/* roulang page: index */
/* ==================== 设计变量 ==================== */
:root {
    /* 主色体系 */
    --c-primary: #c9a24b;
    --c-primary-soft: #e8d5a3;
    --c-primary-deep: #9a7b2f;
    --c-green: #2d4a3a;
    --c-green-deep: #1a3024;
    --c-bg: #0b0b0a;
    --c-bg-2: #121210;
    --c-bg-3: #1a1a17;
    --c-bg-4: #22221e;
    --c-text: #f2f0e9;
    --c-text-muted: #a9a79e;
    --c-text-faint: #6b6a62;
    --c-danger: #e5484d;
    --c-danger-soft: #fde8e8;
    --c-border: rgba(255, 255, 255, 0.08);
    --c-border-strong: rgba(255, 255, 255, 0.14);
    
    /* 圆角 */
    --r-sm: 8px;
    --r-md: 14px;
    --r-lg: 22px;
    --r-xl: 30px;
    --r-full: 9999px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.35);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.45);
    --shadow-lg: 0 20px 48px rgba(0,0,0,0.55);
    --shadow-glow: 0 0 20px rgba(201,162,75,0.25);
    
    /* 间距 */
    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 20px;
    --sp-6: 24px;
    --sp-8: 32px;
    --sp-10: 40px;
    --sp-12: 48px;
    --sp-16: 64px;
    --sp-20: 80px;
    --sp-24: 96px;
    
    /* 字体 */
    --font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Source Han Sans SC', sans-serif;
    --font-serif: 'Georgia', 'Noto Serif CJK SC', 'Source Han Serif SC', serif;
    
    /* 过渡 */
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    
    /* 容器 */
    --container-max: 1200px;
    --container-pad: 24px;
}

/* ==================== Reset / Base ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    line-height: 1.7;
    color: var(--c-text);
    background: var(--c-bg);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

article, section, nav, header, footer, main, aside {
    display: block;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border: none;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition), opacity var(--transition);
}

a:hover {
    opacity: 0.85;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    border: none;
    outline: none;
    background: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.3;
    font-weight: 700;
    color: var(--c-text);
    margin: 0;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    letter-spacing: 0.01em;
}

h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 600;
}

h4 {
    font-size: 1.05rem;
    font-weight: 600;
}

p {
    margin: 0;
}

:focus-visible {
    outline: 2px solid var(--c-primary);
    outline-offset: 3px;
    border-radius: var(--r-sm);
}

/* ==================== 容器 ==================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-pad);
    padding-right: var(--container-pad);
    width: 100%;
}

.container--wide {
    max-width: 1400px;
}

/* ==================== 顶部倒计时条 ==================== */
.countdown-bar {
    background: linear-gradient(90deg, var(--c-primary-deep), var(--c-primary), var(--c-primary-deep));
    color: #0b0b0a;
    padding: 10px 0;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    position: relative;
    z-index: 100;
    overflow: hidden;
}

.countdown-bar__glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: cd-shine 3.5s ease-in-out infinite;
}

@keyframes cd-shine {
    0%, 100% { transform: translateX(-50%); }
    50% { transform: translateX(50%); }
}

.countdown-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-4);
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.countdown-bar__label {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.countdown-bar__timer {
    display: flex;
    gap: var(--sp-2);
    align-items: center;
    font-variant-numeric: tabular-nums;
}

.countdown-bar__timer-item {
    background: rgba(0,0,0,0.25);
    color: #fff;
    padding: 4px 10px;
    border-radius: var(--r-sm);
    font-weight: 700;
    font-size: 0.9rem;
    min-width: 38px;
    text-align: center;
}

.countdown-bar__sep {
    font-weight: 800;
    font-size: 1rem;
}

.countdown-bar__cta {
    color: #0b0b0a;
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity var(--transition);
}

