:root {
    --pulse-bg: #f6f8fc;
    --pulse-bg-strong: #eef2ff;
    --pulse-card: #ffffff;
    --pulse-text: #1a1f36;
    --pulse-muted: #65708f;
    --pulse-line: #e2e7f4;
    --pulse-shadow: 0 16px 34px rgba(20, 31, 63, .08);
    --pulse-radius: 20px;
    --pulse-accent: #0a7f78;
}

* {
    box-sizing: border-box;
}

html {
    line-height: 1.5;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    color: var(--pulse-text);
    background:
        radial-gradient(circle at 3% 2%, #e3ecff 0, transparent 30%),
        radial-gradient(circle at 96% 8%, #fbe8d8 0, transparent 34%),
        radial-gradient(circle at 50% 120%, #e3f7f2 0, transparent 40%),
        var(--pulse-bg);
    font-family: "Noto Sans SC", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

h1,
h2,
h3,
h4 {
    font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
    letter-spacing: .01em;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(1160px, calc(100% - 36px));
    margin: 0 auto;
}

.muted {
    color: var(--pulse-muted);
}

.bg-shape {
    position: fixed;
    z-index: -1;
    width: 280px;
    height: 280px;
    border-radius: 999px;
    filter: blur(4px);
    opacity: .66;
}

.bg-shape-a {
    top: -120px;
    left: -90px;
    background: #cfe2ff;
    animation: floatA 12s ease-in-out infinite;
}

.bg-shape-b {
    right: -110px;
    bottom: -140px;
    background: #d7f1e8;
    animation: floatB 17s ease-in-out infinite;
}

@keyframes floatA {
    0%,
    100% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(28px) translateX(10px); }
}

@keyframes floatB {
    0%,
    100% { transform: translateY(0) translateX(0); }
    50% { transform: translateY(-24px) translateX(-8px); }
}

.top-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1200;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--pulse-accent), #2fa7a0);
    box-shadow: 0 0 16px rgba(11, 148, 139, .45);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1100;
    backdrop-filter: blur(14px);
    background: rgba(246, 248, 252, .84);
    border-bottom: 1px solid rgba(255, 255, 255, .95);
    transition: box-shadow .22s ease, background .22s ease;
}

.site-header.is-scrolled {
    background: rgba(246, 248, 252, .92);
    box-shadow: 0 8px 24px rgba(24, 35, 66, .08);
}

.nav-wrap {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
}

.brand img {
    height: 36px;
    width: auto;
    border-radius: 8px;
}

.main-nav {
    margin-left: auto;
}

.search-wrap {
    position: relative;
    margin-left: 8px;
}

.search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--pulse-line);
    border-radius: 12px;
    background: #fff;
    color: var(--pulse-muted);
    cursor: pointer;
    transition: color .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.search-toggle:hover,
.search-wrap.is-open .search-toggle {
    color: var(--pulse-accent);
    border-color: rgba(10, 127, 120, .42);
    background: rgba(10, 127, 120, .08);
    box-shadow: 0 8px 18px rgba(10, 127, 120, .15);
}

.search-toggle svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.site-search {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 30;
    width: min(420px, calc(100vw - 24px));
    padding: 10px;
    border: 1px solid var(--pulse-line);
    border-radius: 14px;
    background: rgba(255, 255, 255, .98);
    box-shadow: var(--pulse-shadow);
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}

.search-wrap.is-open .site-search {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.site-search input {
    width: 100%;
    flex: 1;
    height: 40px;
    border: 1px solid var(--pulse-line);
    border-radius: 11px;
    background: #fff;
    padding: 0 12px;
    color: var(--pulse-text);
    font: inherit;
}

.site-search input:focus {
    outline: 0;
    border-color: rgba(10, 127, 120, .56);
    box-shadow: 0 0 0 3px rgba(10, 127, 120, .12);
}

.site-search button {
    min-width: 64px;
    height: 40px;
    border: 0;
    border-radius: 11px;
    background: var(--pulse-accent);
    color: #fff;
    padding: 0 12px;
    font-size: .9rem;
    font-weight: 700;
    cursor: pointer;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.nav-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-list > li {
    position: relative;
}

.nav-list > li > a {
    display: inline-flex;
    align-items: center;
    min-height: 42px;
    padding: 0 14px;
    position: relative;
    border-radius: 12px;
    color: var(--pulse-muted);
    font-weight: 600;
    transition: color .2s ease, background .2s ease;
}

.nav-list > li > a:hover,
.nav-list > li:hover > a,
.nav-list > li:focus-within > a {
    color: var(--pulse-accent);
    background: #fff;
}

