@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;600;700;900&family=ZCOOL+XiaoWei&display=swap');

:root {
    --ink: #07090a;
    --ink-soft: #101417;
    --panel: rgba(13, 17, 18, 0.78);
    --line: rgba(230, 190, 100, 0.22);
    --gold: #d6b35a;
    --gold-soft: #f0d990;
    --jade: #5fb8a8;
    --crimson: #9f3f2f;
    --text: #f4efe3;
    --muted: #bcb2a2;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
    box-sizing: border-box;
}

img {
    max-width: 100%;
    height: auto;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Noto Serif SC', 'Songti SC', serif;
    background:
        linear-gradient(180deg, rgba(7, 9, 10, 0.92), rgba(10, 14, 14, 0.98)),
        var(--ink);
    color: var(--text);
    overflow-x: hidden;
}

body.menu-open,
body.feedback-open {
    overflow: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.4;
    background-image:
        linear-gradient(rgba(214, 179, 90, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(214, 179, 90, 0.035) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
}

body.feedback-open::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 210;
    background: rgba(0, 0, 0, 0.68);
    backdrop-filter: blur(8px);
}

a {
    color: inherit;
}

.container {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 200;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--jade), var(--gold), var(--crimson));
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 150;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 72px;
    padding: 12px clamp(18px, 4vw, 56px);
    border-bottom: 1px solid rgba(214, 179, 90, 0.16);
    background: rgba(7, 9, 10, 0.56);
    backdrop-filter: blur(18px);
    transition: background 220ms ease, border-color 220ms ease, min-height 220ms ease;
}

.navbar.is-scrolled {
    min-height: 62px;
    background: rgba(7, 9, 10, 0.9);
    border-color: rgba(214, 179, 90, 0.28);
}

.nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    text-decoration: none;
}

.brand-seal {
    display: grid;
    place-items: center;
    width: 38px;
    aspect-ratio: 1;
    border: 1px solid var(--gold);
    border-radius: 50%;
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    box-shadow: 0 0 28px rgba(214, 179, 90, 0.16);
}

.brand-text {
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.2rem;
    letter-spacing: 0.16em;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: clamp(16px, 2.6vw, 34px);
}

.nav-links a {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 6px;
    color: var(--muted);
    font-size: 0.94rem;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: color 180ms ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -8px;
    height: 1px;
    transform: scaleX(0);
    transform-origin: center;
    background: var(--gold);
    transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
    color: var(--gold-soft);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
    transform: scaleX(1);
}

.nav-toggle {
    display: none;
    width: 44px;
    aspect-ratio: 1;
    place-items: center;
    border: 1px solid rgba(214, 179, 90, 0.34);
    border-radius: 50%;
    background: rgba(7, 9, 10, 0.68);
    color: var(--gold-soft);
    cursor: pointer;
    touch-action: manipulation;
}

.nav-toggle svg,
.feedback-float svg,
.btn svg,
.icon-button svg,
.principle-card svg,
.feedback-panel > svg,
.supporter-field-head svg,
.sponsor-card-head svg,
.sponsor-note svg,
.contact-chip svg {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.feedback-float {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 130;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 48px;
    padding: 0 18px;
    border: 1px solid rgba(214, 179, 90, 0.48);
    border-radius: 999px;
    background: rgba(7, 9, 10, 0.82);
    color: var(--gold-soft);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
    font-family: inherit;
    letter-spacing: 0.08em;
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(14px);
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.feedback-float:hover {
    transform: translateY(-2px);
    border-color: var(--gold);
    background: rgba(214, 179, 90, 0.12);
}

.hero {
    position: relative;
    display: grid;
    align-items: center;
    min-height: 92svh;
    padding: 112px 0 86px;
    overflow: hidden;
    isolation: isolate;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
    background:
        linear-gradient(90deg, rgba(7, 9, 10, 0.82), rgba(7, 9, 10, 0.3) 44%, rgba(7, 9, 10, 0.78)),
        linear-gradient(180deg, rgba(7, 9, 10, 0.22), rgba(7, 9, 10, 0.62) 68%, var(--ink) 100%),
        url('../images/xmxz-hero.png') center / cover no-repeat;
    transform: scale(1.02);
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    inset: auto;
    z-index: -1;
    pointer-events: none;
}

