/* 大亚湾清风 · Daya Bay Breeze */
:root {
    --c-sea-deep: #2c5870;
    --c-sea: #4e8daa;
    --c-sea-light: #7cb1c8;
    --c-sky: #cfe6f0;
    --c-mist: #eaf3f7;
    --c-leaf: #7ca895;
    --c-leaf-light: #a8c8b8;
    --c-cream: #f7f4ec;
    --c-paper: #fbfaf6;
    --c-ink: #1f2d36;
    --c-ink-soft: #4a5a66;
    --c-line: #e0e6e9;
    --c-grey: #8a98a3;
    --f-serif: "Noto Serif SC", "Cormorant Garamond", "Songti SC", serif;
    --f-sans: "Noto Sans SC", "PingFang SC", -apple-system, BlinkMacSystemFont, sans-serif;
    --f-en: "Cormorant Garamond", "Noto Serif SC", serif;
    --container: 1240px;
    --gutter: clamp(1.5rem, 4vw, 3rem);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--f-sans);
    color: var(--c-ink);
    background: var(--c-paper);
    line-height: 1.85;
    font-weight: 300;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .3s ease, opacity .3s ease; }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

/* 装饰云 */
.ambient-layer { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.cloud { position: absolute; opacity: 0.7; }
.cloud-1 { width: 240px; top: 8%; left: -260px; animation: drift 90s linear infinite; }
.cloud-2 { width: 320px; top: 22%; left: -340px; animation: drift 130s linear infinite; animation-delay: -40s; }
.cloud-3 { width: 200px; top: 14%; left: -220px; animation: drift 110s linear infinite; animation-delay: -80s; }
@keyframes drift {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(100vw + 400px)); }
}

/* 导航 */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    backdrop-filter: blur(14px) saturate(180%);
    -webkit-backdrop-filter: blur(14px) saturate(180%);
    background: rgba(251, 250, 246, 0.72);
    border-bottom: 1px solid rgba(224, 230, 233, 0.5);
    transition: background .4s ease;
}
.nav-wrap {
    max-width: var(--container); margin: 0 auto;
    padding: 1.1rem var(--gutter);
    display: flex; align-items: center; justify-content: space-between;
    gap: 2rem;
}
.logo { display: flex; align-items: center; gap: 0.7rem; color: var(--c-sea-deep); }
.logo-mark { width: 32px; height: 32px; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-cn { font-family: var(--f-serif); font-size: 1.05rem; font-weight: 500; letter-spacing: 0.06em; }
.logo-en { font-family: var(--f-en); font-size: 0.65rem; letter-spacing: 0.22em; color: var(--c-grey); margin-top: 2px; }

.nav-links { display: flex; gap: 2.4rem; }
.nav-links a {
    font-size: 0.92rem; color: var(--c-ink-soft);
    position: relative; padding: 0.3rem 0;
    letter-spacing: 0.06em;
}
.nav-links a::after {
    content: ''; position: absolute;
    bottom: 0; left: 50%;
    width: 0; height: 1px;
    background: var(--c-sea-deep);
    transition: all .35s ease;
    transform: translateX(-50%);
}
.nav-links a:hover { color: var(--c-sea-deep); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
    display: none; background: none; border: none;
    cursor: pointer; padding: 0.4rem;
    flex-direction: column; gap: 5px;
}
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--c-ink); transition: all .3s; }

