/* =========================================
   home.css - 首页高级动态 (纠偏 & 弹性留白版)
   ========================================= */

/* 🌟 全局弹性阻尼感：让滚动到顶部或底部有弹性反馈 */
html { 
    scroll-behavior: smooth; 
    overscroll-behavior-y: contain; /* 限制滚动链，强化阻尼感 */
}

/* 在 Body 底部增加巨大的呼吸空间，模拟画廊最后一段留白 */
body {
    padding-bottom: 25vh; /* 底部预留 1/4 屏幕的空白区域 */
}

.preloader { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: var(--bg-color); z-index: 99999; display: flex; justify-content: center; align-items: center; transition: transform 1.2s cubic-bezier(0.77, 0, 0.175, 1); }
.preloader.fade-out { transform: translateY(-100%); }
.preloader-text { font-family: var(--font-serif); color: var(--fg-color); font-size: 2rem; letter-spacing: 0.2em; transition: opacity 0.5s; }
.preloader.fade-out .preloader-text { opacity: 0; }

.reveal-on-load { opacity: 0; transform: translateY(40px); transition: opacity 1.5s var(--ease-out-expo), transform 1.5s var(--ease-out-expo); }
.reveal-on-load.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

.hero { position: relative; height: 100vh; width: 100vw; overflow: hidden; display: flex; align-items: center; justify-content: center; background-color: var(--bg-color); }
.hero-canvas-container { position: absolute; width: 100vw; height: 100vh; z-index: 1; overflow: hidden; opacity: 1; }
#particle-canvas { width: 100%; height: 100%; display: block; }

/* 🌟 核心修改：确保标题容器在任何设备都绝对水平垂直居中 */
.hero-title-wrapper { 
    position: relative; 
    z-index: 2; 
    text-align: center; 
    pointer-events: none; 
    mix-blend-mode: difference; 
    color: #fff; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    width: 100%; /* 占满宽度以确保 align-items 生效 */
}

.hero-name-link { display: inline-block; pointer-events: auto; color: inherit; text-decoration: none; transition: opacity 0.4s var(--ease-out-expo), transform 0.4s var(--ease-out-expo); text-align: center; }
.hero-name-link:hover { opacity: 0.6; transform: scale(0.98); }
.hero-name-link .wu-ecology-canvas { pointer-events: auto; cursor: pointer; }

.hero-portfolio-label { font-family: var(--font-sans); font-size: 14px; font-weight: 600; letter-spacing: 0.6em; text-transform: uppercase; margin-bottom: 30px; opacity: 0.9; }

/* 🌟 核心修改：移除 H1 的不必要边距 */
.hero-title { font-family: var(--font-serif); line-height: 0.8; font-weight: 400; font-size: 0; margin-bottom: 25px; width: 100%; }
.solid-text { font-size: clamp(3rem, 11vw, 11vw); display: inline-block; letter-spacing: -0.01em; margin: 0 auto; }

/* 🌟 核心修改：移除 margin-left: 8px，确保 SVG 绝对居中 */
.wu-ecology-canvas { 
    height: clamp(5rem, 18vw, 18rem); 
    width: clamp(10rem, 32vw, 32vw); 
    margin-left: 0; /* 彻底移除偏置 */
    pointer-events: none; 
}
.wu-text { font-family: var(--font-serif); font-size: 220px; fill: transparent; stroke: rgba(255,255,255,0.7); stroke-width: 1px; letter-spacing: -0.05em; font-weight: 400; animation: eco-pulse 3s infinite alternate ease-in-out; }

@keyframes eco-pulse {
    0% { stroke-width: 1px; stroke: rgba(255,255,255,0.4); filter: drop-shadow(0 0 0px rgba(255,255,255,0)); }
    100% { stroke-width: 1.5px; stroke: rgba(255,255,255,0.85); filter: drop-shadow(0 0 4px rgba(255,255,255,0.15)); }
}
.hero-subtitle { font-family: var(--font-sans); font-size: clamp(8px, 1vw, 10px); letter-spacing: 0.4em; text-transform: uppercase; opacity: 0.8; }

