/* --- Google Fonts：Cormorant Garamond + DM Sans --- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,600&family=DM+Sans:wght@300;400;500&display=swap');

/* --- 基礎設定 --- */
:root {
    --primary-brown: #7A5535;
    --dark-brown: #5C4033;
    --gold-accent: #B8905A;
    --deep-dark: #18110A;
    --text-dark: #1C1410;
    --text-sub: #2D1F15;
    --text-body: #3C3028;
    --text-muted: #857870;
    --bg-light: #FAF6F1;
    --bg-warm: #FBF8F4;
    --white: #FFFFFF;
    /* 深色區文字 */
    --dark-heading: #E8D4BA;
    --dark-subhead: #D0B896;
    --dark-gold: #B8905A;
    --dark-body: rgba(210, 190, 162, 0.88);
    /* 字體系統 */
    --font-heading: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-body: 'DM Sans', 'PingFang HK', 'Microsoft JhengHei', sans-serif;
    /* Type Scale — 統一字體大小 */
    --text-eyebrow: 11px;                      /* eyebrow 標籤（原 9/10px，已修正） */
    --text-xs:      12px;                      /* 細 caption / 版權文字 */
    --text-sm:      14px;                      /* 導航 CTA、按鈕、小標 */
    --text-base:    16px;                      /* 正文 body text */
    --text-lead:    18px;                      /* 介紹/前言 lead text */
    --text-h4:      18px;                      /* h4 標題 */
    --text-h3:      22px;                      /* FAQ h3、次要 section 標題 */
    --text-h3-lg:   28px;                      /* 較大 card 標題 */
    --text-h2:      32px;                      /* section h2 */
    --text-h2-lg:   36px;                      /* 較大 section h2 */
    --text-hero-sm: clamp(22px, 3vw, 28px);    /* 小型 hero heading */
    --text-hero-md: clamp(28px, 3.5vw, 36px);  /* 中型 hero heading */
    --text-hero-lg: clamp(32px, 5vw, 52px);    /* 服務頁 hero h1 */
    --text-hero-xl: clamp(36px, 5vw, 56px);    /* 首頁 hero h1 */
    --text-display: 72px;                      /* 裝飾性 quotemark display */
}

/* --- 全域 Box Model 修正：防止 padding 造成 flex 子元素溢出 --- */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.75;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: var(--bg-light);
}

/* --- 標題字體：Cormorant Garamond 高雅 Serif --- */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* --- 輕奢漸變文字系統 --- */
.gt-dark {
    background: linear-gradient(135deg, #F0E6D0 0%, #C5A26B 40%, #EDD8BC 70%, #B8905A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline;
}
.gt-light {
    background: linear-gradient(135deg, #1C1410 0%, #7A5535 50%, #3D2410 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline;
}
.gt-gold {
    background: linear-gradient(135deg, #C5A26B 0%, #F0C878 50%, #B8905A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline;
}

/* --- Eyebrow Label --- */
.eyebrow {
    font-family: var(--font-body);
    font-size: var(--text-eyebrow);
    font-weight: 500;
    letter-spacing: 3.5px;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: block;
}

/* --- 頁面外層（繼承 body 所有樣式，只需重置邊距） --- */
.page-shell {
    margin: 0;
    padding: 0;
}

/* --- 導覽列 --- */
.site-nav {
    background: #FFFFFF;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #E8E0D8;
}

.logo {
    display: inline-flex;
    align-items: center;
    line-height: 0;
    text-decoration: none;
    flex-shrink: 0;
}

.logo img {
    height: 45px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    object-position: left center;
    display: block;
}

.logo:hover img,
.logo:focus-visible img {
    opacity: 0.92;
}

.logo:focus-visible {
    outline: 2px solid var(--primary-brown);
    outline-offset: 4px;
    border-radius: 4px;
}

/* 漢堡：預設隱藏，手機顯示 */
.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    font-size: 22px;
    line-height: 1;
    border: 1px solid rgba(139, 90, 43, 0.3);
    border-radius: 4px;
    background: transparent;
    color: var(--text-dark);
    cursor: pointer;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
    border-color: var(--primary-brown);
    color: var(--primary-brown);
    outline: none;
}

.menu-links {
    display: flex;
    gap: 8px 20px;
    align-items: center;
    font-weight: 500;
    flex-wrap: wrap;
}

.nav-item {
    position: relative;
}

.nav-item--dropdown {
    position: relative;
}

.nav-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 4px;
    margin: 0;
    font: inherit;
    font-weight: 500;
    color: var(--text-dark);
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
}

.nav-trigger:hover,
.nav-trigger:focus-visible {
    color: var(--primary-brown);
    outline: none;
}

.nav-chevron {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid currentColor;
    margin-top: 2px;
    opacity: 0.7;
}

.nav-dropdown {
    list-style: none;
    margin: 0;
    padding: 0;
    min-width: 220px;
    background: #FFFFFF;
    border-radius: 4px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border: 1px solid #E8E0D8;
}

.nav-dropdown li {
    margin: 0;
}

.nav-dropdown a {
    display: block;
    padding: 12px 16px;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid #F0EBE4;
}

.nav-dropdown li:last-child a {
    border-bottom: none;
}

.nav-dropdown a:hover,
.nav-dropdown a:focus-visible {
    background: #F9F6F2;
    color: var(--primary-brown);
    outline: none;
}

.nav-link {
    padding: 8px 4px;
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--primary-brown);
    outline: none;
}

/* --- 當前頁面導航高亮 --- */
.nav-dropdown a.is-active {
    color: var(--primary-brown);
    font-weight: 700;
    background: rgba(122, 85, 53, 0.06);
}

.nav-link.is-active {
    color: var(--primary-brown);
    font-weight: 700;
}

/* --- Nav CTA WhatsApp 按鈕 --- */
.nav-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 20px;
    background: linear-gradient(135deg, var(--primary-brown), var(--dark-brown));
    color: var(--white) !important;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none !important;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: opacity 0.2s ease, transform 0.15s ease;
}
.nav-cta-btn:hover,
.nav-cta-btn:focus-visible {
    opacity: 0.88;
    transform: translateY(-1px);
    outline: none;
    color: var(--white) !important;
}
@media (max-width: 768px) {
    .nav-cta-btn {
        margin: 8px 0 4px;
        width: 100%;
        justify-content: center;
        padding: 13px 20px;
        border-radius: 4px;
    }
}

.lang-switch {
    margin-left: 12px;
    padding-left: 20px;
    border-left: 1px solid #E0D5C8;
    flex-shrink: 0;
}

.lang-chevron {
    display: inline-block;
    font-size: 0.7em;
    line-height: 1;
    margin-left: 3px;
    opacity: 0.75;
    transform: translateY(1px);
}

.nav-dropdown--lang {
    min-width: 160px;
}

.nav-dropdown__current {
    display: block;
    padding: 12px 16px;
    margin: 0;
    font-weight: 700;
    color: var(--primary-brown);
    border-bottom: 1px solid #F0EFEE;
    white-space: nowrap;
}

