:root {
    --color-primary: #c44536;
    --color-primary-dark: #8f2e27;
    --color-accent: #6b705c;
    --color-surface: #f5f1e8;
    --color-text: #1a1a1a;
    --rgb-primary: 196,69,54;
    --rgb-accent: 107,112,92;
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --shadow-sm: 0 1px 0 rgba(26,26,26,.06);
    --shadow-md: 0 10px 30px rgba(26,26,26,.08), 0 0 0 1px rgba(26,26,26,.06);
    --shadow-lg: 0 22px 60px rgba(26,26,26,.12), 0 0 0 1px rgba(26,26,26,.08);
    --space-section: 3rem;
    --space-card: 1.25rem;
    --space-gap: 1rem;
    --transition: 520ms cubic-bezier(0.16, 1, 0.3, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;
}

body { color: var(--color-text); line-height: var(--body-line-height); background: var(--color-surface); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: var(--radius-lg);
    box-shadow:
        0 0 0 1px rgba(26,26,26,.08),
        0 10px 26px rgba(26,26,26,.10),
        0 0 22px rgba(var(--rgb-primary), .18);
    padding: var(--space-card);
    transition: var(--transition);
    background: linear-gradient(180deg, rgba(255,255,255,.75) 0%, rgba(245,241,232,.75) 100%);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: var(--transition);
    box-shadow:
        0 0 0 1px rgba(26,26,26,.10),
        0 10px 22px rgba(26,26,26,.10),
        0 0 18px rgba(var(--rgb-primary), .18);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 0 0 rgba(0,0,0,0); }
a:not([class]):hover {
    color: var(--color-primary);
    text-shadow:
        0 0 22px rgba(var(--rgb-primary), .35),
        0 1px 0 rgba(26,26,26,.08);
    filter: saturate(1.05);
}

section, .section { position: relative; }
.card:hover, [class*="card"]:hover {
    box-shadow:
        0 0 0 1px rgba(26,26,26,.10),
        0 18px 44px rgba(26,26,26,.14),
        0 0 32px rgba(var(--rgb-primary), .36);
}
.btn:hover, button[class*="btn"]:hover, a[class*="btn"]:hover {
    box-shadow:
        0 0 0 1px rgba(26,26,26,.10),
        0 16px 40px rgba(26,26,26,.14),
        0 0 34px rgba(var(--rgb-primary), .45);
    transform: translateY(-1px);
}

.card:focus-visible, .btn:focus-visible, button[class*="btn"]:focus-visible, a[class*="btn"]:focus-visible {
    outline: 2px solid rgba(var(--rgb-accent), .55);
    outline-style: solid;
    outline-offset: 3px;
    box-shadow:
        0 0 0 1px rgba(26,26,26,.10),
        0 16px 44px rgba(26,26,26,.14),
        0 0 34px rgba(var(--rgb-accent), .35);
}

.card { animation: cardGlow 3.6s ease-in-out infinite; }
@keyframes cardGlow {
    0%, 100% {
        box-shadow:
            0 0 0 1px rgba(26,26,26,.08),
            0 10px 26px rgba(26,26,26,.10),
            0 0 22px rgba(var(--rgb-primary), .16);
    }
    50% {
        box-shadow:
            0 0 0 1px rgba(26,26,26,.08),
            0 14px 34px rgba(26,26,26,.12),
            0 0 30px rgba(var(--rgb-primary), .26);
    }
}

/* ========== Section Layout Variants ========== */

/* news: grid-4 */
/* 四列紧凑网格 */
                .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: calc(var(--space-gap) * 0.8); }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }

/* hero: overlay */
/* 全屏背景+文字覆盖 */
                .hero { position: relative; min-height: 70vh; display: flex; align-items: center; }
                .hero-content { position: relative; z-index: 1; }
                .hero::before {
                    content: "";
                    position: absolute;
                    inset: -24px;
                    background:
                        radial-gradient(900px 420px at 20% 20%, rgba(var(--rgb-primary), .20) 0%, rgba(var(--rgb-primary), 0) 60%),
                        radial-gradient(760px 380px at 85% 30%, rgba(var(--rgb-accent), .18) 0%, rgba(var(--rgb-accent), 0) 62%),
                        linear-gradient(180deg, rgba(245,241,232,.35) 0%, rgba(245,241,232,.90) 100%);
                    opacity: .95;
                    filter: blur(0px);
                    border-radius: var(--radius-xl);
                    z-index: 0;
                    box-shadow: 0 0 0 1px rgba(26,26,26,.06), 0 0 60px rgba(var(--rgb-primary), .12);
                }
                .hero::after {
                    content: "";
                    position: absolute;
                    inset: 0;
                    background: linear-gradient(90deg, rgba(196,69,54,.10) 0%, rgba(107,112,92,.08) 52%, rgba(196,69,54,.06) 100%);
                    opacity: .35;
                    z-index: 0;
                    pointer-events: none;
                }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }
                .testimonial-list::before {
                    content: "";
                    height: 1px;
                    background: linear-gradient(90deg, rgba(var(--rgb-primary), .35), rgba(26,26,26,0));
                    opacity: .9;
                }

/* partners: scroll */
/* 自动滚动 */
                .partner-grid { display: flex; gap: 2rem; overflow: hidden; animation: partnerScroll 20s linear infinite; }
                @keyframes partnerScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
                .partner-grid {
                    filter: drop-shadow(0 0 18px rgba(var(--rgb-accent), .14));
                }

/* faq: with-sidebar */
/* FAQ 左 + 联系信息右 */
                .faq-wrapper { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; }
                .faq-wrapper {
                    background: linear-gradient(180deg, rgba(255,255,255,.28) 0%, rgba(245,241,232,.20) 100%);
                    border-radius: var(--radius-lg);
                    box-shadow:
                        0 0 0 1px rgba(26,26,26,.06),
                        0 16px 50px rgba(26,26,26,.08);
                }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid {
                    text-shadow: 0 0 22px rgba(var(--rgb-primary), .10);
                }

/* cta: full-bg */
.cta-section { 
    background:
        radial-gradient(1000px 420px at 20% 15%, rgba(255,255,255,.18) 0%, rgba(255,255,255,0) 60%),
        linear-gradient(135deg, rgba(196,69,54,1) 0%, rgba(143,46,39,1) 55%, rgba(196,69,54,1) 100%);
    color: #fff; 
    padding: 4rem 2rem;
    box-shadow:
        0 0 0 1px rgba(26,26,26,.08),
        0 24px 70px rgba(26,26,26,.18),
        0 0 48px rgba(var(--rgb-primary), .30);
    border-radius: var(--radius-xl);
}
.cta-section a:not([class]) { color: rgba(255,255,255,.95); }
.cta-section a:not([class]):hover {
    color: #fff;
    text-shadow: 0 0 26px rgba(255,255,255,.22), 0 0 36px rgba(var(--rgb-accent), .35);
}

/* Page Layout: full-width */
/* 无侧边栏, 全宽 */
            .page-main { max-width: 1200px; margin: 0 auto; }
            .page-main {
                filter: saturate(1.02);
            }

/* 条件性装饰 */
a:not([class]):hover { color: var(--color-accent); }
header, .header, .navbar { box-shadow: 0 2px 10px rgba(26,26,26,.10), 0 0 18px rgba(var(--rgb-accent), .18); background: rgba(245,241,232,.65); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
header, .header, .navbar { border-radius: 14px; border: 1px solid rgba(26,26,26,.06); }

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
    .card:hover, [class*="card"]:hover { box-shadow: 0 0 0 1px rgba(26,26,26,.10), 0 16px 40px rgba(26,26,26,.14), 0 0 26px rgba(var(--rgb-primary), .30); }
}
@media (max-width: 640px) {
    :root { --space-section: 2rem; --space-card: 1rem; --space-gap: 0.75rem; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
    .cta-section { box-shadow: 0 0 0 1px rgba(26,26,26,.08), 0 16px 48px rgba(26,26,26,.16), 0 0 40px rgba(var(--rgb-primary), .26); }
}

*::selection { background: rgba(var(--rgb-primary), .28); color: var(--color-text); }
:root { caret-color: var(--color-primary); accent-color: var(--color-primary); }