.hero::before {
    left: 50%;
    top: 50%;
    width: min(72vw, 780px);
    aspect-ratio: 1;
    border: 1px solid rgba(214, 179, 90, 0.18);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow:
        inset 0 0 80px rgba(214, 179, 90, 0.08),
        0 0 90px rgba(95, 184, 168, 0.08);
}

.hero::after {
    left: 0;
    right: 0;
    bottom: 0;
    height: 170px;
    background: linear-gradient(180deg, transparent, var(--ink));
}

.hero-content {
    width: min(900px, calc(100% - 40px));
    margin: 0 auto;
    text-align: center;
}

.eyebrow,
.section-kicker {
    margin: 0 0 16px;
    color: var(--gold-soft);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.24em;
    text-transform: uppercase;
}

.hero-title {
    margin: 0;
    font-family: 'ZCOOL XiaoWei', serif;
    font-weight: 400;
}

.hero-title span {
    display: block;
    color: var(--gold-soft);
    font-size: clamp(3.6rem, 11vw, 8.6rem);
    line-height: 0.95;
    letter-spacing: 0.12em;
    text-shadow: 0 18px 50px rgba(0, 0, 0, 0.56), 0 0 34px rgba(214, 179, 90, 0.28);
}

.hero-title small {
    display: block;
    margin-top: 18px;
    color: var(--text);
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.08rem, 2.2vw, 1.6rem);
    font-weight: 600;
    letter-spacing: 0.28em;
}

.hero-desc {
    width: min(650px, 100%);
    margin: 26px auto 0;
    color: rgba(244, 239, 227, 0.88);
    font-size: clamp(1rem, 1.5vw, 1.16rem);
    line-height: 2;
    text-wrap: pretty;
}

.hero-actions,
.book-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 0 22px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

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

.btn:disabled,
.contact-chip:disabled,
.icon-button:disabled {
    opacity: 0.58;
    cursor: wait;
    transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold-soft), var(--gold));
    color: #161007;
    box-shadow: 0 18px 42px rgba(214, 179, 90, 0.22);
}

.btn-primary:hover {
    box-shadow: 0 22px 48px rgba(214, 179, 90, 0.3);
}

.btn-ghost,
.btn-outline {
    border-color: rgba(214, 179, 90, 0.42);
    background: rgba(7, 9, 10, 0.36);
    color: var(--gold-soft);
}

.btn-ghost:hover,
.btn-outline:hover {
    border-color: var(--gold);
    background: rgba(214, 179, 90, 0.1);
}

.hero-metrics {
    position: absolute;
    left: 50%;
    bottom: 18px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: min(820px, calc(100% - 40px));
    transform: translateX(-50%);
    border: 1px solid rgba(214, 179, 90, 0.2);
    background: rgba(7, 9, 10, 0.48);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.hero-metrics div {
    padding: 16px 18px;
    text-align: center;
}

.hero-metrics div + div {
    border-left: 1px solid rgba(214, 179, 90, 0.16);
}

.hero-metrics strong,
.hero-metrics span {
    display: block;
}

.hero-metrics strong {
    color: var(--gold-soft);
    font-size: 1rem;
    letter-spacing: 0.08em;
}

.hero-metrics span {
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
}

.section {
    position: relative;
    padding: clamp(78px, 10vw, 128px) 0;
    scroll-margin-top: 72px;
}

.section-photo {
    display: grid;
    align-items: center;
    min-height: 92svh;
    overflow: hidden;
    isolation: isolate;
    background: var(--ink);
}

.section-photo::before,
.section-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.section-photo::before {
    background:
        linear-gradient(90deg, rgba(7, 9, 10, 0.72), rgba(7, 9, 10, 0.18) 48%, rgba(7, 9, 10, 0.64)),
        linear-gradient(180deg, rgba(7, 9, 10, 0.14), rgba(7, 9, 10, 0.46)),
        var(--section-image) var(--section-position, center) / cover no-repeat;
    transform: scale(1.02);
}