/* Hero */
.hero {
    position: relative; min-height: 100vh;
    padding: 8rem 0 4rem;
    overflow: hidden;
    display: flex; align-items: center;
    background: linear-gradient(180deg, #f4f9fb 0%, #e3eff5 60%, #cfe6f0 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.sun {
    position: absolute; top: 18%; right: 12%;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.95) 0%, rgba(255,250,235,0.7) 40%, rgba(255,250,235,0) 70%);
    animation: sun-pulse 8s ease-in-out infinite;
}
@keyframes sun-pulse {
    0%, 100% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.08); opacity: 1; }
}
.wave-svg { position: absolute; bottom: 0; left: 0; width: 200%; height: 30%; }
.wave-back  { animation: wave-flow 20s linear infinite; opacity: 0.7; }
.wave-mid   { animation: wave-flow 15s linear infinite reverse; opacity: 0.85; }
.wave-front { animation: wave-flow 12s linear infinite; }
@keyframes wave-flow {
    0%   { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.hero-inner {
    position: relative; z-index: 2;
    max-width: var(--container); margin: 0 auto;
    padding: 0 var(--gutter); width: 100%;
}
.hero-meta {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-family: var(--f-en); font-size: 0.85rem;
    letter-spacing: 0.18em; color: var(--c-sea-deep);
    margin-bottom: 2rem;
    padding: 0.4rem 1rem;
    border: 1px solid rgba(78, 141, 170, 0.25);
    border-radius: 100px;
    background: rgba(255,255,255,0.4);
    animation: fade-up 1s 0.2s both;
}
.hero-meta .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--c-sea);
    box-shadow: 0 0 0 4px rgba(78,141,170,0.15);
}
.hero-title {
    font-family: var(--f-serif);
    font-size: clamp(3rem, 9vw, 7.5rem);
    font-weight: 400; line-height: 1.05;
    letter-spacing: 0.04em;
    color: var(--c-sea-deep);
    margin-bottom: 2rem;
}
.hero-title span { display: block; }
.hero-line-1 { animation: fade-up 1.1s 0.4s both; }
.hero-line-2 {
    animation: fade-up 1.1s 0.6s both;
    color: var(--c-sea);
    font-style: italic; font-weight: 300;
}
@keyframes fade-up {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
.hero-sub {
    max-width: 540px;
    font-size: 1.05rem; color: var(--c-ink-soft);
    margin-bottom: 2.5rem; line-height: 2;
    animation: fade-up 1s 0.8s both;
}
.hero-cta {
    display: flex; gap: 1rem;
    margin-bottom: 5rem; flex-wrap: wrap;
    animation: fade-up 1s 1s both;
}

.btn {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.95rem 1.8rem;
    font-size: 0.92rem; letter-spacing: 0.08em;
    border-radius: 100px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .35s cubic-bezier(.16,1,.3,1);
    font-family: inherit;
}
.btn svg { transition: transform .35s ease; }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: var(--c-sea-deep); color: #fff; }
.btn-primary:hover {
    background: var(--c-sea);
    transform: translateY(-2px);
    box-shadow: 0 14px 30px -12px rgba(44,88,112,0.45);
}
.btn-ghost {
    background: rgba(255,255,255,0.5);
    color: var(--c-sea-deep);
    border-color: rgba(78,141,170,0.3);
}
.btn-ghost:hover { background: rgba(255,255,255,0.85); border-color: var(--c-sea); }
.btn-lg { padding: 1.15rem 2.4rem; font-size: 1rem; }

.hero-stats {
    display: flex; align-items: center; gap: 2rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(78,141,170,0.2);
    max-width: 720px;
    animation: fade-up 1s 1.2s both;
}
.stat-divider { width: 1px; height: 40px; background: rgba(78,141,170,0.2); }
.stat-num {
    font-family: var(--f-serif);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 400; color: var(--c-sea-deep);
    line-height: 1;
}
.stat-num span {
    font-size: 0.6em; color: var(--c-sea);
    margin-left: 0.2rem; font-style: italic;
}
.stat-num.stat-text {
    font-family: var(--f-serif);
    font-size: clamp(1.4rem, 2.6vw, 1.8rem);
    letter-spacing: 0.04em;
}
.stat-num.stat-text span {
    font-style: normal;
    font-family: var(--f-sans);
    font-size: 0.6em;
    letter-spacing: 0.1em;
    color: var(--c-grey);
}
.stat-label {
    font-size: 0.78rem; color: var(--c-grey);
    letter-spacing: 0.15em; margin-top: 0.5rem;
}

.scroll-hint {
    position: absolute; bottom: 2rem; left: 50%;
    transform: translateX(-50%);
    display: flex; flex-direction: column;
    align-items: center; gap: 0.6rem; z-index: 3;
}
.scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(to bottom, transparent, var(--c-sea-deep));
    animation: scroll-down 2.2s ease-in-out infinite;
}
@keyframes scroll-down {
    0%   { transform: scaleY(0); transform-origin: top; }
    50%  { transform: scaleY(1); transform-origin: top; }
    51%  { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}
.scroll-text {
    font-family: var(--f-en);
    font-size: 0.7rem; letter-spacing: 0.4em;
    color: var(--c-sea-deep);
    writing-mode: vertical-rl;
    margin-top: 0.5rem;
}

