/* ============================================
   刘氏推拿 · 大隐隐于市
   Design: Editorial + Traditional Chinese
   Dial: VARIANCE 7 / MOTION 4 / DENSITY 3
   ============================================ */

/* --- Tokens --- */
:root {
    --ink: #1c1917;
    --ink-soft: #44403c;
    --cream: #faf8f5;
    --cream-warm: #f5f0e8;
    --paper: #ede8df;
    --gold: #a68a64;
    --gold-light: #c4aa7d;
    --red: #b91c1c;
    --red-dark: #991b1b;
    --red-soft: rgba(185, 28, 28, 0.08);
    --jade: #3f6b52;
    --jade-soft: rgba(63, 107, 82, 0.08);
    --radius: 2px;
    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --font-display: 'Ma Shan Zheng', cursive;
    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
    --font-accent: 'ZCOOL XiaoWei', serif;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-serif);
    background: var(--cream);
    color: var(--ink);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; border: none; background: none; cursor: pointer; }
ul { list-style: none; }

/* --- Noise overlay --- */
.noise {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Section Head --- */
.section-head {
    text-align: center;
    margin-bottom: 3.5rem;
}
.section-head__tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--red);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.section-head__title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--ink);
    letter-spacing: 0.08em;
    line-height: 1.3;
}
.section-head--light .section-head__tag { color: var(--gold-light); }
.section-head--light .section-head__title { color: var(--cream); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: var(--radius);
    transition: all 0.3s var(--ease);
}
.btn--primary {
    background: var(--red);
    color: #fff;
}
.btn--primary:hover {
    background: var(--red-dark);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(185, 28, 28, 0.25);
}
.btn--ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--ink);
}
.btn--ghost:hover {
    background: var(--ink);
    color: #fff;
}
.btn--full { width: 100%; }

/* --- Reveal animation --- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    transition: all 0.4s var(--ease);
}
.nav.scrolled {
    background: rgba(250, 248, 245, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}
.nav__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    letter-spacing: 0.12em;
}
.nav__links {
    display: flex;
    gap: 2rem;
}
.nav__links a {
    font-size: 0.85rem;
    color: var(--ink-soft);
    letter-spacing: 0.08em;
    position: relative;
    padding: 0.25rem 0;
    transition: color 0.3s;
}
.nav__links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--red);
    transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--red); }
.nav__links a:hover::after { width: 100%; }
.nav__phone {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--red);
}
.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.nav__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    transition: all 0.3s;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding: 6rem 2rem 4rem;
    overflow: hidden;
}
.hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}
.hero__ink {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 70% 30%, var(--red-soft) 0%, transparent 50%),
        radial-gradient(ellipse at 30% 70%, var(--jade-soft) 0%, transparent 50%),
        linear-gradient(180deg, var(--cream) 0%, var(--cream-warm) 100%);
}
.hero__content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.hero__tag {
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}
.hero__title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 8vw, 6rem);
    line-height: 1;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}
.hero__sub {
    font-family: var(--font-accent);
    font-size: clamp(1rem, 2vw, 1.3rem);
    color: var(--gold);
    letter-spacing: 0.5em;
    margin-bottom: 1.5rem;
}
.hero__line {
    width: 60px;
    height: 2px;
    background: var(--red);
    margin-bottom: 1.5rem;
}
.hero__desc {
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 2;
    margin-bottom: 2rem;
}
.hero__cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.hero__visual {
    position: relative;
    display: flex;
    justify-content: center;
}
.hero__portrait {
    position: relative;
    width: 100%;
    max-width: 400px;
}
.hero__portrait img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    filter: grayscale(20%) contrast(1.05);
}
.hero__portrait-border {
    position: absolute;
    inset: -12px;
    border: 1px solid var(--gold-light);
    opacity: 0.4;
    pointer-events: none;
}
.hero__stat {
    position: absolute;
    background: #fff;
    padding: 1rem 1.25rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}
.hero__stat--1 { bottom: 20%; left: -5%; }
.hero__stat--2 { top: 15%; right: -5%; }
.hero__stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--red);
    line-height: 1;
}
.hero__stat-label {
    font-size: 0.7rem;
    color: var(--ink-soft);
    letter-spacing: 0.1em;
}