.section-photo::after {
    background:
        radial-gradient(circle at 50% 32%, rgba(214, 179, 90, 0.08), transparent 36%),
        linear-gradient(180deg, rgba(7, 9, 10, 0.78) 0%, transparent 12%, transparent 88%, rgba(7, 9, 10, 0.9) 100%);
}

.section-photo > .container {
    position: relative;
    z-index: 1;
}

.section-photo .section-heading,
.section-photo .book-copy,
.section-photo .feedback-copy,
.section-photo .supporters-intro,
.section-photo .contact-inner {
    text-shadow: 0 12px 34px rgba(0, 0, 0, 0.56);
}

.section-photo .principle-card,
.section-photo .path-step,
.section-photo .feedback-panel,
.section-photo .featured-supporter,
.section-photo .supporter-field,
.section-photo .sponsor-card,
.section-photo .sponsor-note {
    backdrop-filter: blur(12px);
}

.section-heading {
    width: min(720px, 100%);
    margin: 0 auto clamp(38px, 6vw, 64px);
    text-align: center;
}

.section-heading h2,
.book-copy h2,
.feedback-copy h2,
.supporters-intro h2,
.contact h2 {
    margin: 0;
    color: var(--text);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: clamp(2.1rem, 4vw, 3.8rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: 0.06em;
}

.section-heading p:not(.section-kicker) {
    margin: 18px auto 0;
    color: var(--muted);
    line-height: 1.9;
}

.about {
    --section-image: url('../images/xmxz-about.jpg');
    --section-position: center;
}

.principle-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.principle-card,
.path-step {
    border: 1px solid var(--line);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
        var(--panel);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
}

.principle-card {
    min-height: 280px;
    padding: 30px;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.principle-card:hover,
.path-step:hover {
    transform: translateY(-4px);
    border-color: rgba(214, 179, 90, 0.48);
}

.principle-card svg {
    width: 32px;
    height: 32px;
    color: var(--jade);
}

.principle-card h3,
.path-step h3 {
    margin: 24px 0 12px;
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.55rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.principle-card p,
.path-step p,
.book-lead,
.feature-list,
.book-stats dd {
    color: var(--muted);
    line-height: 1.9;
}

.principle-card p,
.path-step p {
    margin: 0;
    font-size: 0.96rem;
}

.books {
    --section-image: url('../images/xmxz-book.jpg');
    --section-position: center;
}

.book-layout {
    display: grid;
    grid-template-columns: minmax(260px, 0.78fr) minmax(0, 1.22fr);
    gap: clamp(44px, 8vw, 96px);
    align-items: center;
}

.book-visual {
    display: grid;
    place-items: center;
    min-height: 420px;
    perspective: 1000px;
}

.book-photo {
    position: relative;
    width: min(560px, 100%);
    aspect-ratio: 16 / 10;
    margin: 0;
    overflow: hidden;
    border: 1px solid rgba(214, 179, 90, 0.34);
    border-radius: 8px;
    background: rgba(7, 9, 10, 0.72);
    box-shadow: 28px 34px 80px rgba(0, 0, 0, 0.48);
    transform: rotateY(-8deg) rotateX(2deg);
    transition: transform 320ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.book-photo::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(214, 179, 90, 0.22);
    border-radius: 7px;
    pointer-events: none;
}

.book-photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-visual:hover .book-photo {
    border-color: rgba(214, 179, 90, 0.58);
    box-shadow: 34px 40px 96px rgba(0, 0, 0, 0.54);
    transform: rotateY(-3deg) rotateX(1deg) translateY(-6px);
}

.book-3d {
    position: relative;
    width: min(280px, 70vw);
    height: 390px;
    transform-style: preserve-3d;
    transform: rotateY(-18deg) rotateX(4deg);
    transition: transform 320ms ease;
}

.book-visual:hover .book-3d {
    transform: rotateY(-10deg) rotateX(2deg) translateY(-6px);
}

.book-front {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 2px solid rgba(214, 179, 90, 0.76);
    border-radius: 8px 5px 5px 8px;
    background:
        linear-gradient(135deg, rgba(214, 179, 90, 0.14), transparent 24%),
        radial-gradient(circle at 50% 42%, rgba(95, 184, 168, 0.12), transparent 32%),
        linear-gradient(135deg, #15100b, #2a1e14 48%, #0b0c0b);
    box-shadow: 28px 34px 80px rgba(0, 0, 0, 0.48);
}