/* 桌面：下拉懸停／焦點顯示 */
@media (min-width: 769px) {
    .nav-dropdown {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        z-index: 1001;
        padding: 8px 0;
    }

    .nav-item--dropdown:hover .nav-dropdown,
    .nav-item--dropdown:focus-within .nav-dropdown,
    .nav-item--dropdown.is-open .nav-dropdown {
        display: block;
    }

    .lang-switch.nav-item--dropdown .nav-dropdown {
        left: auto;
        right: 0;
    }
}

/* --- 首屏 Hero --- */
.hero-section {
    position: relative;
    padding: 120px 5%;
    background: linear-gradient(
            rgba(26, 18, 8, 0.82),
            rgba(92, 64, 51, 0.65)
        ),
        url('assets/images/piano-bg.avif') center / cover no-repeat;
    text-align: left;
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 80vh;
}

.hero-section__inner {
    max-width: 900px;
}

.hero-section h1 {
    font-size: var(--text-hero-xl);
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
}

.hero-section h2 {
    font-size: clamp(17px, 2.5vw, 22px);
    font-weight: 400;
    font-style: italic;
    margin-bottom: 25px;
    color: var(--dark-body);
    border-left: none;
    padding-left: 0;
}

.hero-section__lead {
    font-size: var(--text-lead);
    margin-bottom: 40px;
    max-width: 700px;
    opacity: 0.9;
}

.hero-section__actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-hero-primary {
    border: 1px solid rgba(184, 144, 90, 0.75);
    background: transparent;
    color: var(--dark-heading);
    padding: 14px 30px;
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-body);
    font-size: 14px;
    letter-spacing: 1px;
    border-radius: 2px;
    transition: background 0.2s ease, color 0.2s ease;
}
.btn-hero-primary:hover {
    background: rgba(184, 144, 90, 0.12);
    color: var(--dark-heading);
}

.btn-hero-outline {
    background: transparent;
    border: none;
    color: var(--dark-gold);
    padding: 14px 4px;
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: rgba(184, 144, 90, 0.5);
    font-weight: 400;
    font-family: var(--font-body);
    font-size: 14px;
    letter-spacing: 1px;
    border-radius: 0;
}

/* --- 信任區塊 --- */
.trust-section {
    padding: 80px 5%;
    background-color: #F9F6F2;
}

.trust-section__intro {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto 60px;
}

.trust-section__intro h2 {
    font-size: var(--text-h2);
    margin-bottom: 20px;
    font-weight: 600;
}

.trust-section__intro p {
    font-size: var(--text-lead);
    color: var(--text-body);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    max-width: 1100px;
    margin: 0 auto;
}

.trust-card {
    background: #FEFAF5;
    padding: 36px;
    border-radius: 10px;
    border: 1px solid transparent;
    background-clip: padding-box;
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.trust-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 10px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(184,144,90,0.15), rgba(240,200,120,0.35), rgba(184,144,90,0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.trust-card:hover {
    box-shadow: 0 8px 32px rgba(122, 85, 53, 0.1);
    transform: translateY(-3px);
}

.trust-card__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(184,144,90,0.15), rgba(240,200,120,0.08));
    border-radius: 10px;
    border: 1px solid rgba(184,144,90,0.22);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    box-sizing: border-box;
}

.trust-card__icon svg {
    stroke: var(--gold-accent);
    width: 100%;
    height: 100%;
}

.trust-card h3 {
    font-size: var(--text-eyebrow);
    color: var(--primary-brown);
    margin: 0 0 6px 0;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-family: var(--font-body);
    font-weight: 500;
}

.trust-card p {
    font-size: var(--text-base);
    color: var(--text-muted);
    margin: 0;
    line-height: 1.75;
}

/* --- 工作室展示條（位於 trust-section 內、trust-grid 之後） --- */
.trust-section .studio-showcase {
    margin-top: 60px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.studio-showcase {
    background: #FEFCFA;
    display: flex;
    flex-wrap: wrap;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(139, 90, 43, 0.1);
    border: 1px solid #E5D8CE;
}

.studio-showcase__text {
    flex: 1;
    min-width: 300px;
    padding: 50px;
    box-sizing: border-box;
}

.studio-showcase__text h3 {
    font-size: 28px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.studio-showcase__text p {
    font-size: 16px;
    color: var(--text-body);
}

.studio-showcase__media {
    flex: 1;
    min-width: 300px;
    width: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    aspect-ratio: 16 / 9;
    min-height: 450px;
}

/* --- 服務區 --- */
.services-section {
    padding: 100px 5%;
    background-color: #F9F6F2;
    font-family: var(--font-body);
}

.services-section__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.services-section__header {
    text-align: center;
    margin-bottom: 80px;
}

.services-section__header h2 {
    font-size: var(--text-h2-lg);
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.accent-rule {
    width: 48px;
    height: 1px;
    background: linear-gradient(90deg, var(--gold-accent), #F0C878, rgba(184, 144, 90, 0));
    margin: 16px auto;
    border: none;
}

.service-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 60px;
    margin-bottom: 120px;
}

.service-card--reverse {
    flex-wrap: wrap-reverse;
}

/* CTA 前最後一則服務列（.services-section__cta 為最後一個子 div） */
.services-section__inner > .service-card:nth-last-child(2) {
    margin-bottom: 0;
}

.service-card__col {
    flex: 1 1 380px;
    min-width: 0;
    max-width: calc(50% - 30px);
}

.service-card__col img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    object-position: center;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 20px 20px 0 rgba(212, 167, 106, 0.08);
    border: 1px solid rgba(212, 167, 106, 0.18);
}

.service-card--reverse .service-card__col:last-child img {
    box-shadow: -20px 20px 0 rgba(212, 167, 106, 0.08);
}

.service-card__body h3 {
    font-size: var(--text-h2);
    color: var(--text-dark);
    margin: 0 0 30px 0;
    font-weight: 700;
}

.service-card__block {
    margin-bottom: 25px;
}

.service-card__block--last {
    margin-bottom: 35px;
}

.service-card__body h4 {
    color: var(--dark-gold);
    font-size: var(--text-eyebrow);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    font-weight: 500;
    font-family: var(--font-body);
}

.service-card__body p {
    color: var(--text-body);
    margin: 0;
    line-height: 1.7;
    font-size: var(--text-base);
}

.service-card__link {
    display: inline-block;
    color: var(--primary-brown);
    font-weight: bold;
    text-decoration: none;
    border-bottom: 2px solid var(--primary-brown);
    padding-bottom: 5px;
    transition: all 0.3s ease;
}

.services-section__cta {
    text-align: center;
    margin-top: 80px;
}

.btn-services-whatsapp {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-brown), var(--dark-brown));
    color: var(--white);
    padding: 20px 45px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    font-size: 18px;
    box-shadow: 0 10px 20px rgba(139, 90, 43, 0.3);
}

/* --- 理念區 --- */
.mission-section {
    padding: 100px 5%;
    background: linear-gradient(135deg, var(--deep-dark), #0D0905);
}

.mission-section__inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.mission-section__quotemark {
    font-family: var(--font-heading);
    font-size: var(--text-display);
    line-height: 0.6;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #C5A26B 0%, #F0C878 50%, #B8905A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: block;
    font-style: italic;
}