.countdown-bar__cta:hover {
    opacity: 0.75;
}

/* ==================== Header / Nav ==================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 99;
    background: rgba(11, 11, 10, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--c-border);
    height: 64px;
    display: flex;
    align-items: center;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    flex-wrap: nowrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-shrink: 0;
}

.brand__icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-deep));
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #0b0b0a;
    flex-shrink: 0;
}

.brand__text {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    white-space: nowrap;
    color: var(--c-text);
}

.brand__text span {
    color: var(--c-primary);
}

.nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--sp-6);
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-desktop__link {
    position: relative;
    padding: 6px 2px;
    letter-spacing: 0.02em;
    color: var(--c-text-muted);
    white-space: nowrap;
}

.nav-desktop__link:hover {
    color: var(--c-text);
}

.nav-desktop__link--active {
    color: var(--c-primary);
    font-weight: 600;
}

.nav-desktop__link--active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--c-primary);
    border-radius: var(--r-full);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-shrink: 0;
}

.nav-cta__btn {
    padding: 9px 20px;
    border-radius: var(--r-full);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    white-space: nowrap;
}

.nav-cta__btn--primary {
    background: var(--c-primary);
    color: #0b0b0a;
    box-shadow: 0 2px 12px rgba(201, 162, 75, 0.3);
}

.nav-cta__btn--primary:hover {
    background: var(--c-primary-soft);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(201, 162, 75, 0.45);
}

.nav-cta__btn--ghost {
    background: transparent;
    color: var(--c-text);
    border: 1px solid var(--c-border-strong);
}

.nav-cta__btn--ghost:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
    background: rgba(201, 162, 75, 0.08);
}

/* 汉堡按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: var(--r-sm);
    border: 1px solid var(--c-border-strong);
    background: var(--c-bg-2);
    flex-shrink: 0;
    transition: all var(--transition);
}

.nav-toggle:hover {
    border-color: var(--c-primary);
}

.nav-toggle__bar {
    width: 18px;
    height: 2px;
    background: var(--c-text);
    border-radius: var(--r-full);
    transition: all var(--transition);
}

.nav-toggle__bar--open:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle__bar--open:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle__bar--open:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 移动端导航面板 */
.nav-mobile {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 11, 10, 0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-border);
    padding: var(--sp-5) var(--container-pad) var(--sp-8);
    z-index: 98;
    flex-direction: column;
    gap: var(--sp-4);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-slow);
}

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

.nav-mobile__link {
    font-size: 1.1rem;
    font-weight: 600;
    padding: var(--sp-3) 0;
    border-bottom: 1px solid var(--c-border);
    color: var(--c-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-mobile__link--active {
    color: var(--c-primary);
}

.nav-mobile__link:hover {
    color: var(--c-primary);
    opacity: 1;
}

.nav-mobile__cta {
    display: flex;
    gap: var(--sp-3);
    margin-top: var(--sp-4);
}

/* ==================== Hero ==================== */
.hero {
    position: relative;
    min-height: 78vh;
    display: flex;
    align-items: center;
    padding: var(--sp-16) 0 var(--sp-20);
    background: var(--c-green-deep);
    overflow: hidden;
    isolation: isolate;
}

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('/assets/images/backpic/back-1.jpg');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        100deg,
        rgba(11, 11, 10, 0.85) 0%,
        rgba(11, 11, 10, 0.72) 35%,
        rgba(11, 11, 10, 0.38) 65%,
        rgba(11, 11, 10, 0.15) 100%
    );
    z-index: -1;
}

.hero__grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    z-index: -1;
    pointer-events: none;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent 70%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent 70%);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: var(--sp-12);
    flex-wrap: wrap;
}

.hero__content {
    flex: 1 1 520px;
    max-width: 680px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    background: rgba(201, 162, 75, 0.14);
    color: var(--c-primary-soft);
    padding: 7px 16px;
    border-radius: var(--r-full);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    border: 1px solid rgba(201, 162, 75, 0.25);
    margin-bottom: var(--sp-5);
}

