/* 基础变量体系 (继承首页契约) */
:root {
    --primary: #ef7523;
    --primary-glow: rgba(239, 117, 35, 0.3);
    --primary-dim: rgba(239, 117, 35, 0.1);
    --bg-deep: #060709;
    --bg-surface: #0e1116;
    --bg-elevated: #161a22;
    --text-main: #f4f5f6;
    --text-muted: #9aa0a6;
    --border: rgba(255, 255, 255, 0.06);
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 8px;
    --transition: all 0.15s ease;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
}

/* 重置与基础设置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font);
    background-color: var(--bg-deep);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* 强制文本换行规范 */
.char, .howl, .howl-max, .howl-sub, p, span, div, article, section, aside {
    word-break: break-word;
    overflow-wrap: break-word;
}
.char {
    word-break: keep-all;
}
.howl, .howl-max, .howl-sub {
    white-space: normal;
}

/* 强制Flexbox/Grid规则 */
.herd, .sniff, .crown-inner {
    display: flex;
    flex-wrap: wrap;
}
.herd > *, .sniff > * {
    min-width: 0;
}

/* 容器版心 */
.den, .lex {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}
.lex {
    max-width: 1000px;
}

/* 导航栏复用样式 */
.crown {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(6, 7, 9, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}
.crown-inner {
    justify-content: space-between;
    align-items: center;
    height: 72px;
}
.snout {
    display: flex;
    align-items: center;
}
.snout img {
    height: 28px;
    width: auto;
    display: block;
}
.sniff {
    gap: 8px;
    align-items: center;
}
.bind {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.bind:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}
.bind.active {
    color: var(--primary);
    background: var(--primary-dim);
}

/* 排版尺度 */
.howl-max {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, #a0a5aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.howl {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-main);
}
.howl-sub {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}
.char {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* 首屏区域 (Hero变体) */
.bark {
    padding: 180px 0 100px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}
.bark::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 80vw;
    height: 80vw;
    max-width: 1000px;
    max-height: 1000px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 60%);
    opacity: 0.5;
    z-index: -1;
    pointer-events: none;
}
.bark .char {
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.25rem;
}

/* 视觉焦点徽章 (代替图片) */
.pelt-shield {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border-radius: 30px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.pelt-shield:hover {
    transform: translateY(-5px);
    box-shadow: 0 30px 60px rgba(239, 117, 35, 0.2), inset 0 1px 0 rgba(255,255,255,0.2);
}
.pelt-shield::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 32px;
    background: linear-gradient(135deg, var(--primary), transparent 50%);
    z-index: -1;
    opacity: 0.5;
}

/* 卡片与网格 (继承首页语法) */
.aura {
    padding: 100px 0;
    position: relative;
}
.aura-crown {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.herd-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}
.glyph {
    background: rgba(14, 17, 22, 0.65);
    backdrop-filter: blur(30px);
    padding: 3rem 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: 0 40px 100px rgba(0,0,0,0.9), inset 0 1px 0 rgba(255,255,255,0.05);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.glyph:hover {
    border-color: rgba(239, 117, 35, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 40px 100px rgba(0,0,0,0.9), 0 0 40px var(--primary-dim), inset 0 1px 0 rgba(255,255,255,0.1);
}
.mark {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    color: var(--primary);
}
.mark svg {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

/* 构建资产区 (Aside 变体) */
.fetch {
    padding: 100px 0;
    background: linear-gradient(to bottom, transparent, rgba(14, 17, 22, 0.5), transparent);
}
.fetch-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 4rem;
    align-items: center;
}
.fetch-pelt {
    flex: 1;
    min-width: 320px;
}
.fetch-visual {
    flex: 1;
    min-width: 320px;
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.chord-stack {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 2.5rem;
}
.seed-row {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
}
.seed-row .mark {
    margin-bottom: 0;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
}
.seed-row .mark svg {
    width: 24px;
    height: 24px;
}

