/* ============================================================
   昱創整合行銷 — Architectural CSS System
   Digital Brutalism meets High-Fashion Elegance
   ============================================================ */

/* === LAYER ARCHITECTURE === */
@layer reset, tokens, base, layout, components, sections, animations, utilities;

/* === RESET === */
@layer reset {
  *, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: auto; /* Lenis handles smooth scroll */
  }

  body {
    overflow-x: hidden;
  }

  a {
    text-decoration: none;
    color: inherit;
  }

  button {
    border: none;
    background: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
  }

  ul, ol {
    list-style: none;
  }

  img, svg {
    display: block;
    max-width: 100%;
  }

  input, textarea {
    border: none;
    background: none;
    font: inherit;
    color: inherit;
    outline: none;
    width: 100%;
  }

  textarea {
    resize: vertical;
  }

  /* Skip to content (A11Y) */
  .skip-to-content {
    position: absolute;
    top: -100%;
    left: 1rem;
    padding: 0.6rem 1.2rem;
    background: #c8a2ff;
    color: #0b0a0f;
    font-family: sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 0 0 8px 8px;
    z-index: 99999;
    text-decoration: none;
    transition: top 0.2s;
  }

  .skip-to-content:focus {
    top: 0;
    outline: 2px solid #d4a574;
    outline-offset: 2px;
  }
}

/* === DESIGN TOKENS === */
@layer tokens {
  :root {
    /* Colors — Warm Obsidian Beauty Palette */
    --c-void: #0B0A0F;
    --c-graphite: #1B1921;
    --c-ash: #2E2A35;
    --c-iron: #5A5265;
    --c-silver: #B8B0C4;
    --c-alabaster: #F5F0EB;
    --c-white: #FFFFFF;

    /* Accent — Rose Gold & Blossom */
    --c-accent-1: #C8A2FF;
    --c-accent-2: #D4A574;
    --c-accent-3: #F0C9D4;
    --c-accent-gradient: linear-gradient(135deg, var(--c-accent-1), var(--c-accent-2));
    --c-accent-gradient-warm: linear-gradient(135deg, var(--c-accent-2), var(--c-accent-3));

    /* Typography Scale */
    --f-grotesk: 'Space Grotesk', sans-serif;
    --f-noto-sans: 'Noto Sans TC', sans-serif;
    --f-cormorant: 'Cormorant Garamond', serif;
    --f-noto-serif: 'Noto Serif TC', serif;
    --f-mono: 'JetBrains Mono', monospace;
    --f-playfair: 'Playfair Display', serif;

    /* Fluid sizes */
    --fs-hero: clamp(3.5rem, 10vw, 10rem);
    --fs-h1: clamp(2.5rem, 6vw, 6rem);
    --fs-h2: clamp(2rem, 4vw, 4rem);
    --fs-h3: clamp(1.5rem, 2.5vw, 2.5rem);
    --fs-body: clamp(0.95rem, 1.1vw, 1.15rem);
    --fs-small: clamp(0.75rem, 0.85vw, 0.875rem);
    --fs-mono: clamp(0.65rem, 0.75vw, 0.8rem);

    /* Spacing */
    --sp-xs: clamp(0.5rem, 1vw, 1rem);
    --sp-sm: clamp(1rem, 2vw, 2rem);
    --sp-md: clamp(2rem, 4vw, 4rem);
    --sp-lg: clamp(4rem, 8vw, 8rem);
    --sp-xl: clamp(6rem, 12vw, 12rem);
    --sp-page: clamp(1.5rem, 5vw, 6rem);

    /* Timing */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);

    /* Z-index */
    --z-base: 1;
    --z-nav: 100;
    --z-menu: 200;
    --z-cursor: 9000;
    --z-loader: 10000;
  }
}

/* === BASE === */
@layer base {
  html {
    font-size: 16px;
    background: var(--c-void);
    color: var(--c-alabaster);
    scroll-behavior: auto;
  }

  body {
    font-family: var(--f-cormorant);
    font-weight: 300;
    font-size: var(--fs-body);
    line-height: 1.7;
    background:
      radial-gradient(ellipse 80% 60% at 10% 20%, rgba(140, 70, 160, 0.08) 0%, transparent 60%),
      radial-gradient(ellipse 60% 80% at 90% 80%, rgba(180, 100, 130, 0.06) 0%, transparent 55%),
      radial-gradient(ellipse 50% 50% at 50% 50%, rgba(200, 162, 255, 0.03) 0%, transparent 70%),
      linear-gradient(180deg, #0b0a0f 0%, #0e0a12 25%, #0b0a10 50%, #0f0a13 75%, #0b0a0f 100%);
    color: var(--c-silver);
  }

  /* Custom cursor disabled — use default system cursor */
  .cursor { display: none !important; }

  ::selection {
    background: var(--c-accent-1);
    color: var(--c-void);
  }

  /* Screen-reader only — visually hidden but accessible */
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  h1, h2, h3, h4, h5, h6 {
    font-family: var(--f-grotesk);
    font-weight: 700;
    color: var(--c-alabaster);
    line-height: 1.05;
    letter-spacing: -0.04em;
    text-transform: uppercase;
  }
}

/* === LAYOUT === */
@layer layout {
  .main {
    position: relative;
    z-index: var(--z-base);
  }

  .section-title {
    font-size: var(--fs-h2);
    margin-bottom: var(--sp-md);
  }

  .label-mono {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    font-weight: 400;
    color: var(--c-iron);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-block;
  }
}

/* === GEOMETRIC CANVAS === */
@layer components {
  #geoCanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    filter: blur(0.5px);
    opacity: 0;
    transition: opacity 1.5s ease;
  }

  #geoCanvas.active {
    opacity: 1;
  }
}

/* === ORGANIC BLOB SHAPES === */
@layer components {
  .geo-blobs {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
  }

  .geo-blob {
    position: absolute;
    opacity: 0;
    transition: opacity 2s ease;
  }

  .geo-blobs.active .geo-blob {
    opacity: 1;
  }

  .geo-blob--1 {
    width: 55vw;
    height: 55vw;
    top: -10%;
    right: -5%;
    animation: blobDrift1 40s ease-in-out infinite;
    will-change: transform;
  }

  .geo-blob--2 {
    width: 50vw;
    height: 50vw;
    bottom: -8%;
    left: -8%;
    animation: blobDrift2 50s ease-in-out infinite;
    will-change: transform;
  }

  @keyframes blobDrift1 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    25%       { transform: translate(-3vw, 4vh) scale(1.04) rotate(6deg); }
    50%       { transform: translate(2vw, -5vh) scale(0.96) rotate(-4deg); }
    75%       { transform: translate(4vw, 2vh) scale(1.02) rotate(3deg); }
  }

  @keyframes blobDrift2 {
    0%, 100% { transform: translate(0, 0) scale(1) rotate(0deg); }
    30%       { transform: translate(4vw, -3vh) scale(1.06) rotate(-5deg); }
    60%       { transform: translate(-2vw, 6vh) scale(0.94) rotate(8deg); }
  }
}

/* === SECTION DIVIDERS === */
@layer components {
  .section-divider {
    width: 100%;
    overflow: hidden;
    line-height: 0;
    pointer-events: none;
    position: relative;
    z-index: 1;
  }

  .section-divider svg {
    display: block;
    width: 100%;
    height: 60px;
  }

  .section-divider--top {
    margin-bottom: -2px;
  }

  .section-divider--bottom {
    margin-top: -2px;
  }
}

/* === GRAIN OVERLAY === */
@layer components {
  .grain-overlay {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    filter: url(#grain);
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.6s ease;
  }

  .grain-overlay.active {
    opacity: 1;
  }
}

/* === AMBIENT GRADIENT MESH === */
@layer components {
  .ambient {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
  }

  .ambient__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0;
    transition: opacity 1.5s ease;
    will-change: transform;
  }

  .ambient.active .ambient__orb {
    opacity: 1;
  }

  /* Top-left: warm rose-violet glow */
  .ambient__orb--1 {
    width: 60vw;
    height: 60vh;
    top: -15%;
    left: -15%;
    background: radial-gradient(circle, rgba(160, 80, 180, 0.12) 0%, rgba(140, 60, 160, 0.06) 40%, transparent 70%);
    animation: orbFloat1 25s ease-in-out infinite;
  }

  /* Bottom-right: rose gold warm wash */
  .ambient__orb--2 {
    width: 50vw;
    height: 55vh;
    bottom: -10%;
    right: -10%;
    background: radial-gradient(circle, rgba(200, 130, 100, 0.10) 0%, rgba(180, 100, 80, 0.04) 40%, transparent 70%);
    animation: orbFloat2 30s ease-in-out infinite;
  }

  /* Center: lavender-blush accent */
  .ambient__orb--3 {
    width: 40vw;
    height: 40vh;
    top: 40%;
    left: 30%;
    background: radial-gradient(circle, rgba(200, 162, 255, 0.06) 0%, rgba(212, 165, 116, 0.03) 50%, transparent 70%);
    animation: orbFloat3 20s ease-in-out infinite;
  }

  /* Roaming accent: blossom blush shimmer */
  .ambient__orb--4 {
    width: 35vw;
    height: 35vh;
    top: 10%;
    right: 20%;
    background: radial-gradient(circle, rgba(240, 180, 200, 0.07) 0%, rgba(200, 140, 160, 0.03) 50%, transparent 70%);
    animation: orbFloat4 35s ease-in-out infinite;
  }

  @keyframes orbFloat1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(5vw, 8vh) scale(1.1); }
    50% { transform: translate(-3vw, 15vh) scale(0.95); }
    75% { transform: translate(8vw, 3vh) scale(1.05); }
  }

  @keyframes orbFloat2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(-8vw, -5vh) scale(1.08); }
    50% { transform: translate(4vw, -12vh) scale(0.92); }
    75% { transform: translate(-5vw, -3vh) scale(1.05); }
  }

  @keyframes orbFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(10vw, -8vh) scale(1.15); }
    66% { transform: translate(-8vw, 5vh) scale(0.9); }
  }

  @keyframes orbFloat4 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    20% { transform: translate(-12vw, 10vh) scale(1.1); }
    40% { transform: translate(5vw, 20vh) scale(0.85); }
    60% { transform: translate(15vw, 5vh) scale(1.05); }
    80% { transform: translate(-5vw, -8vh) scale(0.95); }
  }
}

/* === CUSTOM CURSOR === */
@layer components {
  .cursor {
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-cursor);
    pointer-events: none;
    mix-blend-mode: difference;
  }

  .cursor__dot {
    width: 8px;
    height: 8px;
    background: var(--c-alabaster);
    border-radius: 50%;
    position: absolute;
    top: -4px;
    left: -4px;
    transition: transform 0.15s var(--ease-out-expo), opacity 0.2s;
  }

  .cursor__ring {
    width: 40px;
    height: 40px;
    border: 1px solid var(--c-alabaster);
    border-radius: 50%;
    position: absolute;
    top: -20px;
    left: -20px;
    opacity: 0.4;
    transition: width 0.4s var(--ease-out-expo),
                height 0.4s var(--ease-out-expo),
                top 0.4s var(--ease-out-expo),
                left 0.4s var(--ease-out-expo),
                opacity 0.3s,
                border-color 0.3s;
  }

  .cursor__label {
    position: absolute;
    top: 20px;
    left: 20px;
    font-family: var(--f-mono);
    font-size: 10px;
    color: var(--c-alabaster);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0;
    white-space: nowrap;
    transition: opacity 0.3s;
  }

  /* Cursor states */
  .cursor.is-link .cursor__ring {
    width: 60px;
    height: 60px;
    top: -30px;
    left: -30px;
    opacity: 0.6;
    border-color: var(--c-accent-1);
  }

  .cursor.is-button .cursor__ring {
    width: 80px;
    height: 80px;
    top: -40px;
    left: -40px;
    opacity: 0.8;
    border-color: var(--c-accent-2);
  }

  .cursor.is-button .cursor__dot {
    transform: scale(0.5);
  }

  .cursor.is-view .cursor__ring {
    width: 100px;
    height: 100px;
    top: -50px;
    left: -50px;
    opacity: 0.6;
    background: rgba(200, 162, 255, 0.08);
    border-color: var(--c-accent-1);
  }