/* ============================================
   SERVICES (Bento)
   ============================================ */
.services {
    padding: 6rem 2rem;
    background: #fff;
}
.bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
.bento__item {
    padding: 2rem;
    background: var(--cream);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.4s var(--ease);
    position: relative;
}
.bento__item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: width 0.4s var(--ease);
}
.bento__item:hover::before { width: 100%; }
.bento__item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}
.bento__item--wide {
    grid-column: span 2;
}
.bento__item--accent {
    background: var(--ink);
    color: var(--cream);
}
.bento__item--accent .bento__price { color: var(--gold-light); }
.bento__icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    margin-bottom: 1.25rem;
    color: var(--red);
}
.bento__item--accent .bento__icon {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--gold-light);
}
.bento__item h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}
.bento__item p {
    font-size: 0.85rem;
    color: var(--ink-soft);
    line-height: 1.7;
    margin-bottom: 1rem;
}
.bento__item--accent p { color: rgba(250, 248, 245, 0.65); }
.bento__price {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--red);
    letter-spacing: 0.05em;
}

/* ============================================
   STORY (Editorial)
   ============================================ */
.story {
    padding: 6rem 2rem;
    background: var(--cream-warm);
}
.story__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.story__image {
    position: relative;
}
.story__image img {
    width: 100%;
    aspect-ratio: 7/9;
    object-fit: cover;
    filter: grayscale(15%);
}
.story__image-accent {
    position: absolute;
    bottom: -16px;
    right: -16px;
    width: 50%;
    height: 50%;
    border: 1px solid var(--gold-light);
    opacity: 0.3;
    pointer-events: none;
}
.story__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    line-height: 1.2;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}
.story__text p {
    font-size: 0.95rem;
    color: var(--ink-soft);
    line-height: 2;
    margin-bottom: 1rem;
}
.story__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}
.feature {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}
.feature__check {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-soft);
    color: var(--red);
    flex-shrink: 0;
}
.feature strong {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
}
.feature span {
    font-size: 0.75rem;
    color: var(--ink-soft);
}

/* ============================================
   SPACE (Masonry)
   ============================================ */
.space {
    padding: 6rem 2rem;
    background: #fff;
}
.masonry {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 200px;
    gap: 0.75rem;
}
.masonry__item {
    position: relative;
    overflow: hidden;
    background: var(--paper);
}
.masonry__item--tall { grid-row: span 2; }
.masonry__item--wide { grid-column: span 2; }
.masonry__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}
.masonry__item:hover img { transform: scale(1.06); }
.masonry__label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 1rem 1rem;
    background: linear-gradient(to top, rgba(28, 25, 23, 0.85), transparent);
    color: var(--cream);
    font-family: var(--font-display);
    font-size: 1rem;
    letter-spacing: 0.1em;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.4s var(--ease);
}
.masonry__item:hover .masonry__label {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   WORDS (Testimonials)
   ============================================ */
.words {
    padding: 6rem 2rem;
    background: var(--ink);
}
.words__slider {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    min-height: 220px;
}
.words__item {
    display: none;
    animation: wordFade 0.5s var(--ease);
}
.words__item--active { display: block; }
@keyframes wordFade {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}
.words__quote {
    font-family: Georgia, serif;
    font-size: 4rem;
    line-height: 1;
    color: var(--gold);
    opacity: 0.25;
}
.words__item blockquote {
    font-size: 1.1rem;
    color: var(--cream);
    line-height: 2;
    margin: 0.5rem 0 1.25rem;
}
.words__item cite {
    font-style: normal;
    font-size: 0.85rem;
    color: var(--gold-light);
    letter-spacing: 0.1em;
}
.words__dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}
.words__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(250, 248, 245, 0.15);
    transition: all 0.3s;
}
.words__dot--active {
    background: var(--gold);
    transform: scale(1.4);
}