/* 通用 section */
section { position: relative; padding: 8rem 0; }
.eyebrow {
    font-family: var(--f-en);
    font-size: 0.78rem; letter-spacing: 0.4em;
    color: var(--c-sea);
    margin-bottom: 1.4rem;
    text-transform: uppercase;
    display: inline-flex; align-items: center; gap: 0.8rem;
}
.eyebrow::before { content: ''; width: 32px; height: 1px; background: var(--c-sea); }
.section-title {
    font-family: var(--f-serif);
    font-size: clamp(2rem, 4.5vw, 3.4rem);
    font-weight: 400; line-height: 1.2;
    letter-spacing: 0.02em; color: var(--c-ink);
    margin-bottom: 1.5rem;
}
.section-title.center { text-align: center; }
.section-head { text-align: center; margin-bottom: 5rem; }
.section-head .eyebrow { justify-content: center; }
.section-head .eyebrow::after { content: ''; width: 32px; height: 1px; background: var(--c-sea); }
.section-desc { max-width: 580px; margin: 0 auto; color: var(--c-ink-soft); font-size: 1rem; }
.lead {
    font-size: 1.15rem; color: var(--c-ink);
    margin-bottom: 1.5rem; line-height: 1.9; font-weight: 400;
}

/* 两列 */
.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 6vw, 6rem);
    align-items: center;
}

/* 故事 */
.story { padding-top: 10rem; background: var(--c-paper); }
.col-text p { color: var(--c-ink-soft); margin-bottom: 1.2rem; }
.quote-block {
    margin-top: 2.5rem;
    padding: 1.8rem 2rem 1.8rem 3rem;
    background: var(--c-mist);
    border-left: 2px solid var(--c-sea);
    position: relative;
    border-radius: 2px;
}
.quote-mark {
    font-family: var(--f-serif); font-size: 4rem;
    color: var(--c-sea);
    position: absolute; top: -0.5rem; left: 1rem;
    line-height: 1; opacity: 0.4;
}
.quote-block p {
    font-family: var(--f-serif);
    font-size: 1.15rem; color: var(--c-sea-deep);
    font-style: italic;
}

.visual-card { position: relative; }
.vc-frame {
    border-radius: 4px; overflow: hidden;
    box-shadow: 0 30px 80px -30px rgba(44,88,112,0.3),
                0 10px 30px -10px rgba(44,88,112,0.15);
    transition: transform .6s cubic-bezier(.16,1,.3,1);
}
.vc-frame:hover { transform: translateY(-6px); }
.vc-illust { width: 100%; height: auto; display: block; }
.vc-caption {
    margin-top: 1.2rem;
    display: flex; justify-content: space-between;
    align-items: baseline;
    font-family: var(--f-en);
    color: var(--c-grey);
    font-size: 0.85rem; letter-spacing: 0.15em;
    padding: 0 0.4rem;
}
.vc-num { color: var(--c-sea-deep); font-weight: 500; }

/* 故事段落内的强调（拟声 / 细节） */
.col-text p em {
    font-style: italic;
    font-family: var(--f-serif);
    color: var(--c-sea-deep);
    background: linear-gradient(transparent 70%, rgba(124,177,200,0.25) 70%);
    padding: 0 0.1em;
}

/* 风的一日 · 时间线 */
.story-timeline {
    margin-top: 2.4rem;
    padding: 1.4rem 0 0.4rem;
    border-top: 1px dashed var(--c-line);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.6rem;
}
.stl-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.86rem;
    color: var(--c-ink-soft);
    position: relative;
}
.stl-time {
    font-family: var(--f-en);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    color: var(--c-sea-deep);
    font-weight: 500;
    min-width: 42px;
}
.stl-mark {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--c-sea);
    box-shadow: 0 0 0 3px rgba(78,141,170,0.15);
    flex-shrink: 0;
}
.stl-text { line-height: 1.5; }