.nav-list > li.has-children > a {
    padding-right: 30px;
}

.nav-list > li.has-children > a::after {
    content: "";
    position: absolute;
    right: 12px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: translateY(-65%) rotate(45deg);
    opacity: .82;
}

.nav-list li ul {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    margin: 0;
    padding: 8px;
    list-style: none;
    border-radius: 14px;
    border: 1px solid var(--pulse-line);
    background: #fff;
    box-shadow: var(--pulse-shadow);
    z-index: 30;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(6px);
    transition: opacity .16s ease, transform .16s ease, visibility .16s ease;
}

.nav-list li:hover > ul,
.nav-list li:focus-within > ul {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.nav-list li li {
    position: relative;
}

.nav-list li li > ul {
    top: -8px;
    left: calc(100% - 10px);
    transform: translateX(6px);
}

.nav-list li li:hover > ul,
.nav-list li li:focus-within > ul {
    transform: translateX(0);
}

.nav-list li ul a {
    display: block;
    padding: 8px 12px;
    border-radius: 10px;
    color: var(--pulse-muted);
    position: relative;
}

.nav-list li ul a:hover {
    background: rgba(10, 127, 120, .08);
    color: var(--pulse-accent);
}

.nav-list li li.has-children > a {
    padding-right: 26px;
}

.nav-list li li.has-children > a::after {
    content: "";
    position: absolute;
    right: 10px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: translateY(-50%) rotate(45deg);
    opacity: .78;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 4px 10px rgba(33, 46, 84, .08);
    cursor: pointer;
}

.menu-toggle span {
    width: 18px;
    height: 2px;
    margin: 0 auto;
    background: var(--pulse-text);
    transition: transform .2s ease;
}

.notice-bar {
    border-top: 1px solid var(--pulse-line);
}

.notice-bar .container {
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.notice-bar span {
    min-width: 42px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--pulse-accent);
    color: #fff;
    font-size: .72rem;
    font-weight: 700;
}

.notice-bar p {
    margin: 0;
    color: var(--pulse-muted);
    font-size: .92rem;
}

.page-shell {
    padding: 30px 0 56px;
}

.hero,
.page-head {
    margin-bottom: 24px;
    padding: 30px;
    border-radius: var(--pulse-radius);
    border: 1px solid rgba(255, 255, 255, .92);
    background: linear-gradient(135deg, rgba(255, 255, 255, .95), rgba(255, 255, 255, .74));
    box-shadow: var(--pulse-shadow);
}

.hero-home {
    position: relative;
    overflow: hidden;
}

.hero-home::after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(10, 127, 120, .18), transparent 65%);
    pointer-events: none;
}

.kicker {
    margin: 0 0 8px;
    color: var(--pulse-accent);
    font-size: .72rem;
    letter-spacing: .14em;
    text-transform: uppercase;
    font-weight: 700;
}

.hero h1,
.page-head h1 {
    margin: 0;
    line-height: 1.2;
    font-size: clamp(2rem, 3vw, 2.9rem);
}

.hero p,
.page-head p {
    margin: 10px 0 0;
    color: var(--pulse-muted);
    max-width: 72ch;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
}

.content-grid.no-sidebar {
    grid-template-columns: minmax(0, 1fr);
}

.content-grid.sidebar-left {
    grid-template-columns: 320px minmax(0, 1fr);
}

.content-grid.sidebar-left > section {
    order: 2;
}

.content-grid.sidebar-left > aside {
    order: 1;
}

.story-feed {
    display: grid;
    gap: 22px;
    grid-template-columns: minmax(0, 1fr);
}

.content-grid.no-sidebar .story-feed {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.story-card {
    position: relative;
    display: flex;
    flex-direction: column;
    border-radius: var(--pulse-radius);
    border: 1px solid var(--pulse-line);
    background: var(--pulse-card);
    box-shadow: 0 10px 26px rgba(25, 37, 70, .06);
    overflow: hidden;
    min-height: 240px;
}

.story-card.no-cover::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--pulse-accent), #56b9b2);
}

.story-media {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #dde7f6;
}

.story-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.01);
    transition: transform .45s ease;
}

.story-card:hover .story-media img {
    transform: scale(1.06);
}

.story-body {
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
    padding: 20px 20px 18px;
}

.story-card.no-cover .story-body {
    padding-top: 24px;
}

.story-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    font-size: .85rem;
    color: var(--pulse-muted);
}

.story-chip {
    display: inline-flex;
    align-items: center;
    height: 24px;
    padding: 0 10px;
    border-radius: 999px;
    background: rgba(10, 127, 120, .12);
    color: var(--pulse-accent);
    font-weight: 600;
}