.mission-section h2 {
    font-size: var(--text-h2);
    margin-bottom: 20px;
    font-weight: 600;
}

.mission-section__divider {
    width: 32px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--dark-gold), transparent);
    margin: 0 auto 28px;
    border: none;
}

.mission-section__quote {
    font-size: var(--text-lead);
    color: var(--dark-body);
    margin-bottom: 32px;
    font-style: italic;
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.9;
}

.btn-mission-outline {
    background: transparent;
    border: 0.5px solid rgba(184, 144, 90, 0.65);
    color: var(--dark-gold);
    padding: 11px 28px;
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-body);
    font-size: 12px;
    letter-spacing: 1.5px;
    border-radius: 2px;
    display: inline-block;
    transition: background 0.2s ease;
}
.btn-mission-outline:hover {
    background: rgba(184, 144, 90, 0.1);
}

/* --- FAQ --- */
.faq-section {
    padding: 80px 5%;
    background-color: #F9F6F2;
}

.faq-section > h2 {
    text-align: center;
    font-size: 32px;
    color: var(--text-dark);
    margin-bottom: 50px;
}

.faq-section__list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 24px;
    padding: 20px 20px 20px 22px;
    border-left: 2px solid;
    border-image: linear-gradient(180deg, #B8905A, #F0C878, #B8905A) 1;
    background: #1E1408;
    border-radius: 0 6px 6px 0;
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    column-gap: 10px;
}

/* Q. 標籤與問題標題同行 */
.faq-item .eyebrow {
    flex: 0 0 auto;
    margin-bottom: 0;
}

.faq-item h3,
.faq-item h4 {
    flex: 1 1 0;
    min-width: 0;
    margin-top: 0;
    color: var(--dark-brown);
}

/* 答案另起完整一行 */
.faq-item p {
    flex: 0 0 100%;
    margin: 10px 0 0;
    color: var(--text-muted);
}

.faq-item a {
    color: var(--primary-brown);
    font-weight: bold;
    text-decoration: underline;
}

/* --- 頁尾前 CTA --- */
.pre-footer-cta {
    padding: 100px 5%;
    background: linear-gradient(135deg, var(--deep-dark) 0%, #0D0905 100%);
    display: flex;
    justify-content: center;
    align-items: center;
}

.pre-footer-cta__card {
    max-width: 1100px;
    width: 100%;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    background: #231A10;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(212, 167, 106, 0.2);
}

.pre-footer-cta__visual {
    flex: 1 1 300px;
    min-width: 0;
    min-height: 200px;
    background: linear-gradient(
            to bottom,
            rgba(92, 64, 51, 0.85),
            rgba(26, 18, 8, 0.92)
        ),
        url('assets/images/playing-piano.avif') center / cover;
    background-repeat: no-repeat;
    padding: 60px;
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
}

.pre-footer-cta__visual h2 {
    font-size: var(--text-h2-lg);
    margin-bottom: 20px;
    line-height: 1.25;
    word-wrap: break-word;
    overflow-wrap: anywhere;
    max-width: 100%;
}

.pre-footer-cta__bar {
    width: 48px;
    height: 1px;
    background: linear-gradient(90deg, var(--dark-gold), #F0C878, rgba(184,144,90,0));
    margin: 16px 0 28px 0;
    border: none;
}

.pre-footer-cta__visual p {
    font-size: var(--text-lead);
    opacity: 0.9;
    margin-bottom: 0;
    word-wrap: break-word;
    overflow-wrap: anywhere;
    max-width: 100%;
}

.pre-footer-cta__panel {
    flex: 1 1 300px;
    min-width: 0;
    padding: 60px;
    background: #231A10;
    box-sizing: border-box;
}

.pre-footer-cta__block {
    margin-bottom: 40px;
}

.pre-footer-cta__block h4 {
    color: var(--dark-gold);
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: var(--text-eyebrow);
    font-family: var(--font-body);
    font-weight: 500;
    margin-bottom: 10px;
}

.pre-footer-cta__wa {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 15px;
}

.pre-footer-cta__wa span {
    font-size: 26px;
    color: var(--white);
    font-weight: 700;
}

.pre-footer-cta__divider {
    margin-bottom: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(212, 167, 106, 0.18);
}

.pre-footer-cta__divider h4 {
    color: var(--dark-gold);
    font-family: var(--font-body);
    font-size: var(--text-eyebrow);
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.pre-footer-cta__divider:last-of-type {
    margin-bottom: 0;
    padding-top: 30px;
}

.pre-footer-cta__divider p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.65);
    margin: 0;
    line-height: 1.6;
}

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

/* --- 頁尾導航清單 --- */
.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav-list + .footer-nav-list {
    margin-top: 14px;
}

/* --- 頁尾 --- */
footer {
    background: var(--deep-dark);
    color: var(--white);
    padding: 60px 5%;
    font-family: var(--font-body);
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-grid h4 {
    color: var(--primary-brown);
    margin-bottom: 20px;
}

.footer-grid p,
.footer-grid a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.8;
}

.footer-grid a {
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
}

.footer-grid__links {
    text-align: right;
}

footer .footer-meta {
    text-align: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.45);
    font-size: 13px;
}

/* --- 共用元件（保留） --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-brown), var(--dark-brown));
    color: var(--white);
    padding: 15px 30px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    display: inline-block;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
}

.section-padding {
    padding: 80px 5%;
}

/* --- 響應式：768px 以下 --- */
@media (max-width: 768px) {
    .trust-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid__links {
        text-align: left;
    }

    .service-card,
    .service-card--reverse {
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 40px;
        margin-bottom: 80px;
    }

    .service-card__col {
        max-width: 100%;
        flex: 1 1 auto;
    }

    .service-card__col img {
        aspect-ratio: 4 / 3;
        box-shadow: 12px 12px 0 var(--bg-light);
    }

    .service-card--reverse .service-card__col:last-child img {
        box-shadow: 12px 12px 0 var(--bg-light);
    }

    .studio-showcase,
    .pre-footer-cta__card {
        flex-direction: column;
    }

    .pre-footer-cta__card {
        overflow: visible;
    }

    .studio-showcase__text,
    .studio-showcase__media,
    .pre-footer-cta__visual,
    .pre-footer-cta__panel {
        min-width: 0;
        width: 100%;
        max-width: 100%;
    }

    .studio-showcase__text {
        padding: 28px 24px;
    }

    .studio-showcase__media {
        min-height: 260px;
        aspect-ratio: 16 / 9;
    }

    .pre-footer-cta {
        padding: 48px 5%;
    }

    .pre-footer-cta__visual {
        min-height: 240px;
        padding: 28px 20px;
        background-size: cover;
        background-position: center;
    }

    .pre-footer-cta__visual h2 {
        font-size: clamp(1.35rem, 5vw, 1.85rem);
    }

