:root {
    --bg-0: #07110e;
    --bg-1: #0d1b16;
    --bg-2: #12241d;
    --bg-3: #183127;
    --line: rgba(240, 206, 130, 0.12);
    --line-2: rgba(240, 206, 130, 0.24);
    --line-3: rgba(240, 206, 130, 0.45);
    --gold: #e0b053;
    --gold-soft: #f2d492;
    --emerald: #3ddc97;
    --teal: #4ecdc4;
    --rose: #e8857a;
    --cream: #f7f1e3;
    --text-1: #d3e2d6;
    --text-2: #93b09e;
    --text-3: #64836f;
    --radius-s: 8px;
    --radius-m: 14px;
    --radius-l: 20px;
    --radius-xl: 28px;
    --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
    --shadow-card: 0 10px 34px rgba(2, 8, 6, 0.55);
    --shadow-card-hover: 0 22px 56px rgba(2, 8, 6, 0.7), 0 0 0 1px rgba(240, 206, 130, 0.14);
    --shadow-glow: 0 0 28px rgba(224, 176, 83, 0.28);
    --shadow-glow-emerald: 0 0 28px rgba(61, 220, 151, 0.26);
    --grad-primary: linear-gradient(135deg, #f2d492 0%, #e0b053 50%, #3ddc97 100%);
    --font-display: 'Noto Serif SC', 'Songti SC', 'SimSun', Georgia, serif;
    --font-body: 'Inter', 'PingFang SC', 'Noto Sans SC', 'Segoe UI', system-ui, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 84px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

section[id] {
    scroll-margin-top: 84px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-1);
    background-image:
        radial-gradient(ellipse at 12% 8%, rgba(224, 176, 83, 0.09) 0%, transparent 55%),
        radial-gradient(ellipse at 88% 18%, rgba(61, 220, 151, 0.08) 0%, transparent 52%),
        radial-gradient(ellipse at 50% 100%, rgba(78, 205, 196, 0.07) 0%, transparent 55%);
    color: var(--cream);
    line-height: 1.7;
    letter-spacing: 0.25px;
    overflow-x: hidden;
    min-height: 100vh;
    font-size: 16px;
}

::selection {
    background: rgba(224, 176, 83, 0.32);
    color: #fff8e8;
}

h1,
h2,
h3 {
    text-wrap: balance;
}

a,
button {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: 4px;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-0);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--gold), var(--emerald));
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--gold-soft), var(--teal));
}

#pulse {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    background: var(--grad-primary);
    border-radius: 0 3px 3px 0;
    z-index: 1200;
    box-shadow: 0 0 12px rgba(224, 176, 83, 0.6);
}

#jumpTop {
    position: fixed;
    right: 26px;
    bottom: 30px;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(240, 206, 130, 0.35);
    border-radius: 50%;
    background: rgba(18, 36, 29, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--gold);
    font-size: 1.05rem;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px) scale(0.9);
    transition: all 0.35s var(--ease);
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
}
#jumpTop:hover {
    transform: translateY(-3px) scale(1.05);
    background: rgba(224, 176, 83, 0.15);
    border-color: var(--gold);
}
#jumpTop.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.fadein {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.65s ease, transform 0.65s var(--ease);
}
.fadein.in {
    opacity: 1;
    transform: none;
}

.shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 28px;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 27, 22, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    transition: background 0.35s ease, border-color 0.35s ease;
}
.nav::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(224, 176, 83, 0.5), transparent);
    opacity: 0.55;
    pointer-events: none;
}
.nav.scrolled {
    background: rgba(7, 17, 14, 0.95);
    border-bottom-color: var(--line-2);
}
.nav-inner {
    height: 66px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--cream);
    letter-spacing: 3px;
    white-space: nowrap;
    transition: color 0.3s ease;
}
.nav-logo i {
    color: var(--gold);
    font-size: 1.05rem;
    text-shadow: 0 0 14px rgba(224, 176, 83, 0.6);
    transition: transform 0.35s var(--ease);
}
.nav-logo:hover i {
    transform: rotate(-8deg) scale(1.12);
}
.nav-logo:hover {
    color: var(--gold-soft);
}
.nav-links {
    display: flex;
    gap: 1.6rem;
    list-style: none;
    font-size: 0.88rem;
    letter-spacing: 1px;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-1);
    position: relative;
    padding: 4px 0;
    white-space: nowrap;
    transition: color 0.3s ease;
}
.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 0;
    height: 2px;
    background: var(--grad-primary);
    border-radius: 2px;
    transition: width 0.3s var(--ease);
}
.nav-links a:hover {
    color: var(--cream);
}
.nav-links a:hover::after {
    width: 100%;
}
.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line-2);
    border-radius: var(--radius-s);
    color: var(--cream);
    font-size: 1.05rem;
    width: 42px;
    height: 38px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s ease, color 0.3s ease;
}
.nav-toggle:hover {
    border-color: var(--gold);
    color: var(--gold-soft);
}

.masthead {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 150px 0 90px;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 75% 20%, rgba(224, 176, 83, 0.13) 0%, transparent 55%),
        radial-gradient(ellipse at 20% 60%, rgba(61, 220, 151, 0.11) 0%, transparent 50%),
        radial-gradient(ellipse at 55% 110%, rgba(78, 205, 196, 0.09) 0%, transparent 55%),
        radial-gradient(rgba(242, 212, 146, 0.1) 1px, transparent 1.5px),
        linear-gradient(170deg, #0a1511 0%, #0d1b16 50%, #0e211a 100%);
    background-size: auto, auto, auto, 36px 36px, auto;
}
.masthead::before {
    content: '';
    position: absolute;
    top: -18%;
    right: -6%;
    width: 680px;
    height: 680px;
    background: radial-gradient(circle, rgba(224, 176, 83, 0.11) 0%, transparent 66%);
    border-radius: 50%;
    pointer-events: none;
    animation: drift 9s ease-in-out infinite alternate;
}
.masthead::after {
    content: '';
    position: absolute;
    bottom: -16%;
    left: -6%;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(61, 220, 151, 0.1) 0%, transparent 64%);
    border-radius: 50%;
    pointer-events: none;
    animation: drift 11s ease-in-out infinite alternate-reverse;
}
@keyframes drift {
    0% { opacity: 0.55; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.07); }
}
.particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}
.particles .particle {
    position: absolute;
    width: 3px;
    height: 3px;
    border-radius: 50%;
    animation: floatUp 14s linear infinite;
}
.particles .particle:nth-child(1) { left: 8%; top: 30%; background: rgba(224, 176, 83, 0.65); animation-delay: 0s; animation-duration: 16s; }
.particles .particle:nth-child(2) { left: 20%; top: 70%; background: rgba(61, 220, 151, 0.7); animation-delay: 3s; animation-duration: 18s; }
.particles .particle:nth-child(3) { left: 45%; top: 15%; background: rgba(78, 205, 196, 0.75); animation-delay: 6s; animation-duration: 13s; }
.particles .particle:nth-child(4) { left: 65%; top: 55%; background: rgba(232, 133, 122, 0.6); animation-delay: 2s; animation-duration: 17s; }
.particles .particle:nth-child(5) { left: 85%; top: 35%; background: rgba(242, 212, 146, 0.6); animation-delay: 7s; animation-duration: 15s; }
.particles .particle:nth-child(6) { left: 50%; top: 80%; background: rgba(224, 176, 83, 0.55); animation-delay: 4s; animation-duration: 20s; }
@keyframes floatUp {
    0% { transform: translateY(0) translateX(0); opacity: 0; }
    15% { opacity: 0.7; }
    50% { transform: translateY(-45px) translateX(18px); opacity: 0.35; }
    85% { opacity: 0.6; }
    100% { transform: translateY(-90px) translateX(-12px); opacity: 0; }
}