/* 风的笺记 · 手帐式小卡 */
.wind-note {
    margin-top: 1.6rem;
    padding: 1.6rem 1.8rem;
    background: var(--c-paper);
    border: 1px solid var(--c-line);
    border-radius: 4px;
    position: relative;
    box-shadow: 0 12px 30px -18px rgba(44,88,112,0.25);
}
.wind-note::before {
    content: '';
    position: absolute;
    top: -10px; left: 24px;
    width: 36px; height: 18px;
    background: rgba(124,177,200,0.35);
    border-radius: 2px;
    transform: rotate(-2deg);
    box-shadow: 0 2px 6px rgba(44,88,112,0.1);
}
.wn-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--f-en);
    font-size: 0.72rem;
    letter-spacing: 0.25em;
    color: var(--c-grey);
    margin-bottom: 1rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px dashed var(--c-line);
}
.wn-label { color: var(--c-sea-deep); font-weight: 500; }
.wn-date { font-family: var(--f-serif); letter-spacing: 0.08em; font-style: italic; }
.wn-body {
    font-family: var(--f-serif);
    font-size: 0.98rem;
    line-height: 1.9;
    color: var(--c-ink);
    margin: 0;
}
.wn-sign {
    margin-top: 1rem;
    text-align: right;
    font-size: 0.78rem;
    color: var(--c-grey);
    letter-spacing: 0.06em;
    font-style: italic;
}

/* 地理 */
.geo { background: linear-gradient(180deg, var(--c-paper) 0%, var(--c-mist) 100%); }
.geo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.geo-card {
    padding: 2.5rem 1.8rem;
    background: #fff;
    border-radius: 6px;
    border: 1px solid var(--c-line);
    transition: all .5s cubic-bezier(.16,1,.3,1);
    position: relative;
    overflow: hidden;
}
.geo-card::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, var(--c-sea), var(--c-leaf));
    transform: scaleX(0); transform-origin: left;
    transition: transform .6s ease;
}
.geo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -20px rgba(44,88,112,0.18);
    border-color: transparent;
}
.geo-card:hover::before { transform: scaleX(1); }
.geo-card.featured { background: var(--c-sea-deep); color: #fff; border-color: var(--c-sea-deep); }
.geo-card.featured h3 { color: #fff; }
.geo-card.featured p { color: rgba(255,255,255,0.75); }
.geo-icon {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: var(--c-mist);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1.6rem;
    color: var(--c-sea-deep);
}
.geo-card.featured .geo-icon { background: rgba(255,255,255,0.1); color: #fff; }
.geo-icon svg { width: 28px; height: 28px; }
.geo-card h3 {
    font-family: var(--f-serif);
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
    color: var(--c-ink);
    letter-spacing: 0.04em;
}
.geo-card p { font-size: 0.92rem; color: var(--c-ink-soft); line-height: 1.8; }

/* 清风成因 */
.breeze {
    background: var(--c-paper);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(124,177,200,0.06) 0, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(124,168,149,0.06) 0, transparent 40%);
}
.breeze-flow {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: 1.5rem;
    align-items: stretch;
}
.bf-step {
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 6px;
    border: 1px solid var(--c-line);
    text-align: center;
    position: relative;
    transition: all .5s ease;
}
.bf-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px -15px rgba(44,88,112,0.15);
}
.bf-num {
    font-family: var(--f-en);
    font-size: 0.85rem; letter-spacing: 0.3em;
    color: var(--c-sea); font-weight: 500;
    margin-bottom: 1rem;
}
.bf-icon {
    width: 80px; height: 80px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: var(--c-mist);
    display: flex; align-items: center; justify-content: center;
    color: var(--c-sea-deep);
}
.bf-icon svg { width: 38px; height: 38px; }
.bf-step h4 {
    font-family: var(--f-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--c-sea-deep);
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
}
.bf-step p { font-size: 0.92rem; color: var(--c-ink-soft); line-height: 1.8; }
.bf-arrow {
    display: flex; align-items: center;
    color: var(--c-sea-light);
}
.bf-arrow svg { width: 60px; height: 24px; }

/* 画廊 */
.gallery { background: linear-gradient(180deg, var(--c-paper) 0%, var(--c-mist) 100%); }
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 250px;
    gap: 1.5rem;
}
.g-item {
    position: relative;
    overflow: hidden;
    border-radius: 6px;
    cursor: pointer;
    box-shadow: 0 10px 30px -15px rgba(44,88,112,0.2);
    transition: all .6s cubic-bezier(.16,1,.3,1);
}
.g-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 30px 60px -20px rgba(44,88,112,0.35);
}
.g-tall { grid-row: span 2; }
.g-wide { grid-column: span 2; }
.g-img { width: 100%; height: 100%; transition: transform .8s cubic-bezier(.16,1,.3,1); }
.g-img svg { width: 100%; height: 100%; object-fit: cover; }
.g-item:hover .g-img { transform: scale(1.06); }
.g-item figcaption {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 1.6rem 1.4rem 1.2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(31,45,54,0.85) 100%);
    color: #fff;
    font-family: var(--f-serif);
    font-size: 1.05rem;
    letter-spacing: 0.05em;
    display: flex; align-items: baseline; gap: 0.8rem;
    transform: translateY(20%); opacity: 0;
    transition: all .5s cubic-bezier(.16,1,.3,1);
}
.g-item figcaption span {
    font-family: var(--f-en);
    font-size: 0.78rem;
    letter-spacing: 0.25em;
    color: var(--c-sea-light);
}
.g-item:hover figcaption { transform: translateY(0); opacity: 1; }