  .cursor.is-view .cursor__label {
    opacity: 1;
    top: -6px;
    left: 50px;
  }

  .cursor.is-text .cursor__dot {
    width: 2px;
    height: 24px;
    border-radius: 1px;
    top: -12px;
    left: -1px;
  }

  .cursor.is-text .cursor__ring {
    opacity: 0;
  }

  .cursor.is-hidden .cursor__dot,
  .cursor.is-hidden .cursor__ring {
    opacity: 0;
    transform: scale(0);
  }
}

/* === LOADER === */
@layer components {
  .loader {
    position: fixed;
    inset: 0;
    background:
      radial-gradient(ellipse 50% 50% at 50% 50%, rgba(100, 40, 120, 0.18) 0%, transparent 60%),
      radial-gradient(ellipse 30% 30% at 70% 30%, rgba(180, 100, 130, 0.06) 0%, transparent 50%),
      linear-gradient(180deg, #0b0a0f 0%, #0e0a14 50%, #0b0a0f 100%);
    z-index: var(--z-loader);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2rem;
  }

  .loader__line {
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  .loader__text {
    display: flex;
    gap: 0.15em;
    font-family: var(--f-grotesk);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--c-alabaster);
    opacity: 0;
  }

  .loader__char {
    display: inline-block;
    background: linear-gradient(135deg, var(--c-alabaster) 30%, var(--c-accent-1) 70%, var(--c-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

}

/* === NAVIGATION === */
@layer components {
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-sm) var(--sp-page);
    z-index: var(--z-nav);
    mix-blend-mode: difference;
  }

  .nav__logo {
    font-family: var(--f-grotesk);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--c-alabaster);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    position: relative;
  }

  .nav__logo-text {
    background: linear-gradient(135deg, var(--c-alabaster) 40%, var(--c-accent-1) 70%, var(--c-accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .nav__links {
    display: flex;
    gap: var(--sp-sm);
  }

  .nav__link {
    display: flex;
    align-items: baseline;
    gap: 0.5em;
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-silver);
    letter-spacing: 0.05em;
    transition: color 0.3s;
    position: relative;
  }

  .nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    transition: width 0.4s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .nav__link:hover::after { width: 100%; }
    .nav__link:hover { color: var(--c-alabaster); }
  }

  .nav__link[aria-current="page"]::after { width: 100%; }
  .nav__link[aria-current="page"] { color: var(--c-alabaster); }

  .nav__link-index {
    font-size: 0.6em;
    opacity: 0.5;
  }

  .nav__menu-btn {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px;
    z-index: calc(var(--z-menu) + 1);
    background: transparent;
    border: none;
  }
  
  .nav__menu-btn:active {
    opacity: 0.7;
  }

  .nav__menu-icon {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
    height: 19px;
    justify-content: space-between;
    position: relative;
  }

  .nav__menu-line {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--c-alabaster);
    transition: all 0.3s var(--ease-out-expo);
    border-radius: 2px;
    transform-origin: center;
  }

  .nav__menu-text {
    font-size: 10px;
    color: var(--c-alabaster);
    letter-spacing: 1.5px;
    font-weight: 500;
    margin-top: 2px;
    text-transform: uppercase;
  }

  /* Hamburger to X animation */
  .nav__menu-btn.is-active .nav__menu-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav__menu-btn.is-active .nav__menu-line:nth-child(2) {
    opacity: 0;
    transform: scale(0);
  }

  .nav__menu-btn.is-active .nav__menu-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  @media (max-width: 900px) {
    .nav__links { display: none; }
    .nav__menu-btn { display: flex; }
  }

  /* Menu overlay */
  .menu-overlay {
    position: fixed;
    inset: 0;
    background:
      radial-gradient(ellipse 50% 50% at 50% 50%, rgba(100, 40, 120, 0.22) 0%, transparent 60%),
      radial-gradient(ellipse 30% 40% at 80% 20%, rgba(180, 100, 130, 0.06) 0%, transparent 50%),
      linear-gradient(180deg, #0b0a0f 0%, #130a18 50%, #0b0a0f 100%);
    z-index: var(--z-menu);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s var(--ease-in-out);
  }

  .menu-overlay.is-open {
    opacity: 1;
    pointer-events: all;
  }

  .menu-overlay__inner {
    display: flex;
    flex-direction: column;
    gap: var(--sp-md);
  }

  .menu-overlay__link {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    font-family: var(--f-grotesk);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--c-alabaster);
    letter-spacing: -0.03em;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(40px);
  }

  .menu-overlay.is-open .menu-overlay__link {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s var(--ease-out-expo), transform 0.3s var(--ease-out-expo);
  }

  .menu-overlay.is-open .menu-overlay__link:nth-child(1) { transition-delay: 0.04s; }
  .menu-overlay.is-open .menu-overlay__link:nth-child(2) { transition-delay: 0.08s; }
  .menu-overlay.is-open .menu-overlay__link:nth-child(3) { transition-delay: 0.12s; }
  .menu-overlay.is-open .menu-overlay__link:nth-child(4) { transition-delay: 0.16s; }
  .menu-overlay.is-open .menu-overlay__link:nth-child(5) { transition-delay: 0.20s; }
  .menu-overlay.is-open .menu-overlay__link:nth-child(6) { transition-delay: 0.24s; }

  .menu-overlay__index {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
  }

  .menu-overlay__sub {
    font-family: var(--f-cormorant);
    font-size: var(--fs-small);
    font-weight: 300;
    color: var(--c-iron);
    text-transform: none;
    letter-spacing: 0.05em;
  }
}

/* === HERO SECTION === */
@layer sections {
  .hero {
    height: 100vh;
    height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-bottom: 10vh;
    background:
      radial-gradient(ellipse 70% 50% at 50% 40%, rgba(140, 60, 180, 0.10) 0%, transparent 60%),
      radial-gradient(ellipse 40% 60% at 80% 70%, rgba(180, 100, 120, 0.06) 0%, transparent 50%),
      radial-gradient(ellipse 50% 40% at 20% 80%, rgba(212, 165, 116, 0.04) 0%, transparent 50%),
      transparent;
  }

  .hero__line {
    position: absolute;
    top: 44%;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    transform: translateY(-50%);
    opacity: 0;
  }

  .hero__scatter {
    display: flex;
    gap: 0;
    z-index: 2;
  }

  .hero__char {
    font-family: var(--f-noto-sans);
    font-weight: 900;
    font-size: var(--fs-hero);
    color: var(--c-alabaster);
    display: inline-block;
    opacity: 0;
    will-change: transform, opacity;
  }

  .hero__tagline {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--f-playfair);
    font-size: clamp(1rem, 1.55vw, 1.55rem);
    font-weight: 400;
    font-style: italic;
    color: var(--c-silver);
    letter-spacing: 0.12em;
    opacity: 0;
    z-index: 2;
  }

  .hero__tagline-line {
    white-space: nowrap;
    min-height: 1.6em;
  }

  .hero__tagline-text {
    font-family: var(--f-playfair);
    font-weight: 400;
    font-style: italic;
  }

  .hero__tagline-cursor {
    animation: blink 1s step-end infinite;
    color: var(--c-accent-1);
    font-weight: 100;
    opacity: 0;
    transition: opacity 0.15s;
  }

  @keyframes blink {
    50% { opacity: 0; }
  }

  @media (max-width: 768px) {
    .hero {
      padding-bottom: 6vh;
    }
    .hero__tagline {
      bottom: 31%;
      font-size: clamp(0.9rem, 3.7vw, 1.15rem);
      gap: 0.35rem;
    }
    .hero__scroll-hint {
      bottom: 16%;
    }
    .hero__h1 {
      bottom: 3%;
      font-size: 0.6rem;
      letter-spacing: 0.25em;
    }
  }

  .hero__scroll-hint {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    z-index: 2;
  }

  .hero__scroll-line {
    width: 1px;
    height: 40px;
    background: var(--c-iron);
    display: block;
    position: relative;
    overflow: hidden;
  }

  .hero__scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--c-accent-gradient);
    animation: scrollPulse 2s ease-in-out infinite;
  }

  @keyframes scrollPulse {
    0% { top: -100%; }
    50% { top: 100%; }
    100% { top: 100%; }
  }

  .hero__scroll-text {
    font-family: var(--f-mono);
    font-size: 9px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-iron);
  }
}

/* === MANIFESTO === */
@layer sections {
  .manifesto {
    padding: var(--sp-xl) var(--sp-page);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background:
      radial-gradient(ellipse 60% 50% at 0% 50%, rgba(80, 40, 140, 0.07) 0%, transparent 60%),
      transparent;
  }

  .manifesto__container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
  }

  .manifesto__label {
    margin-bottom: var(--sp-lg);
  }

  .manifesto__line {
    font-size: var(--fs-h1);
    margin-bottom: var(--sp-xs);
    overflow: hidden;
  }

  .manifesto__body {
    font-size: clamp(1.05rem, 1.3vw, 1.3rem);
    max-width: 700px;
    margin-top: var(--sp-sm);
    line-height: 2;
    color: var(--c-silver);
  }
}

/* === STATS === */
@layer sections {
  .stats {
    padding: var(--sp-lg) var(--sp-page);
    border-top: 1px solid rgba(200, 162, 255, 0.1);
    border-bottom: 1px solid rgba(200, 162, 255, 0.1);
    background:
      radial-gradient(ellipse 80% 100% at 50% 50%, rgba(60, 30, 100, 0.08) 0%, transparent 60%),
      linear-gradient(180deg, rgba(15, 12, 22, 0.6) 0%, rgba(10, 10, 10, 0.3) 100%);
  }

  .stats__grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-md);
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
  }

  .stats__item {
    text-align: center;
    flex: 1;
    min-width: 180px;
  }

  .stats__number {
    font-family: var(--f-grotesk);
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 700;
    color: var(--c-alabaster);
    letter-spacing: -0.04em;
    display: inline;
  }

  .stats__plus {
    font-family: var(--f-grotesk);
    font-size: clamp(1.5rem, 2.5vw, 2.5rem);
    font-weight: 400;
    color: var(--c-accent-1);
    display: inline;
  }

  .stats__label {
    display: block;
    font-family: var(--f-noto-sans);
    font-size: var(--fs-small);
    font-weight: 500;
    color: var(--c-alabaster);
    margin-top: 0.5rem;
  }

  .stats__sub {
    display: block;
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
  }

  .stats__divider {
    width: 1px;
    height: 60px;
    background: var(--c-ash);
  }

  @media (max-width: 768px) {
    .stats__grid { gap: var(--sp-sm); }
    .stats__divider { display: none; }
    .stats__item { min-width: 140px; }
  }
}

/* === SERVICES PREVIEW (Home) === */
@layer sections {
  .services-preview {
    padding: var(--sp-xl) var(--sp-page);
    max-width: 1400px;
    margin: 0 auto;
  }

  .services-preview__header {
    margin-bottom: var(--sp-lg);
  }

  .services-preview__header .label-mono {
    margin-bottom: var(--sp-sm);
    display: block;
  }

  .services-preview__grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--sp-sm);
  }

  .service-card:nth-child(1) {
    grid-column: span 7;
  }

  .service-card:nth-child(2) {
    grid-column: span 5;
    margin-top: var(--sp-md);
  }

  .service-card:nth-child(3) {
    grid-column: span 5;
    margin-top: calc(var(--sp-md) * -1);
  }

  .service-card:nth-child(4) {
    grid-column: span 7;
    margin-top: var(--sp-sm);
  }

  @media (max-width: 900px) {
    .services-preview__grid {
      grid-template-columns: 1fr;
    }
    .service-card:nth-child(n) {
      grid-column: span 1;
      margin-top: 0;
    }
  }

