: translateX(-50%);
    width: 72px;
    height: 1px;
    background: rgba(140, 116, 72, 0.8);
}

.contact-title::after {
    left: 0;
    transform: none;
    bottom: -10px;
    width: 48px;
}

.service-cards,
.achievements-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1120px;
    margin: 0 auto;
    gap: 28px;
}

.service-card,
.achievement-card,
.card,
.intro-section,
.founder-section,
.achievements-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
}

.service-card,
.achievement-card {
    width: 320px;
    margin: 0;
    padding: 34px 28px;
    text-align: center;
}

.service-cards .service-card:nth-child(n+4),
.achievements-grid .achievement-card:nth-child(n+4) {
    margin-top: 0;
}

.achievements-section {
    text-align: center;
    padding: 48px;
    margin-top: 96px;
}

.achievements-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.card-icon,
.achievement-icon,
.service-icon,
.contact-icon {
    width: 58px;
    height: 58px;
    background: rgba(17, 17, 17, 0.04);
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 22px;
}

.card-icon i,
.achievement-icon i,
.service-icon i,
.contact-icon i,
.feature-item i,
.founder-achievements i {
    font-size: 1.5rem;
    color: var(--gold-accent);
}

.service-card h3,
.achievement-card .achievement-label {
    font-size: 1.5rem;
    color: var(--dark-text);
    margin-bottom: 14px;
}

.service-card p,
.achievement-card .achievement-desc,
.service-description,
.option-desc,
.contact-text p,
.founder-description,
.intro-text,
.product-notice p {
    color: var(--medium-text);
}

.service-card:hover,
.achievement-card:hover,
.card:hover,
.feature-item:hover,
.service-item:hover,
.badge:hover,
.course-card:hover {
    transform: translateY(-2px);
    border-color: rgba(17, 17, 17, 0.16);
    box-shadow: var(--shadow-soft);
}

footer {
    background: #f8f5ef;
    padding: 32px 0;
    border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.copyright {
    margin-bottom: 0;
    color: var(--medium-text);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.social-item {
    margin-left: 0;
    display: flex;
    align-items: center;
    color: var(--medium-text);
}

.social-item i {
    margin-right: 8px;
    font-size: 16px;
    color: var(--gold-accent);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 992px) {
    nav ul {
        gap: 18px;
    }

    .service-cards,
    .achievements-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 18px;
    }

    .logo span {
        font-size: 1.08rem;
        letter-spacing: 0.02em;
        font-family: var(--font-heading);
    }

    .mobile-menu-btn {
        display: block;
    }

    nav {
        position: fixed;
        top: 78px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 78px);
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(16px);
        transition: all 0.35s ease;
        border-top: 1px solid rgba(17, 17, 17, 0.08);
    }

    nav.active {
        left: 0;
    }

    nav ul {
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 42px 22px 24px;
        gap: 14px;
    }

    nav ul li a {
        font-size: 1rem;
        letter-spacing: 0.03em;
    }

    .btn-primary,
    .btn-secondary {
        min-height: 44px;
        padding: 0 20px;
        font-size: 0.76rem;
        letter-spacing: 0.05em;
    }

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

    .social-links {
        justify-content: center;
    }

    .service-card,
    .achievement-card {
        width: 100%;
        max-width: 360px;
    }
}

@media (max-width: 580px) {
    .hero-content h1 {
        font-size: 2.15rem;
        line-height: 1.18;
    }

    .hero-content p {
        font-size: 0.96rem;
        line-height: 1.85;
    }

    .section-title {
        font-size: 1.76rem;
        line-height: 1.25;
        margin-bottom: 56px;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }
}

.page-header {
    background: linear-gradient(180deg, #f7f4ee, #efe9df);
    padding: 78px 0 56px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(17, 17, 17, 0.06);
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, rgba(140, 116, 72, 0.05), transparent 60%);
}

.page-header h1 {
    font-size: 2.7rem;
    color: var(--dark-text);
    text-shadow: none;
    margin-bottom: 12px;
    position: relative;
}

.card {
    padding: 30px;
    transition: all 0.25s ease;
}

.form-control {
    width: 100%;
    padding: 15px 18px;
    background: #ffffff;
    border: 1px solid rgba(17, 17, 17, 0.14);
    border-radius: 14px;
    color: var(--light-text);
    font-size: 1rem;
    transition: all 0.25s ease;
    margin-bottom: 20px;
    box-shadow: none;
}

.form-control:focus {
    border-color: rgba(31, 47, 70, 0.45);
    box-shadow: 0 0 0 3px rgba(31, 47, 70, 0.08);
    outline: none;
    background: #ffffff;
}

.form-control:hover {
    border-color: rgba(17, 17, 17, 0.24);
    background: #ffffff;
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='%231f2f46' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-color: #ffffff;
    padding-right: 40px;
    cursor: pointer;
}

select.form-control option {
    background: #ffffff;
    color: var(--light-text);
    padding: 12px;
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
    background: #ffffff;
    line-height: 1.7;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    color: var(--medium-text);
    font-weight: 500;
}

.form-group {
    margin-bottom: 24px;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0.14;
}

@media (max-width: 768px) {
    .page-header {
        padding: 52px 0 40px;
    }