/* 环保 */
.eco { background: var(--c-paper); }
.eco-list {
    margin-top: 2.5rem;
    display: flex; flex-direction: column; gap: 1.6rem;
}
.eco-list li {
    display: flex; gap: 1.4rem;
    padding-bottom: 1.6rem;
    border-bottom: 1px solid var(--c-line);
}
.eco-list li:last-child { border-bottom: none; }
.eco-num {
    font-family: var(--f-en);
    font-size: 1.4rem;
    font-weight: 400; font-style: italic;
    color: var(--c-sea); flex-shrink: 0;
    width: 50px;
    border-right: 1px solid var(--c-line);
    padding-right: 1.4rem;
    line-height: 1.4;
}
.eco-list h5 {
    font-family: var(--f-serif);
    font-size: 1.1rem; font-weight: 500;
    color: var(--c-ink); margin-bottom: 0.4rem;
    letter-spacing: 0.04em;
}
.eco-list li p { font-size: 0.92rem; color: var(--c-ink-soft); line-height: 1.7; }

.eco-stat-card {
    background: linear-gradient(135deg, var(--c-sea-deep) 0%, var(--c-sea) 100%);
    border-radius: 8px;
    padding: 3rem 2.5rem;
    color: #fff;
    box-shadow: 0 30px 60px -25px rgba(44,88,112,0.5);
    position: relative;
    overflow: hidden;
}
.eco-stat-card::before {
    content: ''; position: absolute;
    top: -50%; right: -30%;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}
.esc-row {
    display: flex; justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.6rem;
    position: relative; z-index: 1;
}
.esc-num {
    font-family: var(--f-serif);
    font-size: 2rem; font-weight: 400;
    line-height: 1;
}
.esc-num span { font-size: 0.55em; color: var(--c-sea-light); margin-left: 0.2rem; }
.esc-num.esc-text {
    font-family: var(--f-serif);
    font-size: 1.5rem;
    letter-spacing: 0.06em;
    color: #fff;
}
.esc-num.esc-text span {
    font-family: var(--f-sans);
    font-size: 0.62em;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.55);
}
.esc-label {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.7);
    letter-spacing: 0.08em;
}
.esc-bar {
    height: 2px;
    background: rgba(255,255,255,0.15);
    border-radius: 2px;
    margin-bottom: 1.8rem;
    overflow: hidden;
    position: relative; z-index: 1;
}
.esc-fill {
    height: 100%;
    width: var(--w);
    background: linear-gradient(90deg, var(--c-sea-light), #fff);
    border-radius: 2px;
    animation: bar-grow 1.6s cubic-bezier(.16,1,.3,1) both;
}
@keyframes bar-grow { from { width: 0; } to { width: var(--w); } }
.esc-foot {
    display: flex; justify-content: space-between;
    align-items: center;
    padding-top: 1.2rem;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    position: relative; z-index: 1;
}
.esc-tag {
    padding: 0.3rem 0.8rem;
    background: rgba(255,255,255,0.15);
    border-radius: 100px;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
}

/* CTA */
.cta { padding: 6rem 0; background: var(--c-mist); }
.cta-card {
    background: #fff;
    border-radius: 10px;
    padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
    text-align: center;
    box-shadow: 0 30px 80px -30px rgba(44,88,112,0.2);
    position: relative;
    overflow: hidden;
    background-image:
        radial-gradient(circle at 0% 100%, rgba(124,177,200,0.1) 0, transparent 50%),
        radial-gradient(circle at 100% 0%, rgba(124,168,149,0.08) 0, transparent 50%);
}
.cta-card h2 {
    font-family: var(--f-serif);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 400;
    line-height: 1.3;
    color: var(--c-sea-deep);
    margin-bottom: 1.2rem;
    letter-spacing: 0.04em;
}
.cta-card p {
    font-size: 1.05rem;
    color: var(--c-ink-soft);
    margin-bottom: 2.2rem;
    max-width: 480px;
    margin-left: auto; margin-right: auto;
}