  .service-card {
    background: rgba(27, 25, 33, 0.80);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(200, 162, 255, 0.06);
    border-radius: 16px;
    padding: var(--sp-md);
    display: flex;
    flex-direction: column;
    gap: var(--sp-sm);
    transition: background 0.4s var(--ease-out-expo),
                box-shadow 0.4s var(--ease-out-expo),
                border-color 0.4s var(--ease-out-expo),
                transform 0.4s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
  }

  .service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--c-accent-gradient);
    border-radius: 16px 16px 0 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.6s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .service-card:hover {
      background: rgba(35, 28, 45, 0.92);
      border-color: rgba(212, 165, 116, 0.18);
      box-shadow:
        0 0 40px rgba(212, 165, 116, 0.08),
        0 0 80px rgba(200, 162, 255, 0.04),
        inset 0 1px 0 rgba(240, 201, 212, 0.06);
      transform: translateY(-3px);
    }

    .service-card:hover::before {
      transform: scaleX(1);
    }
  }

  .service-card__index {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
  }

  .service-card__title {
    font-size: var(--fs-h3);
    text-transform: none;
    letter-spacing: -0.02em;
    font-family: var(--f-noto-sans);
    font-weight: 700;
    line-height: 1.2;
  }

  .service-card__desc {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-silver);
    line-height: 1.8;
    flex-grow: 1;
  }

  .service-card__arrow {
    font-size: 1.5rem;
    color: var(--c-iron);
    transition: color 0.3s, transform 0.3s var(--ease-out-expo);
    align-self: flex-end;
  }

  @media (hover: hover) {
    .service-card:hover .service-card__arrow {
      color: var(--c-accent-2);
      transform: translateX(8px);
    }
  }
}

/* === BRAND PLANS (服務方案) === */
@layer sections {
  .brand-plans {
    padding: var(--sp-xl) var(--sp-page);
    position: relative;
    background:
      radial-gradient(ellipse 60% 50% at 20% 30%, rgba(200, 162, 255, 0.06) 0%, transparent 60%),
      radial-gradient(ellipse 50% 50% at 80% 70%, rgba(212, 165, 116, 0.05) 0%, transparent 50%),
      transparent;
  }

  .brand-plans__header {
    text-align: center;
    margin-bottom: var(--sp-lg);
  }

  .brand-plans__header .label-mono {
    display: block;
    margin-bottom: var(--sp-sm);
  }

  .brand-plans__title {
    font-size: var(--fs-h2);
    font-family: var(--f-noto-sans);
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
  }

  .brand-plans__subtitle {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-h3);
    color: var(--c-silver);
    white-space: nowrap;
    margin-bottom: var(--sp-sm);
  }

  .brand-plans__desc {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-iron);
    max-width: 40ch;
    margin: 0 auto;
    line-height: 1.8;
  }

  .brand-plans__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-sm);
    align-items: start;
  }

  /* Card */
  .brand-plans__card {
    background: rgba(27, 25, 33, 0.6);
    border: 1px solid var(--c-ash);
    border-radius: 12px;
    padding: var(--sp-md) var(--sp-sm);
    position: relative;
    transition: border-color 0.4s, transform 0.4s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .brand-plans__card:hover {
      border-color: var(--c-accent-1);
      transform: translateY(-4px);
    }
  }

  /* Featured card (方案 B) */
  .brand-plans__card--featured {
    border-color: var(--c-accent-1);
    background:
      linear-gradient(180deg, rgba(200, 162, 255, 0.08) 0%, rgba(27, 25, 33, 0.6) 40%),
      rgba(27, 25, 33, 0.6);
  }

  .brand-plans__card-badge {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--c-accent-1);
    border: 1px solid var(--c-accent-1);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    margin-bottom: var(--sp-xs);
  }

  .brand-plans__card-title {
    font-family: var(--f-grotesk);
    font-size: var(--fs-h3);
    color: var(--c-alabaster);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
  }

  .brand-plans__card-name {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-silver);
    margin-bottom: var(--sp-xs);
  }

  .brand-plans__card-price {
    display: flex;
    align-items: baseline;
    gap: 0.3rem;
    margin-bottom: 0.5rem;
  }

  .brand-plans__card-currency {
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    color: var(--c-iron);
  }

  .brand-plans__card-amount {
    font-family: var(--f-grotesk);
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 600;
    background: var(--c-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .brand-plans__card-period {
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    color: var(--c-iron);
  }

  .brand-plans__card-note {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-small);
    color: var(--c-iron);
    line-height: 1.6;
    margin-bottom: 0.5rem;
  }

  .brand-plans__card-divider {
    width: 100%;
    height: 1px;
    background: var(--c-ash);
    margin: var(--sp-xs) 0;
  }

  .brand-plans__card-includes {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-small);
    color: var(--c-accent-1);
    padding: 0.6rem 0;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--c-ash);
  }

  /* Card content groups */
  .brand-plans__card-group {
    margin-bottom: var(--sp-xs);
  }

  .brand-plans__card-group-title {
    font-family: var(--f-noto-sans);
    font-size: 1.3rem;
    color: var(--c-alabaster);
    font-weight: 600;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.1rem;
  }

  .brand-plans__card-group-note {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-accent-2);
    margin-bottom: 0.4rem;
    letter-spacing: 0.05em;
  }

  .brand-plans__card-group ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .brand-plans__card-group ul li {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-small);
    color: var(--c-silver);
    line-height: 1.7;
    padding: 0.35rem 0 0.35rem 1rem;
    position: relative;
    border-bottom: 1px solid rgba(46, 42, 53, 0.5);
  }

  .brand-plans__card-group ul li:last-child {
    border-bottom: none;
  }

  .brand-plans__card-group ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.85rem;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--c-accent-1);
  }

  /* CTA button */
  .brand-plans__card-btn {
    display: block;
    text-align: center;
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--c-alabaster);
    padding: 1rem;
    border: 1px solid var(--c-ash);
    border-radius: 6px;
    margin-top: var(--sp-sm);
    transition: border-color 0.4s, background 0.4s;
  }

  @media (hover: hover) {
    .brand-plans__card-btn:hover {
      border-color: var(--c-accent-1);
      background: rgba(200, 162, 255, 0.08);
    }
  }

  .brand-plans__card--featured .brand-plans__card-btn {
    border-color: var(--c-accent-1);
    background: rgba(200, 162, 255, 0.1);
  }

  /* Responsive */
  @media (max-width: 1024px) {
    .brand-plans__grid {
      grid-template-columns: 1fr;
      max-width: 600px;
      margin: 0 auto;
      gap: var(--sp-md);
    }
  }

  /* 手機字體放大 */
  @media (max-width: 768px) {
    .brand-plans__subtitle {
      font-size: 1.35rem;
      white-space: normal;
    }

    .brand-plans__desc {
      font-size: 1.1rem;
    }

    .brand-plans__card-badge {
      font-size: 0.9rem;
    }

    .brand-plans__card-title {
      font-size: 2rem;
    }

    .brand-plans__card-name {
      font-size: 1.1rem;
    }

    .brand-plans__card-amount {
      font-size: 2.5rem;
    }

    .brand-plans__card-currency,
    .brand-plans__card-period {
      font-size: 1rem;
    }

    .brand-plans__card-note {
      font-size: 1rem;
    }

    .brand-plans__card-includes {
      font-size: 1rem;
    }

    .brand-plans__card-group-title {
      font-size: 1.32rem;
      flex-wrap: nowrap;
    }

    .brand-plans__card-group-note {
      font-size: 0.8rem;
    }

    .brand-plans__card-group ul li {
      font-size: 1rem;
      line-height: 1.8;
    }

    .brand-plans__card-btn {
      font-size: 0.875rem;
      padding: 1.1rem;
    }
  }
}

/* === CTA === */
@layer sections {
  .cta {
    padding: var(--sp-xl) var(--sp-page);
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background:
      radial-gradient(ellipse 50% 60% at 50% 50%, rgba(100, 50, 180, 0.08) 0%, transparent 60%),
      radial-gradient(ellipse 40% 40% at 70% 60%, rgba(60, 140, 200, 0.05) 0%, transparent 50%),
      transparent;
  }

  .cta__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-md);
  }

  .cta__title {
    font-size: var(--fs-h2);
    font-family: var(--f-noto-sans);
    text-transform: none;
    letter-spacing: -0.02em;
    line-height: 1.2;
  }

  .cta__btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-alabaster);
    padding: 1.2rem 2.5rem;
    border: 1px solid var(--c-ash);
    transition: border-color 0.4s;
  }

  @media (hover: hover) {
    .cta__btn:hover { border-color: var(--c-accent-1); }
  }

  .cta__btn-circle {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--c-accent-gradient);
    transition: transform 0.4s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .cta__btn:hover .cta__btn-circle { transform: scale(2); }
  }
}

/* === PAGE HERO (Interior pages) === */
@layer sections {
  .page-hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--sp-xl) var(--sp-page) var(--sp-lg);
    position: relative;
    background:
      radial-gradient(ellipse 60% 60% at 30% 70%, rgba(140, 60, 180, 0.09) 0%, transparent 60%),
      radial-gradient(ellipse 40% 50% at 80% 30%, rgba(180, 100, 120, 0.05) 0%, transparent 50%),
      transparent;
  }

  .page-hero .label-mono {
    margin-bottom: var(--sp-md);
  }

  .page-hero__title {
    display: flex;
    flex-direction: column;
  }

  .page-hero__line {
    font-size: var(--fs-h1);
    font-family: var(--f-noto-sans);
    font-weight: 900;
    text-transform: none;
    overflow: hidden;
    display: block;
  }

  .page-hero__en {
    font-family: var(--f-cormorant);
    font-size: var(--fs-body);
    font-weight: 300;
    font-style: italic;
    color: var(--c-iron);
    margin-top: var(--sp-sm);
    letter-spacing: 0.1em;
  }
}

/* === PHILOSOPHY BLOCKS === */
@layer sections {
  .phil-blocks {
    padding: var(--sp-lg) 0;
  }

  .phil-block {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--sp-lg) var(--sp-page);
    position: relative;
  }

  .phil-block:nth-child(odd) {
    background:
      radial-gradient(ellipse 50% 60% at 10% 50%, rgba(80, 40, 140, 0.06) 0%, transparent 60%),
      transparent;
  }

  .phil-block:nth-child(even) {
    background:
      radial-gradient(ellipse 50% 60% at 90% 50%, rgba(180, 100, 130, 0.06) 0%, transparent 60%),
      linear-gradient(180deg, rgba(22, 18, 28, 0.8) 0%, rgba(16, 13, 22, 0.6) 100%);
    clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
  }

  .phil-block__mask {
    overflow: hidden;
    width: 100%;
  }

  .phil-block__inner {
    max-width: 900px;
    margin: 0 auto;
  }

  .phil-block__index {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
    display: block;
    margin-bottom: var(--sp-sm);
  }

  .phil-block__title {
    font-size: var(--fs-h2);
    font-family: var(--f-noto-sans);
    font-weight: 900;
    text-transform: none;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
  }

  .phil-block__en {
    font-family: var(--f-cormorant);
    font-size: var(--fs-body);
    font-weight: 300;
    font-style: italic;
    color: var(--c-iron);
    letter-spacing: 0.1em;
  }

  .phil-block__divider {
    width: 60px;
    height: 1px;
    background: var(--c-accent-gradient);
    margin: var(--sp-sm) 0;
  }

  .phil-block__text {
    font-family: var(--f-noto-serif);
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    line-height: 2.2;
    color: var(--c-silver);
    margin-bottom: var(--sp-sm);
  }
}

/* === HORIZONTAL SCROLL SERVICES === */
@layer sections {
  .h-scroll {
    position: relative;
    overflow: hidden;
  }

  .h-scroll__track {
    display: flex;
    width: fit-content;
    will-change: transform;
  }

  .h-scroll__panel {
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-lg) var(--sp-page);
    position: relative;
    border-right: 1px solid rgba(200, 162, 255, 0.06);
  }

  .h-scroll__panel[data-service="strategy"] {
    background: radial-gradient(ellipse 50% 60% at 30% 50%, rgba(100, 50, 180, 0.07) 0%, transparent 60%);
  }