.hero__badge-dot {
    width: 7px;
    height: 7px;
    background: var(--c-danger);
    border-radius: var(--r-full);
    animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.6); }
}

.hero__title {
    margin-bottom: var(--sp-5);
    text-shadow: 0 2px 16px rgba(0,0,0,0.5);
    letter-spacing: 0.005em;
    line-height: 1.25;
}

.hero__title-highlight {
    color: var(--c-primary);
    position: relative;
}

.hero__desc {
    font-size: 1.05rem;
    color: rgba(242, 240, 233, 0.85);
    max-width: 600px;
    margin-bottom: var(--sp-8);
    line-height: 1.9;
    letter-spacing: 0.01em;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-bottom: var(--sp-8);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
    padding: 14px 28px;
    border-radius: var(--r-full);
    font-size: 0.92rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-deep));
    color: #0b0b0a;
    box-shadow: 0 4px 20px rgba(201, 162, 75, 0.35);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(201, 162, 75, 0.5);
    opacity: 1;
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(201, 162, 75, 0.3);
}

.btn--ghost {
    background: rgba(255, 255, 255, 0.06);
    color: var(--c-text);
    border: 1px solid var(--c-border-strong);
    backdrop-filter: blur(6px);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--c-primary);
    transform: translateY(-2px);
    opacity: 1;
}

.btn--outline-gold {
    background: transparent;
    color: var(--c-primary-soft);
    border: 1px solid rgba(201, 162, 75, 0.45);
}

.btn--outline-gold:hover {
    background: rgba(201, 162, 75, 0.1);
    border-color: var(--c-primary);
    transform: translateY(-2px);
    opacity: 1;
}

.btn--sm {
    padding: 10px 20px;
    font-size: 0.82rem;
}

.btn--lg {
    padding: 18px 36px;
    font-size: 1.05rem;
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-6);
}

.hero__stat {
    text-align: left;
}

.hero__stat-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--c-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero__stat-label {
    font-size: 0.8rem;
    color: var(--c-text-faint);
    letter-spacing: 0.04em;
    margin-top: 2px;
}

/* Hero 播放按钮 */
.hero__play-wrap {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-5);
    position: relative;
}

.hero__play-btn {
    width: 92px;
    height: 92px;
    border-radius: var(--r-full);
    background: rgba(201, 162, 75, 0.16);
    border: 2px solid rgba(201, 162, 75, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-slow);
    position: relative;
}

.hero__play-btn::before {
    content: '';
    position: absolute;
    inset: -12px;
    border-radius: var(--r-full);
    border: 2px solid rgba(201, 162, 75, 0.2);
    animation: play-ring 2.4s ease-out infinite;
}

.hero__play-btn::after {
    content: '';
    position: absolute;
    inset: -24px;
    border-radius: var(--r-full);
    border: 1px solid rgba(201, 162, 75, 0.1);
    animation: play-ring 2.4s ease-out infinite 0.6s;
}

@keyframes play-ring {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.3); opacity: 0; }
}

.hero__play-btn:hover {
    background: rgba(201, 162, 75, 0.3);
    border-color: var(--c-primary);
    transform: scale(1.05);
}

.hero__play-triangle {
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 14px 0 14px 22px;
    border-color: transparent transparent transparent var(--c-primary-soft);
    margin-left: 4px;
}

.hero__play-hint {
    font-size: 0.78rem;
    color: var(--c-text-faint);
    letter-spacing: 0.06em;
    text-align: center;
}

/* ==================== 板块通用 ==================== */
.section {
    padding: var(--sp-20) 0;
    position: relative;
}

.section--dark {
    background: var(--c-bg-2);
}

.section--alt {
    background: linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-2) 50%, var(--c-bg) 100%);
}

.section-header {
    margin-bottom: var(--sp-10);
}

.section-header--inline {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--sp-6);
    flex-wrap: wrap;
}