.masthead-inner {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
}
.masthead-inner::after {
    content: '';
    display: block;
    width: 22px;
    height: 22px;
    margin: 36px auto 0;
    border-right: 2px solid var(--gold);
    border-bottom: 2px solid var(--gold);
    transform: rotate(45deg);
    opacity: 0.7;
    animation: bounce 1.9s ease-in-out infinite;
}
@keyframes bounce {
    0%, 100% { transform: translateY(0) rotate(45deg); }
    50% { transform: translateY(9px) rotate(45deg); }
}
.kicker {
    display: inline-block;
    background: rgba(224, 176, 83, 0.1);
    color: var(--gold-soft);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 3px;
    padding: 6px 18px;
    border-radius: 30px;
    border: 1px solid rgba(224, 176, 83, 0.35);
    margin-bottom: 22px;
    text-transform: uppercase;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.masthead-title {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: 6px;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 14px;
    filter: drop-shadow(0 3px 24px rgba(224, 176, 83, 0.32));
}
.tagline {
    font-size: clamp(0.98rem, 2.4vw, 1.15rem);
    color: var(--text-1);
    margin-bottom: 26px;
    font-weight: 300;
    letter-spacing: 3px;
    font-style: italic;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}
.tagline::before,
.tagline::after {
    content: '';
    flex: 0 0 auto;
    width: 38px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(224, 176, 83, 0.65));
    margin: 0 16px;
}
.tagline::after {
    transform: scaleX(-1);
}
.lede {
    font-size: 0.98rem;
    color: var(--text-1);
    max-width: 640px;
    margin: 0 auto 26px;
    line-height: 1.9;
    background: rgba(24, 49, 39, 0.55);
    border: 1px solid var(--line);
    border-left: 3px solid var(--gold);
    border-radius: var(--radius-m);
    padding: 18px 22px;
    text-align: left;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}
.facts {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 26px;
    margin: 22px 0 28px;
}
.fact {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-2);
    transition: color 0.2s ease;
}
.fact:hover {
    color: var(--text-1);
}
.fact i {
    width: 18px;
    text-align: center;
    font-size: 0.9rem;
}
.fact:nth-child(1) i { color: var(--gold); }
.fact:nth-child(2) i { color: var(--emerald); }
.fact:nth-child(3) i { color: var(--rose); }
.fact:nth-child(4) i { color: var(--teal); }
.fact strong {
    color: var(--cream);
    font-weight: 600;
}
.cta-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-bottom: 44px;
}
.cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    transition: all 0.35s var(--ease);
    border: 1px solid transparent;
    cursor: pointer;
    background: transparent;
    font-family: var(--font-body);
    letter-spacing: 0.4px;
    white-space: nowrap;
}
.cta-solid {
    background: var(--grad-primary);
    color: #0d1b16;
    box-shadow: 0 8px 26px rgba(224, 176, 83, 0.3);
}
.cta-solid:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 38px rgba(224, 176, 83, 0.45);
    filter: brightness(1.06);
}
.cta-solid:active {
    transform: translateY(-1px);
}
.cta-ghost {
    border-color: var(--line-2);
    color: var(--text-1);
    background: rgba(18, 36, 29, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.cta-ghost:hover {
    border-color: var(--gold);
    color: var(--gold-soft);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}
.cta-ghost:active {
    transform: translateY(-1px);
}
.cover {
    width: 240px;
    margin: 0 auto 30px;
    border-radius: var(--radius-l);
    overflow: hidden;
    position: relative;
    transform: rotate(-2deg);
    box-shadow:
        0 0 0 8px rgba(13, 27, 22, 1),
        0 0 0 9px rgba(224, 176, 83, 0.35),
        0 26px 60px rgba(2, 8, 6, 0.7);
    transition: transform 0.45s var(--ease), box-shadow 0.45s ease;
}
.cover:hover {
    transform: rotate(0deg) scale(1.02);
    box-shadow:
        0 0 0 8px rgba(13, 27, 22, 1),
        0 0 0 10px rgba(224, 176, 83, 0.55),
        0 34px 74px rgba(2, 8, 6, 0.8);
}
.cover-img {
    display: block;
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
}
.cover-tag {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(7, 17, 14, 0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(224, 176, 83, 0.4);
    padding: 4px 16px;
    border-radius: 30px;
    font-size: 0.68rem;
    letter-spacing: 1px;
    color: var(--gold-soft);
    z-index: 2;
    white-space: nowrap;
}
.notice {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 18px;
    border-top: 1px dashed var(--line-2);
    max-width: 640px;
    margin: 0 auto;
}
.notice-item {
    font-size: 0.8rem;
    color: var(--text-2);
    display: flex;
    align-items: center;
    gap: 7px;
    letter-spacing: 0.4px;
    transition: color 0.2s ease;
}
.notice-item:hover {
    color: var(--text-1);
}
.notice-item:nth-child(1) i { color: var(--rose); }
.notice-item:nth-child(2) i { color: var(--gold); }
.notice-item:nth-child(3) i { color: var(--emerald); }