  .h-scroll__panel[data-service="digital"] {
    background: radial-gradient(ellipse 50% 60% at 70% 40%, rgba(50, 120, 180, 0.07) 0%, transparent 60%);
  }

  .h-scroll__panel[data-service="design"] {
    background: radial-gradient(ellipse 50% 60% at 50% 60%, rgba(160, 80, 200, 0.06) 0%, transparent 60%);
  }

  .h-scroll__panel[data-service="content"] {
    background: radial-gradient(ellipse 50% 60% at 30% 70%, rgba(60, 140, 180, 0.06) 0%, transparent 60%);
  }

  .h-scroll__panel[data-service="event"] {
    background: radial-gradient(ellipse 50% 60% at 70% 50%, rgba(120, 60, 200, 0.07) 0%, transparent 60%);
  }

  .h-scroll__panel-inner {
    max-width: 600px;
    width: 100%;
  }

  .h-scroll__panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--sp-md);
  }

  .h-scroll__panel-index {
    font-family: var(--f-mono);
    font-size: clamp(3rem, 5vw, 5rem);
    font-weight: 300;
    color: var(--c-ash);
    line-height: 1;
  }

  .h-scroll__panel-icon {
    width: 60px;
    height: 60px;
    color: var(--c-iron);
  }

  .h-scroll__panel-title {
    font-size: var(--fs-h3);
    font-family: var(--f-noto-sans);
    font-weight: 900;
    text-transform: none;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
  }

  .h-scroll__panel-en {
    font-family: var(--f-cormorant);
    font-size: var(--fs-small);
    font-weight: 300;
    font-style: italic;
    color: var(--c-iron);
    letter-spacing: 0.1em;
    display: block;
  }

  .h-scroll__panel-divider {
    width: 40px;
    height: 1px;
    background: var(--c-accent-gradient);
    margin: var(--sp-sm) 0;
  }

  .h-scroll__panel-list {
    margin-bottom: var(--sp-sm);
  }

  .h-scroll__panel-list li {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-silver);
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--c-ash);
    padding-left: 1rem;
    position: relative;
  }

  .h-scroll__panel-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--c-accent-1);
    transform: translateY(-50%);
  }

  .h-scroll__panel-text {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-iron);
    line-height: 1.9;
    margin-top: var(--sp-sm);
  }

  /* Progress bar */
  .h-scroll__progress {
    position: fixed;
    bottom: 2rem;
    left: var(--sp-page);
    right: var(--sp-page);
    z-index: 50;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
  }

  .h-scroll__progress.is-visible {
    opacity: 1;
  }

  .h-scroll__progress-bar {
    width: 100%;
    height: 2px;
    background: var(--c-ash);
    position: relative;
    margin-bottom: 0.75rem;
  }

  .h-scroll__progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: calc(var(--progress, 0) * 100%);
    background: var(--c-accent-gradient);
    transition: width 0.1s linear;
  }

  .h-scroll__progress-labels {
    display: flex;
    justify-content: space-between;
    font-family: var(--f-mono);
    font-size: 9px;
    color: var(--c-iron);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  @media (max-width: 768px) {
    .h-scroll__track {
      flex-direction: column;
      width: 100%;
    }
    .h-scroll__panel {
      width: 100%;
      height: auto;
      min-height: auto;
      padding: var(--sp-lg) var(--sp-sm);
      border-right: none;
      border-bottom: 1px solid var(--c-ash);
    }
    .h-scroll__panel-inner {
      max-width: 100%;
    }
    .h-scroll__panel-index {
      font-size: 2.5rem;
    }
    .h-scroll__progress { display: none; }
  }
}

/* === WORKS GALLERY === */
@layer sections {
  .works-gallery {
    padding: var(--sp-md) var(--sp-page) var(--sp-xl);
    position: relative;
    background:
      radial-gradient(ellipse 50% 30% at 20% 20%, rgba(80, 40, 140, 0.06) 0%, transparent 60%),
      radial-gradient(ellipse 40% 30% at 80% 70%, rgba(50, 100, 160, 0.05) 0%, transparent 60%),
      transparent;
  }

  .works-gallery__container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--sp-lg);
  }

  .work-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--sp-md);
    align-items: center;
    will-change: transform;
  }

  .work-card--offset {
    grid-template-columns: 1fr 1.2fr;
    direction: rtl;
  }

  .work-card--offset > * {
    direction: ltr;
  }

  .work-card__image-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
    border-radius: 24px 60px 24px 60px;
  }

  .work-card--offset .work-card__image-wrap {
    border-radius: 60px 24px 60px 24px;
  }

  .work-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .work-card:hover .work-card__image { transform: scale(1.05); }
  }

  .work-card__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 10, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s;
  }

  @media (hover: hover) {
    .work-card:hover .work-card__overlay { opacity: 1; }
  }

  .work-card__view {
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-alabaster);
    border: 1px solid var(--c-alabaster);
    padding: 0.75rem 1.5rem;
  }

  .work-card__info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .work-card__category {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-accent-1);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .work-card__title {
    font-size: var(--fs-h3);
    font-family: var(--f-noto-sans);
    font-weight: 900;
    text-transform: none;
    letter-spacing: -0.02em;
  }

  .work-card__desc {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-silver);
    line-height: 1.9;
  }

  .work-card__stats {
    display: flex;
    gap: var(--sp-sm);
    flex-wrap: wrap;
  }

  .work-card__stat {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
    letter-spacing: 0.05em;
  }

  .work-card__stat strong {
    color: var(--c-alabaster);
    font-weight: 500;
  }

  @media (max-width: 768px) {
    .work-card,
    .work-card--offset {
      grid-template-columns: 1fr;
      direction: ltr;
    }
  }
}

/* === PROCESS PAGE === */
@layer sections {

  /* --- Team Section --- */
  .proc-team {
    padding: var(--sp-md) var(--sp-page) var(--sp-lg);
    text-align: center;
  }

  .proc-team__header {
    max-width: 680px;
    margin: 0 auto var(--sp-md);
  }

  .proc-team__title {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.15em;
    flex-wrap: wrap;
    margin: var(--sp-xs) 0 var(--sp-sm);
    line-height: 1.2;
  }

  /* Shared heading number style — oversized gradient italic numeral */
  .proc-team__title-num,
  .proc-heading__num {
    font-family: var(--f-playfair);
    font-size: clamp(3.2rem, 6vw, 5.5rem);
    font-weight: 600;
    font-style: italic;
    background: linear-gradient(135deg, var(--c-accent-1) 0%, var(--c-accent-2) 50%, var(--c-accent-3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    position: relative;
    filter: drop-shadow(0 0 18px rgba(200, 162, 255, 0.2));
  }

  /* Shared heading Chinese text */
  .proc-team__title-zh,
  .proc-heading__zh {
    font-family: var(--f-noto-serif);
    font-size: clamp(1.6rem, 2.8vw, 2.4rem);
    font-weight: 300;
    color: var(--c-alabaster);
    letter-spacing: 0.08em;
  }

  /* Decorative separator — thin gradient line between "4 大角色" and "1 個目標" */
  .proc-team__title-sep {
    display: inline-block;
    width: 1px;
    height: 2.2em;
    background: linear-gradient(180deg, transparent, var(--c-accent-1), var(--c-accent-2), transparent);
    margin: 0 clamp(0.8rem, 1.5vw, 1.5rem);
    opacity: 0.5;
    align-self: center;
  }

  .proc-team__desc {
    font-family: var(--f-noto-sans);
    font-size: var(--fs-body);
    color: var(--c-silver);
    line-height: 1.9;
    font-weight: 300;
  }

  .proc-team__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: clamp(1rem, 2vw, 2rem);
    max-width: 1100px;
    margin: 0 auto;
  }

  /* --- Role Card --- */
  .proc-role {
    position: relative;
    padding: clamp(1.8rem, 3vw, 2.8rem) clamp(1.2rem, 2vw, 1.8rem);
    border: 1px solid rgba(200, 162, 255, 0.08);
    border-radius: 16px;
    background: linear-gradient(160deg, rgba(200, 162, 255, 0.04) 0%, rgba(212, 165, 116, 0.02) 100%);
    backdrop-filter: blur(12px);
    transition: transform 0.5s var(--ease-out-expo), border-color 0.5s, box-shadow 0.5s;
    overflow: hidden;
  }

  .proc-role::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    background: radial-gradient(ellipse at 50% 0%, rgba(200, 162, 255, 0.06) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
  }

  .proc-role:hover {
    transform: translateY(-6px);
    border-color: rgba(200, 162, 255, 0.2);
    box-shadow: 0 20px 60px -15px rgba(200, 162, 255, 0.1);
  }

  .proc-role:hover::before {
    opacity: 1;
  }

  .proc-role__icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 1.2rem;
    color: var(--c-accent-2);
    transition: color 0.4s;
  }

  .proc-role:hover .proc-role__icon {
    color: var(--c-accent-1);
  }

  .proc-role__en {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-iron);
    margin-bottom: 0.4rem;
  }

  .proc-role__name {
    font-family: var(--f-noto-serif);
    font-size: clamp(1rem, 1.3vw, 1.25rem);
    font-weight: 500;
    color: var(--c-alabaster);
    margin-bottom: 0.8rem;
  }

  .proc-role__desc {
    font-family: var(--f-noto-sans);
    font-size: clamp(0.78rem, 0.9vw, 0.88rem);
    color: var(--c-silver);
    line-height: 1.7;
    font-weight: 300;
  }

  /* --- Divider --- */
  .proc-divider {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 2vw, 2rem);
    max-width: 600px;
    margin: 0 auto;
    padding: var(--sp-sm) var(--sp-page);
    opacity: 0;
    transform: scaleX(0.4);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
  }

  .proc-divider.is-visible {
    opacity: 1;
    transform: scaleX(1);
  }

  .proc-divider__line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(200, 162, 255, 0.25), transparent);
  }

  .proc-divider__text {
    font-family: var(--f-noto-serif);
    font-size: clamp(0.8rem, 1vw, 0.95rem);
    color: var(--c-iron);
    letter-spacing: 0.3em;
    white-space: nowrap;
  }

  /* --- Timeline --- */
  .proc-timeline {
    position: relative;
    padding: var(--sp-md) var(--sp-page) var(--sp-lg);
    max-width: 1000px;
    margin: 0 auto;
  }

  .proc-timeline__track {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(200, 162, 255, 0.08);
    transform: translateX(-50%);
  }

  .proc-timeline__progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--c-accent-1), var(--c-accent-2), var(--c-accent-3));
    transition: height 0.1s linear;
  }

  /* --- Step --- */
  .proc-step {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: start;
    margin-bottom: clamp(3rem, 6vw, 5rem);
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
    will-change: transform, opacity;
  }

  .proc-step:last-of-type {
    margin-bottom: 0;
  }

  .proc-step.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Alternating layout */
  .proc-step:nth-of-type(odd) .proc-step__card {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
  }

  .proc-step:nth-of-type(odd) .proc-step__marker {
    grid-column: 2;
    grid-row: 1;
  }

  .proc-step:nth-of-type(odd)::after {
    content: '';
    grid-column: 3;
    grid-row: 1;
  }

  .proc-step:nth-of-type(even) .proc-step__marker {
    grid-column: 2;
    grid-row: 1;
  }

  .proc-step:nth-of-type(even) .proc-step__card {
    grid-column: 3;
    grid-row: 1;
    text-align: left;
  }

  .proc-step:nth-of-type(even)::before {
    content: '';
    grid-column: 1;
    grid-row: 1;
  }

  /* Marker */
  .proc-step__marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0 clamp(1rem, 2vw, 2rem);
    z-index: 2;
  }

  .proc-step__num {
    font-family: var(--f-mono);
    font-size: clamp(0.7rem, 0.85vw, 0.85rem);
    letter-spacing: 0.1em;
    color: var(--c-accent-1);
    font-weight: 500;
  }

  .proc-step__dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--c-accent-2);
    background: var(--c-void);
    position: relative;
    transition: background 0.4s, border-color 0.4s, box-shadow 0.4s;
  }

  .proc-step.is-visible .proc-step__dot {
    background: var(--c-accent-2);
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.4), 0 0 40px rgba(212, 165, 116, 0.15);
  }