.section-kicker {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--c-primary);
    text-transform: uppercase;
    margin-bottom: var(--sp-3);
    position: relative;
    padding-left: 20px;
}

.section-kicker::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 2px;
    background: var(--c-primary);
    border-radius: var(--r-full);
}

.section-title {
    margin-bottom: var(--sp-4);
}

.section-desc {
    color: var(--c-text-muted);
    font-size: 0.95rem;
    max-width: 640px;
    line-height: 1.85;
}

/* ==================== 板块：痛点清单 ==================== */
.pain-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-5);
}

.pain-item {
    display: flex;
    gap: var(--sp-4);
    padding: var(--sp-5);
    background: var(--c-bg-3);
    border-radius: var(--r-md);
    border: 1px solid var(--c-border);
    transition: all var(--transition);
}

.pain-item:hover {
    border-color: var(--c-border-strong);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.pain-item__num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: rgba(229, 72, 77, 0.12);
    color: var(--c-danger);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.9rem;
}

.pain-item__body {
    flex: 1;
}

.pain-item__title {
    font-size: 0.98rem;
    font-weight: 600;
    margin-bottom: var(--sp-2);
    color: var(--c-text);
}

.pain-item__desc {
    font-size: 0.85rem;
    color: var(--c-text-muted);
    line-height: 1.7;
}

.pain-item__solution {
    display: inline-block;
    margin-top: var(--sp-2);
    font-size: 0.82rem;
    color: var(--c-primary);
    font-weight: 600;
}

.pain-item__solution::before {
    content: '→ ';
    font-weight: 800;
}

/* ==================== 板块：能力矩阵 ==================== */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-5);
}

.matrix-item {
    background: var(--c-bg-3);
    border-radius: var(--r-md);
    padding: var(--sp-6) var(--sp-5);
    border: 1px solid var(--c-border);
    transition: all var(--transition);
    text-align: left;
}

.matrix-item:hover {
    border-color: rgba(201, 162, 75, 0.35);
    box-shadow: var(--shadow-glow);
    transform: translateY(-3px);
}

.matrix-item__icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(201, 162, 75, 0.18), rgba(201, 162, 75, 0.05));
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: var(--sp-4);
    color: var(--c-primary);
    border: 1px solid rgba(201, 162, 75, 0.2);
}

.matrix-item__title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--sp-2);
}

.matrix-item__desc {
    font-size: 0.82rem;
    color: var(--c-text-muted);
    line-height: 1.7;
}

/* ==================== 板块：秒杀商品轨 ==================== */
.track-section {
    padding: var(--sp-16) 0;
    background: var(--c-bg-2);
}

.track-section .container--wide {
    overflow: hidden;
}

.track-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    margin-bottom: var(--sp-6);
    flex-wrap: wrap;
}

.track-header__title {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.track-header__badge {
    background: var(--c-danger);
    color: #fff;
    padding: 3px 12px;
    border-radius: var(--r-full);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    animation: badge-flash 2s ease-in-out infinite;
}

@keyframes badge-flash {
    0%, 100% { background: var(--c-danger); }
    50% { background: #b33035; }
}

.track-arrow-hint {
    font-size: 0.8rem;
    color: var(--c-text-faint);
    letter-spacing: 0.05em;
}

.track-scroll {
    display: flex;
    gap: var(--sp-5);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: var(--sp-3) 0 var(--sp-6);
    scrollbar-width: thin;
    scrollbar-color: var(--c-primary) transparent;
}

.track-scroll::-webkit-scrollbar {
    height: 4px;
}

.track-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.track-scroll::-webkit-scrollbar-thumb {
    background: var(--c-primary);
    border-radius: var(--r-full);
}

.track-card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    background: var(--c-bg-3);
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--c-border);
    transition: all var(--transition);
    position: relative;
}

.track-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(201, 162, 75, 0.35);
}