.book-front::before {
    content: '';
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(214, 179, 90, 0.34);
    border-radius: 6px;
}

.book-front::after {
    content: '';
    position: absolute;
    width: 210px;
    aspect-ratio: 1;
    border: 1px solid rgba(214, 179, 90, 0.18);
    border-radius: 50%;
    box-shadow:
        0 0 0 34px rgba(214, 179, 90, 0.03),
        inset 0 0 40px rgba(214, 179, 90, 0.08);
}

.book-title-vertical {
    position: relative;
    z-index: 1;
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 2.24rem;
    letter-spacing: 0.42em;
    writing-mode: vertical-rl;
}

.book-mark {
    position: absolute;
    inset: auto auto 48px 38px;
    z-index: 1;
    color: rgba(244, 239, 227, 0.14);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 5.8rem;
}

.book-author {
    position: absolute;
    right: 26px;
    bottom: 28px;
    color: rgba(214, 179, 90, 0.76);
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    writing-mode: vertical-rl;
}

.book-spine {
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: -38px;
    width: 38px;
    border: 1px solid rgba(214, 179, 90, 0.42);
    border-right: 0;
    border-radius: 6px 0 0 6px;
    background: linear-gradient(90deg, #070707, #1c140d);
    transform: rotateY(90deg);
    transform-origin: right;
}

.book-copy h2 {
    margin-bottom: 18px;
}

.book-lead {
    margin: 0 0 28px;
    font-size: 1.02rem;
}

.book-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin: 0 0 28px;
    border: 1px solid rgba(214, 179, 90, 0.18);
    background: rgba(214, 179, 90, 0.12);
}

.book-stats div {
    padding: 18px;
    background: rgba(7, 9, 10, 0.78);
}

.book-stats dt {
    color: var(--gold-soft);
    font-weight: 700;
    letter-spacing: 0.12em;
}

.book-stats dd {
    margin: 8px 0 0;
    font-size: 0.86rem;
}

.feature-list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    position: relative;
    padding-left: 22px;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.78em;
    width: 7px;
    aspect-ratio: 1;
    border: 1px solid var(--gold);
    transform: rotate(45deg);
}

.book-actions {
    justify-content: flex-start;
}

.path {
    --section-image: url('../images/xmxz-path.jpg');
    --section-position: center;
}

.path-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.path-step {
    min-height: 230px;
    padding: 26px;
    transition: transform 180ms ease, border-color 180ms ease;
}

.path-step span {
    color: rgba(95, 184, 168, 0.9);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 2.2rem;
}

.feedback {
    --section-image: url('../images/xmxz-feedback.jpg');
    --section-position: center;
}

.feedback-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
    gap: clamp(28px, 6vw, 72px);
    align-items: center;
}

.feedback-copy p:not(.section-kicker) {
    max-width: 680px;
    margin: 22px 0 0;
    color: var(--muted);
    line-height: 1.9;
}

.feedback-panel {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012)),
        rgba(7, 9, 10, 0.62);
    box-shadow: var(--shadow);
}

.feedback-panel > svg {
    width: 34px;
    height: 34px;
    color: var(--jade);
}

.feedback-panel h3 {
    margin: 20px 0 12px;
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.feedback-panel p {
    margin: 0 0 22px;
    color: var(--muted);
    line-height: 1.85;
}

.feedback-panel-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.feedback-panel .copy-state {
    display: inline-block;
    margin-top: 12px;
    vertical-align: middle;
}

.feedback-dialog {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    z-index: 220;
    width: min(640px, calc(100% - 32px));
    max-height: min(86svh, 760px);
    margin: 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(214, 179, 90, 0.34);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.014)),
        #0a0e0f;
    color: var(--text);
    box-shadow: 0 26px 90px rgba(0, 0, 0, 0.58);
    transform: translate(-50%, -50%);
}

.feedback-dialog[open],
.feedback-dialog.is-open {
    display: block;
}

.feedback-dialog::backdrop {
    background: rgba(0, 0, 0, 0.68);
    backdrop-filter: blur(8px);
}