  /* Card */
  .proc-step__card {
    position: relative;
    padding: clamp(1.5rem, 2.5vw, 2.2rem);
    border: 1px solid rgba(200, 162, 255, 0.06);
    border-radius: 16px;
    background: linear-gradient(160deg, rgba(200, 162, 255, 0.03) 0%, rgba(27, 25, 33, 0.6) 100%);
    backdrop-filter: blur(8px);
    transition: border-color 0.5s, box-shadow 0.5s;
  }

  .proc-step.is-visible .proc-step__card {
    border-color: rgba(200, 162, 255, 0.12);
  }

  .proc-step__card:hover {
    border-color: rgba(200, 162, 255, 0.22);
    box-shadow: 0 16px 48px -12px rgba(200, 162, 255, 0.08);
  }

  .proc-step__icon {
    width: 48px;
    height: 48px;
    color: var(--c-accent-2);
    margin-bottom: 1rem;
    transition: color 0.4s;
  }

  .proc-step:nth-of-type(odd) .proc-step__icon {
    margin-left: auto;
  }

  .proc-step__card:hover .proc-step__icon {
    color: var(--c-accent-1);
  }

  .proc-step__en {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-accent-2);
    margin-bottom: 0.3rem;
  }

  .proc-step__title {
    font-family: var(--f-noto-serif);
    font-size: clamp(1.3rem, 1.8vw, 1.7rem);
    font-weight: 500;
    color: var(--c-alabaster);
    margin-bottom: 0.6rem;
    letter-spacing: 0.04em;
  }

  .proc-step__goal {
    font-family: var(--f-noto-sans);
    font-size: clamp(0.85rem, 0.95vw, 0.95rem);
    color: var(--c-accent-3);
    line-height: 1.7;
    margin-bottom: 1.2rem;
    font-weight: 400;
  }

  .proc-step__details {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
  }

  .proc-step__detail {
    padding-top: 0.8rem;
    border-top: 1px solid rgba(200, 162, 255, 0.06);
  }

  .proc-step__label {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-accent-1);
    background: rgba(200, 162, 255, 0.08);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 0.4rem;
  }

  .proc-step__detail p {
    font-family: var(--f-noto-sans);
    font-size: clamp(0.78rem, 0.88vw, 0.88rem);
    color: var(--c-silver);
    line-height: 1.75;
    font-weight: 300;
  }

  /* --- Milestones --- */
  .proc-milestones {
    padding: var(--sp-lg) var(--sp-page);
    text-align: center;
  }

  .proc-milestones__inner {
    max-width: 1100px;
    margin: 0 auto;
  }

  .proc-milestones__title {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.15em;
    margin: var(--sp-xs) 0 var(--sp-md);
    line-height: 1.2;
  }

  .proc-milestones__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: clamp(0.8rem, 1.5vw, 1.5rem);
    position: relative;
  }

  /* Connecting line behind milestones */
  .proc-milestones__grid::before {
    content: '';
    position: absolute;
    top: calc(clamp(1.2rem, 2vw, 2rem) + 18px);
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 165, 116, 0.3), rgba(200, 162, 255, 0.3), rgba(240, 201, 212, 0.3), transparent);
    z-index: 0;
  }

  .proc-milestone {
    position: relative;
    z-index: 1;
    padding: clamp(1.2rem, 2vw, 2rem) clamp(0.8rem, 1.2vw, 1.2rem);
    border: 1px solid rgba(200, 162, 255, 0.06);
    border-radius: 14px;
    background: linear-gradient(180deg, rgba(200, 162, 255, 0.04) 0%, rgba(11, 10, 15, 0.9) 100%);
    transition: transform 0.5s var(--ease-out-expo), border-color 0.4s, box-shadow 0.4s;
  }

  .proc-milestone:hover {
    transform: translateY(-4px);
    border-color: rgba(212, 165, 116, 0.25);
    box-shadow: 0 12px 36px -8px rgba(212, 165, 116, 0.1);
  }

  .proc-milestone__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--c-accent-gradient);
    font-family: var(--f-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--c-void);
    letter-spacing: 0.05em;
    margin-bottom: 0.8rem;
  }

  .proc-milestone__name {
    font-family: var(--f-noto-serif);
    font-size: clamp(0.95rem, 1.1vw, 1.1rem);
    font-weight: 500;
    color: var(--c-alabaster);
    margin-bottom: 0.4rem;
  }

  .proc-milestone__desc {
    font-family: var(--f-noto-sans);
    font-size: clamp(0.72rem, 0.8vw, 0.82rem);
    color: var(--c-iron);
    line-height: 1.6;
    font-weight: 300;
  }

  /* ---- RESPONSIVE ---- */
  @media (max-width: 900px) {
    .proc-team__grid {
      grid-template-columns: repeat(2, 1fr);
    }

    .proc-milestones__grid {
      grid-template-columns: repeat(3, 1fr);
    }

    .proc-milestones__grid::before {
      display: none;
    }
  }

  @media (max-width: 768px) {
    /* Heading: scale down for mobile */
    .proc-team__title-num,
    .proc-heading__num {
      font-size: clamp(2.6rem, 10vw, 3.6rem);
    }

    .proc-team__title-zh,
    .proc-heading__zh {
      font-size: clamp(1.2rem, 4.5vw, 1.6rem);
    }

    .proc-team__title-sep {
      height: 1.8em;
      margin: 0 0.6rem;
    }

    /* Timeline: single column on mobile */
    .proc-timeline__track {
      left: 20px;
      transform: none;
    }

    .proc-step {
      display: flex;
      gap: 0;
    }

    .proc-step:nth-of-type(odd) .proc-step__card,
    .proc-step:nth-of-type(even) .proc-step__card {
      text-align: left;
      grid-column: unset;
    }

    .proc-step:nth-of-type(odd) .proc-step__icon {
      margin-left: 0;
    }

    .proc-step:nth-of-type(odd)::after,
    .proc-step:nth-of-type(even)::before {
      display: none;
    }

    .proc-step__marker {
      flex-shrink: 0;
      padding: 0 1rem 0 0;
      min-width: 40px;
    }

    .proc-step__card {
      flex: 1;
    }

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

  @media (max-width: 480px) {
    .proc-team__grid {
      grid-template-columns: 1fr;
    }

    .proc-team__title-num,
    .proc-heading__num {
      font-size: 2.4rem;
    }

    .proc-team__title-zh,
    .proc-heading__zh {
      font-size: 1.1rem;
    }

    .proc-team__title-sep {
      height: 1.5em;
      margin: 0 0.5rem;
    }

    .proc-milestones__grid {
      grid-template-columns: 1fr;
    }

    .proc-step__marker {
      min-width: 34px;
      padding-right: 0.6rem;
    }
  }

  /* Reveal animation for cards & milestones */
  .proc-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.65s var(--ease-out-expo), transform 0.65s var(--ease-out-expo);
  }

  .proc-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === CONTACT === */
@layer sections {
  .contact-section {
    padding: var(--sp-md) var(--sp-page) var(--sp-xl);
    position: relative;
    background:
      radial-gradient(ellipse 40% 50% at 80% 30%, rgba(100, 50, 180, 0.05) 0%, transparent 60%),
      transparent;
  }

  .contact-section__layout {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--sp-xl);
    align-items: start;
  }

  @media (max-width: 768px) {
    .contact-section__layout {
      grid-template-columns: 1fr;
      gap: var(--sp-lg);
    }
  }

  .contact-info-block {
    margin-bottom: var(--sp-md);
  }

  .contact-info-block .label-mono {
    margin-bottom: 0.5rem;
    display: block;
  }

  .contact-info-block__text {
    font-family: var(--f-noto-sans);
    font-size: var(--fs-body);
    color: var(--c-alabaster);
    font-weight: 400;
  }

  .contact-line-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    color: var(--c-accent-2);
    font-family: var(--f-noto-sans);
    font-size: var(--fs-body);
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.3s, opacity 0.3s;
    position: relative;
  }

  .contact-line-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    transition: width 0.4s var(--ease-out-expo);
  }

  @media (hover: hover) {
    .contact-line-link:hover { color: var(--c-accent-3); opacity: 0.9; }
    .contact-line-link:hover::after { width: 100%; }
  }

  .contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--sp-md);
  }

  .contact-form__field {
    position: relative;
  }

  .contact-form__label {
    display: block;
    margin-bottom: 0.75rem;
  }

  .contact-form__label .label-mono {
    color: var(--c-silver);
    font-size: clamp(0.72rem, 0.85vw, 0.85rem);
  }

  .contact-form__input,
  .contact-form__textarea {
    font-family: var(--f-noto-sans);
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    color: var(--c-alabaster);
    padding: 0.75rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--c-ash);
    transition: border-color 0.3s;
  }

  .contact-form__input::placeholder,
  .contact-form__textarea::placeholder {
    color: var(--c-iron);
    font-family: var(--f-noto-serif);
    font-weight: 300;
  }

  .contact-form__input:focus,
  .contact-form__textarea:focus {
    border-color: var(--c-accent-1);
  }

  .contact-form__line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    transition: width 0.6s var(--ease-out-expo);
  }

  .contact-form__input:focus ~ .contact-form__line,
  .contact-form__textarea:focus ~ .contact-form__line {
    width: 100%;
  }

  .contact-form__btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-alabaster);
    padding: 1.2rem 2.5rem;
    border: 1px solid var(--c-ash);
    transition: border-color 0.4s;
    align-self: flex-start;
  }

  .contact-form__btn:hover {
    border-color: var(--c-accent-1);
  }

  .contact-form__btn-circle {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--c-accent-gradient);
    transition: transform 0.4s var(--ease-out-expo);
  }

  .contact-form__btn:hover .contact-form__btn-circle {
    transform: scale(2);
  }

  .contact-form__feedback {
    font-family: var(--f-mono);
    font-size: var(--fs-small);
    color: var(--c-accent-2);
    min-height: 1.5rem;
  }
}

/* === FOOTER === */
@layer components {
  .footer {
    padding: var(--sp-md) var(--sp-page);
    position: relative;
    background:
      radial-gradient(ellipse 60% 80% at 50% 100%, rgba(60, 30, 100, 0.06) 0%, transparent 60%),
      transparent;
  }

  .footer__line {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(200, 162, 255, 0.15) 50%, transparent 100%);
    margin-bottom: var(--sp-md);
  }

  .footer__content {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-sm);
  }

  .footer__brand {
    font-family: var(--f-noto-sans);
    font-weight: 700;
    font-size: 1rem;
    color: var(--c-alabaster);
  }

  .footer__tagline {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
    letter-spacing: 0.05em;
  }

  .footer__copy {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-iron);
    letter-spacing: 0.05em;
  }

  .footer__link {
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: var(--c-silver);
    letter-spacing: 0.05em;
    transition: color 0.3s;
    position: relative;
  }

  .footer__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--c-accent-gradient);
    transition: width 0.4s var(--ease-out-expo);
  }

  .footer__link:hover {
    color: var(--c-alabaster);
  }

  .footer__link:hover::after {
    width: 100%;
  }

  @media (max-width: 768px) {
    .footer {
      padding: var(--sp-sm) var(--sp-page);
    }

    .footer__line {
      margin-bottom: 1.5rem;
    }

    .footer__content {
      flex-direction: column;
      align-items: center;
      text-align: center;
      gap: 0.6rem;
    }

    .footer__brand {
      font-size: 0.95rem;
      letter-spacing: 0.1em;
    }

    .footer__tagline {
      font-size: 0.6rem;
      letter-spacing: 0.08em;
    }

    .footer__copy {
      font-size: 0.58rem;
      color: var(--c-iron);
      letter-spacing: 0.04em;
      opacity: 0.7;
    }
  }
}

/* === REVEAL ANIMATION STATES === */
@layer animations {
  .reveal-line {
    clip-path: inset(0 100% 0 0);
    transition: none;
  }

  .reveal-line.is-revealed {
    clip-path: inset(0 0% 0 0);
    transition: clip-path 1s var(--ease-out-expo);
  }