.track-card__img-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--c-bg-4);
}

.track-card__img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.track-card:hover .track-card__img-wrap img {
    transform: scale(1.05);
}

.track-card__badge {
    position: absolute;
    top: var(--sp-3);
    left: var(--sp-3);
    background: rgba(229, 72, 77, 0.92);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--r-full);
    letter-spacing: 0.04em;
}

.track-card__body {
    padding: var(--sp-5);
}

.track-card__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--sp-2);
}

.track-card__desc {
    font-size: 0.82rem;
    color: var(--c-text-muted);
    line-height: 1.65;
    margin-bottom: var(--sp-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.track-card__foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
}

.track-card__price {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--c-primary);
}

.track-card__price-original {
    font-size: 0.78rem;
    color: var(--c-text-faint);
    text-decoration: line-through;
    margin-left: var(--sp-1);
    font-weight: 400;
}

.track-card__stock {
    font-size: 0.74rem;
    color: var(--c-text-faint);
}

.track-card__stock--low {
    color: var(--c-danger);
    font-weight: 600;
}

.track-card__btn {
    padding: 8px 18px;
    border-radius: var(--r-full);
    background: rgba(201, 162, 75, 0.15);
    color: var(--c-primary-soft);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid rgba(201, 162, 75, 0.35);
    transition: all var(--transition);
    white-space: nowrap;
}

.track-card__btn:hover {
    background: var(--c-primary);
    color: #0b0b0a;
    border-color: var(--c-primary);
    opacity: 1;
}

/* ==================== 板块：库存提示 ==================== */
.stock-panel {
    background: linear-gradient(135deg, var(--c-bg-3), var(--c-green-deep));
    border-radius: var(--r-lg);
    border: 1px solid var(--c-border);
    padding: var(--sp-8);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--sp-8);
    overflow: hidden;
    position: relative;
}

.stock-panel::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse at center, rgba(201, 162, 75, 0.08), transparent 70%);
    pointer-events: none;
}

.stock-panel__main {
    position: relative;
    z-index: 1;
}

.stock-panel__title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--sp-3);
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.stock-panel__alert {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(229, 72, 77, 0.14);
    color: var(--c-danger);
    padding: 4px 12px;
    border-radius: var(--r-full);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.stock-panel__desc {
    color: var(--c-text-muted);
    font-size: 0.9rem;
    line-height: 1.75;
    margin-bottom: var(--sp-5);
}

.stock-bar-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
}

.stock-bar-item {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.stock-bar-item__label {
    flex: 0 0 90px;
    font-size: 0.82rem;
    color: var(--c-text-muted);
    font-weight: 500;
}

.stock-bar-item__track {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.07);
    border-radius: var(--r-full);
    overflow: hidden;
}

.stock-bar-item__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--c-primary), var(--c-danger));
    border-radius: var(--r-full);
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.stock-bar-item__pct {
    flex: 0 0 50px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--c-primary);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.stock-bar-item__pct--low {
    color: var(--c-danger);
}

.stock-panel__side {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--sp-4);
    padding: var(--sp-5);
    background: rgba(0, 0, 0, 0.22);
    border-radius: var(--r-md);
    border: 1px solid var(--c-border);
}

.stock-side-stat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-3) 0;
    border-bottom: 1px solid var(--c-border);
}

.stock-side-stat:last-child {
    border-bottom: none;
}

.stock-side-stat__label {
    font-size: 0.85rem;
    color: var(--c-text-muted);
}

.stock-side-stat__value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--c-primary);
    letter-spacing: -0.02em;
}

.stock-side-stat__value--danger {
    color: var(--c-danger);
}

/* ==================== 板块：成果展示/数据徽章 ==================== */
.badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-4);
    margin-bottom: var(--sp-8);
}

.badge-stat {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 8px 18px;
    background: var(--c-bg-3);
    border-radius: var(--r-full);
    border: 1px solid var(--c-border);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--c-text);
    transition: all var(--transition);
}