    .pre-footer-cta__visual p {
        font-size: 16px;
    }

    .pre-footer-cta__panel {
        padding: 28px 20px 32px;
    }

    .logo img {
        height: 40px;
        max-width: min(200px, 65vw);
    }

    .hero-section {
        padding: 80px 5%;
        min-height: 70vh;
        /* 手機版改用均勻暗色 overlay，避免 90deg 漸層令右側圖像透出太多 */
        background-image: linear-gradient(rgba(24,17,10,0.90), rgba(24,17,10,0.80)) !important;
    }

    .hero-section__inner {
        width: 100%;
    }

    /* 漢堡 + 摺疊選單 */
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        position: sticky;
        align-items: center;
    }

    .menu-links {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        flex-basis: 100%;
        order: 3;
        gap: 0;
        padding: 16px 0 8px;
        margin-top: 12px;
        border-top: 1px solid #E8E0D8;
    }

    .menu-links.is-open {
        display: flex;
    }

    .nav-item,
    .nav-link {
        width: 100%;
    }

    .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid #F0EFEE;
    }

    .nav-trigger {
        width: 100%;
        justify-content: space-between;
        padding: 12px 0;
        border-bottom: 1px solid #F0EFEE;
    }

    .nav-dropdown {
        display: none;
        position: static;
        box-shadow: none;
        border: none;
        border-radius: 0;
        padding: 0;
        margin: 0 0 8px 12px;
        min-width: auto;
        background: #FFFFFF;
    }

    .nav-item--dropdown.is-open .nav-dropdown {
        display: block;
    }

    .nav-dropdown a {
        padding: 10px 12px;
        font-size: 15px;
    }

    .lang-switch {
        margin-left: 0;
        padding: 16px 0 8px;
        border-left: none;
        border-top: 1px solid #ECEBE9;
        width: 100%;
        margin-top: 8px;
    }

    .nav-dropdown__current {
        padding: 10px 12px;
        font-size: 15px;
    }

    .service-tuning-why-grid,
    .service-tuning-dehumid-grid {
        grid-template-columns: 1fr;
    }

    .service-tuning-process,
    .service-tuning-split,
    .service-tuning-cta-row {
        flex-direction: column;
    }

    .service-tuning-process__media,
    .service-tuning-split__media,
    .service-tuning-split__content {
        flex: 1 1 auto;
        min-width: 0;
    }

    .service-tuning-step:not(.service-tuning-step--last)::after {
        left: 19px;
    }

    .about-certs-grid {
        grid-template-columns: 1fr;
    }

    .about-split,
    .about-split--reverse {
        flex-direction: column;
        flex-wrap: nowrap;
        gap: 40px;
    }

    .about-cta-panel {
        flex-direction: column;
    }

    .about-cta-panel__right {
        flex: 1 1 auto;
        min-height: 280px;
    }
}

/* --- 關於我們內頁 --- */
.about-page {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.about-hero {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 70vh;
    padding: 120px 5%;
    text-align: left;
    color: #ffffff;
    background: linear-gradient(rgba(47, 47, 47, 0.7), rgba(92, 64, 51, 0.6)),
        url('assets/images/about-us-hero-bg.webp') center / cover no-repeat;
}

.about-hero__inner {
    max-width: 900px;
}

.about-hero__kicker {
    color: #8b5a2b;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
    font-size: 14px;
    margin: 0 0 20px;
}

.about-hero__title {
    font-size: var(--text-hero-xl);
    font-weight: 700;
    margin: 0 0 15px;
    line-height: 1.2;
    color: #ffffff;
}

.about-hero__rule {
    width: 80px;
    height: 4px;
    background: #8b5a2b;
    margin-bottom: 30px;
}

.about-hero__actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.about-hero__btn {
    background: linear-gradient(135deg, #8b5a2b, #5c4033);
    color: #ffffff;
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.about-section {
    padding: 100px 5%;
    background-color: var(--bg-light);
}

.about-section--cream {
    background-color: #F5EEE6;
}

.about-section__container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-split {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 60px;
}

.about-split--reverse {
    flex-wrap: wrap-reverse;
}

.about-split__text {
    flex: 1;
    min-width: 320px;
}

.about-split__h2 {
    font-size: var(--text-h2);
    color: #5c4033;
    margin-bottom: 25px;
    font-weight: 700;
    margin-top: 0;
}

.about-split__h2--dark {
    color: #2f2f2f;
    margin-bottom: 20px;
}

.about-split__p {
    font-size: var(--text-lead);
    color: #444444;
    margin-bottom: 20px;
    margin-top: 0;
}

.about-split__p--narrow {
    font-size: 16px;
    color: #555555;
    margin-bottom: 30px;
}

.about-split__p--mb0 {
    margin-bottom: 0;
}

.about-split__media {
    flex: 1;
    min-width: 320px;
}

.about-split__img {
    width: 100%;
    border-radius: 4px;
    border: 1px solid #eeeeee;
}

.about-split__img--shadow-right {
    box-shadow: 20px 20px 0 #f9f7f5;
}

.about-split__img--shadow-left {
    box-shadow: -20px 20px 0 #f9f7f5;
}

.about-certs-head {
    text-align: center;
    margin-bottom: 60px;
}

.about-certs-head__h2 {
    font-size: var(--text-h2-lg);
    color: #2f2f2f;
    margin-bottom: 15px;
    font-weight: 700;
    margin-top: 0;
}

.about-certs-head__p {
    font-size: var(--text-lead);
    color: #666666;
    max-width: 800px;
    margin: 0 auto;
}

.about-certs-subtitle {
    font-size: 22px;
    color: #5c4033;
    margin-bottom: 40px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 700;
    margin-top: 0;
}

.about-certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.about-cert-card {
    background: #FEFCFA;
    padding: 40px;
    border-radius: 4px;
    border: 1px solid #E0D5C8;
    display: flex;
    align-items: center;
    gap: 25px;
}

.about-cert-card__icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
}

.about-cert-card__icon svg {
    width: 50px;
    height: 50px;
    display: block;
}

.about-cert-card__body {
    flex: 1;
    min-width: 0;
}

.about-cert-card__h4 {
    font-size: var(--text-h4);
    color: #2f2f2f;
    margin: 0 0 8px;
}

.about-cert-card__p {
    font-size: var(--text-base);
    color: #666666;
    margin: 0;
}

.about-feature-block {
    margin-bottom: 20px;
    padding-left: 20px;
    border-left: 3px solid #8b5a2b;
}

.about-feature-block--mb0 {
    margin-bottom: 0;
}

.about-feature-block__h4 {
    font-size: 18px;
    color: #5c4033;
    margin: 0 0 5px;
}

.about-feature-block__p {
    font-size: 15px;
    color: #666666;
    margin: 0;
}

.about-quote {
    padding: 100px 5%;
    background: linear-gradient(135deg, #5c4033 0%, #2f2f2f 100%);
    color: #ffffff;
    text-align: center;
}

.about-quote__inner {
    max-width: 800px;
    margin: 0 auto;
}

.about-quote__h2 {
    font-size: var(--text-h2-lg);
    margin-bottom: 25px;
    font-weight: 700;
    margin-top: 0;
    color: #ffffff;
}