  .reveal-fade {
    opacity: 0;
    transform: translateY(30px);
    transition: none;
  }

  .reveal-fade.is-revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
  }

  .reveal-up {
    opacity: 0;
    transform: translateY(60px);
    transition: none;
  }

  .reveal-up.is-revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
  }

  .reveal-field {
    opacity: 0;
    transform: translateY(20px);
    transition: none;
  }

  .reveal-field.is-revealed {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
  }
}

/* === UTILITIES === */
@layer utilities {
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
  }
}

/* ============================================================
   HERO — Brand EN line  (YC.X Digital)
   ============================================================ */
@layer sections {
  .hero__brand-en {
    font-family: var(--f-space);
    font-size: clamp(1rem, 2vw, 1.6rem);
    letter-spacing: 0.32em;
    text-transform: uppercase;
    background: var(--c-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transform: translateY(14px);
    margin-top: 0.55rem;
    pointer-events: none;
  }

  .hero__h1 {
    font-family: var(--f-noto-sans);
    font-size: clamp(0.7rem, 1.2vw, 0.85rem);
    font-weight: 300;
    letter-spacing: 0.35em;
    color: rgba(255, 255, 255, 0.25);
    text-align: center;
    position: absolute;
    bottom: 3%;
    left: 50%;
    transform: translateX(-50%);
    white-space: nowrap;
    pointer-events: none;
  }
}

/* ============================================================
   003 — 美學價值  AESTHETIC VALUE SECTION
   ============================================================ */
@layer sections {

  .aesthetic-value {
    position: relative;
    padding: clamp(5rem, 10vw, 9rem) var(--sp-xl);
    overflow: hidden;
    background: linear-gradient(180deg,
      var(--c-graphite) 0%,
      var(--c-void)     50%,
      var(--c-graphite) 100%
    );
    text-align: center;
  }

  /* Ghost "003" behind everything */
  .aesthetic-value::before {
    content: '003';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--f-space);
    font-size: clamp(12rem, 28vw, 26rem);
    font-weight: 700;
    letter-spacing: -0.06em;
    color: var(--c-accent-2);
    opacity: 0.03;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
    line-height: 1;
  }

  /* Corner L-bracket ornaments */
  .ae-corner {
    position: absolute;
    width: 52px;
    height: 52px;
    opacity: 0.22;
    transition: opacity 1s ease;
  }
  .ae-corner--tl {
    top: clamp(1.5rem, 4vw, 3rem);
    left: clamp(1.5rem, 4vw, 3rem);
    border-top: 1px solid var(--c-accent-2);
    border-left: 1px solid var(--c-accent-2);
  }
  .ae-corner--br {
    bottom: clamp(1.5rem, 4vw, 3rem);
    right:  clamp(1.5rem, 4vw, 3rem);
    border-bottom: 1px solid var(--c-accent-2);
    border-right:  1px solid var(--c-accent-2);
  }

  /* Inner content wrapper */
  .aesthetic-value__inner {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
  }

  .aesthetic-value__label {
    margin-bottom: var(--sp-lg);
  }

  /* Main question heading */
  .aesthetic-value__question {
    font-family: var(--f-playfair);
    font-size: clamp(2.2rem, 5vw, 5rem);
    font-style: italic;
    color: var(--c-alabaster);
    letter-spacing: 0.04em;
    line-height: 1.25;
    margin-bottom: var(--sp-xl);
  }

  /* Jewel separator */
  .ae-jewel {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    width: min(60%, 480px);
    margin: var(--sp-xl) auto;
  }
  .ae-jewel__line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--c-accent-2));
  }
  .ae-jewel__line--r {
    background: linear-gradient(90deg, var(--c-accent-2), transparent);
  }
  .ae-jewel__diamond {
    position: relative;
    width: 9px;
    height: 9px;
    background: var(--c-accent-1);
    transform: rotate(45deg);
    box-shadow: 0 0 14px rgba(212,165,116,0.8), 0 0 28px rgba(212,165,116,0.3);
    animation: aeDiamondPulse 2.8s ease-in-out infinite;
    flex-shrink: 0;
  }
  .ae-jewel__diamond::before,
  .ae-jewel__diamond::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(212,165,116,0.35);
    animation: aeDiamondRing 2.8s ease-in-out infinite;
  }
  .ae-jewel__diamond::before { width: 20px; height: 20px; }
  .ae-jewel__diamond::after  { width: 32px; height: 32px; border-color: rgba(212,165,116,0.15); animation-delay: 0.35s; }

  @keyframes aeDiamondPulse {
    0%, 100% { box-shadow: 0 0 14px rgba(212,165,116,0.7), 0 0 28px rgba(212,165,116,0.25); }
    50%       { box-shadow: 0 0 22px rgba(212,165,116,1.0), 0 0 44px rgba(212,165,116,0.45); }
  }
  @keyframes aeDiamondRing {
    0%, 100% { opacity: 0.35; transform: translate(-50%,-50%) scale(1);    }
    50%       { opacity: 0.75; transform: translate(-50%,-50%) scale(1.18); }
  }

  /* Body paragraph */
  .aesthetic-value__body {
    font-family: var(--f-noto-sans);
    font-size: clamp(1rem, 1.35vw, 1.2rem);
    color: var(--c-silver);
    line-height: 2;
    letter-spacing: 0.04em;
    margin-bottom: var(--sp-md);
  }

  /* Highlighted brand statement */
  .aesthetic-value__highlight {
    position: relative;
    display: inline-block;
    font-family: var(--f-noto-serif);
    font-size: clamp(1.05rem, 1.6vw, 1.42rem);
    color: var(--c-alabaster);
    line-height: 2;
    padding: var(--sp-md) clamp(1.5rem, 3vw, 3rem);
    border: 1px solid rgba(200,162,255,0.15);
    background: linear-gradient(135deg,
      rgba(200,162,255,0.04) 0%,
      rgba(212,165,116,0.04) 100%
    );
    border-radius: 2px;
    overflow: hidden;
  }

  /* Shimmer sweep across the highlight box */
  .aesthetic-value__highlight::before {
    content: '';
    position: absolute;
    top: 0; left: -80%;
    width: 55%;
    height: 100%;
    background: linear-gradient(90deg,
      transparent,
      rgba(255,255,255,0.055),
      transparent
    );
    animation: aeShimmer 4.5s ease-in-out infinite;
    pointer-events: none;
  }

  @keyframes aeShimmer {
    0%   { left: -80%; }
    45%  { left: 130%; }
    100% { left: 130%; }
  }

  /* Brand name gradient text */
  .ae-brand {
    background: var(--c-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    font-style: normal;
  }

  .ae-br-mobile { display: none; }

  @media (max-width: 768px) {
    .aesthetic-value__highlight {
      font-size: clamp(0.95rem, 3.5vw, 1.15rem);
      padding: var(--sp-sm) var(--sp-md);
    }
    .ae-br-mobile { display: inline; }
    .ae-corner { width: 36px; height: 36px; }
  }
}


/* ============================================================
   PRICING PAGE ??Plan Cards & Add-on Modules
   ============================================================ */
@layer sections {

  .pricing-intro {
    padding: 0 var(--sp-page) var(--sp-lg);
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
  }

  .pricing-intro__text {
    font-family: var(--f-noto-serif);
    font-size: var(--fs-body);
    color: var(--c-iron);
    line-height: 1.9;
  }

  .pricing-intro__rule {
    width: 48px;
    height: 1px;
    background: var(--c-accent-gradient);
    margin: var(--sp-sm) auto 0;
  }

  .pricing-plans {
    padding: 0 var(--sp-page) var(--sp-xl);
    display: flex;
    flex-direction: column;
    gap: clamp(1rem, 2vw, 1.5rem);
  }

  .pricing-row { display: grid; gap: clamp(1rem, 2vw, 1.5rem); }
  .pricing-row--trio { grid-template-columns: repeat(3, 1fr); }
  .pricing-row--duo  { grid-template-columns: repeat(2, 1fr); }

  .plan-card {
    position: relative;
    border: 1px solid var(--card-border, rgba(200,162,255,0.10));
    background: rgba(20, 18, 26, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    overflow: hidden;
    transition: transform 0.5s var(--ease-out-quart), box-shadow 0.5s var(--ease-out-quart), border-color 0.4s;
  }

  .plan-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 32px 80px var(--card-glow, rgba(200,162,255,0.10));
    border-color: var(--card-border-hover, var(--card-border, rgba(200,162,255,0.22)));
  }

  .plan-card--1 {
    --card-border: rgba(200,162,255,0.10); --card-border-hover: rgba(200,162,255,0.28);
    --card-glow: rgba(200,162,255,0.10); --card-aurora: rgba(200,162,255,0.09);
    --card-r: 200; --card-g: 162; --card-b: 255;
  }
  .plan-card--2 {
    --card-border: rgba(212,165,116,0.12); --card-border-hover: rgba(212,165,116,0.30);
    --card-glow: rgba(212,165,116,0.12); --card-aurora: rgba(212,165,116,0.09);
    --card-r: 212; --card-g: 165; --card-b: 116;
  }
  .plan-card--3 {
    --card-border: rgba(200,162,255,0.22); --card-border-hover: rgba(200,162,255,0.45);
    --card-glow: rgba(200,162,255,0.18); --card-aurora: rgba(200,162,255,0.12);
    --card-r: 200; --card-g: 162; --card-b: 255;
  }
  .plan-card--4 {
    border: 1px solid transparent;
    background: linear-gradient(rgba(20,18,26,0.90), rgba(20,18,26,0.90)) padding-box,
                linear-gradient(135deg, var(--c-accent-1), var(--c-accent-2)) border-box;
    --card-glow: rgba(212,165,116,0.22); --card-aurora: rgba(212,165,116,0.14);
    --card-r: 212; --card-g: 165; --card-b: 116;
  }
  .plan-card--4:hover { box-shadow: 0 32px 90px rgba(212,165,116,0.20); }
  .plan-card--5 {
    --card-border: rgba(240,201,212,0.15); --card-border-hover: rgba(240,201,212,0.35);
    --card-glow: rgba(240,201,212,0.12); --card-aurora: rgba(240,201,212,0.10);
    --card-r: 240; --card-g: 201; --card-b: 212;
  }

  .plan-card__aurora {
    position: absolute; width: 220px; height: 220px; border-radius: 50%;
    background: var(--card-aurora, rgba(200,162,255,0.08));
    filter: blur(70px); top: -50px; right: -50px;
    pointer-events: none; z-index: 0; transition: opacity 0.5s;
  }

  .plan-card__shimmer {
    position: absolute; inset: 0;
    background: linear-gradient(108deg, transparent 30%, rgba(200,162,255,0.05) 45%, rgba(212,165,116,0.07) 55%, transparent 70%);
    background-size: 250% 100%;
    animation: planShimmer 5s ease-in-out infinite;
    pointer-events: none; z-index: 0;
  }

  @keyframes planShimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
  }

  .plan-card__inner {
    position: relative; z-index: 1;
    padding: clamp(1.8rem, 3vw, 2.8rem) clamp(1.5rem, 2.5vw, 2.5rem);
    display: flex; flex-direction: column; height: 100%;
  }

  .plan-card__head {
    display: flex; align-items: flex-start; gap: 0.9rem;
    margin-bottom: clamp(1.2rem, 2vw, 1.8rem);
  }

  .plan-card__num {
    font-family: var(--f-mono); font-size: 0.68rem;
    color: var(--c-iron); padding-top: 0.5rem; flex-shrink: 0; letter-spacing: 0.05em;
  }

  .plan-card__name {
    font-family: var(--f-playfair); font-size: clamp(1.4rem, 2vw, 1.85rem);
    font-weight: 500; color: var(--c-alabaster); line-height: 1.15; letter-spacing: 0.02em;
  }

  .plan-card__sub {
    font-family: var(--f-mono); font-size: 0.65rem;
    color: var(--c-iron); margin-top: 0.35rem; letter-spacing: 0.06em;
  }

  .plan-card__pricing { margin-bottom: clamp(1rem, 1.5vw, 1.4rem); }

  .plan-card__original-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.4rem;
  }