.badge-stat:hover {
    border-color: var(--c-primary);
    background: rgba(201, 162, 75, 0.08);
}

.badge-stat__num {
    color: var(--c-primary);
    font-weight: 800;
    font-size: 0.95rem;
}

.result-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-5);
}

.result-card {
    background: var(--c-bg-3);
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--c-border);
    transition: all var(--transition);
}

.result-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: rgba(201, 162, 75, 0.3);
}

.result-card__img-wrap {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-bg-4);
}

.result-card__img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.result-card:hover .result-card__img-wrap img {
    transform: scale(1.04);
}

.result-card__body {
    padding: var(--sp-5);
}

.result-card__title {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: var(--sp-2);
}

.result-card__desc {
    font-size: 0.82rem;
    color: var(--c-text-muted);
    line-height: 1.7;
}

/* ==================== 板块：资讯区 ==================== */
.news-block {
    display: grid;
    grid-template-columns: 1.4fr 0.6fr;
    gap: var(--sp-8);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.news-list__item {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-5);
    background: transparent;
    border-radius: var(--r-sm);
    transition: all var(--transition);
    border-left: 3px solid transparent;
}

.news-list__item:hover {
    background: var(--c-bg-3);
    border-left-color: var(--c-primary);
    padding-left: var(--sp-6);
}

.news-list__main {
    flex: 1;
    min-width: 0;
}

.news-list__title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--c-text);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.news-list__item:hover .news-list__title {
    color: var(--c-primary);
}

.news-list__meta {
    font-size: 0.76rem;
    color: var(--c-text-faint);
    margin-top: var(--sp-1);
    letter-spacing: 0.03em;
}

.news-list__arrow {
    flex-shrink: 0;
    color: var(--c-text-faint);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.news-list__item:hover .news-list__arrow {
    color: var(--c-primary);
}

.news-side {
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
}

.news-side__card {
    background: var(--c-bg-3);
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid var(--c-border);
    transition: all var(--transition);
}

.news-side__card:hover {
    border-color: var(--c-border-strong);
    transform: translateY(-2px);
}

.news-side__img-wrap {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--c-bg-4);
}

.news-side__img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-side__body {
    padding: var(--sp-4);
}

.news-side__tag {
    font-size: 0.68rem;
    color: var(--c-primary);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: var(--sp-1);
    display: block;
}

.news-side__title {
    font-size: 0.88rem;
    font-weight: 600;
    line-height: 1.5;
}

/* ==================== 板块：客户证言 ==================== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-5);
}

.testimonial-card {
    background: var(--c-bg-3);
    border-radius: var(--r-md);
    padding: var(--sp-6);
    border: 1px solid var(--c-border);
    display: flex;
    flex-direction: column;
    gap: var(--sp-4);
    transition: all var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    border-color: rgba(201, 162, 75, 0.3);
}

.testimonial-card__stars {
    color: var(--c-primary);
    font-size: 0.85rem;
    letter-spacing: 0.15em;
}

.testimonial-card__quote {
    font-size: 0.9rem;
    color: var(--c-text-muted);
    line-height: 1.8;
    flex: 1;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding-top: var(--sp-4);
    border-top: 1px solid var(--c-border);
}

.testimonial-card__avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--r-full);
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-deep));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: #0b0b0a;
    flex-shrink: 0;
}

.testimonial-card__name {
    font-size: 0.85rem;
    font-weight: 600;
}

.testimonial-card__role {
    font-size: 0.75rem;
    color: var(--c-text-faint);
}

/* ==================== 板块：CTA 抢购按钮组 ==================== */
.cta-section {
    padding: var(--sp-16) 0;
    background: linear-gradient(135deg, var(--c-green-deep), var(--c-bg));
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 162, 75, 0.35), transparent);
}

.cta-panel {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-panel__title {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    font-weight: 800;
    margin-bottom: var(--sp-4);
    line-height: 1.3;
}