.about-quote__lead {
    font-size: 19px;
    line-height: 1.8;
    opacity: 0.9;
    font-style: italic;
    margin: 0;
    color: #ffffff;
}

.about-quote__body {
    font-size: 18px;
    margin-top: 20px;
    opacity: 0.9;
    line-height: 1.75;
    margin-bottom: 0;
    color: #ffffff;
}

.about-section--cta-wrap {
    padding: 100px 5%;
}

.about-cta-panel {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    background: #231A10;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(212, 167, 106, 0.2);
}

.about-cta-panel__left {
    flex: 1;
    min-width: 300px;
    background: linear-gradient(to right, rgba(26, 18, 8, 0.92), rgba(26, 18, 8, 0.75)),
        url('assets/images/piano-bg.avif') center / cover;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-cta-panel__h2 {
    font-size: var(--text-h2);
    color: var(--gold-accent);
    margin-bottom: 20px;
    line-height: 1.2;
    margin-top: 0;
}

.about-cta-panel__p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 25px;
    margin-top: 0;
}

.about-cta-panel__emph {
    font-size: 18px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 30px;
    margin-top: 0;
}

.about-cta-panel__note {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 35px;
    margin-top: 0;
}

.about-cta-panel__btn {
    text-decoration: none;
    background: linear-gradient(135deg, #8b5a2b, #5c4033);
    color: #ffffff;
    padding: 18px 40px;
    border-radius: 4px;
    font-weight: bold;
    display: inline-block;
    text-align: center;
    box-shadow: 0 10px 20px rgba(139, 90, 43, 0.2);
}

.about-cta-panel__right {
    flex: 0.8;
    min-width: 300px;
    background: url('assets/images/home-service-cabinet-refinishing.webp') center / cover no-repeat;
    min-height: 400px;
}

/* --- about-us/index.html 內容區（abusr-*，與原 inline 對齊） --- */
.abusr-root {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.abusr-hero {
    position: relative;
    padding: 120px 5%;
    background: linear-gradient(rgba(47, 47, 47, 0.7), rgba(92, 64, 51, 0.6)),
        url('assets/images/about-us-hero-bg.webp') center / cover no-repeat;
    text-align: left;
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 70vh;
}

.abusr-hero-inner {
    max-width: 900px;
}

.abusr-hero-kicker {
    color: #8b5a2b;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 20px;
}

.abusr-hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    margin-bottom: 15px;
    line-height: 1.2;
}

.abusr-hero-rule {
    width: 80px;
    height: 4px;
    background: #8b5a2b;
    margin-bottom: 30px;
}

.abusr-hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.abusr-hero-wa {
    background: linear-gradient(135deg, #8b5a2b, #5c4033);
    color: #ffffff;
    padding: 15px 35px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.abusr-sec-white {
    padding: 100px 5%;
    background-color: var(--bg-light);
}

.abusr-split-wrap {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 60px;
}

.abusr-col-flex {
    flex: 1;
    min-width: 320px;
}

.abusr-h2-brown {
    font-size: 32px;
    color: #5c4033;
    margin-bottom: 25px;
    font-weight: 700;
}

.abusr-p-intro {
    font-size: 18px;
    color: #444;
    margin-bottom: 20px;
}

.abusr-p-intro-last {
    font-size: 18px;
    color: #444;
}

.abusr-img-full-shadow-r {
    width: 100%;
    border-radius: 4px;
    box-shadow: 20px 20px 0 #f9f7f5;
    border: 1px solid #eee;
}

.abusr-sec-cream {
    padding: 100px 5%;
    background-color: #F5EEE6;
}

.abusr-container-wide {
    max-width: 1200px;
    margin: 0 auto;
}

.abusr-certs-head {
    text-align: center;
    margin-bottom: 60px;
}

.abusr-certs-h2 {
    font-size: 36px;
    color: #2f2f2f;
    margin-bottom: 15px;
    font-weight: 700;
}

.abusr-certs-lead {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.abusr-certs-subtitle {
    font-size: 22px;
    color: #5c4033;
    margin-bottom: 40px;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.abusr-certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
}

.abusr-cert-card {
    background: #FEFCFA;
    padding: 40px;
    border-radius: 4px;
    border: 1px solid #E0D5C8;
    display: flex;
    align-items: center;
    gap: 25px;
}

.abusr-cert-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
}

.abusr-cert-icon svg {
    width: 50px;
    height: 50px;
    display: block;
}

.abusr-cert-h4 {
    font-size: 18px;
    color: var(--primary-brown);
    margin: 0 0 8px 0;
}

.abusr-cert-p {
    font-size: 15px;
    color: var(--text-muted);
    margin: 0;
}

.abusr-split-narrow {
    max-width: 1100px;
    margin: 0 auto;
}

.abusr-split-reverse {
    display: flex;
    flex-wrap: wrap-reverse;
    align-items: center;
    gap: 60px;
}

.abusr-h2-dark {
    font-size: 32px;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-weight: 700;
}

.abusr-p-mid {
    font-size: 16px;
    color: #555;
    margin-bottom: 30px;
}

.abusr-feature {
    margin-bottom: 20px;
    padding-left: 20px;
    border-left: 3px solid #8b5a2b;
}

.abusr-feature-h4 {
    font-size: 18px;
    color: #5c4033;
    margin: 0 0 5px 0;
}

.abusr-feature-p {
    font-size: 15px;
    color: #666;
    margin: 0;
}

.abusr-img-full-shadow-l {
    width: 100%;
    border-radius: 4px;
    box-shadow: -20px 20px 0 #f9f7f5;
    border: 1px solid #eee;
}

.abusr-quote-sec {
    padding: 100px 5%;
    background: linear-gradient(135deg, #5c4033 0%, #2f2f2f 100%);
    color: #ffffff;
    text-align: center;
}

.abusr-quote-inner {
    max-width: 800px;
    margin: 0 auto;
}

.abusr-quote-h2 {
    font-size: 36px;
    margin-bottom: 25px;
    font-weight: 700;
}

.abusr-quote-p {
    font-size: 19px;
    line-height: 1.8;
    opacity: 0.9;
    font-style: italic;
}

.abusr-quote-p2 {
    font-size: 18px;
    margin-top: 20px;
    opacity: 0.9;
}

.abusr-cta-card {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    background: #231A10;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(212, 167, 106, 0.2);
}

.abusr-cta-left {
    flex: 1;
    min-width: 300px;
    background: linear-gradient(to right, rgba(26, 18, 8, 0.92), rgba(26, 18, 8, 0.75)),
        url('assets/images/piano-bg.avif') center / cover;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.abusr-cta-h2 {
    font-size: 32px;
    color: var(--gold-accent);
    margin-bottom: 20px;
    line-height: 1.2;
}

.abusr-cta-p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 25px;
}

.abusr-cta-emph {
    font-size: 18px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 30px;
}

.abusr-cta-note {
    font-size: 16px;
    color: #666;
    margin-bottom: 35px;
}

.abusr-cta-wa {
    text-decoration: none;
    background: linear-gradient(135deg, #8b5a2b, #5c4033);
    color: #ffffff;
    padding: 18px 40px;
    border-radius: 4px;
    font-weight: bold;
    display: inline-block;
    text-align: center;
    box-shadow: 0 10px 20px rgba(139, 90, 43, 0.2);
}