  .plan-card__original {
    font-family: var(--f-mono); font-size: 0.92rem;
    color: rgba(210, 180, 170, 0.7);
    text-decoration: none;
    letter-spacing: 0.04em;
    position: relative;
  }

  .plan-card__original::after {
    content: '';
    position: absolute;
    left: -2px; right: -2px;
    top: 50%;
    height: 1.5px;
    background: linear-gradient(90deg, var(--c-accent-2), rgba(240, 160, 140, 0.6));
    transform: translateY(-50%) rotate(-1.5deg);
  }


  .plan-card__price-row {
    display: flex; align-items: baseline; gap: 0.2rem; line-height: 1;
  }

  .plan-card__currency {
    font-family: var(--f-grotesk); font-size: 1.05rem; font-weight: 500;
    color: var(--c-silver); margin-bottom: 0.2rem;
  }

  .plan-card__amount {
    font-family: var(--f-grotesk);
    font-size: clamp(2.2rem, 3.4vw, 3rem);
    font-weight: 700;
    background: linear-gradient(135deg,
      rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 1.0) 0%,
      rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.60) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .plan-card__amount-suffix {
    font-family: var(--f-noto-sans); font-size: 1rem;
    color: var(--c-silver); -webkit-text-fill-color: var(--c-silver); margin-left: 0.15rem;
  }

  .plan-card__tag {
    display: inline-block; font-family: var(--f-mono); font-size: 0.62rem;
    letter-spacing: 0.07em; padding: 0.25rem 0.7rem; margin-top: 0.55rem;
    border-radius: 2px;
    background: linear-gradient(135deg,
      rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.12),
      rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.06));
    border: 1px solid rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.3);
    color: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.9);
  }
  .plan-card__tag--note { font-size: 0.58rem; }

  .plan-card__tagline {
    font-family: var(--f-noto-serif); color: var(--c-iron);
    font-size: clamp(0.80rem, 0.9vw, 0.88rem); line-height: 1.75;
    margin-bottom: clamp(1rem, 1.5vw, 1.4rem);
  }

  .plan-card__divider {
    width: 100%; height: 1px;
    background: linear-gradient(90deg, rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.22), transparent 80%);
    margin-bottom: clamp(1rem, 1.5vw, 1.4rem);
  }

  .plan-card__features {
    flex: 1; display: flex; flex-direction: column;
    gap: 0.55rem; margin-bottom: clamp(1.4rem, 2vw, 2rem);
  }

  .plan-card__features li {
    font-family: var(--f-noto-serif); font-size: clamp(0.82rem, 0.85vw, 0.9rem);
    color: var(--c-silver); padding-left: 1.1rem; position: relative; line-height: 1.5;
  }

  .plan-card__features li::before {
    content: ''; position: absolute; left: 0; top: 0.52rem; width: 5px; height: 1px;
    background: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.75);
  }

  .plan-card__badge {
    position: absolute; top: 0; right: 0;
    font-family: var(--f-mono); font-size: 0.58rem; font-weight: 700;
    letter-spacing: 0.12em; padding: 0.42rem 1.1rem;
    background: var(--c-accent-gradient); color: var(--c-void); z-index: 3;
  }
  .plan-card__badge--warm { background: var(--c-accent-gradient-warm); }

  .plan-card__cta {
    position: relative; display: inline-flex; align-items: center; gap: 0.75rem;
    padding: 0.85rem 1.6rem; align-self: flex-start; overflow: hidden;
    border: 1px solid rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.28);
    background: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.05);
    font-family: var(--f-grotesk); font-size: 0.76rem; font-weight: 500;
    letter-spacing: 0.07em; color: var(--c-alabaster);
    transition: border-color 0.3s;
  }

  .plan-card__cta::before {
    content: ''; position: absolute; inset: 0;
    background: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.08);
    transform: translateX(-101%); transition: transform 0.4s var(--ease-out-quart);
  }
  .plan-card__cta:hover::before { transform: translateX(0); }
  .plan-card__cta:hover { border-color: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.55); }

  .plan-card__cta--warm {
    border-color: rgba(212,165,116,0.38); background: rgba(212,165,116,0.07);
    --card-r: 212; --card-g: 165; --card-b: 116;
  }
  .plan-card__cta--ultra {
    border-color: rgba(240,201,212,0.28); background: rgba(240,201,212,0.05);
    --card-r: 240; --card-g: 201; --card-b: 212;
  }

  .plan-card__cta-dot {
    width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0;
    background: rgba(var(--card-r,200), var(--card-g,162), var(--card-b,255), 0.80);
    position: relative; z-index: 1;
  }
  .plan-card__cta-text { position: relative; z-index: 1; }

  /* Add-ons */
  .addons-section {
    padding: var(--sp-lg) var(--sp-page) var(--sp-xl);
    background: linear-gradient(180deg, rgba(11,10,15,0.6) 0%, rgba(11,10,15,0.2) 100%);
  }
  .addons-header { text-align: center; margin-bottom: var(--sp-lg); }
  .addons-intro {
    font-family: var(--f-noto-serif); font-size: var(--fs-body); color: var(--c-iron);
    margin-top: var(--sp-sm); max-width: 480px; margin-left: auto; margin-right: auto;
  }
  .addons-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(1rem, 1.5vw, 1.5rem); max-width: 1200px; margin: 0 auto;
  }
  .addon-group {
    border: 1px solid rgba(200,162,255,0.08);
    background: rgba(20,18,26,0.55); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    padding: clamp(1.2rem, 2vw, 1.8rem);
    transition: border-color 0.35s, transform 0.35s var(--ease-out-quart);
  }
  .addon-group:hover { border-color: rgba(200,162,255,0.18); transform: translateY(-4px); }

  .addon-group__header {
    display: flex; align-items: center; gap: 0.75rem;
    margin-bottom: clamp(0.8rem, 1.2vw, 1.1rem);
    padding-bottom: 0.8rem; border-bottom: 1px solid rgba(200,162,255,0.08);
  }
  .addon-group__roman {
    font-family: var(--f-cormorant); font-size: 1.6rem; font-style: italic;
    color: var(--c-accent-2); line-height: 1; flex-shrink: 0; opacity: 0.9;
  }
  .addon-group__header h3 {
    font-family: var(--f-noto-sans); font-size: 0.82rem;
    font-weight: 500; color: var(--c-alabaster); letter-spacing: 0.06em;
  }
  .addon-list { display: flex; flex-direction: column; }
  .addon-item {
    display: flex; justify-content: space-between; align-items: baseline;
    gap: 0.8rem; padding: 0.6rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    font-family: var(--f-noto-serif); font-size: 0.82rem; color: var(--c-silver); line-height: 1.4;
  }
  .addon-item:last-child { border-bottom: none; }
  .addon-item__price {
    font-family: var(--f-mono); font-size: 0.68rem;
    color: var(--c-accent-2); white-space: nowrap; flex-shrink: 0;
  }

  @media (max-width: 1100px) {
    .pricing-row--trio { grid-template-columns: repeat(2, 1fr); }
    .pricing-row--duo  { grid-template-columns: 1fr; }
  }
  @media (max-width: 700px) {
    .pricing-row--trio, .pricing-row--duo { grid-template-columns: 1fr; }
    .plan-card:hover { transform: none; }

    /* 手機效能優化：關閉高耗能 GPU 效果 */
    .plan-card {
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
      background: rgba(20, 18, 26, 0.95);
    }
    .plan-card__aurora {
      display: none;
    }
    .plan-card__shimmer {
      display: none;
    }
  }
}

/* ============================================================
   004 — FAQ ACCORDION
   ============================================================ */
@layer sections {
  .faq {
    padding: var(--sp-xl) var(--sp-page);
    position: relative;
  }

  .faq__container {
    max-width: 860px;
    margin: 0 auto;
  }

  .faq__header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 5vw, 4rem);
  }

  .faq__title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(0.8rem, 1.5vw, 1.2rem);
    margin-top: var(--sp-xs);
  }

  .faq__title-en {
    font-family: var(--f-playfair);
    font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    font-weight: 400;
    font-style: italic;
    background: var(--c-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    filter: drop-shadow(0 0 12px rgba(200, 162, 255, 0.15));
  }

  .faq__title-zh {
    font-family: var(--f-noto-serif);
    font-size: clamp(0.9rem, 1.6vw, 1.15rem);
    font-weight: 400;
    color: var(--c-silver);
    letter-spacing: 0.15em;
  }

  /* --- Accordion Items --- */
  .faq__list {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  .faq__item {
    border-bottom: 1px solid rgba(200, 162, 255, 0.08);
  }

  .faq__item:first-child {
    border-top: 1px solid rgba(200, 162, 255, 0.08);
  }

  /* --- Question (Summary) --- */
  .faq__question {
    display: flex;
    align-items: center;
    gap: clamp(0.8rem, 1.5vw, 1.2rem);
    padding: clamp(1.2rem, 2vw, 1.6rem) 0;
    cursor: pointer;
    list-style: none;
    transition: all 0.35s var(--ease-out-expo);
  }

  .faq__question::-webkit-details-marker { display: none; }
  .faq__question::marker { content: ''; }

  .faq__question:hover {
    padding-left: 0.5rem;
  }

  .faq__question:hover .faq__num {
    color: var(--c-accent-2);
  }

  .faq__num {
    font-family: var(--f-cormorant);
    font-size: clamp(1.1rem, 1.8vw, 1.4rem);
    font-style: italic;
    color: rgba(200, 162, 255, 0.4);
    min-width: 2.2rem;
    flex-shrink: 0;
    transition: color 0.35s;
  }

  .faq__q-text {
    font-family: var(--f-noto-sans);
    font-size: clamp(1.02rem, 1.55vw, 1.2rem);
    font-weight: 500;
    color: var(--c-alabaster);
    letter-spacing: 0.02em;
    line-height: 1.6;
    flex: 1;
  }

  /* --- Plus/Minus Icon --- */
  .faq__icon {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-left: auto;
  }

  .faq__icon span {
    position: absolute;
    background: var(--c-accent-gradient);
    border-radius: 1px;
    transition: transform 0.4s var(--ease-out-expo), opacity 0.3s;
  }

  .faq__icon span:first-child {
    width: 18px;
    height: 1.5px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
  }

  .faq__icon span:last-child {
    width: 1.5px;
    height: 18px;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
  }

  .faq__item[open] .faq__icon span:last-child {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
  }

  .faq__item[open] .faq__icon span:first-child {
    transform: translateY(-50%) rotate(180deg);
  }

  .faq__item[open] .faq__num {
    color: var(--c-accent-2);
  }

  /* --- Answer --- */
  .faq__answer {
    overflow: hidden;
    padding: 0 0 clamp(1.2rem, 2vw, 1.8rem) calc(2.2rem + clamp(0.8rem, 1.5vw, 1.2rem));
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 0.35s 0.05s ease, transform 0.35s 0.05s ease;
  }

  .faq__item[open] .faq__answer {
    opacity: 1;
    transform: translateY(0);
  }

  .faq__answer p {
    font-family: var(--f-noto-serif);
    font-size: clamp(0.98rem, 1.38vw, 1.1rem);
    color: var(--c-silver);
    line-height: 1.9;
    letter-spacing: 0.03em;
  }

  .faq__answer p:first-child {
    font-family: var(--f-noto-sans);
    font-weight: 500;
    color: var(--c-accent-2);
    font-size: clamp(1.02rem, 1.44vw, 1.14rem);
    margin-bottom: 0.6rem;
  }

  .faq__answer p + p {
    margin-top: 0;
  }

  /* --- Responsive --- */
  @media (max-width: 768px) {
    .faq__title {
      flex-direction: column;
      gap: 0.3rem;
    }