.overview {
    padding: 90px 0 70px;
    background: var(--bg-1);
    border-top: 1px solid var(--line);
    position: relative;
}
.overview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 78%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(224, 176, 83, 0.4), transparent);
}
.block-title {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.2vw, 2.1rem);
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 10px;
    color: var(--cream);
    display: flex;
    align-items: center;
    gap: 12px;
}
.block-title::before {
    content: '';
    flex: 0 0 auto;
    width: 6px;
    height: 0.9em;
    border-radius: 3px;
    background: var(--grad-primary);
    box-shadow: 0 0 12px rgba(224, 176, 83, 0.5);
}
.block-title .accent {
    display: inline-block;
    width: 52px;
    height: 3px;
    background: var(--grad-primary);
    border-radius: 3px;
    vertical-align: middle;
    margin-left: 6px;
    flex: 0 0 auto;
}
.block-sub {
    color: var(--text-2);
    font-size: 0.9rem;
    margin-bottom: 42px;
    font-weight: 300;
    letter-spacing: 1.5px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 18px;
}
.block-sub::before {
    content: '';
    display: inline-block;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 10px rgba(224, 176, 83, 0.7);
    flex: 0 0 auto;
}
.overview-text {
    font-size: 0.98rem;
    color: var(--text-1);
    line-height: 1.95;
    letter-spacing: 0.3px;
    max-width: 860px;
}
.overview-text p {
    margin-bottom: 18px;
}
.overview-text .em {
    color: var(--gold-soft);
    font-weight: 600;
    letter-spacing: 0.5px;
}
.stat-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 38px;
}
.stat {
    background: rgba(24, 49, 39, 0.6);
    border: 1px solid var(--line);
    border-radius: var(--radius-m);
    padding: 24px 16px;
    text-align: center;
    transition: all 0.35s var(--ease);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--grad-primary);
    transition: width 0.4s var(--ease);
}
.stat:hover::before {
    width: 72%;
}
.stat:hover {
    transform: translateY(-5px);
    border-color: var(--line-2);
    box-shadow: var(--shadow-card);
}
.stat-num {
    font-size: clamp(1.7rem, 3.4vw, 2.1rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0.5px;
}
.stat:nth-child(1) .stat-num { color: var(--gold); }
.stat:nth-child(2) .stat-num { color: var(--emerald); }
.stat:nth-child(3) .stat-num { color: var(--rose); }
.stat:nth-child(4) .stat-num { color: var(--teal); }
.stat-label {
    font-size: 0.76rem;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 8px;
    font-weight: 500;
}