.feedback-form {
    display: grid;
    gap: 18px;
    max-height: inherit;
    padding: 28px;
    overflow-y: auto;
}

.feedback-dialog-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
}

.feedback-dialog-head h2 {
    margin: 0;
    color: var(--text);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: clamp(2rem, 7vw, 3rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: 0.06em;
}

.icon-button {
    display: grid;
    place-items: center;
    width: 42px;
    aspect-ratio: 1;
    border: 1px solid rgba(214, 179, 90, 0.34);
    border-radius: 50%;
    background: rgba(7, 9, 10, 0.68);
    color: var(--gold-soft);
    cursor: pointer;
}

.feedback-field {
    display: grid;
    gap: 8px;
    color: var(--gold-soft);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.feedback-field input,
.feedback-field select,
.feedback-field textarea {
    width: 100%;
    border: 1px solid rgba(214, 179, 90, 0.28);
    border-radius: 8px;
    background: rgba(7, 9, 10, 0.72);
    color: var(--text);
    font: inherit;
    letter-spacing: 0;
    outline: none;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.feedback-field input,
.feedback-field select {
    min-height: 46px;
    padding: 0 14px;
}

.feedback-field textarea {
    min-height: 150px;
    padding: 12px 14px;
    resize: vertical;
}

.feedback-field input:focus,
.feedback-field select:focus,
.feedback-field textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(214, 179, 90, 0.12);
}

.feedback-field ::placeholder {
    color: rgba(188, 178, 162, 0.68);
}

.feedback-trap {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.feedback-dialog-actions,
.feedback-fallback {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.feedback-status {
    min-height: 24px;
    color: var(--jade);
    line-height: 1.7;
}

.feedback-status.is-error {
    color: #ffb3a9;
}

.feedback-fallback {
    padding-top: 8px;
    border-top: 1px solid rgba(214, 179, 90, 0.14);
    color: var(--muted);
}

.supporters {
    --section-image: url('../images/xmxz-sponsor.jpg');
    --section-position: center;
}

.supporters-layout {
    display: grid;
    gap: 30px;
}

.supporters-intro {
    width: min(780px, 100%);
    margin: 0 auto;
    text-align: center;
}

.supporters-intro h2 {
    font-size: 3.35rem;
}

.supporters-intro p:not(.section-kicker) {
    margin: 18px auto 0;
    color: var(--muted);
    line-height: 1.9;
}

.supporters-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: min(700px, 100%);
    margin: 28px auto 0;
    border: 1px solid rgba(214, 179, 90, 0.2);
    background: rgba(214, 179, 90, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}

.supporters-stats div {
    padding: 16px 14px;
    background: rgba(7, 9, 10, 0.68);
}

.supporters-stats div + div {
    border-left: 1px solid rgba(214, 179, 90, 0.16);
}

.supporters-stats strong,
.supporters-stats span {
    display: block;
}

.supporters-stats strong {
    color: var(--gold-soft);
    font-size: 1.05rem;
    letter-spacing: 0.08em;
}

.supporters-stats span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 0.78rem;
    letter-spacing: 0.14em;
}

.featured-supporters {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    width: min(940px, 100%);
    margin: 0 auto;
}

.featured-supporter {
    position: relative;
    min-height: 108px;
    padding: 18px;
    overflow: hidden;
    border: 1px solid rgba(214, 179, 90, 0.24);
    border-radius: 8px;
    background:
        linear-gradient(135deg, rgba(95, 184, 168, 0.13), transparent 34%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012)),
        rgba(9, 13, 14, 0.76);
    box-shadow: 0 18px 52px rgba(0, 0, 0, 0.28);
}

.featured-supporter::before {
    content: attr(data-initial);
    position: absolute;
    right: 12px;
    bottom: -26px;
    color: rgba(214, 179, 90, 0.1);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 5.4rem;
    line-height: 1;
}

.featured-supporter strong,
.featured-supporter span {
    position: relative;
    z-index: 1;
    display: block;
}

.featured-supporter strong {
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.42rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    overflow-wrap: anywhere;
}

.featured-supporter span {
    margin-top: 10px;
    color: var(--muted);
    font-size: 0.88rem;
    letter-spacing: 0.12em;
}