.abusr-cta-right {
    flex: 0.8;
    min-width: 300px;
    background: url('assets/images/home-service-cabinet-refinishing.webp') center / cover no-repeat;
    min-height: 400px;
}

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

    .abusr-split-wrap,
    .abusr-split-reverse {
        flex-direction: column;
        flex-wrap: nowrap;
    }
}

/* --- service/piano-tuning/index.html 內容區（ptusr-*，與原 inline 對齊） --- */
.ptusr-root {
    background-color: var(--bg-light);
    width: 100%;
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
}

.ptusr-hero {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    min-height: 75vh;
    padding: 0 8%;
    background: linear-gradient(90deg, #1A1208 0%, #1A1208 30%, rgba(26,18,8,0.75) 50%, rgba(26,18,8,0) 75%),
        url('assets/images/playing-piano.avif') center right / cover no-repeat;
    position: relative;
    overflow: hidden;
}

.ptusr-hero-inner {
    max-width: 650px;
    z-index: 2;
    padding: 40px 0;
}

.ptusr-hero-bar {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #D4A76A 0%, rgba(212,167,106,0.4) 100%);
    margin-bottom: 35px;
}

.ptusr-hero-h1 {
    font-size: clamp(32px, 5vw, 56px);
    color: var(--dark-heading);
    margin: 0 0 25px 0;
    line-height: 1.2;
    font-weight: 700;
    letter-spacing: -1px;
}

.ptusr-hero-gradient {
    color: var(--dark-gold);
    background: linear-gradient(120deg, var(--dark-heading) 0%, var(--dark-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ptusr-hero-lead {
    font-size: clamp(18px, 1.6vw, 24px);
    color: var(--dark-body);
    margin-bottom: 50px;
    line-height: 1.6;
    font-weight: 300;
    max-width: 520px;
}

.ptusr-hero-actions {
    display: flex;
    align-items: center;
    gap: 25px;
}

.ptusr-hero-wa {
    display: inline-block;
    background: linear-gradient(135deg, #D4A76A 0%, #8B5A2B 100%);
    color: #1A1208;
    padding: 22px 50px;
    text-decoration: none;
    border-radius: 2px;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    box-shadow: 0 15px 35px rgba(212, 167, 106, 0.25);
}

.ptusr-hero-fade {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 15%;
    background: transparent;
    pointer-events: none;
}

.ptusr-intro-sec {
    padding: 50px 20px;
    background-color: var(--bg-light);
}

.ptusr-intro-card {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 0;
    border: 1px solid #f0efed;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.03);
}

.ptusr-intro-left {
    flex: 1;
    min-width: 320px;
    background: #FEFCFA;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.ptusr-intro-rule {
    width: 40px;
    height: 3px;
    background-color: #4a3728;
    margin-bottom: 30px;
}

.ptusr-intro-h2 {
    font-size: 28px;
    color: #4a3728;
    margin-bottom: 25px;
    line-height: 1.3;
}

.ptusr-intro-p {
    font-size: 17px;
    color: #666666;
    margin-bottom: 25px;
}

.ptusr-intro-p-last {
    font-size: 17px;
    color: #666666;
}

.ptusr-intro-right {
    flex: 1;
    min-width: 320px;
    background: #F5EEE6;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
}

.ptusr-bullet-row {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.ptusr-bullet-row--bordered {
    padding: 20px 0;
    border-top: 1px solid #f0efed;
    border-bottom: 1px solid #f0efed;
}

.ptusr-bullet-dot {
    background: #4a3728;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 10px;
    flex-shrink: 0;
}

.ptusr-bullet-h4 {
    margin: 0;
    color: #4a3728;
    font-size: 18px;
}

.ptusr-bullet-sub {
    margin: 5px 0 0 0;
    color: #888;
    font-size: 14px;
}

.ptusr-why-sec {
    padding: 70px 20px;
    background-color: #F5EEE6;
}

.ptusr-why-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.ptusr-why-h2 {
    font-size: 32px;
    color: #4a3728;
    text-align: center;
    margin-bottom: 20px;
}

.ptusr-why-lead {
    text-align: center;
    color: #666666;
    max-width: 750px;
    margin: 0 auto 60px auto;
}

.ptusr-why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.ptusr-why-card {
    background: #FEFCFA;
    padding: 40px 30px;
    border-radius: 4px;
    border-bottom: 3px solid var(--primary-brown);
    box-shadow: 0 10px 30px rgba(139, 90, 43, 0.08);
}

.ptusr-card-svg {
    margin-bottom: 20px;
    display: block;
}

.ptusr-why-h3 {
    font-size: 19px;
    color: var(--primary-brown);
    margin-bottom: 12px;
}

.ptusr-why-p {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
}

.ptusr-process-sec {
    background-color: var(--bg-light);
    padding: 70px 20px;
}

.ptusr-process-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.ptusr-process-head {
    text-align: center;
    margin-bottom: 70px;
}

.ptusr-process-h2 {
    font-size: 36px;
    color: #4a3728;
    margin-bottom: 20px;
}

.ptusr-process-sub {
    color: #666666;
    font-size: 18px;
    margin: 0;
}

.ptusr-process-row {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    align-items: center;
}

.ptusr-process-media {
    flex: 1;
    min-width: 300px;
}

.ptusr-process-img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    object-position: center;
    height: auto;
    display: block;
    border-radius: 15px;
    box-shadow: 0 30px 60px rgba(74, 55, 40, 0.12);
    border: 1px solid #ede9e6;
}

.ptusr-process-timeline-col {
    flex: 1;
    min-width: 320px;
}

.ptusr-process-tl-shell {
    position: relative;
    padding-left: 45px;
}

.ptusr-tl-step {
    margin-bottom: 40px;
    position: relative;
}

.ptusr-tl-step--last {
    margin-bottom: 0;
}

.ptusr-tl-badge {
    position: absolute;
    left: -45px;
    top: 0;
    width: 30px;
    height: 30px;
    background: #4a3728;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    z-index: 2;
}

.ptusr-tl-line {
    position: absolute;
    left: -31px;
    top: 30px;
    width: 2px;
    height: calc(100% + 10px);
    background: #eee;
    z-index: 1;
}

.ptusr-tl-h4 {
    margin: 0 0 8px 0;
    color: #4a3728;
    font-size: 20px;
}

.ptusr-tl-p {
    margin: 0;
    color: #666;
    font-size: 15px;
}

.ptusr-dehumid-sec {
    padding: 70px 20px;
    background-color: #F5EEE6;
}

.ptusr-dehumid-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.ptusr-dehumid-head {
    text-align: center;
    margin-bottom: 60px;
}

.ptusr-dehumid-h2 {
    font-size: 32px;
    color: #4a3728;
    margin-bottom: 20px;
}

.ptusr-dehumid-lead {
    color: #666666;
    max-width: 800px;
    margin: 0 auto;
}