/* 视觉结构 (数据流转概念) */
.rib-layer {
    position: absolute;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    gap: 1rem;
    transition: var(--transition);
}
.rib-layer:nth-child(1) {
    width: 280px;
    top: 10%;
    left: 10%;
    z-index: 1;
    opacity: 0.6;
    transform: scale(0.9);
}
.rib-layer:nth-child(2) {
    width: 320px;
    top: 35%;
    left: 20%;
    z-index: 2;
    border-color: rgba(239, 117, 35, 0.4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.8), 0 0 30px var(--primary-dim);
}
.rib-layer:nth-child(3) {
    width: 260px;
    bottom: 15%;
    right: 10%;
    z-index: 3;
    opacity: 0.8;
}
.fetch-visual:hover .rib-layer {
    transform: translateY(-5px);
}
.rib-line {
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    flex: 1;
    overflow: hidden;
    position: relative;
}
.rib-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    height: 100%;
    width: 50%;
    background: var(--primary);
    animation: flow 2s infinite ease-in-out;
}
@keyframes flow {
    to { left: 200%; }
}

/* 行动入口 (CTA 变体) */
.pack {
    padding: 100px 0 140px;
}
.pack-box {
    background: linear-gradient(145deg, rgba(22, 26, 34, 0.8), rgba(14, 17, 22, 0.9));
    border: 1px solid rgba(239, 117, 35, 0.2);
    border-radius: 32px;
    padding: 5rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0,0,0,0.8);
}
.pack-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.5;
}
.pack-box .howl {
    margin-bottom: 1rem;
}
.pack-box .char {
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* 按钮语法 */
.tap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background: var(--primary);
    color: #fff;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px var(--primary-glow), inset 0 1px 0 rgba(255,255,255,0.2);
    transition: var(--transition);
    border: none;
    cursor: pointer;
}
.tap:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(239, 117, 35, 0.5), inset 0 1px 0 rgba(255,255,255,0.3);
    background: #f1873b;
}

/* 页脚 */
.heel {
    border-top: 1px solid var(--border);
    padding: 60px 0 40px;
    background: var(--bg-deep);
}
.heel-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}
.root-brand {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
}
.root-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}
.root-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}
.root-links a:hover {
    color: var(--primary);
}
.root-char {
    width: 100%;
    text-align: left;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.03);
    font-size: 0.875rem;
    color: rgba(154, 160, 166, 0.5);
}

/* 响应式断点 */
@media (max-width: 1024px) {
    .howl-max { font-size: 3rem; }
    .bark { padding: 140px 0 80px; }
    .fetch-layout { flex-direction: column; }
    .fetch-visual { width: 100%; height: 300px; }
}
@media (max-width: 768px) {
    .sniff { display: none; /* 移动端简化导航，实际项目中需JS支持折叠菜单，此处按视觉要求隐藏 */ }
    .herd-grid { grid-template-columns: 1fr; }
    .howl-max { font-size: 2.5rem; }
    .howl { font-size: 1.75rem; }
    .pack-box { padding: 3rem 1.5rem; }
    .heel-inner { flex-direction: column; align-items: flex-start; }
}

.sniff-crown {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    word-break: break-word;
    color: var(--text-main);
}
.sniff-crown,
.sniff-crown *,
.sniff-crown *::before,
.sniff-crown *::after {
    box-sizing: border-box;
}

.sniff-crown nav,
.sniff-crown div,
.sniff-crown section,
.sniff-crown article,
.sniff-crown aside,
.sniff-crown p,
.sniff-crown h1,
.sniff-crown h2,
.sniff-crown h3,
.sniff-crown h4,
.sniff-crown h5,
.sniff-crown h6,
.sniff-crown a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.sniff-crown p,
.sniff-crown h1,
.sniff-crown h2,
.sniff-crown h3,
.sniff-crown h4,
.sniff-crown h5,
.sniff-crown h6 {
    text-decoration: none;
}

.sniff-crown img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.sniff-crown {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.sniff-crown a.sniff-bind {
    --aisite-shell-nav-padding: 0;
    --aisite-shell-nav-margin: 0;
    --aisite-shell-nav-line-height: normal;
    --aisite-shell-nav-display: inline;
    --aisite-shell-nav-height: auto;
    --aisite-shell-nav-min-height: auto;
}