.supporter-field {
    position: relative;
    width: min(1060px, 100%);
    margin: 0 auto;
    padding: 26px;
    overflow: hidden;
    border: 1px solid rgba(214, 179, 90, 0.26);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012)),
        rgba(8, 12, 13, 0.78);
    box-shadow: var(--shadow);
}

.supporter-field::before,
.supporter-field::after {
    content: '';
    position: absolute;
    pointer-events: none;
}

.supporter-field::before {
    inset: 16px;
    border: 1px solid rgba(214, 179, 90, 0.14);
    border-radius: 6px;
}

.supporter-field::after {
    left: 50%;
    top: 50%;
    width: min(640px, 86vw);
    aspect-ratio: 1;
    border: 1px solid rgba(214, 179, 90, 0.12);
    border-radius: 50%;
    background:
        repeating-conic-gradient(from 0deg, rgba(214, 179, 90, 0.12) 0deg 1deg, transparent 1deg 12deg),
        radial-gradient(circle, transparent 56%, rgba(95, 184, 168, 0.08) 57%, transparent 58%);
    opacity: 0.4;
    transform: translate(-50%, -50%);
    animation: formationTurn 48s linear infinite;
}

.supporter-field-head {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--gold-soft);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.14em;
}

.supporter-field-head span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.supporter-field-head span:last-child {
    color: var(--muted);
    font-size: 0.78rem;
}

.supporter-field-head svg {
    color: var(--jade);
}

.supporter-list {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    gap: 10px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.supporter-name {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 54px;
    padding: 10px 12px;
    overflow: hidden;
    border: 1px solid rgba(214, 179, 90, 0.2);
    border-radius: 6px;
    background:
        linear-gradient(135deg, rgba(214, 179, 90, 0.08), transparent 46%),
        rgba(7, 9, 10, 0.64);
    color: rgba(244, 239, 227, 0.92);
    font-size: 0.95rem;
    line-height: 1.35;
    text-align: center;
    overflow-wrap: anywhere;
    transition: transform 180ms ease, border-color 180ms ease, color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.supporter-name::before {
    content: '';
    position: absolute;
    top: -30%;
    bottom: -30%;
    left: -60%;
    width: 46%;
    background: linear-gradient(90deg, transparent, rgba(240, 217, 144, 0.34), transparent);
    transform: translateX(-120%) skewX(-18deg);
    transition: transform 620ms ease;
}

.supporter-name:hover {
    z-index: 2;
    color: var(--gold-soft);
    border-color: rgba(240, 217, 144, 0.64);
    background:
        linear-gradient(135deg, rgba(95, 184, 168, 0.12), transparent 42%),
        rgba(16, 20, 17, 0.86);
    box-shadow: 0 12px 34px rgba(214, 179, 90, 0.12);
    transform: translateY(-3px);
}

.supporter-name:hover::before {
    transform: translateX(420%) skewX(-18deg);
}

.js .featured-supporters .featured-supporter,
.js .supporter-field .supporter-name {
    opacity: 0;
    transform: translateY(16px) rotateX(8deg);
}

.js .featured-supporters.is-visible .featured-supporter,
.js .supporter-field.is-visible .supporter-name {
    animation: supporterRise 680ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    animation-delay: calc(var(--i) * 38ms);
}

#supporters:target .supporters-intro,
#supporters:target .featured-supporters,
#supporters:target .supporter-field {
    opacity: 1;
    transform: none;
}

#supporters:target .featured-supporters .featured-supporter,
#supporters:target .supporter-field .supporter-name {
    opacity: 1;
    transform: none;
    animation: supporterRise 680ms cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    animation-delay: calc(var(--i) * 38ms);
}

@keyframes supporterRise {
    from {
        opacity: 0;
        transform: translateY(16px) rotateX(8deg);
    }

    to {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}

@keyframes formationTurn {
    to {
        transform: translate(-50%, -50%) rotate(1turn);
    }
}

.sponsor {
    --section-image: url('../images/xmxz-sponsor.jpg');
    --section-position: center;
}

.sponsor-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(22px, 4vw, 42px);
    width: min(760px, 100%);
    margin: 0 auto;
}