.arcs {
    padding: 80px 0 60px;
    background: var(--bg-2);
    border-top: 1px solid var(--line);
}
.arc {
    --arc: var(--gold);
    --arc-soft: rgba(224, 176, 83, 0.12);
    display: flex;
    align-items: center;
    gap: 44px;
    margin-bottom: 26px;
    padding: 36px 42px;
    background: linear-gradient(135deg, rgba(24, 49, 39, 0.55), rgba(13, 27, 22, 0.35));
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    transition: border-color 0.35s ease, transform 0.35s var(--ease), box-shadow 0.35s ease;
}
.arc:nth-child(1) { --arc: var(--gold); --arc-soft: rgba(224, 176, 83, 0.12); }
.arc:nth-child(2) { --arc: var(--emerald); --arc-soft: rgba(61, 220, 151, 0.13); }
.arc:nth-child(3) { --arc: var(--teal); --arc-soft: rgba(78, 205, 196, 0.13); }
.arc:nth-child(4) { --arc: var(--rose); --arc-soft: rgba(232, 133, 122, 0.13); }
.arc::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 25% 0%, var(--arc-soft), transparent 60%);
    opacity: 0.75;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
.arc:nth-child(even)::before {
    background: radial-gradient(ellipse at 75% 0%, var(--arc-soft), transparent 60%);
}
.arc:hover {
    border-color: var(--line-2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.arc:hover::before {
    opacity: 1;
}
.arc:last-child {
    margin-bottom: 0;
}
.arc:nth-child(even) .arc-media {
    order: 2;
}
.arc-media {
    flex: 0 0 340px;
    border-radius: var(--radius-l);
    overflow: hidden;
    border: 1px solid var(--arc);
    box-shadow:
        0 20px 48px rgba(2, 8, 6, 0.6),
        0 0 40px var(--arc-soft);
    transition: transform 0.45s var(--ease), box-shadow 0.45s ease;
    position: relative;
    z-index: 1;
}
.arc-media img {
    display: block;
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}
.arc:hover .arc-media {
    transform: translateY(-6px) rotate(1deg);
    box-shadow:
        0 28px 60px rgba(2, 8, 6, 0.7),
        0 0 56px var(--arc-soft);
}
.arc:hover .arc-media img {
    transform: scale(1.05);
}
.arc-body {
    flex: 1;
    min-width: 0;
    position: relative;
    z-index: 1;
}
.arc-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 14px;
}
.arc-index {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--arc);
    opacity: 0.55;
    line-height: 1;
    letter-spacing: 1px;
}
.arc-tag {
    display: inline-block;
    font-size: 0.72rem;
    color: var(--arc);
    background: var(--arc-soft);
    border: 1px solid var(--arc);
    padding: 3px 14px;
    border-radius: 20px;
    letter-spacing: 1.5px;
    font-weight: 600;
    transition: box-shadow 0.3s ease;
}
.arc:hover .arc-tag {
    box-shadow: 0 0 16px var(--arc-soft);
}
.arc-body h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 12px;
    letter-spacing: 1px;
    font-family: var(--font-display);
}
.arc-body p {
    font-size: 0.92rem;
    color: var(--text-1);
    line-height: 1.9;
    letter-spacing: 0.2px;
    max-width: 600px;
}