    .faq__question {
      gap: 0.6rem;
    }

    .faq__answer {
      padding-left: calc(1.8rem + 0.6rem);
    }

    .faq__num {
      min-width: 1.8rem;
    }

    .faq__q-text {
      font-size: 1.02rem;
    }

    .faq__answer p {
      font-size: 0.98rem;
    }

    .faq__answer p:first-child {
      font-size: 1.02rem;
    }
  }
}

/* === FLOATING SOCIAL FAB === */
@layer components {
  @keyframes fab-float {
    0%   { transform: translateY(0px) rotate(0deg); }
    30%  { transform: translateY(-9px) rotate(-1.5deg); }
    60%  { transform: translateY(-5px) rotate(1deg); }
    100% { transform: translateY(0px) rotate(0deg); }
  }

  @keyframes fab-glow-pulse {
    0%, 100% { box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.14),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 5px 0 rgba(6,5,10,0.95),
      0 8px 24px rgba(0,0,0,0.65),
      0 0 0 1px rgba(200,162,255,0.35),
      0 0 20px rgba(200,162,255,0.18),
      10px 6px 28px rgba(212,165,116,0.12),
      -10px -4px 28px rgba(240,201,212,0.1); }
    33% { box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.14),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 5px 0 rgba(6,5,10,0.95),
      0 8px 24px rgba(0,0,0,0.65),
      0 0 0 1px rgba(212,165,116,0.4),
      0 0 22px rgba(212,165,116,0.2),
      10px 6px 28px rgba(240,201,212,0.14),
      -10px -4px 28px rgba(200,162,255,0.12); }
    66% { box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.14),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 5px 0 rgba(6,5,10,0.95),
      0 8px 24px rgba(0,0,0,0.65),
      0 0 0 1px rgba(240,201,212,0.4),
      0 0 24px rgba(240,201,212,0.18),
      10px 6px 28px rgba(200,162,255,0.14),
      -10px -4px 28px rgba(212,165,116,0.12); }
  }

  @keyframes fab-ring-rotate {
    to { transform: rotate(360deg); }
  }

  .social-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 150;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
  }

  /* Social icon items */
  .social-fab__menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
    pointer-events: none;
  }

  .social-fab__item {
    position: relative;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    opacity: 0;
    transform: translateY(18px) scale(0.65);
    transition:
      opacity 0.38s var(--ease-out-expo),
      transform 0.42s var(--ease-out-expo),
      box-shadow 0.25s,
      filter 0.2s;
    pointer-events: none;
    /* 3D raised look */
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,0.22),
      0 3px 0 rgba(0,0,0,0.28),
      0 7px 16px rgba(0,0,0,0.38);
    will-change: transform, opacity;
    flex-shrink: 0;
  }

  /* Tooltip */
  .social-fab__item::before {
    content: attr(aria-label);
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(6px);
    background: rgba(15, 13, 20, 0.94);
    color: var(--c-alabaster);
    font-family: var(--f-mono);
    font-size: 0.6rem;
    letter-spacing: 0.07em;
    padding: 0.28rem 0.6rem;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
    border: 1px solid rgba(200, 162, 255, 0.18);
    backdrop-filter: blur(8px);
  }

  .social-fab__item:hover::before {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }

  /* Brand colors */
  .social-fab__item--fb   { background: linear-gradient(145deg, #2d88ff, #1877F2); }
  .social-fab__item--ig   { background: linear-gradient(145deg, #f5a623, #e6683c 30%, #dc2743 55%, #cc2366 78%, #bc1888); }
  .social-fab__item--line { background: linear-gradient(145deg, #2bdc71, #06C755); }
  .social-fab__item--msg  { background: linear-gradient(145deg, #44b0ff, #0078FF 40%, #9933ff); }

  /* Open state */
  .social-fab.is-open .social-fab__menu { pointer-events: auto; }

  .social-fab.is-open .social-fab__item {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
  }

  /* Stagger top → bottom */
  .social-fab.is-open .social-fab__item:nth-child(1) { transition-delay: 0s; }
  .social-fab.is-open .social-fab__item:nth-child(2) { transition-delay: 0.07s; }
  .social-fab.is-open .social-fab__item:nth-child(3) { transition-delay: 0.14s; }
  .social-fab.is-open .social-fab__item:nth-child(4) { transition-delay: 0.21s; }

  .social-fab__item:hover {
    transform: scale(1.13) translateY(-2px) !important;
    filter: brightness(1.12);
    box-shadow:
      inset 0 1px 0 rgba(255,255,255,0.28),
      0 5px 0 rgba(0,0,0,0.32),
      0 12px 22px rgba(0,0,0,0.45);
  }

  /* ── 3D Trigger Button ── */
  .social-fab__trigger {
    position: relative;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    /* Sphere surface: top-left specular + depth gradient */
    background:
      radial-gradient(circle at 36% 30%, rgba(255,255,255,0.18) 0%, transparent 42%),
      radial-gradient(circle at 68% 72%, rgba(200,162,255,0.1) 0%, transparent 40%),
      linear-gradient(148deg, #2e2348 0%, #1b1921 42%, #0e0c14 100%);
    /* 3D shadow stack */
    box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.14),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 5px 0 rgba(6,5,10,0.95),
      0 8px 24px rgba(0,0,0,0.65),
      0 0 0 1px rgba(200,162,255,0.28),
      0 0 22px rgba(200,162,255,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    overflow: visible;
    /* Float + glow pulse */
    animation:
      fab-float 3.2s ease-in-out infinite,
      fab-glow-pulse 4.8s ease-in-out infinite;
    transition: filter 0.25s, box-shadow 0.25s;
  }

  /* Rotating gradient glow ring */
  .social-fab__trigger::before {
    content: '';
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    background: conic-gradient(
      from 0deg,
      rgba(200,162,255,0.55),
      rgba(212,165,116,0.4),
      rgba(240,201,212,0.35),
      rgba(200,162,255,0.55)
    );
    filter: blur(14px);
    animation: fab-ring-rotate 6s linear infinite;
    pointer-events: none;
  }

  .social-fab__trigger:hover {
    animation-play-state: paused;
    filter: brightness(1.2) saturate(1.15);
    box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.18),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 5px 0 rgba(6,5,10,0.95),
      0 12px 30px rgba(0,0,0,0.7),
      0 0 0 1.5px rgba(200,162,255,0.65),
      0 0 42px rgba(200,162,255,0.3);
  }

  .social-fab.is-open .social-fab__trigger {
    animation-play-state: paused;
    box-shadow:
      inset 0 1.5px 2px rgba(255,255,255,0.16),
      inset 0 -2px 5px rgba(0,0,0,0.55),
      0 3px 0 rgba(6,5,10,0.95),
      0 6px 18px rgba(0,0,0,0.6),
      0 0 0 1.5px rgba(200,162,255,0.7),
      0 0 36px rgba(200,162,255,0.28);
  }

  /* Dual icon swap */
  .social-fab__icon-chat,
  .social-fab__icon-close {
    position: absolute;
    color: var(--c-alabaster);
    transition:
      opacity 0.28s var(--ease-out-expo),
      transform 0.32s var(--ease-out-expo);
    filter: drop-shadow(0 1px 3px rgba(0,0,0,0.5));
  }

  .social-fab__icon-close {
    opacity: 0;
    transform: rotate(-30deg) scale(0.65);
  }

  .social-fab.is-open .social-fab__icon-chat {
    opacity: 0;
    transform: rotate(30deg) scale(0.65);
  }

  .social-fab.is-open .social-fab__icon-close {
    opacity: 1;
    transform: rotate(0deg) scale(1);
  }

  @media (max-width: 768px) {
    .social-fab {
      bottom: 1.5rem;
      right: 1.25rem;
    }
    .social-fab__trigger {
      width: 52px;
      height: 52px;
    }
    .social-fab__item {
      width: 40px;
      height: 40px;
    }
  }
}

/* === LIGHTBOX (image viewer) === */
@layer components {
  .lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.45s cubic-bezier(0.19, 1, 0.22, 1),
                visibility 0.45s;
  }

  .lightbox.is-active {
    opacity: 1;
    visibility: visible;
  }

  /* Backdrop */
  .lightbox__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(4, 2, 8, 0.94);
    backdrop-filter: blur(50px) saturate(1.3);
    -webkit-backdrop-filter: blur(50px) saturate(1.3);
  }

  /* Close */
  .lightbox__close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 10;
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(200, 162, 255, 0.1);
    border-radius: 50%;
    background: rgba(27, 25, 33, 0.4);
    backdrop-filter: blur(12px);
    transition: all 0.35s var(--ease-out-expo);
  }

  .lightbox__close:hover {
    color: var(--c-alabaster);
    border-color: var(--c-accent-1);
    background: rgba(200, 162, 255, 0.1);
    transform: rotate(90deg) scale(1.05);
  }

  /* Image frame — fullscreen */
  .lightbox__frame {
    position: relative;
    width: 85vw;
    height: 85vh;
    border-radius: 10px;
    overflow: hidden;
    transform: scale(0.93);
    transition: transform 0.55s cubic-bezier(0.19, 1, 0.22, 1);
  }

  .lightbox.is-active .lightbox__frame {
    transform: scale(1);
  }

  .lightbox__image {
    width: 100%;
    height: 100%;
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.8s cubic-bezier(0.19, 1, 0.22, 1);
  }

  /* Prev / Next arrows — sides */
  .lightbox__arrow {
    position: absolute;
    top: 50%;
    z-index: 10;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(200, 162, 255, 0.12);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.5);
    background: rgba(27, 25, 33, 0.4);
    backdrop-filter: blur(12px);
    transform: translateY(-50%);
    transition: all 0.3s var(--ease-out-expo);
  }

  .lightbox__arrow--prev { left: 1.5rem; }
  .lightbox__arrow--next { right: 1.5rem; }

  .lightbox__arrow:hover {
    color: var(--c-alabaster);
    border-color: var(--c-accent-1);
    background: rgba(200, 162, 255, 0.1);
    transform: translateY(-50%) scale(1.1);
  }

  /* Counter */
  .lightbox__counter {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    font-family: var(--f-mono);
    font-size: var(--fs-mono);
    color: rgba(255, 255, 255, 0.35);
    letter-spacing: 0.2em;
    padding: 0.4rem 1rem;
    border: 1px solid rgba(200, 162, 255, 0.08);
    border-radius: 100px;
    background: rgba(27, 25, 33, 0.4);
    backdrop-filter: blur(12px);
    opacity: 0;
    transition: opacity 0.4s 0.3s;
  }

  .lightbox.is-active .lightbox__counter {
    opacity: 1;
  }

  /* Hide nav & FAB when lightbox is open */
  body.lightbox-open .nav,
  body.lightbox-open .social-fab {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
  }

  /* Make work-card image-wrap clickable */
  .work-card__image-wrap {
    cursor: pointer;
  }

  /* Mobile */
  @media (max-width: 768px) {
    .lightbox__frame {
      width: 92vw;
      height: 80vh;
      border-radius: 8px;
    }

    .lightbox__close {
      top: 0.75rem;
      right: 0.75rem;
      width: 40px;
      height: 40px;
      background: rgba(27, 25, 33, 0.7);
    }

    .lightbox__arrow {
      width: 38px;
      height: 38px;
      background: rgba(27, 25, 33, 0.6);
    }

    .lightbox__arrow--prev { left: 0.5rem; }
    .lightbox__arrow--next { right: 0.5rem; }

    .lightbox__counter {
      bottom: 1rem;
    }
  }
}

/* ============================================================
   MOBILE PERFORMANCE — 手機停用高耗能視覺特效
   ============================================================ */
@media (max-width: 768px) {
  /* 停用 grain-overlay：SVG feTurbulence 全螢幕每幀重算，手機 GPU 殺手 */
  .grain-overlay {
    display: none !important;
  }

  /* 簡化 ambient orbs：停止動畫 + 降低 blur，保留靜態氛圍光 */
  .ambient__orb {
    filter: blur(60px) !important;
    animation: none !important;
  }

  /* 降低 backdrop-filter：手機 GPU 合成層壓力，視覺幾乎無差異 */
  .service-card,
  .proc-role,
  .proc-step__card {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }

  .plan-card {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .lightbox__backdrop {
    backdrop-filter: blur(16px) saturate(1.1);
    -webkit-backdrop-filter: blur(16px) saturate(1.1);
  }

  .lightbox__close,
  .lightbox__arrow {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
}