.sniff-crown a.sniff-bind,
.sniff-crown a.sniff-bind:hover,
.sniff-crown a.sniff-bind:focus,
.sniff-crown a.sniff-bind:active,
.sniff-crown a.sniff-bind.active,
.sniff-crown a.sniff-bind[aria-current="page"] {
    background: transparent;
    border: none;
    border-bottom: none;
    box-shadow: none;
    outline: none;
    text-decoration: none;
    padding: var(--aisite-shell-nav-padding, 0);
    margin: var(--aisite-shell-nav-margin, 0);
    line-height: var(--aisite-shell-nav-line-height, normal);
    display: var(--aisite-shell-nav-display, inline);
    height: var(--aisite-shell-nav-height, auto);
    min-height: var(--aisite-shell-nav-min-height, auto);
}

.sniff-crown .sniff-sniff, .sniff-crown .sniff-crown-inner{
            display: flex;
            flex-wrap: wrap;
        }

.sniff-crown .sniff-sniff > *, .sniff-crown .sniff-crown-inner > *{
            min-width: 0;
        }

.sniff-crown .sniff-den{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.sniff-crown{
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(6, 7, 9, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

.sniff-crown .sniff-crown-inner{
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

.sniff-crown .sniff-snout img{
            height: 28px;
            width: auto;
        }

.sniff-crown .sniff-sniff{
            gap: 2rem;
            align-items: center;
        }

.sniff-crown .sniff-bind{
            font-size: 0.95rem;
            font-weight: 500;
            color: #9aa0a6;
            position: relative;
        }

.sniff-crown .sniff-bind:hover{
            color: #f4f5f6;
        }

.sniff-crown .sniff-bind.active{
            color: #ef7523;
        }

.sniff-crown .sniff-bind.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ef7523;
            box-shadow: 0 -2px 10px rgba(239, 117, 35, 0.3);
        }

@media (max-width: 768px){.sniff-crown .sniff-sniff{ display: none;  }}

.sniff-crown {
    background: rgb(6, 7, 9);
    background-image: none;
}

.tail-heel {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    word-break: break-word;
    color: var(--text-main);
}
.tail-heel,
.tail-heel *,
.tail-heel *::before,
.tail-heel *::after {
    box-sizing: border-box;
}

.tail-heel nav,
.tail-heel div,
.tail-heel section,
.tail-heel article,
.tail-heel aside,
.tail-heel p,
.tail-heel h1,
.tail-heel h2,
.tail-heel h3,
.tail-heel h4,
.tail-heel h5,
.tail-heel h6,
.tail-heel a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.tail-heel p,
.tail-heel h1,
.tail-heel h2,
.tail-heel h3,
.tail-heel h4,
.tail-heel h5,
.tail-heel h6 {
    text-decoration: none;
}

.tail-heel img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.tail-heel {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.tail-heel a,
.tail-heel a:hover,
.tail-heel a:focus,
.tail-heel a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.tail-heel .tail-herd{
            display: flex;
            flex-wrap: wrap;
        }

.tail-heel .tail-herd > *{
            min-width: 0;
        }

.tail-heel .tail-char-sm{
            font-size: 0.875rem;
            color: #9aa0a6;
        }

.tail-heel .tail-den{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.tail-heel .tail-bind{
            font-size: 0.95rem;
            font-weight: 500;
            color: #9aa0a6;
            position: relative;
        }

.tail-heel .tail-bind:hover{
            color: #f4f5f6;
        }

.tail-heel .tail-bind.active{
            color: #ef7523;
        }

.tail-heel .tail-bind.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ef7523;
            box-shadow: 0 -2px 10px rgba(239, 117, 35, 0.3);
        }

.tail-heel{
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: #060709;
            padding: 4rem 0 2rem;
        }

.tail-heel .tail-root-grid{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 4rem;
            margin-bottom: 4rem;
        }

.tail-heel .tail-root-grid > *{
            min-width: 0;
        }

.tail-heel .tail-root-brand{
            max-width: 300px;
        }

.tail-heel .tail-howl-snout{
            font-size: 1.5rem;
            font-weight: 800;
            color: #f4f5f6;
            display: block;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

.tail-heel .tail-root-links{
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

.tail-heel .tail-root-links > *{
            min-width: 0;
        }

.tail-heel .tail-root-bottom{
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

@media (max-width: 768px){.tail-heel .tail-root-grid{ flex-direction: column; gap: 2rem; }}