.sponsor-card {
    display: flex;
    flex-direction: column;
    min-height: 330px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012)),
        rgba(10, 14, 15, 0.86);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
    align-items: center;
    text-align: center;
}

.sponsor-card-head {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    width: 100%;
    text-align: left;
}

.sponsor-card-head svg {
    width: 30px;
    height: 30px;
    margin-top: 3px;
    color: var(--jade);
}

.sponsor-card h3 {
    margin: 0;
    color: var(--gold-soft);
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.55rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.sponsor-card-head p,
.sponsor-path,
.sponsor-list {
    color: var(--muted);
    line-height: 1.8;
}

.sponsor-card-head p {
    margin: 8px 0 0;
    font-size: 0.92rem;
}

.sponsor-qr {
    position: relative;
    display: grid;
    place-items: center;
    width: min(128px, 100%);
    aspect-ratio: 1;
    margin: 24px auto 16px;
    overflow: hidden;
    border: 1px dashed rgba(214, 179, 90, 0.42);
    border-radius: 8px;
    background:
        linear-gradient(135deg, rgba(214, 179, 90, 0.12), transparent 28%),
        repeating-linear-gradient(45deg, rgba(214, 179, 90, 0.06) 0 8px, rgba(95, 184, 168, 0.045) 8px 16px),
        rgba(7, 9, 10, 0.72);
}

.sponsor-qr img {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.sponsor-qr span {
    color: rgba(244, 239, 227, 0.68);
    font-size: 0.92rem;
    letter-spacing: 0.12em;
}

.sponsor-qr.is-ready {
    padding: 10px;
    border-style: solid;
    background: #fff;
}

.sponsor-qr.is-ready img {
    display: block;
}

.sponsor-qr.is-ready span {
    display: none;
}

.sponsor-path {
    margin: auto 0 0;
    font-size: 0.78rem;
    word-break: break-all;
}

.sponsor-note {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    width: min(760px, 100%);
    margin: 28px auto 0;
    padding: 18px 20px;
    border: 1px solid rgba(214, 179, 90, 0.2);
    border-radius: 8px;
    background: rgba(7, 9, 10, 0.46);
    color: var(--muted);
}

.sponsor-note > svg {
    color: var(--jade);
}

.sponsor-note p {
    margin: 0;
    line-height: 1.8;
}

.contact {
    overflow: hidden;
    --section-image: url('../images/xmxz-contact.jpg');
    --section-position: center;
}

.contact-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.contact h2 {
    max-width: 720px;
}

.contact-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.contact-chip {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
    padding: 0 20px;
    border: 1px solid rgba(214, 179, 90, 0.38);
    border-radius: 999px;
    background: rgba(7, 9, 10, 0.5);
    color: var(--gold-soft);
    font: inherit;
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.contact-chip:hover {
    transform: translateY(-2px);
    border-color: var(--gold);
    background: rgba(214, 179, 90, 0.09);
}

.copy-state {
    min-width: 64px;
    color: var(--jade);
    font-size: 0.9rem;
}

.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 28px clamp(20px, 5vw, 56px);
    border-top: 1px solid rgba(214, 179, 90, 0.14);
    background: #07090a;
    color: rgba(244, 239, 227, 0.62);
    font-size: 0.86rem;
    letter-spacing: 0.1em;
}

.footer p {
    margin: 0;
}

.js [data-reveal] {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 700ms ease, transform 700ms ease;
}

.js [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
}

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

@media (max-width: 980px) {
    .principle-grid,
    .path-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .book-layout {
        grid-template-columns: 1fr;
    }

    .book-visual {
        min-height: 360px;
    }

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

    .book-actions {
        justify-content: center;
    }

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

    .contact-actions {
        justify-content: flex-start;
    }

    .feedback-inner {
        grid-template-columns: 1fr;
    }

    .featured-supporters {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .navbar {
        min-height: 64px;
        padding-inline: 18px;
    }

    .nav-toggle {
        display: grid;
    }

    .nav-links {
        position: fixed;
        top: 64px;
        left: 14px;
        right: 14px;
        display: grid;
        gap: 0;
        padding: 8px;
        border: 1px solid rgba(214, 179, 90, 0.26);
        border-radius: 8px;
        background: rgba(7, 9, 10, 0.96);
        box-shadow: var(--shadow);
        transform: translateY(-16px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 180ms ease, transform 180ms ease;
    }