.ptusr-dehumid-row {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.ptusr-dehumid-card {
    flex: 1;
    min-width: 280px;
    background: #FEFCFA;
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #E0D5C8;
    text-align: center;
}

.ptusr-dehumid-h3 {
    font-size: 20px;
    color: #4a3728;
    margin-bottom: 15px;
}

.ptusr-dehumid-p {
    font-size: 15px;
    color: #666666;
    margin: 0;
}

.ptusr-brands-sec {
    background-color: var(--bg-light);
    padding: 70px 20px;
    border-top: 1px solid #E8E0D8;
}

.ptusr-brands-inner {
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.ptusr-brands-h2 {
    font-size: 32px;
    color: #4a3728;
    margin-bottom: 30px;
}

.ptusr-brands-lead {
    color: #666666;
    font-size: 17px;
    max-width: 850px;
    margin: 0 auto 50px;
}

.ptusr-brands-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.ptusr-brand-chip {
    background: #FEFCFA;
    padding: 12px 25px;
    border-radius: 50px;
    border: 1px solid #E0D5C8;
    color: #4a3728;
    font-weight: 600;
    font-size: 15px;
}

.ptusr-brands-note {
    margin-top: 30px;
    color: #999;
    font-style: italic;
    font-size: 14px;
}

.ptusr-reasons-sec {
    background-color: var(--bg-light);
    padding: 70px 20px;
}

.ptusr-reasons-row {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    align-items: center;
}

.ptusr-reasons-media {
    flex: 1;
    min-width: 300px;
}

.ptusr-reasons-img {
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    object-position: center;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.ptusr-reasons-copy {
    flex: 1;
    min-width: 300px;
}

.ptusr-reasons-h2 {
    font-size: 32px;
    color: #4a3728;
    margin-bottom: 40px;
}

.ptusr-reasons-stack {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.ptusr-reason-item {
    padding-left: 20px;
    border-left: 4px solid #4a3728;
}

.ptusr-reason-h4 {
    margin: 0 0 10px 0;
    color: #4a3728;
    font-size: 18px;
}

.ptusr-reason-p {
    color: #666666;
    font-size: 15px;
    margin: 0;
}

.ptusr-footer-cta {
    padding: 100px 20px;
    background-color: #4a3728;
    color: #ffffff;
}

.ptusr-footer-row {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
}

.ptusr-footer-main {
    flex: 1;
    min-width: 300px;
}

.ptusr-footer-h2 {
    font-size: 36px;
    color: #ffffff;
    margin-bottom: 25px;
}

.ptusr-footer-lead {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.ptusr-footer-block {
    margin-bottom: 30px;
}

.ptusr-footer-block--addr {
    margin-bottom: 40px;
}

.ptusr-footer-label {
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    color: #d4c1b0;
}

.ptusr-footer-phone {
    font-size: 24px;
    margin: 0;
}

.ptusr-footer-addr {
    font-size: 16px;
    margin: 0;
    opacity: 0.9;
}

.ptusr-footer-wa {
    display: inline-block;
    background-color: var(--gold-accent);
    color: var(--deep-dark);
    padding: 18px 40px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 700;
    font-size: 16px;
    margin-top: 10px;
}

.ptusr-footer-aside {
    flex: 1;
    min-width: 300px;
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ptusr-aside-h3 {
    color: #ffffff;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    margin-top: 0;
}

.ptusr-aside-star {
    background: #d4c1b0;
    color: #4a3728;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 15px;
    font-size: 14px;
    flex-shrink: 0;
}

.ptusr-aside-p {
    margin-bottom: 20px;
    opacity: 0.9;
}

.ptusr-aside-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    object-position: center;
    height: auto;
    display: block;
    border-radius: 4px;
    margin-top: 20px;
    opacity: 0.7;
}

@media (max-width: 768px) {
    .ptusr-process-row,
    .ptusr-dehumid-row,
    .ptusr-reasons-row,
    .ptusr-footer-row {
        flex-direction: column;
    }

    .ptusr-why-grid {
        grid-template-columns: 1fr;
    }
}

/* 專門修復 WhatsApp 聯絡連結在點擊後變色的問題 */
a[href*="wa.me"]:visited,
a[href*="whatsapp.com"]:visited,
a[href^="tel:"]:visited {
    color: inherit !important;
    text-decoration: none !important;
}

/* 額外保險：確保在點擊瞬間（active）也不會跳色 */
a[href*="wa.me"]:active,
a[href*="whatsapp.com"]:active {
    color: inherit !important;
}

/* ─────────────────────────────────────────────────────────
   響應式：1024px 以下（iPad / 細型 laptop）
   補足 768px–1024px 之間的排版缺口
───────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero-section h1 {
        font-size: clamp(28px, 4.5vw, 44px);
    }

    .service-card,
    .service-card--reverse {
        gap: 40px;
    }

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

/* ─────────────────────────────────────────────────────────
   響應式：480px 以下（細手機，iPhone SE / Android mini）
   補足 480px 以下的字體及間距缺口
───────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .hero-section h1 {
        font-size: clamp(26px, 7vw, 36px);
        line-height: 1.15;
    }

    .hero-section h2,
    .hero-section__lead {
        font-size: 15px;
    }

    .hero-section {
        padding: 60px 5%;
        min-height: auto;
    }

    .logo img {
        height: 34px;
    }

    .btn-hero-primary,
    .btn-hero-outline {
        font-size: 14px;
        padding: 14px 24px;
    }

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

    .footer-meta {
        font-size: 12px;
    }
}

/* ═══════════════════════════════════════════════════════
   2026-05-16 UI 升級：字體、動態、Stats Bar、客戶分享、浮動 WA
═══════════════════════════════════════════════════════ */

/* --- 卡片及按鈕 Hover 動態效果 --- */
.trust-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.trust-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 44px rgba(139, 90, 43, 0.14);
    border-color: #C4A882;
}

.btn-hero-primary,
.btn-services-whatsapp {
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.btn-hero-primary:hover,
.btn-services-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(139, 90, 43, 0.42);
}

.btn-mission-outline {
    transition: background 0.2s ease, color 0.2s ease, transform 0.18s ease;
}
.btn-mission-outline:hover {
    background: var(--gold-accent);
    color: var(--deep-dark);
    transform: translateY(-2px);
}

.service-card__link {
    transition: color 0.18s ease, border-color 0.18s ease;
}
.service-card__link:hover {
    color: var(--dark-brown);
    border-bottom-color: var(--dark-brown);
}

/* --- 數字統計條 (Stats Bar) --- */
.stats-bar {
    background: var(--deep-dark);
    padding: 0;
    overflow: hidden;
    border-top: 1px solid rgba(212, 167, 106, 0.15);
}

.stats-bar__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: stretch;
    flex-wrap: wrap;
    padding: 0 5%;
}

.stats-bar__item {
    flex: 1 1 160px;
    padding: 42px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
}

.stats-bar__num {
    font-family: var(--font-heading);
    font-size: var(--text-h2-lg);
    font-weight: 600;
    background: linear-gradient(135deg, #C5A26B 0%, #F0C878 50%, #B8905A 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
    letter-spacing: -0.5px;
}