/* ============================================
   BOOK (Contact)
   ============================================ */
.book {
    padding: 6rem 2rem;
    background: var(--cream);
}
.book__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
}
.book__title {
    font-family: var(--font-display);
    font-size: 2rem;
    letter-spacing: 0.08em;
    margin-bottom: 1.5rem;
}
.book__details { display: flex; flex-direction: column; gap: 1.25rem; }
.book__detail {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.book__detail-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cream-warm);
    border: 1px solid rgba(0, 0, 0, 0.06);
    flex-shrink: 0;
    color: var(--red);
}
.book__detail strong {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    margin-bottom: 0.15rem;
}
.book__detail p {
    font-size: 0.9rem;
    color: var(--ink-soft);
    line-height: 1.6;
}

/* Form */
.book__form {
    background: #fff;
    padding: 2rem;
    border: 1px solid rgba(0, 0, 0, 0.06);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 0.35rem;
    letter-spacing: 0.05em;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.7rem 0.875rem;
    border: 1px solid rgba(0, 0, 0, 0.12);
    background: var(--cream);
    font-family: var(--font-serif);
    font-size: 0.9rem;
    color: var(--ink);
    border-radius: var(--radius);
    transition: border-color 0.3s;
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--red);
}
.form-group textarea {
    height: 90px;
    resize: none;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--ink);
    padding: 2.5rem 2rem 1.25rem;
}
.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(250, 248, 245, 0.08);
}
.footer__logo {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--cream);
    letter-spacing: 0.12em;
}
.footer__tagline {
    font-size: 0.7rem;
    color: rgba(250, 248, 245, 0.35);
    letter-spacing: 0.15em;
    margin-top: 0.25rem;
}
.footer__nav {
    display: flex;
    gap: 1.5rem;
}
.footer__nav a {
    font-size: 0.8rem;
    color: rgba(250, 248, 245, 0.4);
    transition: color 0.3s;
}
.footer__nav a:hover { color: var(--gold-light); }
.footer__copy {
    text-align: center;
    padding-top: 1.25rem;
    font-size: 0.7rem;
    color: rgba(250, 248, 245, 0.2);
    letter-spacing: 0.08em;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .nav__links, .nav__phone { display: none; }
    .nav__toggle { display: flex; }

    .hero__content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }
    .hero__line { margin: 0 auto 1.5rem; }
    .hero__cta { justify-content: center; }
    .hero__portrait { max-width: 300px; margin: 0 auto; }
    .hero__stat--1 { left: 0; bottom: 10%; }
    .hero__stat--2 { right: 0; top: 10%; }

    .bento { grid-template-columns: 1fr 1fr; }
    .bento__item--wide { grid-column: span 2; }

    .story__grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .story__image { max-width: 400px; margin: 0 auto; }

    .masonry { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
    .masonry__item--tall { grid-row: span 1; }
    .masonry__item--wide { grid-column: span 2; }

    .book__grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 600px) {
    .bento { grid-template-columns: 1fr; }
    .bento__item--wide { grid-column: span 1; }

    .masonry { grid-template-columns: 1fr; grid-auto-rows: 160px; }
    .masonry__item--wide { grid-column: span 1; }

    .form-row { grid-template-columns: 1fr; }

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

    .footer__inner { flex-direction: column; gap: 1rem; text-align: center; }

    .hero__stat { position: relative; bottom: auto; left: auto; right: auto; top: auto; display: inline-block; margin: 0.5rem; }
    .hero__visual { display: flex; flex-wrap: wrap; justify-content: center; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb { background: var(--gold); border-radius: 3px; }

/* --- Selection --- */
::selection { background: rgba(185, 28, 28, 0.15); }

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}