.cta-panel__desc {
    color: var(--c-text-muted);
    font-size: 0.95rem;
    line-height: 1.85;
    margin-bottom: var(--sp-8);
}

.cta-panel__buttons {
    display: flex;
    gap: var(--sp-4);
    flex-wrap: wrap;
    justify-content: center;
}

/* ==================== 板块：FAQ ==================== */
.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-5);
    align-items: start;
}

.faq-item {
    background: var(--c-bg-3);
    border-radius: var(--r-md);
    border: 1px solid var(--c-border);
    overflow: hidden;
    transition: all var(--transition);
}

.faq-item:hover {
    border-color: var(--c-border-strong);
}

.faq-item__question {
    padding: var(--sp-5) var(--sp-5) var(--sp-3);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--c-text);
    cursor: pointer;
}

.faq-item__toggle {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: var(--r-full);
    background: rgba(201, 162, 75, 0.12);
    color: var(--c-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    transition: transform var(--transition);
}

.faq-item--open .faq-item__toggle {
    transform: rotate(45deg);
}

.faq-item__answer {
    padding: 0 var(--sp-5) var(--sp-5);
    font-size: 0.85rem;
    color: var(--c-text-muted);
    line-height: 1.8;
    display: none;
}

.faq-item--open .faq-item__answer {
    display: block;
}

/* ==================== Footer ==================== */
.site-footer {
    background: var(--c-bg-2);
    border-top: 1px solid var(--c-border);
    padding: var(--sp-12) 0 var(--sp-6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 0.8fr;
    gap: var(--sp-8);
    margin-bottom: var(--sp-8);
}

.footer-brand__name {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--sp-3);
    color: var(--c-text);
}

.footer-brand__name span {
    color: var(--c-primary);
}

.footer-brand__desc {
    font-size: 0.82rem;
    color: var(--c-text-faint);
    line-height: 1.75;
    max-width: 280px;
}

.footer-col__title {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: var(--sp-4);
}

.footer-col__links {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.footer-col__links a {
    font-size: 0.85rem;
    color: var(--c-text-muted);
    transition: color var(--transition);
}

.footer-col__links a:hover {
    color: var(--c-primary);
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid var(--c-border);
    padding-top: var(--sp-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    flex-wrap: wrap;
}

.footer-bottom__copy {
    font-size: 0.78rem;
    color: var(--c-text-faint);
}

.footer-bottom__links {
    display: flex;
    gap: var(--sp-4);
    font-size: 0.78rem;
    color: var(--c-text-faint);
}

.footer-bottom__links a:hover {
    color: var(--c-primary);
    opacity: 1;
}

/* ==================== 响应式断点 ==================== */
@media (max-width: 1024px) {
    :root {
        --container-pad: 20px;
        --sp-16: 48px;
        --sp-20: 64px;
    }
    
    h1 { font-size: clamp(1.8rem, 4.5vw, 2.6rem); }
    h2 { font-size: clamp(1.35rem, 3vw, 1.8rem); }
    
    .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--sp-4);
    }
    
    .news-block {
        grid-template-columns: 1.2fr 0.8fr;
        gap: var(--sp-5);
    }
    
    .testimonial-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .result-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stock-panel {
        grid-template-columns: 1fr;
        gap: var(--sp-5);
    }
    
    .footer-grid {
        grid-template-columns: 1.2fr 0.8fr 0.8fr;
    }
}

@media (max-width: 768px) {
    :root {
        --container-pad: 16px;
        --sp-12: 32px;
        --sp-16: 40px;
        --sp-20: 48px;
    }
    
    h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
    h2 { font-size: clamp(1.25rem, 4.5vw, 1.6rem); }
    h3 { font-size: 1rem; }
    
    .site-header {
        height: 56px;
    }
    
    .nav-mobile {
        top: 56px;
    }
    
    .nav-desktop {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-cta .nav-cta__btn--ghost {
        display: none;
    }
    