.marquee-section { padding: 60px 0; border-top: 1px solid var(--line-color); background-color: var(--bg-color); display: flex; flex-direction: column; overflow: hidden; position: relative; cursor: pointer; }
.marquee-row { display: flex; white-space: nowrap; width: max-content; will-change: transform; align-items: center;}
.marquee-word { font-family: var(--font-serif); font-size: clamp(1rem, 2.2vw, 2.5rem); letter-spacing: 0.05em; text-transform: uppercase; color: var(--fg-color); padding: 0 clamp(15px, 3vw, 30px); display: inline-block; transition: opacity 0.6s var(--ease-out-expo); }
.marquee-section.is-hovered .marquee-word { opacity: 1 !important; color: var(--fg-color) !important;}

.row-layer-0 .marquee-word { font-weight: 400; }
.row-layer-1 { margin-top: -0.9em; mix-blend-mode: multiply; }
.row-layer-1 .marquee-word { color: transparent; -webkit-text-stroke: 1px rgba(0,0,0,0.7); }
.row-layer-2 { margin-top: -1.3em; mix-blend-mode: multiply; }
.row-layer-2 .marquee-word { font-size: clamp(1.8rem, 3.5vw, 4.5rem); color: transparent; -webkit-text-stroke: 1.5px rgba(0,0,0,0.25); }

.home-footer { padding: clamp(60px, 10vh, 100px) 0; background-color: var(--bg-color); border-top: 1px solid var(--line-color); }
.footer-grid { display: grid; grid-template-columns: 6fr 4fr; gap: clamp(40px, 8vw, 100px); align-items: stretch; }
.footer-bio { display: flex; flex-direction: column; align-items: flex-start; }
.bio-description { font-family: var(--font-serif); font-size: clamp(1rem, 1.5vw, 1.5rem); line-height: 1.6; color: rgba(0,0,0,0.8); margin: 20px 0 30px; max-width: 600px; font-weight: 400; }
.big-link { font-size: 0.9rem; font-weight: 300; border-bottom: 1px solid var(--line-color); padding-bottom: 5px; color: var(--fg-color); text-transform: uppercase; letter-spacing: 0.1em;}
.footer-contact { display: flex; flex-direction: column; gap: clamp(20px, 4vw, 40px); border-left: 1px solid var(--line-color); padding-left: clamp(20px, 5vw, 50px); }
.contact-block { display: flex; flex-direction: column; gap: 10px; }
.contact-text { font-size: 0.9rem; color: var(--fg-color); line-height: 1.5; font-weight: 400; }
.contact-link { font-size: 0.9rem; color: var(--fg-color); font-weight: 400; text-decoration: none; border-bottom: 1px solid transparent; display: inline-block; width: fit-content; transition: border-color 0.3s; }
.contact-link:hover { border-bottom: 1px solid var(--fg-color); }
.copyright { font-size: 10px; text-transform: uppercase; letter-spacing: 0.2em; opacity: 0.4; color: var(--fg-color); }

.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo); }
.fade-up.is-visible { opacity: 1; transform: translateY(0); }

/* --- 🌟 响应式断点补充 --- */
@media (max-width: 900px) {
    .hero-canvas-container { height: 70vh; }
    .footer-grid { grid-template-columns: 1fr; gap: 50px; }
    .footer-contact { border-left: none; padding-left: 0; border-top: 1px solid var(--line-color); padding-top: 40px; }
}
@media (max-width: 600px) {
    .hero-portfolio-label { font-size: 11px; margin-bottom: 20px;}
    .solid-text { font-size: 14vw; width: 100%; text-align: center; }
    .wu-ecology-canvas { width: 50vw; height: 12vh; margin-left: 0; }
    .hero-subtitle { letter-spacing: 0.2em; font-size: 8px; }
    .marquee-section { padding: 40px 0; }
}