    .page-header h1 {
        font-size: 2rem;
    }
}

.about-section {
    padding: 96px 0;
    background: var(--light-bg);
}

.intro-section {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 56px;
    margin-bottom: 88px;
    padding: 46px;
}

.intro-content {
    padding-right: 0;
}

.intro-text {
    font-size: 1.08rem;
    line-height: 1.9;
    margin-bottom: 40px;
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: 0;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-item {
    text-align: center;
    padding: 28px 22px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 20px;
    transition: all 0.25s ease;
}

.feature-item h3 {
    color: var(--dark-text);
    margin-bottom: 10px;
    font-size: 1.12rem;
    font-family: var(--font-heading);
}

.intro-image {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid rgba(17, 17, 17, 0.08);
    box-shadow: var(--shadow-soft);
}

.intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.founder-section {
    margin-bottom: 88px;
    padding: 48px;
}

.founder-content {
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
}

.founder-details {
    padding: 44px;
    background: rgba(255, 255, 255, 0.78);
    border-radius: 24px;
    border: 1px solid rgba(17, 17, 17, 0.08);
    text-align: center;
    box-shadow: none;
}

.founder-details h3 {
    font-size: 2.8rem;
    color: var(--dark-text);
    margin-bottom: 14px;
    text-shadow: none;
}

.founder-title {
    display: inline-block;
    font-size: 1rem;
    color: var(--medium-text);
    margin-bottom: 24px;
    padding: 9px 20px;
    border: 1px solid rgba(17, 17, 17, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
}

.founder-description {
    margin: 28px auto;
    max-width: 800px;
    line-height: 1.9;
    font-size: 1.04rem;
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: 0;
}

.founder-achievements {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.founder-achievements li {
    display: flex;
    align-items: center;
    color: var(--light-text);
    background: rgba(17, 17, 17, 0.03);
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid rgba(17, 17, 17, 0.08);
}

.achievements-section {
    padding: 48px;
}

.achievement-number {
    font-size: 2.5rem;
    color: var(--dark-text);
    font-weight: 700;
    margin-bottom: 10px;
    font-family: var(--font-heading);
}

.achievement-label {
    color: var(--medium-text);
    font-size: 1rem;
}

@media (max-width: 992px) {
    .intro-section,
    .founder-content {
        grid-template-columns: 1fr;
    }

    .intro-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .intro-features {
        grid-template-columns: 1fr;
    }

    .achievement-card {
        padding: 24px;
    }
}

.services-section {
    padding: 96px 0;
    background: var(--light-bg);
}

.text-center {
    text-align: center;
}

.service-item-header {
    margin-bottom: 20px;
}

.service-title {
    width: 100%;
}

.service-title h3 {
    font-size: 1.9rem;
    color: var(--dark-text);
    margin-bottom: 10px;
}

.service-price,
.option-price,
.course-price,
.modal-price {
    font-size: 1.15rem;
    color: var(--gold-accent);
    font-weight: 600;
}

.services-section:nth-child(even) {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-icon {
    margin: 0 auto 20px;
}

.service-card h3 {
    text-align: center;
    color: var(--dark-text);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.service-description {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1rem;
    line-height: 1.85;
}

.service-options {
    border-top: 1px solid rgba(17, 17, 17, 0.08);
    padding-top: 20px;
}

.option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.06);
}

.option:last-child {
    border-bottom: none;
}

.option-name {
    color: var(--light-text);
    font-size: 1.02rem;
    flex: 1;
}

.ritual-category {
    margin-bottom: 60px;
}

.category-title {
    color: var(--dark-text);
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 36px;
    position: relative;
}

.product-notice {
    margin-top: 30px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.84);
    border-radius: 20px;
    border: 1px solid rgba(17, 17, 17, 0.08);
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .option {
        flex-direction: column;
        align-items: flex-start;
    }

    .option-price {
        margin-left: 0;
        margin-top: 6px;
    }
}

.founder-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 22px 24px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 18px;
    transition: all 0.25s ease;
    min-width: 150px;
}

.badge i {
    font-size: 1.8rem;
    color: var(--gold-accent);
    margin-bottom: 10px;
}

.badge span {
    color: var(--light-text);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
}

@media (max-width: 768px) {
    .founder-badges {
        flex-direction: column;
        align-items: center;
    }

    .badge {
        width: 100%;
        max-width: 250px;
    }

    .founder-details {
        padding: 28px;
    }

    .founder-details h3 {
        font-size: 2.2rem;
    }
}

.service-cards > div:nth-last-child(-n+2),
.achievements-grid > div:nth-last-child(-n+2) {
    margin-left: 0;
    margin-right: 0;
}

@media (min-width: 993px) {
    .service-cards,
    .achievements-grid {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }

    .service-card:nth-child(4),
    .achievement-card:nth-child(4),
    .service-card:nth-child(5),
    .achievement-card:nth-child(5) {
        flex: 0 1 320px;
        margin: 0;
    }
}

@media (max-width: 576px) {
    .service-card,
    .achievement-card {
        min-height: auto;
    }
}

.bottom-cards {
    display: flex;
    justify-content: center;
    margin: 36px auto 0;
    max-width: 720px;
    gap: 28px;
}

.bottom-cards .achievement-card {
    margin: 0;
}

@media (max-width: 768px) {
    .bottom-cards {
        flex-direction: column;
        align-items: center;
        gap: 20px;
        max-width: 100%;
    }
}