    .hero {
        min-height: 65vh;
        padding: var(--sp-10) 0 var(--sp-12);
    }
    
    .hero .container {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--sp-6);
    }
    
    .hero__content {
        max-width: 100%;
    }
    
    .hero__desc {
        font-size: 0.92rem;
        line-height: 1.75;
    }
    
    .hero__play-wrap {
        align-self: center;
    }
    
    .hero__play-btn {
        width: 68px;
        height: 68px;
    }
    
    .hero__play-triangle {
        border-width: 10px 0 10px 16px;
    }
    
    .pain-list {
        grid-template-columns: 1fr;
        gap: var(--sp-3);
    }
    
    .matrix-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-3);
    }
    
    .news-block {
        grid-template-columns: 1fr;
        gap: var(--sp-6);
    }
    
    .news-side {
        flex-direction: row;
        overflow-x: auto;
        gap: var(--sp-3);
    }
    
    .news-side__card {
        flex: 0 0 260px;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .result-cards {
        grid-template-columns: 1fr;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-3);
    }
    
    .stock-panel {
        padding: var(--sp-5);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--sp-6);
    }
    
    .cta-panel__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-panel__buttons .btn {
        width: 100%;
        max-width: 360px;
    }
    
    .track-card {
        flex: 0 0 260px;
    }
    
    .badges-row {
        gap: var(--sp-2);
    }
    
    .badge-stat {
        padding: 6px 14px;
        font-size: 0.76rem;
    }
    
    .section-header--inline {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--sp-3);
    }
    
    .countdown-bar {
        font-size: 0.75rem;
        padding: 8px 0;
    }
    
    .countdown-bar__timer-item {
        padding: 3px 8px;
        font-size: 0.78rem;
        min-width: 30px;
    }
}

@media (max-width: 520px) {
    :root {
        --container-pad: 14px;
        --sp-8: 24px;
        --sp-10: 28px;
        --sp-16: 32px;
        --sp-20: 40px;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.2rem; }
    
    .brand__text {
        font-size: 0.92rem;
        letter-spacing: 0;
    }
    
    .brand__icon {
        width: 34px;
        height: 34px;
        font-size: 0.9rem;
    }
    
    .nav-cta__btn {
        padding: 7px 14px;
        font-size: 0.75rem;
    }
    
    .hero__title {
        line-height: 1.3;
    }
    
    .hero__stats {
        gap: var(--sp-4);
    }
    
    .hero__stat-num {
        font-size: 1.25rem;
    }
    
    .hero__stat-label {
        font-size: 0.7rem;
    }
    
    .btn {
        padding: 11px 20px;
        font-size: 0.85rem;
    }
    
    .btn--lg {
        padding: 14px 24px;
        font-size: 0.92rem;
    }
    
    .track-card {
        flex: 0 0 230px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--sp-5);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--sp-2);
    }
    
    .footer-bottom__links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .countdown-bar .container {
        gap: var(--sp-2);
    }
    
    .countdown-bar__label {
        font-size: 0.7rem;
    }
    
    .countdown-bar__timer-item {
        padding: 2px 6px;
        font-size: 0.7rem;
        min-width: 26px;
    }
    
    .pain-item {
        padding: var(--sp-4);
        gap: var(--sp-3);
    }
    
    .pain-item__num {
        width: 30px;
        height: 30px;
        font-size: 0.78rem;
    }
    
    .stock-side-stat__value {
        font-size: 1.1rem;
    }
    
    .testimonial-card {
        padding: var(--sp-4);
    }
    
    .news-list__item {
        padding: var(--sp-3) var(--sp-4);
    }
    
    .news-list__title {
        font-size: 0.85rem;
    }
    
    .section-kicker {
        font-size: 0.7rem;
        padding-left: 16px;
    }
    
    .section-kicker::before {
        width: 8px;
    }
}