.stats-bar__label {
    font-size: 11px;
    color: rgba(210, 190, 162, 0.65);
    letter-spacing: 1px;
    line-height: 1.5;
    font-family: var(--font-body);
    font-weight: 300;
}

.stats-bar__divider {
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(184, 144, 90, 0.4), transparent);
    margin: 24px 0;
    flex-shrink: 0;
    align-self: stretch;
}

@media (max-width: 768px) {
    /* Stats Bar 手機版：2 × 2 card grid，最後一項全寬居中 */
    .stats-bar__inner {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 8px 0 0;
        gap: 0;
    }
    .stats-bar__divider {
        display: none;
    }
    .stats-bar__item {
        flex: unset;
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 28px 16px;
        gap: 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        border-right: none;
    }
    /* 左欄項目加右邊框做分隔線 */
    .stats-bar__item:nth-child(odd) {
        border-right: 1px solid rgba(255, 255, 255, 0.07);
    }
    /* 最後一項（港九新界）橫跨兩欄，居中顯示 */
    .stats-bar__item:last-child {
        grid-column: span 2;
        border-bottom: none;
        border-right: none;
        padding-bottom: 32px;
    }
    .stats-bar__num {
        font-family: var(--font-body);
        font-size: 22px;
        font-weight: 700;
        min-width: unset;
        text-align: center;
        flex-shrink: unset;
        letter-spacing: 0.5px;
        line-height: 1.1;
    }
    .stats-bar__label {
        text-align: center;
        font-size: 11px;
        letter-spacing: 0.8px;
        line-height: 1.5;
    }
}

/* --- 客戶分享區 (Testimonials) — 暖白卡片風格 --- */
.testimonials-section {
    padding: 100px 5%;
    background: #FBF8F4;
}

.testimonials-section__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.testimonials-section__header {
    text-align: center;
    margin-bottom: 60px;
}

.testimonials-section__header h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 600;
}

.testimonials-section__header .accent-rule {
    background: var(--primary-brown);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    align-items: start;
}

.testimonial-card {
    background: #FEFAF5;
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 34px 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
}
.testimonial-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(184,144,90,0.18), rgba(240,200,120,0.3), rgba(184,144,90,0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(122, 85, 53, 0.1);
}

.testimonial-card--highlight {
    border-color: var(--gold-accent);
    background: #FFF8F0;
}

.testimonial-card__badge {
    display: inline-block;
    background: var(--primary-brown);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1.2px;
    padding: 4px 13px;
    border-radius: 20px;
    text-transform: uppercase;
    width: fit-content;
}

.testimonial-card__quote {
    font-family: var(--font-heading);
    font-size: clamp(48px, 6vw, 56px);
    font-style: italic;
    background: linear-gradient(135deg, #1C1410 0%, #7A5535 50%, #3D2410 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 0.55;
    flex-shrink: 0;
}

.testimonial-card__text {
    font-size: 15px;
    line-height: 1.85;
    color: #3D3530;
    margin: 0;
    flex: 1;
    font-style: italic;
}

.testimonial-card__meta {
    border-top: 1px solid #EAD9C6;
    padding-top: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-card__avatar {
    flex-shrink: 0;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, #C5A26B, #7A5535);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.testimonial-card__meta-text {
    flex: 1;
    min-width: 0;
}

.testimonial-card__stars {
    background: linear-gradient(90deg, #C5A26B, #F0C878, #B8905A);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 3px;
    display: block;
}

.testimonial-card__author {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 0;
}

.testimonial-card__piano {
    font-size: 12px;
    color: var(--primary-brown);
    margin: 0;
    font-style: italic;
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .testimonials-section {
        padding: 70px 5%;
    }
}

/* ═══════════════════════════════════════════════════════
   2026-05 全站手機版修復：Grid 溢出、服務頁 Hero 遮罩、字體
═══════════════════════════════════════════════════════ */

/* --- 服務頁 Hero 手機端深色遮罩：防止漸變透明右側影響文字可讀性 --- */
/* 適用：piano-tuning（.ptusr-hero）及所有加了 .svc-hero class 的服務頁 hero */
.ptusr-hero,
.svc-hero {
    position: relative;
}

@media (max-width: 768px) {
    /* 1. 服務頁 Hero：加全覆蓋半透明遮罩層（不影響原有 background-image） */
    .ptusr-hero::before,
    .svc-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: rgba(26, 18, 8, 0.58);
        z-index: 1;
        pointer-events: none;
    }
    .ptusr-hero-inner {
        z-index: 2;
        position: relative;
    }
    .svc-hero > div {
        z-index: 2;
        position: relative;
    }
    /* Hero 手機端縮小 padding，避免內容擠壓 */
    .ptusr-hero,
    .svc-hero {
        padding-left: 5% !important;
        padding-right: 5% !important;
    }
    /* Hero h1 手機字體 */
    .ptusr-hero-h1 {
        font-size: clamp(26px, 7vw, 38px);
        letter-spacing: -0.5px;
    }
    /* Hero lead text 手機字體 */
    .ptusr-hero-lead {
        font-size: clamp(15px, 4vw, 18px);
        margin-bottom: 36px;
    }
    /* Hero CTA 按鈕手機端適配 */
    .ptusr-hero-wa {
        padding: 16px 28px;
        font-size: 14px;
    }

    /* 2. CSS Grid 溢出修正：minmax(400/450px) → 手機單欄 */
    .trust-grid,
    .about-certs-grid,
    .abusr-certs-grid {
        grid-template-columns: 1fr !important;
    }

    /* 3. ptusr 內頁 section 標題手機縮小 */
    .ptusr-intro-h2,
    .ptusr-why-h2,
    .ptusr-process-h2,
    .ptusr-dehumid-h2,
    .ptusr-brands-h2 {
        font-size: 22px;
    }

    /* 4. ptusr 內頁水平 padding 收窄，防止內容太靠邊 */
    .ptusr-intro-left,
    .ptusr-intro-right {
        padding: 36px 28px;
    }

    /* 5. Timeline 步驟：手機端確保 badge 在容器範圍內 */
    .ptusr-process-tl-shell {
        padding-left: 40px;
    }
    .ptusr-tl-badge {
        left: -40px;
        width: 26px;
        height: 26px;
        font-size: 11px;
    }
    .ptusr-tl-line {
        left: -27px;
    }

    /* 6. Footer CTA 區手機端堆疊 */
    .ptusr-footer-row {
        gap: 36px;
    }

    /* 7. Voicing guide 裝飾性引文卡片：手機端隱藏，防止溢出水平捲動 */
    .voicing-quote-badge {
        display: none;
    }
}

/* --- 浮動 WhatsApp 按鈕（手機版） --- */
.float-wa {
    display: none;
    position: fixed;
    bottom: 22px;
    right: 18px;
    z-index: 9999;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, #128c7e 0%, #25d366 100%);
    box-shadow: 0 6px 22px rgba(37, 211, 102, 0.5);
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.float-wa:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.6);
}

.float-wa svg {
    width: 30px;
    height: 30px;
}

@media (max-width: 768px) {
    .float-wa {
        display: flex;
    }
}