.mechanics {
    padding: 90px 0 70px;
    background: var(--bg-1);
    border-top: 1px solid var(--line);
}
.mechanics-intro {
    font-size: 0.98rem;
    color: var(--text-1);
    line-height: 1.95;
    max-width: 820px;
    margin-bottom: 48px;
    letter-spacing: 0.3px;
}
.mechanics-intro .em {
    color: var(--gold-soft);
    font-weight: 600;
}
.timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}
.stage {
    position: relative;
    text-align: center;
    padding: 26px 18px 28px;
    background: rgba(24, 49, 39, 0.5);
    border: 1px solid var(--line);
    border-radius: var(--radius-m);
    transition: all 0.35s var(--ease);
}
.stage::before {
    content: '';
    position: absolute;
    top: 49px;
    left: -50%;
    right: -50%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--line-2), transparent);
    z-index: 0;
}
.stage:first-child::before { left: 50%; }
.stage:last-child::before { right: 50%; }
.stage:hover {
    border-color: rgba(224, 176, 83, 0.4);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.stage-no {
    position: relative;
    z-index: 2;
    width: 46px;
    height: 46px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: var(--bg-2);
    border: 2px solid var(--line-3);
    color: var(--gold);
    font-weight: 800;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.5px;
    box-shadow: 0 0 18px rgba(224, 176, 83, 0.2);
    transition: all 0.35s var(--ease);
}
.stage:hover .stage-no {
    border-color: var(--gold);
    background: var(--grad-primary);
    color: #0d1b16;
    box-shadow: 0 0 26px rgba(224, 176, 83, 0.45);
    transform: scale(1.08);
}
.stage:nth-child(2) .stage-no { color: var(--emerald); }
.stage:nth-child(3) .stage-no { color: var(--rose); }
.stage:nth-child(4) .stage-no { color: var(--teal); }
.stage:nth-child(2):hover .stage-no { background: linear-gradient(135deg, #3ddc97, #4ecdc4); color: #0d1b16; }
.stage:nth-child(3):hover .stage-no { background: linear-gradient(135deg, #e8857a, #f2d492); color: #0d1b16; }
.stage:nth-child(4):hover .stage-no { background: linear-gradient(135deg, #4ecdc4, #3ddc97); color: #0d1b16; }
.stage h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--cream);
    margin-bottom: 10px;
    letter-spacing: 0.8px;
    font-family: var(--font-display);
}
.stage p {
    font-size: 0.86rem;
    color: var(--text-2);
    line-height: 1.8;
    letter-spacing: 0.2px;
}

.ethos {
    padding: 90px 0 70px;
    background: var(--bg-2);
    border-top: 1px solid var(--line);
}
.ethos-text {
    font-size: 0.98rem;
    color: var(--text-1);
    line-height: 1.95;
    letter-spacing: 0.3px;
    max-width: 860px;
}
.ethos-text .em {
    color: var(--gold-soft);
    font-weight: 600;
}
.alert {
    margin-top: 32px;
    max-width: 860px;
    background: linear-gradient(135deg, rgba(232, 133, 122, 0.09), rgba(224, 176, 83, 0.07));
    border: 1px solid rgba(232, 133, 122, 0.32);
    border-left: 4px solid var(--rose);
    border-radius: var(--radius-m);
    padding: 24px 28px;
    transition: all 0.35s ease;
}
.alert:hover {
    box-shadow: 0 0 32px rgba(232, 133, 122, 0.15);
    transform: translateY(-2px);
}
.alert-title {
    font-weight: 700;
    color: var(--rose);
    letter-spacing: 1.5px;
    margin-bottom: 10px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 9px;
}
.alert-title i {
    text-shadow: 0 0 14px rgba(232, 133, 122, 0.6);
}
.alert p {
    font-size: 0.9rem;
    color: var(--text-1);
    line-height: 1.85;
}