/* 页脚 */
.site-footer {
    background: var(--c-sea-deep);
    color: rgba(255,255,255,0.75);
    padding: 5rem 0 2rem;
    position: relative;
}
.footer-inner {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 4rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    align-items: center;
}
.footer-brand .logo { color: #fff; }
.footer-brand .logo-en { color: rgba(255,255,255,0.5); }
.footer-desc {
    margin-top: 1.2rem;
    font-size: 0.92rem;
    line-height: 1.8;
    max-width: 320px;
}
.footer-cols {
    display: flex;
    justify-content: flex-end;
}
.footer-col {
    width: 100%;
}
.footer-col h6 {
    font-family: var(--f-en);
    font-size: 0.78rem;
    letter-spacing: 0.3em;
    color: var(--c-sea-light);
    margin-bottom: 1.4rem;
    text-transform: uppercase;
    font-weight: 500;
}
.footer-col ul {
    display: flex;
    flex-wrap: wrap;
    gap: 2.4rem;
    align-items: center;
}
.footer-col ul li {
    margin-bottom: 0;
    font-size: 0.95rem;
    position: relative;
}
.footer-col ul li + li::before {
    content: '';
    position: absolute;
    left: -1.2rem;
    top: 50%;
    width: 3px;
    height: 3px;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    transform: translateY(-50%);
}
.footer-col a { transition: color .25s ease; }
.footer-col a:hover { color: #fff; }
.socials { display: flex; gap: 0.8rem; margin-top: 1.6rem; }
.socials a {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex; align-items: center; justify-content: center;
    color: rgba(255,255,255,0.7);
    transition: all .3s ease;
}
.socials a:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.4);
    color: #fff;
    transform: translateY(-2px);
}
.footer-bottom {
    max-width: var(--container);
    margin: 2rem auto 0;
    padding: 0 var(--gutter);
    display: flex; justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.05em;
    flex-wrap: wrap;
    gap: 1rem;
}
.footer-domain {
    font-family: var(--f-en);
    color: rgba(255,255,255,0.75);
    letter-spacing: 0.12em;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding-bottom: 2px;
    transition: color .3s ease, border-color .3s ease;
}
.footer-domain:hover {
    color: #fff;
    border-color: rgba(255,255,255,0.6);
}

/* Reveal 动画 */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1);
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* 响应式 */
@media (max-width: 1024px) {
    .geo-grid { grid-template-columns: repeat(2, 1fr); }
    .breeze-flow { grid-template-columns: 1fr; gap: 1rem; }
    .bf-arrow { transform: rotate(90deg); margin: 0.5rem auto; }
    .footer-inner { grid-template-columns: 1fr; gap: 2.5rem; }
    .footer-cols { justify-content: flex-start; }
}

@media (max-width: 768px) {
    section { padding: 5rem 0; }
    .hero { padding: 7rem 0 3rem; min-height: auto; }
    .hero-stats { flex-wrap: wrap; gap: 1.2rem; }
    .stat-divider { display: none; }
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: 100%; left: 0; right: 0;
        background: rgba(251,250,246,0.96);
        backdrop-filter: blur(14px);
        padding: 1.5rem var(--gutter);
        gap: 1.2rem;
        border-bottom: 1px solid var(--c-line);
    }
    .two-col { grid-template-columns: 1fr; gap: 3rem; }
    .story-timeline { grid-template-columns: 1fr; }
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 200px;
    }
    .g-tall { grid-row: span 1; }
    .g-wide { grid-column: span 2; }
    .footer-cols { justify-content: flex-start; }
    .footer-col ul { gap: 1.6rem; }
    .footer-bottom { justify-content: center; text-align: center; }
    .scroll-hint { display: none; }
    .sun { width: 140px; height: 140px; }
}

@media (max-width: 480px) {
    .geo-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 220px; }
    .g-wide { grid-column: span 1; }
    .footer-col ul { gap: 1.2rem 1.4rem; }
    .logo-en { display: none; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .btn { justify-content: center; }
}