.story-title {
    margin: 0;
    line-height: 1.35;
    font-size: 1.35rem;
}

.story-title a:hover {
    color: var(--pulse-accent);
}

.story-excerpt {
    margin: 0;
    color: var(--pulse-muted);
    line-height: 1.75;
}

.story-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.story-tag {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: #f1f5ff;
    color: #4d5f8b;
    font-size: .84rem;
}

.read-more {
    margin-left: auto;
    color: var(--pulse-accent);
    font-weight: 700;
    letter-spacing: .01em;
}

.pager {
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pager a,
.pager .current {
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border-radius: 11px;
    border: 1px solid var(--pulse-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    color: var(--pulse-muted);
    font-weight: 700;
}

.pager a:hover {
    border-color: rgba(10, 127, 120, .38);
    color: var(--pulse-accent);
}

.pager .current {
    border-color: var(--pulse-accent);
    color: #fff;
    background: var(--pulse-accent);
}

.pager.is-hidden {
    display: none;
}

.pager-dynamic-controls {
    margin-top: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.pager-load-btn {
    height: 40px;
    padding: 0 18px;
    border: 0;
    border-radius: 12px;
    background: var(--pulse-accent);
    color: #fff;
    font-size: .92rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(12, 89, 84, .2);
}

.pager-load-btn:disabled {
    cursor: default;
    opacity: .64;
    box-shadow: none;
}

.pager-load-hint {
    margin: 0;
    font-size: .9rem;
}

.pager-auto-sentinel {
    width: 100%;
    height: 1px;
}

.empty-result {
    padding: 18px 20px;
    border-radius: 14px;
    border: 1px dashed var(--pulse-line);
    background: rgba(255, 255, 255, .72);
}

#sidebar.widget-area {
    position: sticky;
    top: 98px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

#sidebar .widget {
    border-radius: 16px;
    border: 1px solid var(--pulse-line);
    background: #fff;
    overflow: hidden;
    box-shadow: 0 10px 24px rgba(25, 37, 70, .05);
}

#sidebar .widget-title {
    margin: 0;
    padding: 14px 16px;
    border-bottom: 1px solid var(--pulse-line);
}

#sidebar .widget-title .cat {
    font-size: .95rem;
    color: var(--pulse-text);
}

#sidebar .widget ul,
#sidebar .widget .tagcloud,
#sidebar .widget .textwidget {
    margin: 0;
    padding: 12px 16px 16px;
    list-style: none;
    color: var(--pulse-muted);
}

#sidebar .widget li {
    margin: 8px 0;
}

#sidebar .widget a:hover {
    color: var(--pulse-accent);
}

.post-cover {
    margin: 0 0 18px;
    border-radius: var(--pulse-radius);
    overflow: hidden;
    border: 1px solid var(--pulse-line);
    box-shadow: 0 12px 30px rgba(26, 37, 66, .08);
}

.post-cover img {
    width: 100%;
    max-height: 460px;
    object-fit: cover;
}

.post-detail,
.related,
.comment-panel {
    border-radius: var(--pulse-radius);
    border: 1px solid var(--pulse-line);
    background: #fff;
    box-shadow: 0 10px 24px rgba(25, 37, 70, .05);
}

.post-detail {
    padding: 30px;
}

.post-header h1 {
    margin: 0;
    font-size: clamp(2rem, 2.7vw, 2.8rem);
    line-height: 1.2;
}

.meta-row {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--pulse-muted);
    font-size: .9rem;
}

.meta-row a {
    color: var(--pulse-accent);
    font-weight: 600;
}

.post-summary {
    margin: 14px 0 0;
    color: #5d6784;
    line-height: 1.75;
}

.post-content {
    margin-top: 24px;
    line-height: 1.9;
    word-break: break-word;
}

.post-content h2,
.post-content h3 {
    margin-top: 1.6em;
    line-height: 1.35;
}

.post-content img {
    margin: 14px auto;
    border-radius: 12px;
}

.post-content a {
    color: var(--pulse-accent);
    text-decoration: underline;
}

.tag-list {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-list a {
    padding: 5px 11px;
    border-radius: 999px;
    background: rgba(10, 127, 120, .11);
    color: var(--pulse-accent);
    font-size: .84rem;
    font-weight: 700;
}

.post-nav {
    margin-top: 18px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.post-nav > div {
    padding: 16px;
    border-radius: 14px;
    border: 1px solid var(--pulse-line);
    background: #fff;
}

.post-nav small {
    display: block;
    margin-bottom: 6px;
    color: var(--pulse-muted);
}