.craft {
    padding: 90px 0 70px;
    background: var(--bg-1);
    border-top: 1px solid var(--line);
}
.craft-text {
    font-size: 0.98rem;
    color: var(--text-1);
    line-height: 1.95;
    letter-spacing: 0.3px;
    max-width: 860px;
}
.craft-text .em {
    color: var(--gold-soft);
    font-weight: 600;
}
.tones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 22px;
    margin-top: 38px;
}
.tone {
    background: rgba(24, 49, 39, 0.55);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    overflow: hidden;
    transition: all 0.35s var(--ease);
    position: relative;
}
.tone::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--grad-primary);
    opacity: 0;
    transition: opacity 0.35s ease;
}
.tone:hover {
    transform: translateY(-6px);
    border-color: var(--line-2);
    box-shadow: var(--shadow-card-hover);
}
.tone:hover::before {
    opacity: 1;
}
.tone-strip {
    height: 66px;
    display: flex;
    align-items: center;
    padding: 0 26px;
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 2px;
}
.tone-strip i {
    font-size: 1rem;
    filter: drop-shadow(0 0 8px currentColor);
}
.tone-strip.bright {
    background: linear-gradient(120deg, rgba(224, 176, 83, 0.32), rgba(61, 220, 151, 0.16));
    color: #f6e3b4;
}
.tone-strip.dark {
    background: linear-gradient(120deg, #1c3a2e, #122920);
    color: #bfe8d4;
}
.tone-body {
    padding: 24px 26px 28px;
}
.tone-body h3 {
    font-size: 1.05rem;
    margin-bottom: 10px;
    color: var(--cream);
    letter-spacing: 0.8px;
    font-family: var(--font-display);
}
.tone-body p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.85;
    letter-spacing: 0.2px;
}

.reel {
    padding: 90px 0 75px;
    background: var(--bg-2);
    border-top: 1px solid var(--line);
}
.reel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
}
.shot {
    position: relative;
    border-radius: var(--radius-m);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-card);
    aspect-ratio: 1/1;
    cursor: pointer;
    background: var(--bg-3);
    transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s var(--ease);
}
.shot.tall {
    aspect-ratio: 1/2.2;
}
.shot.tall .shot-cap {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    left: auto;
    right: 12px;
    bottom: auto;
    top: 12px;
    letter-spacing: 1.5px;
}
.shot::before {
    content: '';
    position: absolute;
    inset: 10px;
    border: 1px solid rgba(224, 176, 83, 0);
    border-radius: 10px;
    z-index: 3;
    transition: border-color 0.35s ease;
    pointer-events: none;
}
.shot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s var(--ease);
}
.shot:hover {
    border-color: rgba(224, 176, 83, 0.45);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.shot:hover::before {
    border-color: rgba(224, 176, 83, 0.55);
}
.shot:hover img {
    transform: scale(1.07);
}
.shot::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(5, 12, 9, 0.62));
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}
.shot:hover::after {
    opacity: 1;
}
.shot-cap {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 12px;
    font-size: 0.78rem;
    color: #f7f1e3;
    letter-spacing: 0.5px;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.4s;
    z-index: 2;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}
.shot:hover .shot-cap {
    opacity: 1;
    transform: none;
}

.epilogue {
    padding: 84px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 120%, rgba(224, 176, 83, 0.13) 0%, transparent 55%),
        radial-gradient(ellipse at 20% 80%, rgba(61, 220, 151, 0.11) 0%, transparent 55%),
        linear-gradient(170deg, #0a1511 0%, #0e211a 60%, #0a1511 100%);
    border-top: 1px solid var(--line);
}
.epilogue .shell {
    max-width: 820px;
    position: relative;
    z-index: 2;
}
.epilogue-mark {
    font-size: 3.2rem;
    color: var(--gold);
    opacity: 0.55;
    margin-bottom: 8px;
    display: block;
    line-height: 1;
    text-shadow: 0 0 24px rgba(224, 176, 83, 0.5);
    animation: markGlow 3.4s ease-in-out infinite;
}
@keyframes markGlow {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50% { opacity: 0.75; transform: scale(1.06); }
}
.epilogue-quote {
    font-size: 1.08rem;
    color: var(--text-1);
    line-height: 2.05;
    letter-spacing: 0.6px;
}
.epilogue-quote .hl {
    background: linear-gradient(90deg, #f2d492, #e0b053);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-weight: 700;
    filter: drop-shadow(0 0 16px rgba(224, 176, 83, 0.35));
}
.epilogue-note {
    margin-top: 24px;
    font-size: 0.82rem;
    color: var(--text-3);
    letter-spacing: 0.8px;
}