    .nav-links.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links a {
        min-height: 48px;
        padding: 0 16px;
        border-radius: 6px;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-links a:hover,
    .nav-links a.is-active {
        background: rgba(214, 179, 90, 0.08);
    }
}

@media (max-width: 760px) {
    .section {
        scroll-margin-top: 64px;
    }

    .feedback-float {
        right: 14px;
        bottom: 14px;
        width: 48px;
        min-height: 48px;
        padding: 0;
    }

    .feedback-float span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .hero {
        min-height: 94svh;
        padding-top: 92px;
        padding-bottom: 142px;
    }

    .hero-title span {
        letter-spacing: 0.06em;
    }

    .hero-title small {
        letter-spacing: 0.12em;
    }

    .hero-metrics {
        bottom: 12px;
        grid-template-columns: 1fr;
    }

    .hero-metrics div {
        padding: 10px 12px;
    }

    .hero-metrics div + div {
        border-left: 0;
        border-top: 1px solid rgba(214, 179, 90, 0.16);
    }

    .section {
        padding-block: 72px;
    }

    .section-photo::before {
        background:
            linear-gradient(180deg, rgba(7, 9, 10, 0.62), rgba(7, 9, 10, 0.22) 42%, rgba(7, 9, 10, 0.58)),
            var(--section-image) var(--section-position, center) / cover no-repeat;
    }

    .section-photo::after {
        background:
            radial-gradient(circle at 50% 28%, rgba(214, 179, 90, 0.08), transparent 34%),
            linear-gradient(180deg, rgba(7, 9, 10, 0.74) 0%, transparent 10%, transparent 90%, rgba(7, 9, 10, 0.86) 100%);
    }

    .principle-grid,
    .path-grid,
    .book-stats,
    .supporters-stats {
        grid-template-columns: 1fr;
    }

    .supporters-stats div + div {
        border-top: 1px solid rgba(214, 179, 90, 0.16);
        border-left: 0;
    }

    .featured-supporters {
        grid-template-columns: 1fr;
    }

    .supporters-intro h2 {
        font-size: 2.35rem;
    }

    .supporter-field {
        padding: 20px 16px;
    }

    .supporter-field-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .supporter-list {
        grid-template-columns: repeat(auto-fit, minmax(116px, 1fr));
    }

    .principle-card,
    .path-step {
        min-height: auto;
    }

    .book-3d {
        width: 220px;
        height: 314px;
    }

    .book-title-vertical {
        font-size: 1.78rem;
    }

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

    .feedback-form {
        padding: 22px 18px;
    }
}

@media (max-width: 420px) {
    .container,
    .hero-content,
    .hero-metrics {
        width: min(100% - 28px, 1160px);
    }

    .brand-text {
        font-size: 1.05rem;
    }

    .eyebrow,
    .section-kicker {
        letter-spacing: 0.14em;
    }

    .btn,
    .contact-chip {
        width: 100%;
    }

    .hero {
        padding-top: 84px;
        padding-bottom: 132px;
    }

    .hero-desc {
        margin-top: 14px;
    }

    .section {
        padding-block: 62px;
    }

    .section-heading {
        margin-bottom: 28px;
    }

    .book-visual {
        min-height: auto;
    }

    .book-photo {
        transform: none;
    }

    .book-visual:hover .book-photo {
        transform: translateY(-4px);
    }

    .feedback-dialog {
        width: calc(100% - 24px);
        max-height: min(88svh, 720px);
    }

    .sponsor-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .sponsor-card {
        min-height: auto;
        padding: 16px 12px;
    }

    .feedback-panel {
        padding: 22px 18px;
    }

    .feedback-dialog-actions .btn,
    .feedback-fallback .contact-chip {
        width: 100%;
    }

    .sponsor-card-head {
        display: grid;
        justify-items: center;
        text-align: center;
        gap: 10px;
    }

    .sponsor-card h3 {
        font-size: 1.28rem;
    }

    .sponsor-card-head p {
        font-size: 0.78rem;
    }

    .sponsor-qr {
        width: min(100px, 100%);
    }
}