.post-nav a:hover {
    color: var(--pulse-accent);
}

.related {
    margin-top: 18px;
    padding: 18px 20px;
}

.related h3 {
    margin: 0 0 10px;
}

.related ul {
    margin: 0;
    padding-left: 18px;
}

.related li {
    margin: 6px 0;
}

.related a:hover {
    color: var(--pulse-accent);
}

.comment-closed {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px dashed var(--pulse-line);
    color: var(--pulse-muted);
}

.comment-panel {
    margin-top: 18px;
    padding: 18px 20px;
}

.comment-panel h3 {
    margin: 0 0 14px;
}

.login-hint {
    margin: 0 0 12px;
    color: var(--pulse-muted);
}

.comment-inputs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.comment-panel label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
    font-size: .92rem;
    color: var(--pulse-muted);
}

.comment-panel input,
.comment-panel textarea {
    width: 100%;
    border: 1px solid var(--pulse-line);
    border-radius: 11px;
    background: #fff;
    padding: 10px 12px;
    font: inherit;
    color: var(--pulse-text);
}

.comment-panel input:focus,
.comment-panel textarea:focus {
    outline: 0;
    border-color: rgba(10, 127, 120, .52);
    box-shadow: 0 0 0 3px rgba(10, 127, 120, .12);
}

.comment-panel button {
    border: 0;
    border-radius: 10px;
    background: var(--pulse-accent);
    color: #fff;
    padding: 10px 16px;
    font-weight: 700;
    cursor: pointer;
}

.reply-badge {
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(10, 127, 120, .12);
    color: var(--pulse-accent);
    font-size: .86rem;
}

.reply-badge button {
    padding: 2px 8px;
    border-radius: 999px;
    background: #fff;
    color: var(--pulse-muted);
}

.comment-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.comment-item {
    padding: 12px 0;
    border-top: 1px solid var(--pulse-line);
}

.comment-item:first-child {
    border-top: 0;
}

.comment-item article {
    display: flex;
    gap: 12px;
}

.comment-item .avatar {
    width: 42px;
    height: 42px;
    border-radius: 999px;
}

.comment-item .comment-body header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
}

.comment-item time {
    color: var(--pulse-muted);
    font-size: .84rem;
}

.comment-item p {
    margin: 0 0 8px;
}

.comment-item a {
    color: var(--pulse-accent);
    font-size: .88rem;
    font-weight: 600;
}

.children {
    margin-left: 54px;
}

.site-footer {
    border-top: 1px solid var(--pulse-line);
    padding: 20px 0 38px;
    color: var(--pulse-muted);
}

.site-footer p {
    margin: 8px 0;
}

.friend-section {
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--pulse-line);
}

.friend-section h3 {
    margin: 0 0 8px;
    color: var(--pulse-text);
    font-size: 1rem;
}

.friend-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
}

.friend-list a:hover {
    color: var(--pulse-accent);
}

.js-reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .55s ease, transform .55s ease;
}

.js-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1200px) {
    .content-grid.no-sidebar .story-feed {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 1024px) {
    .content-grid,
    .content-grid.sidebar-left {
        grid-template-columns: minmax(0, 1fr);
    }

    .content-grid.sidebar-left > section,
    .content-grid.sidebar-left > aside {
        order: initial;
    }

    #sidebar.widget-area {
        position: static;
    }
}

@media (max-width: 860px) {
    .nav-wrap {
        flex-wrap: wrap;
        padding: 10px 0;
    }

    .main-nav {
        position: absolute;
        top: calc(100% + 1px);
        right: 0;
        left: 0;
        padding: 8px 16px 16px;
        border-bottom: 1px solid var(--pulse-line);
        background: rgba(246, 248, 252, .98);
        display: none;
    }

    .search-wrap {
        margin-left: auto;
    }

    .site-search {
        width: min(360px, calc(100vw - 24px));
    }

    .main-nav.is-open {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
    }

    .nav-list > li.has-children > a::after,
    .nav-list li li.has-children > a::after {
        transform: translateY(-55%) rotate(135deg);
    }

    .nav-list li ul {
        position: static;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
        margin-top: 6px;
        border-style: dashed;
        box-shadow: none;
    }

    .menu-toggle {
        display: inline-flex;
        margin-left: 8px;
    }

    .story-card {
        min-height: initial;
    }
}

@media (max-width: 680px) {
    .container {
        width: calc(100% - 24px);
    }

    .hero,
    .page-head,
    .post-detail,
    .related,
    .comment-panel {
        padding: 16px;
    }

    .comment-inputs {
        grid-template-columns: minmax(0, 1fr);
    }

    .post-nav {
        grid-template-columns: minmax(0, 1fr);
    }
}