.file {
    padding: 70px 0 80px;
    background: var(--bg-1);
    border-top: 1px solid var(--line);
}
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px 44px;
}
.file-item {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
    padding: 15px 0;
    border-bottom: 1px dashed var(--line-2);
    transition: border-color 0.2s ease;
}
.file-item:hover {
    border-bottom-color: var(--gold);
}
.file-item .label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--text-3);
    letter-spacing: 2px;
    font-weight: 600;
    flex: 0 0 auto;
}
.file-item .value {
    font-size: 0.94rem;
    color: var(--text-1);
    letter-spacing: 0.3px;
    text-align: right;
    flex: 1;
    min-width: 0;
}
.file-item .value i {
    color: var(--gold);
    margin-right: 6px;
}

footer {
    padding: 44px 0 40px;
    background: var(--bg-0);
    border-top: 1px solid var(--line);
    font-size: 0.8rem;
    color: var(--text-2);
    letter-spacing: 0.5px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr 1.5fr;
    gap: 34px;
    text-align: left;
}
.footer-head {
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--gold-soft);
    letter-spacing: 2.5px;
    margin-bottom: 12px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-head::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 8px rgba(224, 176, 83, 0.7);
    flex: 0 0 auto;
}
.footer-brand {
    min-width: 0;
}
.footer-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--cream);
    letter-spacing: 1.5px;
    margin-bottom: 10px;
}
.footer-crown {
    color: var(--gold);
    margin-right: 6px;
    font-size: 0.8rem;
}
.footer-desc {
    font-size: 0.78rem;
    line-height: 1.9;
    color: var(--text-2);
}
.footer-links p:last-child {
    line-height: 2.1;
}
.footer-links a {
    color: var(--text-2);
    text-decoration: none;
    transition: color 0.2s ease;
    margin-right: 10px;
    white-space: nowrap;
}
.footer-links a:hover {
    color: var(--gold-soft);
}
.footer-note {
    font-size: 0.76rem;
    line-height: 1.9;
    color: var(--text-3);
}

@media (max-width: 960px) {
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        position: absolute;
        top: 66px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: rgba(7, 17, 14, 0.98);
        border-bottom: 1px solid var(--line-2);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(-8px);
        transition: max-height 0.45s var(--ease), opacity 0.3s ease, transform 0.35s var(--ease);
    }
    .nav-links.open {
        max-height: 460px;
        opacity: 1;
        transform: none;
        padding: 8px 28px 18px;
    }
    .nav-links a {
        padding: 12px 0;
        border-bottom: 1px solid var(--line);
        display: block;
    }
    .nav-links a:last-child {
        border-bottom: none;
    }
    .masthead {
        padding: 130px 0 70px;
    }
    .arc {
        flex-direction: column;
        gap: 24px;
        text-align: left;
        padding: 26px 22px;
    }
    .arc:nth-child(even) .arc-media {
        order: 0;
    }
    .arc-media {
        flex: 0 0 auto;
        width: 100%;
        max-width: 420px;
    }
    .arc-body {
        width: 100%;
    }
    .stat-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .tones {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}
@media (max-width: 520px) {
    .shell {
        padding: 0 16px;
    }
    .tagline::before,
    .tagline::after {
        width: 22px;
        margin: 0 10px;
    }
    .cta {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
    .cover {
        width: 200px;
    }
    .fact {
        font-size: 0.78rem;
    }
    .stat-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .arc-index {
        font-size: 2rem;
    }
    .arc-body h3 {
        font-size: 1.25rem;
    }
    .timeline {
        grid-template-columns: 1fr;
    }
    .stage::before {
        display: none;
    }
    .reel-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 3px;
    }
    .file-item .value {
        text-align: left;
    }
    .footer-grid {
        padding: 0 2px;
    }
    #jumpTop {
        right: 16px;
        bottom: 20px;
        width: 42px;
        height: 42px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}